Moving vcard UI to ContactsCommon.

Moving all class in vcard directory in preparation to move
ImportExportDialogFragment.

Bug: 6993891
Change-Id: I4391c6e63d20ebe91e240001885a6ce18388e51f

15 files changed, 3585 insertions, 0 deletions

diff --git a/src/com/android/contacts/common/vcard/CancelActivity.java b/src/com/android/contacts/common/vcard/CancelActivity.java
new file mode 100644
index 00000000..20869f74
--- /dev/null
+++ b/src/com/android/contacts/common/vcard/CancelActivity.java
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.contacts.common.vcard;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.ServiceConnection;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.IBinder;
+import android.util.Log;
+
+import com.android.contacts.common.R;
+
+/**
+ * The Activity for canceling vCard import/export.
+ */
+public class CancelActivity extends Activity implements ServiceConnection {
+    private final String LOG_TAG = "VCardCancel";
+
+    /* package */ final static String JOB_ID = "job_id";
+    /* package */ final static String DISPLAY_NAME = "display_name";
+
+    /**
+     * Type of the process to be canceled. Only used for choosing appropriate title/message.
+     * Must be {@link VCardService#TYPE_IMPORT} or {@link VCardService#TYPE_EXPORT}.
+     */
+    /* package */ final static String TYPE = "type";
+
+    private class RequestCancelListener implements DialogInterface.OnClickListener {
+        @Override
+        public void onClick(DialogInterface dialog, int which) {
+            bindService(new Intent(CancelActivity.this,
+                    VCardService.class), CancelActivity.this, Context.BIND_AUTO_CREATE);
+        }
+    }
+
+    private class CancelListener
+            implements DialogInterface.OnClickListener, DialogInterface.OnCancelListener {
+        @Override
+        public void onClick(DialogInterface dialog, int which) {
+            finish();
+        }
+        @Override
+        public void onCancel(DialogInterface dialog) {
+            finish();
+        }
+    }
+
+    private final CancelListener mCancelListener = new CancelListener();
+    private int mJobId;
+    private String mDisplayName;
+    private int mType;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        final Uri uri = getIntent().getData();
+        mJobId = Integer.parseInt(uri.getQueryParameter(JOB_ID));
+        mDisplayName = uri.getQueryParameter(DISPLAY_NAME);
+        mType = Integer.parseInt(uri.getQueryParameter(TYPE));
+        showDialog(R.id.dialog_cancel_confirmation);
+    }
+
+    @Override
+    protected Dialog onCreateDialog(int id, Bundle bundle) {
+        switch (id) {
+        case R.id.dialog_cancel_confirmation: {
+            final String message;
+            if (mType == VCardService.TYPE_IMPORT) {
+                message = getString(R.string.cancel_import_confirmation_message, mDisplayName);
+            } else {
+                message = getString(R.string.cancel_export_confirmation_message, mDisplayName);
+            }
+            final AlertDialog.Builder builder = new AlertDialog.Builder(this)
+                    .setMessage(message)
+                    .setPositiveButton(android.R.string.ok, new RequestCancelListener())
+                    .setOnCancelListener(mCancelListener)
+                    .setNegativeButton(android.R.string.cancel, mCancelListener);
+            return builder.create();
+        }
+        case R.id.dialog_cancel_failed:
+            final AlertDialog.Builder builder = new AlertDialog.Builder(this)
+                    .setTitle(R.string.cancel_vcard_import_or_export_failed)
+                    .setIconAttribute(android.R.attr.alertDialogIcon)
+                    .setMessage(getString(R.string.fail_reason_unknown))
+                    .setOnCancelListener(mCancelListener)
+                    .setPositiveButton(android.R.string.ok, mCancelListener);
+            return builder.create();
+        default:
+            Log.w(LOG_TAG, "Unknown dialog id: " + id);
+            break;
+        }
+        return super.onCreateDialog(id, bundle);
+    }
+
+    @Override
+    public void onServiceConnected(ComponentName name, IBinder binder) {
+        VCardService service = ((VCardService.MyBinder) binder).getService();
+
+        try {
+            final CancelRequest request = new CancelRequest(mJobId, mDisplayName);
+            service.handleCancelRequest(request, null);
+        } finally {
+            unbindService(this);
+        }
+
+        finish();
+    }
+
+    @Override
+    public void onServiceDisconnected(ComponentName name) {
+        // do nothing
+    }
+}
diff --git a/src/com/android/contacts/common/vcard/CancelRequest.java b/src/com/android/contacts/common/vcard/CancelRequest.java
new file mode 100644
index 00000000..a5eb4aa3
--- /dev/null
+++ b/src/com/android/contacts/common/vcard/CancelRequest.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.contacts.common.vcard;
+
+/**
+ * Class representing one request for canceling vCard import/export.
+ */
+public class CancelRequest {
+    public final int jobId;
+    /**
+     * Name used for showing users some useful info. Typically a file name.
+     * Must not be used to do some actual operations.
+     */
+    public final String displayName;
+    public CancelRequest(int jobId, String displayName) {
+        this.jobId = jobId;
+        this.displayName = displayName;
+    }
+}
diff --git a/src/com/android/contacts/common/vcard/ExportProcessor.java b/src/com/android/contacts/common/vcard/ExportProcessor.java
new file mode 100644
index 00000000..0d5c2f35
--- /dev/null
+++ b/src/com/android/contacts/common/vcard/ExportProcessor.java
@@ -0,0 +1,292 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.contacts.common.vcard;
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.res.Resources;
+import android.net.Uri;
+import android.provider.ContactsContract.Contacts;
+import android.provider.ContactsContract.RawContactsEntity;
+import android.text.TextUtils;
+import android.util.Log;
+
+import com.android.contacts.common.R;
+import com.android.vcard.VCardComposer;
+import com.android.vcard.VCardConfig;
+
+import java.io.BufferedWriter;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
+
+/**
+ * Class for processing one export request from a user. Dropped after exporting requested Uri(s).
+ * {@link VCardService} will create another object when there is another export request.
+ */
+public class ExportProcessor extends ProcessorBase {
+    private static final String LOG_TAG = "VCardExport";
+    private static final boolean DEBUG = VCardService.DEBUG;
+
+    private final VCardService mService;
+    private final ContentResolver mResolver;
+    private final NotificationManager mNotificationManager;
+    private final ExportRequest mExportRequest;
+    private final int mJobId;
+    private final String mCallingActivity;
+
+
+    private volatile boolean mCanceled;
+    private volatile boolean mDone;
+
+    public ExportProcessor(VCardService service, ExportRequest exportRequest, int jobId,
+            String callingActivity) {
+        mService = service;
+        mResolver = service.getContentResolver();
+        mNotificationManager =
+                (NotificationManager)mService.getSystemService(Context.NOTIFICATION_SERVICE);
+        mExportRequest = exportRequest;
+        mJobId = jobId;
+        mCallingActivity = callingActivity;
+    }
+
+    @Override
+    public final int getType() {
+        return VCardService.TYPE_EXPORT;
+    }
+
+    @Override
+    public void run() {
+        // ExecutorService ignores RuntimeException, so we need to show it here.
+        try {
+            runInternal();
+
+            if (isCancelled()) {
+                doCancelNotification();
+            }
+        } catch (OutOfMemoryError e) {
+            Log.e(LOG_TAG, "OutOfMemoryError thrown during import", e);
+            throw e;
+        } catch (RuntimeException e) {
+            Log.e(LOG_TAG, "RuntimeException thrown during export", e);
+            throw e;
+        } finally {
+            synchronized (this) {
+                mDone = true;
+            }
+        }
+    }
+
+    private void runInternal() {
+        if (DEBUG) Log.d(LOG_TAG, String.format("vCard export (id: %d) has started.", mJobId));
+        final ExportRequest request = mExportRequest;
+        VCardComposer composer = null;
+        Writer writer = null;
+        boolean successful = false;
+        try {
+            if (isCancelled()) {
+                Log.i(LOG_TAG, "Export request is cancelled before handling the request");
+                return;
+            }
+            final Uri uri = request.destUri;
+            final OutputStream outputStream;
+            try {
+                outputStream = mResolver.openOutputStream(uri);
+            } catch (FileNotFoundException e) {
+                Log.w(LOG_TAG, "FileNotFoundException thrown", e);
+                // Need concise title.
+
+                final String errorReason =
+                    mService.getString(R.string.fail_reason_could_not_open_file,
+                            uri, e.getMessage());
+                doFinishNotification(errorReason, null);
+                return;
+            }
+
+            final String exportType = request.exportType;
+            final int vcardType;
+            if (TextUtils.isEmpty(exportType)) {
+                vcardType = VCardConfig.getVCardTypeFromString(
+                        mService.getString(R.string.config_export_vcard_type));
+            } else {
+                vcardType = VCardConfig.getVCardTypeFromString(exportType);
+            }
+
+            composer = new VCardComposer(mService, vcardType, true);
+
+            // for test
+            // int vcardType = (VCardConfig.VCARD_TYPE_V21_GENERIC |
+            //     VCardConfig.FLAG_USE_QP_TO_PRIMARY_PROPERTIES);
+            // composer = new VCardComposer(ExportVCardActivity.this, vcardType, true);
+
+            writer = new BufferedWriter(new OutputStreamWriter(outputStream));
+            final Uri contentUriForRawContactsEntity = RawContactsEntity.CONTENT_URI.buildUpon()
+                    .appendQueryParameter(RawContactsEntity.FOR_EXPORT_ONLY, "1")
+                    .build();
+            // TODO: should provide better selection.
+            if (!composer.init(Contacts.CONTENT_URI, new String[] {Contacts._ID},
+                    null, null,
+                    null, contentUriForRawContactsEntity)) {
+                final String errorReason = composer.getErrorReason();
+                Log.e(LOG_TAG, "initialization of vCard composer failed: " + errorReason);
+                final String translatedErrorReason =
+                        translateComposerError(errorReason);
+                final String title =
+                        mService.getString(R.string.fail_reason_could_not_initialize_exporter,
+                                translatedErrorReason);
+                doFinishNotification(title, null);
+                return;
+            }
+
+            final int total = composer.getCount();
+            if (total == 0) {
+                final String title =
+                        mService.getString(R.string.fail_reason_no_exportable_contact);
+                doFinishNotification(title, null);
+                return;
+            }
+
+            int current = 1;  // 1-origin
+            while (!composer.isAfterLast()) {
+                if (isCancelled()) {
+                    Log.i(LOG_TAG, "Export request is cancelled during composing vCard");
+                    return;
+                }
+                try {
+                    writer.write(composer.createOneEntry());
+                } catch (IOException e) {
+                    final String errorReason = composer.getErrorReason();
+                    Log.e(LOG_TAG, "Failed to read a contact: " + errorReason);
+                    final String translatedErrorReason =
+                            translateComposerError(errorReason);
+                    final String title =
+                            mService.getString(R.string.fail_reason_error_occurred_during_export,
+                                    translatedErrorReason);
+                    doFinishNotification(title, null);
+                    return;
+                }
+
+                // vCard export is quite fast (compared to import), and frequent notifications
+                // bother notification bar too much.
+                if (current % 100 == 1) {
+                    doProgressNotification(uri, total, current);
+                }
+                current++;
+            }
+            Log.i(LOG_TAG, "Successfully finished exporting vCard " + request.destUri);
+
+            if (DEBUG) {
+                Log.d(LOG_TAG, "Ask MediaScanner to scan the file: " + request.destUri.getPath());
+            }
+            mService.updateMediaScanner(request.destUri.getPath());
+
+            successful = true;
+            final String filename = uri.getLastPathSegment();
+            final String title = mService.getString(R.string.exporting_vcard_finished_title,
+                    filename);
+            doFinishNotification(title, null);
+        } finally {
+            if (composer != null) {
+                composer.terminate();
+            }
+            if (writer != null) {
+                try {
+                    writer.close();
+                } catch (IOException e) {
+                    Log.w(LOG_TAG, "IOException is thrown during close(). Ignored. " + e);
+                }
+            }
+            mService.handleFinishExportNotification(mJobId, successful);
+        }
+    }
+
+    private String translateComposerError(String errorMessage) {
+        final Resources resources = mService.getResources();
+        if (VCardComposer.FAILURE_REASON_FAILED_TO_GET_DATABASE_INFO.equals(errorMessage)) {
+            return resources.getString(R.string.composer_failed_to_get_database_infomation);
+        } else if (VCardComposer.FAILURE_REASON_NO_ENTRY.equals(errorMessage)) {
+            return resources.getString(R.string.composer_has_no_exportable_contact);
+        } else if (VCardComposer.FAILURE_REASON_NOT_INITIALIZED.equals(errorMessage)) {
+            return resources.getString(R.string.composer_not_initialized);
+        } else {
+            return errorMessage;
+        }
+    }
+
+    private void doProgressNotification(Uri uri, int totalCount, int currentCount) {
+        final String displayName = uri.getLastPathSegment();
+        final String description =
+                mService.getString(R.string.exporting_contact_list_message, displayName);
+        final String tickerText =
+                mService.getString(R.string.exporting_contact_list_title);
+        final Notification notification =
+                NotificationImportExportListener.constructProgressNotification(mService,
+                        VCardService.TYPE_EXPORT, description, tickerText, mJobId, displayName,
+                        totalCount, currentCount);
+        mNotificationManager.notify(NotificationImportExportListener.DEFAULT_NOTIFICATION_TAG,
+                mJobId, notification);
+    }
+
+    private void doCancelNotification() {
+        if (DEBUG) Log.d(LOG_TAG, "send cancel notification");
+        final String description = mService.getString(R.string.exporting_vcard_canceled_title,
+                mExportRequest.destUri.getLastPathSegment());
+        final Notification notification =
+                NotificationImportExportListener.constructCancelNotification(mService, description);
+        mNotificationManager.notify(NotificationImportExportListener.DEFAULT_NOTIFICATION_TAG,
+                mJobId, notification);
+    }
+
+    private void doFinishNotification(final String title, final String description) {
+        if (DEBUG) Log.d(LOG_TAG, "send finish notification: " + title + ", " + description);
+        final Intent intent = new Intent();
+        intent.setClassName(mService, mCallingActivity);
+        final Notification notification =
+                NotificationImportExportListener.constructFinishNotification(mService, title,
+                        description, intent);
+        mNotificationManager.notify(NotificationImportExportListener.DEFAULT_NOTIFICATION_TAG,
+                mJobId, notification);
+    }
+
+    @Override
+    public synchronized boolean cancel(boolean mayInterruptIfRunning) {
+        if (DEBUG) Log.d(LOG_TAG, "received cancel request");
+        if (mDone || mCanceled) {
+            return false;
+        }
+        mCanceled = true;
+        return true;
+    }
+
+    @Override
+    public synchronized boolean isCancelled() {
+        return mCanceled;
+    }
+
+    @Override
+    public synchronized boolean isDone() {
+        return mDone;
+    }
+
+    public ExportRequest getRequest() {
+        return mExportRequest;
+    }
+}
diff --git a/src/com/android/contacts/common/vcard/ExportRequest.java b/src/com/android/contacts/common/vcard/ExportRequest.java
new file mode 100644
index 00000000..e05a32c5
--- /dev/null
+++ b/src/com/android/contacts/common/vcard/ExportRequest.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.contacts.common.vcard;
+
+import android.net.Uri;
+
+public class ExportRequest {
+    public final Uri destUri;
+    /**
+     * Can be null.
+     */
+    public final String exportType;
+
+    public ExportRequest(Uri destUri) {
+        this(destUri, null);
+    }
+
+    public ExportRequest(Uri destUri, String exportType) {
+        this.destUri = destUri;
+        this.exportType = exportType;
+    }
+}
diff --git a/src/com/android/contacts/common/vcard/ExportVCardActivity.java b/src/com/android/contacts/common/vcard/ExportVCardActivity.java
new file mode 100644
index 00000000..3d6f6022
--- /dev/null
+++ b/src/com/android/contacts/common/vcard/ExportVCardActivity.java
@@ -0,0 +1,302 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.contacts.common.vcard;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.ServiceConnection;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.Environment;
+import android.os.Handler;
+import android.os.IBinder;
+import android.os.Message;
+import android.os.Messenger;
+import android.text.TextUtils;
+import android.util.Log;
+
+import com.android.contacts.common.R;
+
+import java.io.File;
+
+/**
+ * Shows a dialog confirming the export and asks actual vCard export to {@link VCardService}
+ *
+ * This Activity first connects to VCardService and ask an available file name and shows it to
+ * a user. After the user's confirmation, it send export request with the file name, assuming the
+ * file name is not reserved yet.
+ */
+public class ExportVCardActivity extends Activity implements ServiceConnection,
+        DialogInterface.OnClickListener, DialogInterface.OnCancelListener {
+    private static final String LOG_TAG = "VCardExport";
+    private static final boolean DEBUG = VCardService.DEBUG;
+
+    /**
+     * Handler used when some Message has come from {@link VCardService}.
+     */
+    private class IncomingHandler extends Handler {
+        @Override
+        public void handleMessage(Message msg) {
+            if (DEBUG) Log.d(LOG_TAG, "IncomingHandler received message.");
+
+            if (msg.arg1 != 0) {
+                Log.i(LOG_TAG, "Message returned from vCard server contains error code.");
+                if (msg.obj != null) {
+                    mErrorReason = (String)msg.obj;
+                }
+                showDialog(msg.arg1);
+                return;
+            }
+
+            switch (msg.what) {
+            case VCardService.MSG_SET_AVAILABLE_EXPORT_DESTINATION:
+                if (msg.obj == null) {
+                    Log.w(LOG_TAG, "Message returned from vCard server doesn't contain valid path");
+                    mErrorReason = getString(R.string.fail_reason_unknown);
+                    showDialog(R.id.dialog_fail_to_export_with_reason);
+                } else {
+                    mTargetFileName = (String)msg.obj;
+                    if (TextUtils.isEmpty(mTargetFileName)) {
+                        Log.w(LOG_TAG, "Destination file name coming from vCard service is empty.");
+                        mErrorReason = getString(R.string.fail_reason_unknown);
+                        showDialog(R.id.dialog_fail_to_export_with_reason);
+                    } else {
+                        if (DEBUG) {
+                            Log.d(LOG_TAG,
+                                    String.format("Target file name is set (%s). " +
+                                            "Show confirmation dialog", mTargetFileName));
+                        }
+                        showDialog(R.id.dialog_export_confirmation);
+                    }
+                }
+                break;
+            default:
+                Log.w(LOG_TAG, "Unknown message type: " + msg.what);
+                super.handleMessage(msg);
+            }
+        }
+    }
+
+    /**
+     * True when this Activity is connected to {@link VCardService}.
+     *
+     * Should be touched inside synchronized block.
+     */
+    private boolean mConnected;
+
+    /**
+     * True when users need to do something and this Activity should not disconnect from
+     * VCardService. False when all necessary procedures are done (including sending export request)
+     * or there's some error occured.
+     */
+    private volatile boolean mProcessOngoing = true;
+
+    private VCardService mService;
+    private final Messenger mIncomingMessenger = new Messenger(new IncomingHandler());
+
+    // Used temporarily when asking users to confirm the file name
+    private String mTargetFileName;
+
+    // String for storing error reason temporarily.
+    private String mErrorReason;
+
+    private class ExportConfirmationListener implements DialogInterface.OnClickListener {
+        private final Uri mDestinationUri;
+
+        public ExportConfirmationListener(String path) {
+            this(Uri.parse("file://" + path));
+        }
+
+        public ExportConfirmationListener(Uri uri) {
+            mDestinationUri = uri;
+        }
+
+        public void onClick(DialogInterface dialog, int which) {
+            if (which == DialogInterface.BUTTON_POSITIVE) {
+                if (DEBUG) {
+                    Log.d(LOG_TAG,
+                            String.format("Try sending export request (uri: %s)", mDestinationUri));
+                }
+                final ExportRequest request = new ExportRequest(mDestinationUri);
+                // The connection object will call finish().
+                mService.handleExportRequest(request, new NotificationImportExportListener(
+                        ExportVCardActivity.this));
+            }
+            unbindAndFinish();
+        }
+    }
+
+    @Override
+    protected void onCreate(Bundle bundle) {
+        super.onCreate(bundle);
+
+        // Check directory is available.
+        if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
+            Log.w(LOG_TAG, "External storage is in state " + Environment.getExternalStorageState() +
+                    ". Cancelling export");
+            showDialog(R.id.dialog_sdcard_not_found);
+            return;
+        }
+
+        final File targetDirectory = Environment.getExternalStorageDirectory();
+        if (!(targetDirectory.exists() &&
+                targetDirectory.isDirectory() &&
+                targetDirectory.canRead()) &&
+                !targetDirectory.mkdirs()) {
+            showDialog(R.id.dialog_sdcard_not_found);
+            return;
+        }
+
+        final String callingActivity = getIntent().getExtras()
+                .getString(VCardCommonArguments.ARG_CALLING_ACTIVITY);
+        Intent intent = new Intent(this, VCardService.class);
+        intent.putExtra(VCardCommonArguments.ARG_CALLING_ACTIVITY, callingActivity);
+
+        if (startService(intent) == null) {
+            Log.e(LOG_TAG, "Failed to start vCard service");
+            mErrorReason = getString(R.string.fail_reason_unknown);
+            showDialog(R.id.dialog_fail_to_export_with_reason);
+            return;
+        }
+
+        if (!bindService(intent, this, Context.BIND_AUTO_CREATE)) {
+            Log.e(LOG_TAG, "Failed to connect to vCard service.");
+            mErrorReason = getString(R.string.fail_reason_unknown);
+            showDialog(R.id.dialog_fail_to_export_with_reason);
+        }
+        // Continued to onServiceConnected()
+    }
+
+    @Override
+    public synchronized void onServiceConnected(ComponentName name, IBinder binder) {
+        if (DEBUG) Log.d(LOG_TAG, "connected to service, requesting a destination file name");
+        mConnected = true;
+        mService = ((VCardService.MyBinder) binder).getService();
+        mService.handleRequestAvailableExportDestination(mIncomingMessenger);
+        // Wait until MSG_SET_AVAILABLE_EXPORT_DESTINATION message is available.
+    }
+
+    // Use synchronized since we don't want to call unbindAndFinish() just after this call.
+    @Override
+    public synchronized void onServiceDisconnected(ComponentName name) {
+        if (DEBUG) Log.d(LOG_TAG, "onServiceDisconnected()");
+        mService = null;
+        mConnected = false;
+        if (mProcessOngoing) {
+            // Unexpected disconnect event.
+            Log.w(LOG_TAG, "Disconnected from service during the process ongoing.");
+            mErrorReason = getString(R.string.fail_reason_unknown);
+            showDialog(R.id.dialog_fail_to_export_with_reason);
+        }
+    }
+
+    @Override
+    protected Dialog onCreateDialog(int id, Bundle bundle) {
+        switch (id) {
+            case R.id.dialog_export_confirmation: {
+                return new AlertDialog.Builder(this)
+                        .setTitle(R.string.confirm_export_title)
+                        .setMessage(getString(R.string.confirm_export_message, mTargetFileName))
+                        .setPositiveButton(android.R.string.ok,
+                                new ExportConfirmationListener(mTargetFileName))
+                        .setNegativeButton(android.R.string.cancel, this)
+                        .setOnCancelListener(this)
+                        .create();
+            }
+            case R.string.fail_reason_too_many_vcard: {
+                mProcessOngoing = false;
+                return new AlertDialog.Builder(this)
+                        .setTitle(R.string.exporting_contact_failed_title)
+                        .setMessage(getString(R.string.exporting_contact_failed_message,
+                                getString(R.string.fail_reason_too_many_vcard)))
+                        .setPositiveButton(android.R.string.ok, this)
+                        .create();
+            }
+            case R.id.dialog_fail_to_export_with_reason: {
+                mProcessOngoing = false;
+                return new AlertDialog.Builder(this)
+                        .setTitle(R.string.exporting_contact_failed_title)
+                        .setMessage(getString(R.string.exporting_contact_failed_message,
+                                mErrorReason != null ? mErrorReason :
+                                        getString(R.string.fail_reason_unknown)))
+                        .setPositiveButton(android.R.string.ok, this)
+                        .setOnCancelListener(this)
+                        .create();
+            }
+            case R.id.dialog_sdcard_not_found: {
+                mProcessOngoing = false;
+                return new AlertDialog.Builder(this)
+                        .setIconAttribute(android.R.attr.alertDialogIcon)
+                        .setMessage(R.string.no_sdcard_message)
+                        .setPositiveButton(android.R.string.ok, this).create();
+            }
+        }
+        return super.onCreateDialog(id, bundle);
+    }
+
+    @Override
+    protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
+        if (id == R.id.dialog_fail_to_export_with_reason) {
+            ((AlertDialog)dialog).setMessage(mErrorReason);
+        } else if (id == R.id.dialog_export_confirmation) {
+            ((AlertDialog)dialog).setMessage(
+                    getString(R.string.confirm_export_message, mTargetFileName));
+        } else {
+            super.onPrepareDialog(id, dialog, args);
+        }
+    }
+
+    @Override
+    protected void onStop() {
+        super.onStop();
+
+        if (!isFinishing()) {
+            unbindAndFinish();
+        }
+    }
+
+    @Override
+    public void onClick(DialogInterface dialog, int which) {
+        if (DEBUG) Log.d(LOG_TAG, "ExportVCardActivity#onClick() is called");
+        unbindAndFinish();
+    }
+
+    @Override
+    public void onCancel(DialogInterface dialog) {
+        if (DEBUG) Log.d(LOG_TAG, "ExportVCardActivity#onCancel() is called");
+        mProcessOngoing = false;
+        unbindAndFinish();
+    }
+
+    @Override
+    public void unbindService(ServiceConnection conn) {
+        mProcessOngoing = false;
+        super.unbindService(conn);
+    }
+
+    private synchronized void unbindAndFinish() {
+        if (mConnected) {
+            unbindService(this);
+            mConnected = false;
+        }
+        finish();
+    }
+}
diff --git a/src/com/android/contacts/common/vcard/ImportProcessor.java b/src/com/android/contacts/common/vcard/ImportProcessor.java
new file mode 100644
index 00000000..37128755
--- /dev/null
+++ b/src/com/android/contacts/common/vcard/ImportProcessor.java
@@ -0,0 +1,305 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.contacts.common.vcard;
+
+import android.accounts.Account;
+import android.content.ContentResolver;
+import android.net.Uri;
+import android.util.Log;
+
+import com.android.vcard.VCardEntry;
+import com.android.vcard.VCardEntryCommitter;
+import com.android.vcard.VCardEntryConstructor;
+import com.android.vcard.VCardEntryHandler;
+import com.android.vcard.VCardInterpreter;
+import com.android.vcard.VCardParser;
+import com.android.vcard.VCardParser_V21;
+import com.android.vcard.VCardParser_V30;
+import com.android.vcard.exception.VCardException;
+import com.android.vcard.exception.VCardNestedException;
+import com.android.vcard.exception.VCardNotSupportedException;
+import com.android.vcard.exception.VCardVersionException;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Class for processing one import request from a user. Dropped after importing requested Uri(s).
+ * {@link VCardService} will create another object when there is another import request.
+ */
+public class ImportProcessor extends ProcessorBase implements VCardEntryHandler {
+    private static final String LOG_TAG = "VCardImport";
+    private static final boolean DEBUG = VCardService.DEBUG;
+
+    private final VCardService mService;
+    private final ContentResolver mResolver;
+    private final ImportRequest mImportRequest;
+    private final int mJobId;
+    private final VCardImportExportListener mListener;
+
+    // TODO: remove and show appropriate message instead.
+    private final List<Uri> mFailedUris = new ArrayList<Uri>();
+
+    private VCardParser mVCardParser;
+
+    private volatile boolean mCanceled;
+    private volatile boolean mDone;
+
+    private int mCurrentCount = 0;
+    private int mTotalCount = 0;
+
+    public ImportProcessor(final VCardService service, final VCardImportExportListener listener,
+            final ImportRequest request, final int jobId) {
+        mService = service;
+        mResolver = mService.getContentResolver();
+        mListener = listener;
+
+        mImportRequest = request;
+        mJobId = jobId;
+    }
+
+    @Override
+    public void onStart() {
+        // do nothing
+    }
+
+    @Override
+    public void onEnd() {
+        // do nothing
+    }
+
+    @Override
+    public void onEntryCreated(VCardEntry entry) {
+        mCurrentCount++;
+        if (mListener != null) {
+            mListener.onImportParsed(mImportRequest, mJobId, entry, mCurrentCount, mTotalCount);
+        }
+    }
+
+    @Override
+    public final int getType() {
+        return VCardService.TYPE_IMPORT;
+    }
+
+    @Override
+    public void run() {
+        // ExecutorService ignores RuntimeException, so we need to show it here.
+        try {
+            runInternal();
+
+            if (isCancelled() && mListener != null) {
+                mListener.onImportCanceled(mImportRequest, mJobId);
+            }
+        } catch (OutOfMemoryError e) {
+            Log.e(LOG_TAG, "OutOfMemoryError thrown during import", e);
+            throw e;
+        } catch (RuntimeException e) {
+            Log.e(LOG_TAG, "RuntimeException thrown during import", e);
+            throw e;
+        } finally {
+            synchronized (this) {
+                mDone = true;
+            }
+        }
+    }
+
+    private void runInternal() {
+        Log.i(LOG_TAG, String.format("vCard import (id: %d) has started.", mJobId));
+        final ImportRequest request = mImportRequest;
+        if (isCancelled()) {
+            Log.i(LOG_TAG, "Canceled before actually handling parameter (" + request.uri + ")");
+            return;
+        }
+        final int[] possibleVCardVersions;
+        if (request.vcardVersion == ImportVCardActivity.VCARD_VERSION_AUTO_DETECT) {
+            /**
+             * Note: this code assumes that a given Uri is able to be opened more than once,
+             * which may not be true in certain conditions.
+             */
+            possibleVCardVersions = new int[] {
+                    ImportVCardActivity.VCARD_VERSION_V21,
+                    ImportVCardActivity.VCARD_VERSION_V30
+            };
+        } else {
+            possibleVCardVersions = new int[] {
+                    request.vcardVersion
+            };
+        }
+
+        final Uri uri = request.uri;
+        final Account account = request.account;
+        final int estimatedVCardType = request.estimatedVCardType;
+        final String estimatedCharset = request.estimatedCharset;
+        final int entryCount = request.entryCount;
+        mTotalCount += entryCount;
+
+        final VCardEntryConstructor constructor =
+                new VCardEntryConstructor(estimatedVCardType, account, estimatedCharset);
+        final VCardEntryCommitter committer = new VCardEntryCommitter(mResolver);
+        constructor.addEntryHandler(committer);
+        constructor.addEntryHandler(this);
+
+        InputStream is = null;
+        boolean successful = false;
+        try {
+            if (uri != null) {
+                Log.i(LOG_TAG, "start importing one vCard (Uri: " + uri + ")");
+                is = mResolver.openInputStream(uri);
+            } else if (request.data != null){
+                Log.i(LOG_TAG, "start importing one vCard (byte[])");
+                is = new ByteArrayInputStream(request.data);
+            }
+
+            if (is != null) {
+                successful = readOneVCard(is, estimatedVCardType, estimatedCharset, constructor,
+                        possibleVCardVersions);
+            }
+        } catch (IOException e) {
+            successful = false;
+        } finally {
+            if (is != null) {
+                try {
+                    is.close();
+                } catch (Exception e) {
+                    // ignore
+                }
+            }
+        }
+
+        mService.handleFinishImportNotification(mJobId, successful);
+
+        if (successful) {
+            // TODO: successful becomes true even when cancelled. Should return more appropriate
+            // value
+            if (isCancelled()) {
+                Log.i(LOG_TAG, "vCard import has been canceled (uri: " + uri + ")");
+                // Cancel notification will be done outside this method.
+            } else {
+                Log.i(LOG_TAG, "Successfully finished importing one vCard file: " + uri);
+                List<Uri> uris = committer.getCreatedUris();
+                if (mListener != null) {
+                    if (uris != null && uris.size() > 0) {
+                        // TODO: construct intent showing a list of imported contact list.
+                        mListener.onImportFinished(mImportRequest, mJobId, uris.get(0));
+                    } else {
+                        // Not critical, but suspicious.
+                        Log.w(LOG_TAG,
+                                "Created Uris is null or 0 length " +
+                                "though the creation itself is successful.");
+                        mListener.onImportFinished(mImportRequest, mJobId, null);
+                    }
+                }
+            }
+        } else {
+            Log.w(LOG_TAG, "Failed to read one vCard file: " + uri);
+            mFailedUris.add(uri);
+        }
+    }
+
+    private boolean readOneVCard(InputStream is, int vcardType, String charset,
+            final VCardInterpreter interpreter,
+            final int[] possibleVCardVersions) {
+        boolean successful = false;
+        final int length = possibleVCardVersions.length;
+        for (int i = 0; i < length; i++) {
+            final int vcardVersion = possibleVCardVersions[i];
+            try {
+                if (i > 0 && (interpreter instanceof VCardEntryConstructor)) {
+                    // Let the object clean up internal temporary objects,
+                    ((VCardEntryConstructor) interpreter).clear();
+                }
+
+                // We need synchronized block here,
+                // since we need to handle mCanceled and mVCardParser at once.
+                // In the worst case, a user may call cancel() just before creating
+                // mVCardParser.
+                synchronized (this) {
+                    mVCardParser = (vcardVersion == ImportVCardActivity.VCARD_VERSION_V30 ?
+                            new VCardParser_V30(vcardType) :
+                                new VCardParser_V21(vcardType));
+                    if (isCancelled()) {
+                        Log.i(LOG_TAG, "ImportProcessor already recieves cancel request, so " +
+                                "send cancel request to vCard parser too.");
+                        mVCardParser.cancel();
+                    }
+                }
+                mVCardParser.parse(is, interpreter);
+
+                successful = true;
+                break;
+            } catch (IOException e) {
+                Log.e(LOG_TAG, "IOException was emitted: " + e.getMessage());
+            } catch (VCardNestedException e) {
+                // This exception should not be thrown here. We should instead handle it
+                // in the preprocessing session in ImportVCardActivity, as we don't try
+                // to detect the type of given vCard here.
+                //
+                // TODO: Handle this case appropriately, which should mean we have to have
+                // code trying to auto-detect the type of given vCard twice (both in
+                // ImportVCardActivity and ImportVCardService).
+                Log.e(LOG_TAG, "Nested Exception is found.");
+            } catch (VCardNotSupportedException e) {
+                Log.e(LOG_TAG, e.toString());
+            } catch (VCardVersionException e) {
+                if (i == length - 1) {
+                    Log.e(LOG_TAG, "Appropriate version for this vCard is not found.");
+                } else {
+                    // We'll try the other (v30) version.
+                }
+            } catch (VCardException e) {
+                Log.e(LOG_TAG, e.toString());
+            } finally {
+                if (is != null) {
+                    try {
+                        is.close();
+                    } catch (IOException e) {
+                    }
+                }
+            }
+        }
+
+        return successful;
+    }
+
+    @Override
+    public synchronized boolean cancel(boolean mayInterruptIfRunning) {
+        if (DEBUG) Log.d(LOG_TAG, "ImportProcessor received cancel request");
+        if (mDone || mCanceled) {
+            return false;
+        }
+        mCanceled = true;
+        synchronized (this) {
+            if (mVCardParser != null) {
+                mVCardParser.cancel();
+            }
+        }
+        return true;
+    }
+
+    @Override
+    public synchronized boolean isCancelled() {
+        return mCanceled;
+    }
+
+
+    @Override
+    public synchronized boolean isDone() {
+        return mDone;
+    }
+}
diff --git a/src/com/android/contacts/common/vcard/ImportRequest.java b/src/com/android/contacts/common/vcard/ImportRequest.java
new file mode 100644
index 00000000..0fab8f51
--- /dev/null
+++ b/src/com/android/contacts/common/vcard/ImportRequest.java
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.contacts.common.vcard;
+
+import android.accounts.Account;
+import android.net.Uri;
+
+import com.android.vcard.VCardSourceDetector;
+
+/**
+ * Class representing one request for importing vCard (given as a Uri).
+ *
+ * Mainly used when {@link ImportVCardActivity} requests {@link VCardService}
+ * to import some specific Uri.
+ *
+ * Note: This object's accepting only One Uri does NOT mean that
+ * there's only one vCard entry inside the instance, as one Uri often has multiple
+ * vCard entries inside it.
+ */
+public class ImportRequest {
+    /**
+     * Can be null (typically when there's no Account available in the system).
+     */
+    public final Account account;
+
+    /**
+     * Uri to be imported. May have different content than originally given from users, so
+     * when displaying user-friendly information (e.g. "importing xxx.vcf"), use
+     * {@link #displayName} instead.
+     *
+     * If this is null {@link #data} contains the byte stream of the vcard.
+     */
+    public final Uri uri;
+
+    /**
+     * Holds the byte stream of the vcard, if {@link #uri} is null.
+     */
+    public final byte[] data;
+
+    /**
+     * String to be displayed to the user to indicate the source of the VCARD.
+     */
+    public final String displayName;
+
+    /**
+     * Can be {@link VCardSourceDetector#PARSE_TYPE_UNKNOWN}.
+     */
+    public final int estimatedVCardType;
+
+    /**
+     * Can be null, meaning no preferable charset is available.
+     */
+    public final String estimatedCharset;
+
+    /**
+     * Assumes that one Uri contains only one version, while there's a (tiny) possibility
+     * we may have two types in one vCard.
+     *
+     * e.g.
+     * BEGIN:VCARD
+     * VERSION:2.1
+     * ...
+     * END:VCARD
+     * BEGIN:VCARD
+     * VERSION:3.0
+     * ...
+     * END:VCARD
+     *
+     * We've never seen this kind of a file, but we may have to cope with it in the future.
+     */
+    public final int vcardVersion;
+
+    /**
+     * The count of vCard entries in {@link #uri}. A receiver of this object can use it
+     * when showing the progress of import. Thus a receiver must be able to torelate this
+     * variable being invalid because of vCard's limitation.
+     *
+     * vCard does not let us know this count without looking over a whole file content,
+     * which means we have to open and scan over {@link #uri} to know this value, while
+     * it may not be opened more than once (Uri does not require it to be opened multiple times
+     * and may become invalid after its close() request).
+     */
+    public final int entryCount;
+
+    public ImportRequest(Account account,
+            byte[] data, Uri uri, String displayName, int estimatedType, String estimatedCharset,
+            int vcardVersion, int entryCount) {
+        this.account = account;
+        this.data = data;
+        this.uri = uri;
+        this.displayName = displayName;
+        this.estimatedVCardType = estimatedType;
+        this.estimatedCharset = estimatedCharset;
+        this.vcardVersion = vcardVersion;
+        this.entryCount = entryCount;
+    }
+}
diff --git a/src/com/android/contacts/common/vcard/ImportVCardActivity.java b/src/com/android/contacts/common/vcard/ImportVCardActivity.java
new file mode 100644
index 00000000..70c98215
--- /dev/null
+++ b/src/com/android/contacts/common/vcard/ImportVCardActivity.java
@@ -0,0 +1,1032 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.contacts.common.vcard;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.ProgressDialog;
+import android.content.ComponentName;
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnCancelListener;
+import android.content.DialogInterface.OnClickListener;
+import android.content.Intent;
+import android.content.ServiceConnection;
+import android.database.Cursor;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.Environment;
+import android.os.Handler;
+import android.os.IBinder;
+import android.os.PowerManager;
+import android.provider.OpenableColumns;
+import android.text.SpannableStringBuilder;
+import android.text.Spanned;
+import android.text.TextUtils;
+import android.text.style.RelativeSizeSpan;
+import android.util.Log;
+import android.widget.Toast;
+
+import com.android.contacts.common.R;
+import com.android.contacts.common.model.AccountTypeManager;
+import com.android.contacts.common.model.account.AccountWithDataSet;
+import com.android.contacts.common.util.AccountSelectionUtil;
+import com.android.vcard.VCardEntryCounter;
+import com.android.vcard.VCardParser;
+import com.android.vcard.VCardParser_V21;
+import com.android.vcard.VCardParser_V30;
+import com.android.vcard.VCardSourceDetector;
+import com.android.vcard.exception.VCardException;
+import com.android.vcard.exception.VCardNestedException;
+import com.android.vcard.exception.VCardVersionException;
+
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.ByteBuffer;
+import java.nio.channels.Channels;
+import java.nio.channels.ReadableByteChannel;
+import java.nio.channels.WritableByteChannel;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Date;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.Vector;
+
+/**
+ * The class letting users to import vCard. This includes the UI part for letting them select
+ * an Account and posssibly a file if there's no Uri is given from its caller Activity.
+ *
+ * Note that this Activity assumes that the instance is a "one-shot Activity", which will be
+ * finished (with the method {@link Activity#finish()}) after the import and never reuse
+ * any Dialog in the instance. So this code is careless about the management around managed
+ * dialogs stuffs (like how onCreateDialog() is used).
+ */
+public class ImportVCardActivity extends Activity {
+    private static final String LOG_TAG = "VCardImport";
+
+    private static final int SELECT_ACCOUNT = 0;
+
+    /* package */ static final String VCARD_URI_ARRAY = "vcard_uri";
+    /* package */ static final String ESTIMATED_VCARD_TYPE_ARRAY = "estimated_vcard_type";
+    /* package */ static final String ESTIMATED_CHARSET_ARRAY = "estimated_charset";
+    /* package */ static final String VCARD_VERSION_ARRAY = "vcard_version";
+    /* package */ static final String ENTRY_COUNT_ARRAY = "entry_count";
+
+    /* package */ final static int VCARD_VERSION_AUTO_DETECT = 0;
+    /* package */ final static int VCARD_VERSION_V21 = 1;
+    /* package */ final static int VCARD_VERSION_V30 = 2;
+
+    private static final String SECURE_DIRECTORY_NAME = ".android_secure";
+
+    /**
+     * Notification id used when error happened before sending an import request to VCardServer.
+     */
+    private static final int FAILURE_NOTIFICATION_ID = 1;
+
+    final static String CACHED_URIS = "cached_uris";
+
+    private AccountSelectionUtil.AccountSelectedListener mAccountSelectionListener;
+
+    private AccountWithDataSet mAccount;
+
+    private ProgressDialog mProgressDialogForScanVCard;
+    private ProgressDialog mProgressDialogForCachingVCard;
+
+    private List<VCardFile> mAllVCardFileList;
+    private VCardScanThread mVCardScanThread;
+
+    private VCardCacheThread mVCardCacheThread;
+    private ImportRequestConnection mConnection;
+    /* package */ VCardImportExportListener mListener;
+
+    private String mErrorMessage;
+
+    private Handler mHandler = new Handler();
+
+    private static class VCardFile {
+        private final String mName;
+        private final String mCanonicalPath;
+        private final long mLastModified;
+
+        public VCardFile(String name, String canonicalPath, long lastModified) {
+            mName = name;
+            mCanonicalPath = canonicalPath;
+            mLastModified = lastModified;
+        }
+
+        public String getName() {
+            return mName;
+        }
+
+        public String getCanonicalPath() {
+            return mCanonicalPath;
+        }
+
+        public long getLastModified() {
+            return mLastModified;
+        }
+    }
+
+    // Runs on the UI thread.
+    private class DialogDisplayer implements Runnable {
+        private final int mResId;
+        public DialogDisplayer(int resId) {
+            mResId = resId;
+        }
+        public DialogDisplayer(String errorMessage) {
+            mResId = R.id.dialog_error_with_message;
+            mErrorMessage = errorMessage;
+        }
+        @Override
+        public void run() {
+            if (!isFinishing()) {
+                showDialog(mResId);
+            }
+        }
+    }
+
+    private class CancelListener
+        implements DialogInterface.OnClickListener, DialogInterface.OnCancelListener {
+        @Override
+        public void onClick(DialogInterface dialog, int which) {
+            finish();
+        }
+        @Override
+        public void onCancel(DialogInterface dialog) {
+            finish();
+        }
+    }
+
+    private CancelListener mCancelListener = new CancelListener();
+
+    private class ImportRequestConnection implements ServiceConnection {
+        private VCardService mService;
+
+        public void sendImportRequest(final List<ImportRequest> requests) {
+            Log.i(LOG_TAG, "Send an import request");
+            mService.handleImportRequest(requests, mListener);
+        }
+
+        @Override
+        public void onServiceConnected(ComponentName name, IBinder binder) {
+            mService = ((VCardService.MyBinder) binder).getService();
+            Log.i(LOG_TAG,
+                    String.format("Connected to VCardService. Kick a vCard cache thread (uri: %s)",
+                            Arrays.toString(mVCardCacheThread.getSourceUris())));
+            mVCardCacheThread.start();
+        }
+
+        @Override
+        public void onServiceDisconnected(ComponentName name) {
+            Log.i(LOG_TAG, "Disconnected from VCardService");
+        }
+    }
+
+    /**
+     * Caches given vCard files into a local directory, and sends actual import request to
+     * {@link VCardService}.
+     *
+     * We need to cache given files into local storage. One of reasons is that some data (as Uri)
+     * may have special permissions. Callers may allow only this Activity to access that content,
+     * not what this Activity launched (like {@link VCardService}).
+     */
+    private class VCardCacheThread extends Thread
+            implements DialogInterface.OnCancelListener {
+        private boolean mCanceled;
+        private PowerManager.WakeLock mWakeLock;
+        private VCardParser mVCardParser;
+        private final Uri[] mSourceUris;  // Given from a caller.
+        private final byte[] mSource;
+        private final String mDisplayName;
+
+        public VCardCacheThread(final Uri[] sourceUris) {
+            mSourceUris = sourceUris;
+            mSource = null;
+            final Context context = ImportVCardActivity.this;
+            final PowerManager powerManager =
+                    (PowerManager)context.getSystemService(Context.POWER_SERVICE);
+            mWakeLock = powerManager.newWakeLock(
+                    PowerManager.SCREEN_DIM_WAKE_LOCK |
+                    PowerManager.ON_AFTER_RELEASE, LOG_TAG);
+            mDisplayName = null;
+        }
+
+        @Override
+        public void finalize() {
+            if (mWakeLock != null && mWakeLock.isHeld()) {
+                Log.w(LOG_TAG, "WakeLock is being held.");
+                mWakeLock.release();
+            }
+        }
+
+        @Override
+        public void run() {
+            Log.i(LOG_TAG, "vCard cache thread starts running.");
+            if (mConnection == null) {
+                throw new NullPointerException("vCard cache thread must be launched "
+                        + "after a service connection is established");
+            }
+
+            mWakeLock.acquire();
+            try {
+                if (mCanceled == true) {
+                    Log.i(LOG_TAG, "vCard cache operation is canceled.");
+                    return;
+                }
+
+                final Context context = ImportVCardActivity.this;
+                // Uris given from caller applications may not be opened twice: consider when
+                // it is not from local storage (e.g. "file:///...") but from some special
+                // provider (e.g. "content://...").
+                // Thus we have to once copy the content of Uri into local storage, and read
+                // it after it.
+                //
+                // We may be able to read content of each vCard file during copying them
+                // to local storage, but currently vCard code does not allow us to do so.
+                int cache_index = 0;
+                ArrayList<ImportRequest> requests = new ArrayList<ImportRequest>();
+                if (mSource != null) {
+                    try {
+                        requests.add(constructImportRequest(mSource, null, mDisplayName));
+                    } catch (VCardException e) {
+                        Log.e(LOG_TAG, "Maybe the file is in wrong format", e);
+                        showFailureNotification(R.string.fail_reason_not_supported);
+                        return;
+                    }
+                } else {
+                    final ContentResolver resolver =
+                            ImportVCardActivity.this.getContentResolver();
+                    for (Uri sourceUri : mSourceUris) {
+                        String filename = null;
+                        // Note: caches are removed by VCardService.
+                        while (true) {
+                            filename = VCardService.CACHE_FILE_PREFIX + cache_index + ".vcf";
+                            final File file = context.getFileStreamPath(filename);
+                            if (!file.exists()) {
+                                break;
+                            } else {
+                                if (cache_index == Integer.MAX_VALUE) {
+                                    throw new RuntimeException("Exceeded cache limit");
+                                }
+                                cache_index++;
+                            }
+                        }
+                        final Uri localDataUri = copyTo(sourceUri, filename);
+                        if (mCanceled) {
+                            Log.i(LOG_TAG, "vCard cache operation is canceled.");
+                            break;
+                        }
+                        if (localDataUri == null) {
+                            Log.w(LOG_TAG, "destUri is null");
+                            break;
+                        }
+
+                        String displayName = null;
+                        Cursor cursor = null;
+                        // Try to get a display name from the given Uri. If it fails, we just
+                        // pick up the last part of the Uri.
+                        try {
+                            cursor = resolver.query(sourceUri,
+                                    new String[] { OpenableColumns.DISPLAY_NAME },
+                                    null, null, null);
+                            if (cursor != null && cursor.getCount() > 0 && cursor.moveToFirst()) {
+                                if (cursor.getCount() > 1) {
+                                    Log.w(LOG_TAG, "Unexpected multiple rows: "
+                                            + cursor.getCount());
+                                }
+                                int index = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
+                                if (index >= 0) {
+                                    displayName = cursor.getString(index);
+                                }
+                            }
+                        } finally {
+                            if (cursor != null) {
+                                cursor.close();
+                            }
+                        }
+                        if (TextUtils.isEmpty(displayName)){
+                            displayName = sourceUri.getLastPathSegment();
+                        }
+
+                        final ImportRequest request;
+                        try {
+                            request = constructImportRequest(null, localDataUri, displayName);
+                        } catch (VCardException e) {
+                            Log.e(LOG_TAG, "Maybe the file is in wrong format", e);
+                            showFailureNotification(R.string.fail_reason_not_supported);
+                            return;
+                        } catch (IOException e) {
+                            Log.e(LOG_TAG, "Unexpected IOException", e);
+                            showFailureNotification(R.string.fail_reason_io_error);
+                            return;
+                        }
+                        if (mCanceled) {
+                            Log.i(LOG_TAG, "vCard cache operation is canceled.");
+                            return;
+                        }
+                        requests.add(request);
+                    }
+                }
+                if (!requests.isEmpty()) {
+                    mConnection.sendImportRequest(requests);
+                } else {
+                    Log.w(LOG_TAG, "Empty import requests. Ignore it.");
+                }
+            } catch (OutOfMemoryError e) {
+                Log.e(LOG_TAG, "OutOfMemoryError occured during caching vCard");
+                System.gc();
+                runOnUiThread(new DialogDisplayer(
+                        getString(R.string.fail_reason_low_memory_during_import)));
+            } catch (IOException e) {
+                Log.e(LOG_TAG, "IOException during caching vCard", e);
+                runOnUiThread(new DialogDisplayer(
+                        getString(R.string.fail_reason_io_error)));
+            } finally {
+                Log.i(LOG_TAG, "Finished caching vCard.");
+                mWakeLock.release();
+                unbindService(mConnection);
+                mProgressDialogForCachingVCard.dismiss();
+                mProgressDialogForCachingVCard = null;
+                finish();
+            }
+        }
+
+        /**
+         * Copy the content of sourceUri to the destination.
+         */
+        private Uri copyTo(final Uri sourceUri, String filename) throws IOException {
+            Log.i(LOG_TAG, String.format("Copy a Uri to app local storage (%s -> %s)",
+                    sourceUri, filename));
+            final Context context = ImportVCardActivity.this;
+            final ContentResolver resolver = context.getContentResolver();
+            ReadableByteChannel inputChannel = null;
+            WritableByteChannel outputChannel = null;
+            Uri destUri = null;
+            try {
+                inputChannel = Channels.newChannel(resolver.openInputStream(sourceUri));
+                destUri = Uri.parse(context.getFileStreamPath(filename).toURI().toString());
+                outputChannel = context.openFileOutput(filename, Context.MODE_PRIVATE).getChannel();
+                final ByteBuffer buffer = ByteBuffer.allocateDirect(8192);
+                while (inputChannel.read(buffer) != -1) {
+                    if (mCanceled) {
+                        Log.d(LOG_TAG, "Canceled during caching " + sourceUri);
+                        return null;
+                    }
+                    buffer.flip();
+                    outputChannel.write(buffer);
+                    buffer.compact();
+                }
+                buffer.flip();
+                while (buffer.hasRemaining()) {
+                    outputChannel.write(buffer);
+                }
+            } finally {
+                if (inputChannel != null) {
+                    try {
+                        inputChannel.close();
+                    } catch (IOException e) {
+                        Log.w(LOG_TAG, "Failed to close inputChannel.");
+                    }
+                }
+                if (outputChannel != null) {
+                    try {
+                        outputChannel.close();
+                    } catch(IOException e) {
+                        Log.w(LOG_TAG, "Failed to close outputChannel");
+                    }
+                }
+            }
+            return destUri;
+        }
+
+        /**
+         * Reads localDataUri (possibly multiple times) and constructs {@link ImportRequest} from
+         * its content.
+         *
+         * @arg localDataUri Uri actually used for the import. Should be stored in
+         * app local storage, as we cannot guarantee other types of Uris can be read
+         * multiple times. This variable populates {@link ImportRequest#uri}.
+         * @arg displayName Used for displaying information to the user. This variable populates
+         * {@link ImportRequest#displayName}.
+         */
+        private ImportRequest constructImportRequest(final byte[] data,
+                final Uri localDataUri, final String displayName)
+                throws IOException, VCardException {
+            final ContentResolver resolver = ImportVCardActivity.this.getContentResolver();
+            VCardEntryCounter counter = null;
+            VCardSourceDetector detector = null;
+            int vcardVersion = VCARD_VERSION_V21;
+            try {
+                boolean shouldUseV30 = false;
+                InputStream is;
+                if (data != null) {
+                    is = new ByteArrayInputStream(data);
+                } else {
+                    is = resolver.openInputStream(localDataUri);
+                }
+                mVCardParser = new VCardParser_V21();
+                try {
+                    counter = new VCardEntryCounter();
+                    detector = new VCardSourceDetector();
+                    mVCardParser.addInterpreter(counter);
+                    mVCardParser.addInterpreter(detector);
+                    mVCardParser.parse(is);
+                } catch (VCardVersionException e1) {
+                    try {
+                        is.close();
+                    } catch (IOException e) {
+                    }
+
+                    shouldUseV30 = true;
+                    if (data != null) {
+                        is = new ByteArrayInputStream(data);
+                    } else {
+                        is = resolver.openInputStream(localDataUri);
+                    }
+                    mVCardParser = new VCardParser_V30();
+                    try {
+                        counter = new VCardEntryCounter();
+                        detector = new VCardSourceDetector();
+                        mVCardParser.addInterpreter(counter);
+                        mVCardParser.addInterpreter(detector);
+                        mVCardParser.parse(is);
+                    } catch (VCardVersionException e2) {
+                        throw new VCardException("vCard with unspported version.");
+                    }
+                } finally {
+                    if (is != null) {
+                        try {
+                            is.close();
+                        } catch (IOException e) {
+                        }
+                    }
+                }
+
+                vcardVersion = shouldUseV30 ? VCARD_VERSION_V30 : VCARD_VERSION_V21;
+            } catch (VCardNestedException e) {
+                Log.w(LOG_TAG, "Nested Exception is found (it may be false-positive).");
+                // Go through without throwing the Exception, as we may be able to detect the
+                // version before it
+            }
+            return new ImportRequest(mAccount,
+                    data, localDataUri, displayName,
+                    detector.getEstimatedType(),
+                    detector.getEstimatedCharset(),
+                    vcardVersion, counter.getCount());
+        }
+
+        public Uri[] getSourceUris() {
+            return mSourceUris;
+        }
+
+        public void cancel() {
+            mCanceled = true;
+            if (mVCardParser != null) {
+                mVCardParser.cancel();
+            }
+        }
+
+        @Override
+        public void onCancel(DialogInterface dialog) {
+            Log.i(LOG_TAG, "Cancel request has come. Abort caching vCard.");
+            cancel();
+        }
+    }
+
+    private class ImportTypeSelectedListener implements
+            DialogInterface.OnClickListener {
+        public static final int IMPORT_ONE = 0;
+        public static final int IMPORT_MULTIPLE = 1;
+        public static final int IMPORT_ALL = 2;
+        public static final int IMPORT_TYPE_SIZE = 3;
+
+        private int mCurrentIndex;
+
+        public void onClick(DialogInterface dialog, int which) {
+            if (which == DialogInterface.BUTTON_POSITIVE) {
+                switch (mCurrentIndex) {
+                case IMPORT_ALL:
+                    importVCardFromSDCard(mAllVCardFileList);
+                    break;
+                case IMPORT_MULTIPLE:
+                    showDialog(R.id.dialog_select_multiple_vcard);
+                    break;
+                default:
+                    showDialog(R.id.dialog_select_one_vcard);
+                    break;
+                }
+            } else if (which == DialogInterface.BUTTON_NEGATIVE) {
+                finish();
+            } else {
+                mCurrentIndex = which;
+            }
+        }
+    }
+
+    private class VCardSelectedListener implements
+            DialogInterface.OnClickListener, DialogInterface.OnMultiChoiceClickListener {
+        private int mCurrentIndex;
+        private Set<Integer> mSelectedIndexSet;
+
+        public VCardSelectedListener(boolean multipleSelect) {
+            mCurrentIndex = 0;
+            if (multipleSelect) {
+                mSelectedIndexSet = new HashSet<Integer>();
+            }
+        }
+
+        public void onClick(DialogInterface dialog, int which) {
+            if (which == DialogInterface.BUTTON_POSITIVE) {
+                if (mSelectedIndexSet != null) {
+                    List<VCardFile> selectedVCardFileList = new ArrayList<VCardFile>();
+                    final int size = mAllVCardFileList.size();
+                    // We'd like to sort the files by its index, so we do not use Set iterator.
+                    for (int i = 0; i < size; i++) {
+                        if (mSelectedIndexSet.contains(i)) {
+                            selectedVCardFileList.add(mAllVCardFileList.get(i));
+                        }
+                    }
+                    importVCardFromSDCard(selectedVCardFileList);
+                } else {
+                    importVCardFromSDCard(mAllVCardFileList.get(mCurrentIndex));
+                }
+            } else if (which == DialogInterface.BUTTON_NEGATIVE) {
+                finish();
+            } else {
+                // Some file is selected.
+                mCurrentIndex = which;
+                if (mSelectedIndexSet != null) {
+                    if (mSelectedIndexSet.contains(which)) {
+                        mSelectedIndexSet.remove(which);
+                    } else {
+                        mSelectedIndexSet.add(which);
+                    }
+                }
+            }
+        }
+
+        public void onClick(DialogInterface dialog, int which, boolean isChecked) {
+            if (mSelectedIndexSet == null || (mSelectedIndexSet.contains(which) == isChecked)) {
+                Log.e(LOG_TAG, String.format("Inconsist state in index %d (%s)", which,
+                        mAllVCardFileList.get(which).getCanonicalPath()));
+            } else {
+                onClick(dialog, which);
+            }
+        }
+    }
+
+    /**
+     * Thread scanning VCard from SDCard. After scanning, the dialog which lets a user select
+     * a vCard file is shown. After the choice, VCardReadThread starts running.
+     */
+    private class VCardScanThread extends Thread implements OnCancelListener, OnClickListener {
+        private boolean mCanceled;
+        private boolean mGotIOException;
+        private File mRootDirectory;
+
+        // To avoid recursive link.
+        private Set<String> mCheckedPaths;
+        private PowerManager.WakeLock mWakeLock;
+
+        private class CanceledException extends Exception {
+        }
+
+        public VCardScanThread(File sdcardDirectory) {
+            mCanceled = false;
+            mGotIOException = false;
+            mRootDirectory = sdcardDirectory;
+            mCheckedPaths = new HashSet<String>();
+            PowerManager powerManager = (PowerManager)ImportVCardActivity.this.getSystemService(
+                    Context.POWER_SERVICE);
+            mWakeLock = powerManager.newWakeLock(
+                    PowerManager.SCREEN_DIM_WAKE_LOCK |
+                    PowerManager.ON_AFTER_RELEASE, LOG_TAG);
+        }
+
+        @Override
+        public void run() {
+            mAllVCardFileList = new Vector<VCardFile>();
+            try {
+                mWakeLock.acquire();
+                getVCardFileRecursively(mRootDirectory);
+            } catch (CanceledException e) {
+                mCanceled = true;
+            } catch (IOException e) {
+                mGotIOException = true;
+            } finally {
+                mWakeLock.release();
+            }
+
+            if (mCanceled) {
+                mAllVCardFileList = null;
+            }
+
+            mProgressDialogForScanVCard.dismiss();
+            mProgressDialogForScanVCard = null;
+
+            if (mGotIOException) {
+                runOnUiThread(new DialogDisplayer(R.id.dialog_io_exception));
+            } else if (mCanceled) {
+                finish();
+            } else {
+                int size = mAllVCardFileList.size();
+                final Context context = ImportVCardActivity.this;
+                if (size == 0) {
+                    runOnUiThread(new DialogDisplayer(R.id.dialog_vcard_not_found));
+                } else {
+                    startVCardSelectAndImport();
+                }
+            }
+        }
+
+        private void getVCardFileRecursively(File directory)
+                throws CanceledException, IOException {
+            if (mCanceled) {
+                throw new CanceledException();
+            }
+
+            // e.g. secured directory may return null toward listFiles().
+            final File[] files = directory.listFiles();
+            if (files == null) {
+                final String currentDirectoryPath = directory.getCanonicalPath();
+                final String secureDirectoryPath =
+                        mRootDirectory.getCanonicalPath().concat(SECURE_DIRECTORY_NAME);
+                if (!TextUtils.equals(currentDirectoryPath, secureDirectoryPath)) {
+                    Log.w(LOG_TAG, "listFiles() returned null (directory: " + directory + ")");
+                }
+                return;
+            }
+            for (File file : directory.listFiles()) {
+                if (mCanceled) {
+                    throw new CanceledException();
+                }
+                String canonicalPath = file.getCanonicalPath();
+                if (mCheckedPaths.contains(canonicalPath)) {
+                    continue;
+                }
+
+                mCheckedPaths.add(canonicalPath);
+
+                if (file.isDirectory()) {
+                    getVCardFileRecursively(file);
+                } else if (canonicalPath.toLowerCase().endsWith(".vcf") &&
+                        file.canRead()){
+                    String fileName = file.getName();
+                    VCardFile vcardFile = new VCardFile(
+                            fileName, canonicalPath, file.lastModified());
+                    mAllVCardFileList.add(vcardFile);
+                }
+            }
+        }
+
+        public void onCancel(DialogInterface dialog) {
+            mCanceled = true;
+        }
+
+        public void onClick(DialogInterface dialog, int which) {
+            if (which == DialogInterface.BUTTON_NEGATIVE) {
+                mCanceled = true;
+            }
+        }
+    }
+
+    private void startVCardSelectAndImport() {
+        int size = mAllVCardFileList.size();
+        if (getResources().getBoolean(R.bool.config_import_all_vcard_from_sdcard_automatically) ||
+                size == 1) {
+            importVCardFromSDCard(mAllVCardFileList);
+        } else if (getResources().getBoolean(R.bool.config_allow_users_select_all_vcard_import)) {
+            runOnUiThread(new DialogDisplayer(R.id.dialog_select_import_type));
+        } else {
+            runOnUiThread(new DialogDisplayer(R.id.dialog_select_one_vcard));
+        }
+    }
+
+    private void importVCardFromSDCard(final List<VCardFile> selectedVCardFileList) {
+        final int size = selectedVCardFileList.size();
+        String[] uriStrings = new String[size];
+        int i = 0;
+        for (VCardFile vcardFile : selectedVCardFileList) {
+            uriStrings[i] = "file://" + vcardFile.getCanonicalPath();
+            i++;
+        }
+        importVCard(uriStrings);
+    }
+
+    private void importVCardFromSDCard(final VCardFile vcardFile) {
+        importVCard(new Uri[] {Uri.parse("file://" + vcardFile.getCanonicalPath())});
+    }
+
+    private void importVCard(final Uri uri) {
+        importVCard(new Uri[] {uri});
+    }
+
+    private void importVCard(final String[] uriStrings) {
+        final int length = uriStrings.length;
+        final Uri[] uris = new Uri[length];
+        for (int i = 0; i < length; i++) {
+            uris[i] = Uri.parse(uriStrings[i]);
+        }
+        importVCard(uris);
+    }
+
+    private void importVCard(final Uri[] uris) {
+        runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                if (!isFinishing()) {
+                    mVCardCacheThread = new VCardCacheThread(uris);
+                    mListener = new NotificationImportExportListener(ImportVCardActivity.this);
+                    showDialog(R.id.dialog_cache_vcard);
+                }
+            }
+        });
+    }
+
+    private Dialog getSelectImportTypeDialog() {
+        final DialogInterface.OnClickListener listener = new ImportTypeSelectedListener();
+        final AlertDialog.Builder builder = new AlertDialog.Builder(this)
+                .setTitle(R.string.select_vcard_title)
+                .setPositiveButton(android.R.string.ok, listener)
+                .setOnCancelListener(mCancelListener)
+                .setNegativeButton(android.R.string.cancel, mCancelListener);
+
+        final String[] items = new String[ImportTypeSelectedListener.IMPORT_TYPE_SIZE];
+        items[ImportTypeSelectedListener.IMPORT_ONE] =
+                getString(R.string.import_one_vcard_string);
+        items[ImportTypeSelectedListener.IMPORT_MULTIPLE] =
+                getString(R.string.import_multiple_vcard_string);
+        items[ImportTypeSelectedListener.IMPORT_ALL] =
+                getString(R.string.import_all_vcard_string);
+        builder.setSingleChoiceItems(items, ImportTypeSelectedListener.IMPORT_ONE, listener);
+        return builder.create();
+    }
+
+    private Dialog getVCardFileSelectDialog(boolean multipleSelect) {
+        final int size = mAllVCardFileList.size();
+        final VCardSelectedListener listener = new VCardSelectedListener(multipleSelect);
+        final AlertDialog.Builder builder =
+                new AlertDialog.Builder(this)
+                        .setTitle(R.string.select_vcard_title)
+                        .setPositiveButton(android.R.string.ok, listener)
+                        .setOnCancelListener(mCancelListener)
+                        .setNegativeButton(android.R.string.cancel, mCancelListener);
+
+        CharSequence[] items = new CharSequence[size];
+        DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+        for (int i = 0; i < size; i++) {
+            VCardFile vcardFile = mAllVCardFileList.get(i);
+            SpannableStringBuilder stringBuilder = new SpannableStringBuilder();
+            stringBuilder.append(vcardFile.getName());
+            stringBuilder.append('\n');
+            int indexToBeSpanned = stringBuilder.length();
+            // Smaller date text looks better, since each file name becomes easier to read.
+            // The value set to RelativeSizeSpan is arbitrary. You can change it to any other
+            // value (but the value bigger than 1.0f would not make nice appearance :)
+            stringBuilder.append(
+                        "(" + dateFormat.format(new Date(vcardFile.getLastModified())) + ")");
+            stringBuilder.setSpan(
+                    new RelativeSizeSpan(0.7f), indexToBeSpanned, stringBuilder.length(),
+                    Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+            items[i] = stringBuilder;
+        }
+        if (multipleSelect) {
+            builder.setMultiChoiceItems(items, (boolean[])null, listener);
+        } else {
+            builder.setSingleChoiceItems(items, 0, listener);
+        }
+        return builder.create();
+    }
+
+    @Override
+    protected void onCreate(Bundle bundle) {
+        super.onCreate(bundle);
+
+        String accountName = null;
+        String accountType = null;
+        String dataSet = null;
+        final Intent intent = getIntent();
+        if (intent != null) {
+            accountName = intent.getStringExtra(SelectAccountActivity.ACCOUNT_NAME);
+            accountType = intent.getStringExtra(SelectAccountActivity.ACCOUNT_TYPE);
+            dataSet = intent.getStringExtra(SelectAccountActivity.DATA_SET);
+        } else {
+            Log.e(LOG_TAG, "intent does not exist");
+        }
+
+        if (!TextUtils.isEmpty(accountName) && !TextUtils.isEmpty(accountType)) {
+            mAccount = new AccountWithDataSet(accountName, accountType, dataSet);
+        } else {
+            final AccountTypeManager accountTypes = AccountTypeManager.getInstance(this);
+            final List<AccountWithDataSet> accountList = accountTypes.getAccounts(true);
+            if (accountList.size() == 0) {
+                mAccount = null;
+            } else if (accountList.size() == 1) {
+                mAccount = accountList.get(0);
+            } else {
+                startActivityForResult(new Intent(this, SelectAccountActivity.class),
+                        SELECT_ACCOUNT);
+                return;
+            }
+        }
+
+        startImport();
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent intent) {
+        if (requestCode == SELECT_ACCOUNT) {
+            if (resultCode == Activity.RESULT_OK) {
+                mAccount = new AccountWithDataSet(
+                        intent.getStringExtra(SelectAccountActivity.ACCOUNT_NAME),
+                        intent.getStringExtra(SelectAccountActivity.ACCOUNT_TYPE),
+                        intent.getStringExtra(SelectAccountActivity.DATA_SET));
+                startImport();
+            } else {
+                if (resultCode != Activity.RESULT_CANCELED) {
+                    Log.w(LOG_TAG, "Result code was not OK nor CANCELED: " + resultCode);
+                }
+                finish();
+            }
+        }
+    }
+
+    private void startImport() {
+        Intent intent = getIntent();
+        // Handle inbound files
+        Uri uri = intent.getData();
+        if (uri != null) {
+            Log.i(LOG_TAG, "Starting vCard import using Uri " + uri);
+            importVCard(uri);
+        } else {
+            Log.i(LOG_TAG, "Start vCard without Uri. The user will select vCard manually.");
+            doScanExternalStorageAndImportVCard();
+        }
+    }
+
+    @Override
+    protected Dialog onCreateDialog(int resId, Bundle bundle) {
+        switch (resId) {
+            case R.string.import_from_sdcard: {
+                if (mAccountSelectionListener == null) {
+                    throw new NullPointerException(
+                            "mAccountSelectionListener must not be null.");
+                }
+                return AccountSelectionUtil.getSelectAccountDialog(this, resId,
+                        mAccountSelectionListener, mCancelListener);
+            }
+            case R.id.dialog_searching_vcard: {
+                if (mProgressDialogForScanVCard == null) {
+                    String message = getString(R.string.searching_vcard_message);
+                    mProgressDialogForScanVCard =
+                        ProgressDialog.show(this, "", message, true, false);
+                    mProgressDialogForScanVCard.setOnCancelListener(mVCardScanThread);
+                    mVCardScanThread.start();
+                }
+                return mProgressDialogForScanVCard;
+            }
+            case R.id.dialog_sdcard_not_found: {
+                AlertDialog.Builder builder = new AlertDialog.Builder(this)
+                    .setIconAttribute(android.R.attr.alertDialogIcon)
+                    .setMessage(R.string.no_sdcard_message)
+                    .setOnCancelListener(mCancelListener)
+                    .setPositiveButton(android.R.string.ok, mCancelListener);
+                return builder.create();
+            }
+            case R.id.dialog_vcard_not_found: {
+                final String message = getString(R.string.import_failure_no_vcard_file);
+                AlertDialog.Builder builder = new AlertDialog.Builder(this)
+                        .setMessage(message)
+                        .setOnCancelListener(mCancelListener)
+                        .setPositiveButton(android.R.string.ok, mCancelListener);
+                return builder.create();
+            }
+            case R.id.dialog_select_import_type: {
+                return getSelectImportTypeDialog();
+            }
+            case R.id.dialog_select_multiple_vcard: {
+                return getVCardFileSelectDialog(true);
+            }
+            case R.id.dialog_select_one_vcard: {
+                return getVCardFileSelectDialog(false);
+            }
+            case R.id.dialog_cache_vcard: {
+                if (mProgressDialogForCachingVCard == null) {
+                    final String title = getString(R.string.caching_vcard_title);
+                    final String message = getString(R.string.caching_vcard_message);
+                    mProgressDialogForCachingVCard = new ProgressDialog(this);
+                    mProgressDialogForCachingVCard.setTitle(title);
+                    mProgressDialogForCachingVCard.setMessage(message);
+                    mProgressDialogForCachingVCard.setProgressStyle(ProgressDialog.STYLE_SPINNER);
+                    mProgressDialogForCachingVCard.setOnCancelListener(mVCardCacheThread);
+                    startVCardService();
+                }
+                return mProgressDialogForCachingVCard;
+            }
+            case R.id.dialog_io_exception: {
+                String message = (getString(R.string.scanning_sdcard_failed_message,
+                        getString(R.string.fail_reason_io_error)));
+                AlertDialog.Builder builder = new AlertDialog.Builder(this)
+                    .setIconAttribute(android.R.attr.alertDialogIcon)
+                    .setMessage(message)
+                    .setOnCancelListener(mCancelListener)
+                    .setPositiveButton(android.R.string.ok, mCancelListener);
+                return builder.create();
+            }
+            case R.id.dialog_error_with_message: {
+                String message = mErrorMessage;
+                if (TextUtils.isEmpty(message)) {
+                    Log.e(LOG_TAG, "Error message is null while it must not.");
+                    message = getString(R.string.fail_reason_unknown);
+                }
+                final AlertDialog.Builder builder = new AlertDialog.Builder(this)
+                    .setTitle(getString(R.string.reading_vcard_failed_title))
+                    .setIconAttribute(android.R.attr.alertDialogIcon)
+                    .setMessage(message)
+                    .setOnCancelListener(mCancelListener)
+                    .setPositiveButton(android.R.string.ok, mCancelListener);
+                return builder.create();
+            }
+        }
+
+        return super.onCreateDialog(resId, bundle);
+    }
+
+    /* package */ void startVCardService() {
+        mConnection = new ImportRequestConnection();
+
+        Log.i(LOG_TAG, "Bind to VCardService.");
+        // We don't want the service finishes itself just after this connection.
+        Intent intent = new Intent(this, VCardService.class);
+        startService(intent);
+        bindService(new Intent(this, VCardService.class),
+                mConnection, Context.BIND_AUTO_CREATE);
+    }
+
+    @Override
+    protected void onRestoreInstanceState(Bundle savedInstanceState) {
+        super.onRestoreInstanceState(savedInstanceState);
+        if (mProgressDialogForCachingVCard != null) {
+            Log.i(LOG_TAG, "Cache thread is still running. Show progress dialog again.");
+            showDialog(R.id.dialog_cache_vcard);
+        }
+    }
+
+    /**
+     * Scans vCard in external storage (typically SDCard) and tries to import it.
+     * - When there's no SDCard available, an error dialog is shown.
+     * - When multiple vCard files are available, asks a user to select one.
+     */
+    private void doScanExternalStorageAndImportVCard() {
+        // TODO: should use getExternalStorageState().
+        final File file = Environment.getExternalStorageDirectory();
+        if (!file.exists() || !file.isDirectory() || !file.canRead()) {
+            showDialog(R.id.dialog_sdcard_not_found);
+        } else {
+            mVCardScanThread = new VCardScanThread(file);
+            showDialog(R.id.dialog_searching_vcard);
+        }
+    }
+
+    /* package */ void showFailureNotification(int reasonId) {
+        final NotificationManager notificationManager =
+                (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
+        final Notification notification =
+                NotificationImportExportListener.constructImportFailureNotification(
+                        ImportVCardActivity.this,
+                        getString(reasonId));
+        notificationManager.notify(NotificationImportExportListener.FAILURE_NOTIFICATION_TAG,
+                FAILURE_NOTIFICATION_ID, notification);
+        mHandler.post(new Runnable() {
+            @Override
+            public void run() {
+                Toast.makeText(ImportVCardActivity.this,
+                        getString(R.string.vcard_import_failed), Toast.LENGTH_LONG).show();
+            }
+        });
+    }
+}
diff --git a/src/com/android/contacts/common/vcard/NfcImportVCardActivity.java b/src/com/android/contacts/common/vcard/NfcImportVCardActivity.java
new file mode 100644
index 00000000..96f224a1
--- /dev/null
+++ b/src/com/android/contacts/common/vcard/NfcImportVCardActivity.java
@@ -0,0 +1,266 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.contacts.common.vcard;
+
+import android.app.Activity;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.ServiceConnection;
+import android.net.Uri;
+import android.nfc.NdefMessage;
+import android.nfc.NdefRecord;
+import android.nfc.NfcAdapter;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.os.IBinder;
+import android.provider.ContactsContract.RawContacts;
+import android.util.Log;
+
+import com.android.contacts.common.R;
+import com.android.contacts.common.model.AccountTypeManager;
+import com.android.contacts.common.model.account.AccountWithDataSet;
+import com.android.vcard.VCardEntry;
+import com.android.vcard.VCardEntryCounter;
+import com.android.vcard.VCardParser;
+import com.android.vcard.VCardParser_V21;
+import com.android.vcard.VCardParser_V30;
+import com.android.vcard.VCardSourceDetector;
+import com.android.vcard.exception.VCardException;
+import com.android.vcard.exception.VCardNestedException;
+import com.android.vcard.exception.VCardVersionException;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+public class NfcImportVCardActivity extends Activity implements ServiceConnection,
+        VCardImportExportListener {
+    private static final String TAG = "NfcImportVCardActivity";
+
+    private static final int SELECT_ACCOUNT = 1;
+
+    private NdefRecord mRecord;
+    private AccountWithDataSet mAccount;
+
+    /* package */ class ImportTask extends AsyncTask<VCardService, Void, ImportRequest> {
+        @Override
+        public ImportRequest doInBackground(VCardService... services) {
+            ImportRequest request = createImportRequest();
+            if (request == null) {
+                return null;
+            }
+
+            ArrayList<ImportRequest> requests = new ArrayList<ImportRequest>();
+            requests.add(request);
+            services[0].handleImportRequest(requests, NfcImportVCardActivity.this);
+            return request;
+        }
+
+        @Override
+        public void onCancelled() {
+            unbindService(NfcImportVCardActivity.this);
+        }
+
+        @Override
+        public void onPostExecute(ImportRequest request) {
+            unbindService(NfcImportVCardActivity.this);
+        }
+    }
+
+    /* package */ ImportRequest createImportRequest() {
+        VCardParser parser;
+        VCardEntryCounter counter = null;
+        VCardSourceDetector detector = null;
+        int vcardVersion = ImportVCardActivity.VCARD_VERSION_V21;
+        try {
+            ByteArrayInputStream is = new ByteArrayInputStream(mRecord.getPayload());
+            is.mark(0);
+            parser = new VCardParser_V21();
+            try {
+                counter = new VCardEntryCounter();
+                detector = new VCardSourceDetector();
+                parser.addInterpreter(counter);
+                parser.addInterpreter(detector);
+                parser.parse(is);
+            } catch (VCardVersionException e1) {
+                is.reset();
+                vcardVersion = ImportVCardActivity.VCARD_VERSION_V30;
+                parser = new VCardParser_V30();
+                try {
+                    counter = new VCardEntryCounter();
+                    detector = new VCardSourceDetector();
+                    parser.addInterpreter(counter);
+                    parser.addInterpreter(detector);
+                    parser.parse(is);
+                } catch (VCardVersionException e2) {
+                    return null;
+                }
+            } finally {
+                try {
+                    if (is != null) is.close();
+                } catch (IOException e) {
+                }
+            }
+        } catch (IOException e) {
+            Log.e(TAG, "Failed reading vcard data", e);
+            return null;
+        } catch (VCardNestedException e) {
+            Log.w(TAG, "Nested Exception is found (it may be false-positive).");
+            // Go through without throwing the Exception, as we may be able to detect the
+            // version before it
+        } catch (VCardException e) {
+            Log.e(TAG, "Error parsing vcard", e);
+            return null;
+        }
+
+        return new ImportRequest(mAccount, mRecord.getPayload(), null,
+                getString(R.string.nfc_vcard_file_name), detector.getEstimatedType(),
+                detector.getEstimatedCharset(), vcardVersion, counter.getCount());
+    }
+
+    @Override
+    public void onServiceConnected(ComponentName name, IBinder binder) {
+        VCardService service = ((VCardService.MyBinder) binder).getService();
+        new ImportTask().execute(service);
+    }
+
+    @Override
+    public void onServiceDisconnected(ComponentName name) {
+        // Do nothing
+    }
+
+    @Override
+    protected void onCreate(Bundle bundle) {
+        super.onCreate(bundle);
+
+        Intent intent = getIntent();
+        if (!NfcAdapter.ACTION_NDEF_DISCOVERED.equals(intent.getAction())) {
+            Log.w(TAG, "Unknowon intent " + intent);
+            finish();
+            return;
+        }
+
+        String type = intent.getType();
+        if (type == null ||
+                (!"text/x-vcard".equals(type) && !"text/vcard".equals(type))) {
+            Log.w(TAG, "Not a vcard");
+            //setStatus(getString(R.string.fail_reason_not_supported));
+            finish();
+            return;
+        }
+        NdefMessage msg = (NdefMessage) intent.getParcelableArrayExtra(
+                NfcAdapter.EXTRA_NDEF_MESSAGES)[0];
+        mRecord = msg.getRecords()[0];
+
+        final AccountTypeManager accountTypes = AccountTypeManager.getInstance(this);
+        final List<AccountWithDataSet> accountList = accountTypes.getAccounts(true);
+        if (accountList.size() == 0) {
+            mAccount = null;
+        } else if (accountList.size() == 1) {
+            mAccount = accountList.get(0);
+        } else {
+            startActivityForResult(new Intent(this, SelectAccountActivity.class), SELECT_ACCOUNT);
+            return;
+        }
+
+        startImport();
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent intent) {
+        if (requestCode == SELECT_ACCOUNT) {
+            if (resultCode == RESULT_OK) {
+                mAccount = new AccountWithDataSet(
+                        intent.getStringExtra(SelectAccountActivity.ACCOUNT_NAME),
+                        intent.getStringExtra(SelectAccountActivity.ACCOUNT_TYPE),
+                        intent.getStringExtra(SelectAccountActivity.DATA_SET));
+                startImport();
+            } else {
+                finish();
+            }
+        }
+    }
+
+    private void startImport() {
+        // We don't want the service finishes itself just after this connection.
+        Intent intent = new Intent(this, VCardService.class);
+        startService(intent);
+        bindService(intent, this, Context.BIND_AUTO_CREATE);
+    }
+
+    @Override
+    public void onImportProcessed(ImportRequest request, int jobId, int sequence) {
+        // do nothing
+    }
+
+    @Override
+    public void onImportParsed(ImportRequest request, int jobId, VCardEntry entry, int currentCount,
+            int totalCount) {
+        // do nothing
+    }
+
+    @Override
+    public void onImportFinished(ImportRequest request, int jobId, Uri uri) {
+        if (isFinishing()) {
+            Log.i(TAG, "Late import -- ignoring");
+            return;
+        }
+
+        if (uri != null) {
+            Uri contactUri = RawContacts.getContactLookupUri(getContentResolver(), uri);
+            Intent intent = new Intent(Intent.ACTION_VIEW, contactUri);
+            startActivity(intent);
+            finish();
+        }
+    }
+
+    @Override
+    public void onImportFailed(ImportRequest request) {
+        if (isFinishing()) {
+            Log.i(TAG, "Late import failure -- ignoring");
+            return;
+        }
+        // TODO: report failure
+    }
+
+    @Override
+    public void onImportCanceled(ImportRequest request, int jobId) {
+        // do nothing
+    }
+
+    @Override
+    public void onExportProcessed(ExportRequest request, int jobId) {
+        // do nothing
+    }
+
+    @Override
+    public void onExportFailed(ExportRequest request) {
+        // do nothing
+    }
+
+    @Override
+    public void onCancelRequest(CancelRequest request, int type) {
+        // do nothing
+    }
+
+    @Override
+    public void onComplete() {
+        // do nothing
+    }
+}
diff --git a/src/com/android/contacts/common/vcard/NotificationImportExportListener.java b/src/com/android/contacts/common/vcard/NotificationImportExportListener.java
new file mode 100644
index 00000000..f873e316
--- /dev/null
+++ b/src/com/android/contacts/common/vcard/NotificationImportExportListener.java
@@ -0,0 +1,289 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *	    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.contacts.common.vcard;
+
+import android.app.Activity;
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.content.ContentUris;
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Handler;
+import android.os.Message;
+import android.provider.ContactsContract.RawContacts;
+import android.widget.Toast;
+
+import com.android.contacts.common.R;
+import com.android.vcard.VCardEntry;
+
+public class NotificationImportExportListener implements VCardImportExportListener,
+        Handler.Callback {
+    /** The tag used by vCard-related notifications. */
+    /* package */ static final String DEFAULT_NOTIFICATION_TAG = "VCardServiceProgress";
+    /**
+     * The tag used by vCard-related failure notifications.
+     * <p>
+     * Use a different tag from {@link #DEFAULT_NOTIFICATION_TAG} so that failures do not get
+     * replaced by other notifications and vice-versa.
+     */
+    /* package */ static final String FAILURE_NOTIFICATION_TAG = "VCardServiceFailure";
+
+    private final NotificationManager mNotificationManager;
+    private final Activity mContext;
+    private final Handler mHandler;
+
+    public NotificationImportExportListener(Activity activity) {
+        mContext = activity;
+        mNotificationManager = (NotificationManager) activity.getSystemService(
+                Context.NOTIFICATION_SERVICE);
+        mHandler = new Handler(this);
+    }
+
+    @Override
+    public boolean handleMessage(Message msg) {
+        String text = (String) msg.obj;
+        Toast.makeText(mContext, text, Toast.LENGTH_LONG).show();
+        return true;
+    }
+
+    @Override
+    public void onImportProcessed(ImportRequest request, int jobId, int sequence) {
+        // Show a notification about the status
+        final String displayName;
+        final String message;
+        if (request.displayName != null) {
+            displayName = request.displayName;
+            message = mContext.getString(R.string.vcard_import_will_start_message, displayName);
+        } else {
+            displayName = mContext.getString(R.string.vcard_unknown_filename);
+            message = mContext.getString(
+                    R.string.vcard_import_will_start_message_with_default_name);
+        }
+
+        // We just want to show notification for the first vCard.
+        if (sequence == 0) {
+            // TODO: Ideally we should detect the current status of import/export and
+            // show "started" when we can import right now and show "will start" when
+            // we cannot.
+            mHandler.obtainMessage(0, message).sendToTarget();
+        }
+
+        final Notification notification = constructProgressNotification(mContext,
+                VCardService.TYPE_IMPORT, message, message, jobId, displayName, -1, 0);
+        mNotificationManager.notify(DEFAULT_NOTIFICATION_TAG, jobId, notification);
+    }
+
+    @Override
+    public void onImportParsed(ImportRequest request, int jobId, VCardEntry entry, int currentCount,
+            int totalCount) {
+        if (entry.isIgnorable()) {
+            return;
+        }
+
+        final String totalCountString = String.valueOf(totalCount);
+        final String tickerText =
+                mContext.getString(R.string.progress_notifier_message,
+                        String.valueOf(currentCount),
+                        totalCountString,
+                        entry.getDisplayName());
+        final String description = mContext.getString(R.string.importing_vcard_description,
+                entry.getDisplayName());
+
+        final Notification notification = constructProgressNotification(
+                mContext.getApplicationContext(), VCardService.TYPE_IMPORT, description, tickerText,
+                jobId, request.displayName, totalCount, currentCount);
+        mNotificationManager.notify(DEFAULT_NOTIFICATION_TAG, jobId, notification);
+    }
+
+    @Override
+    public void onImportFinished(ImportRequest request, int jobId, Uri createdUri) {
+        final String description = mContext.getString(R.string.importing_vcard_finished_title,
+                request.displayName);
+        final Intent intent;
+        if (createdUri != null) {
+            final long rawContactId = ContentUris.parseId(createdUri);
+            final Uri contactUri = RawContacts.getContactLookupUri(
+                    mContext.getContentResolver(), ContentUris.withAppendedId(
+                            RawContacts.CONTENT_URI, rawContactId));
+            intent = new Intent(Intent.ACTION_VIEW, contactUri);
+        } else {
+            intent = null;
+        }
+        final Notification notification =
+                NotificationImportExportListener.constructFinishNotification(mContext,
+                description, null, intent);
+        mNotificationManager.notify(NotificationImportExportListener.DEFAULT_NOTIFICATION_TAG,
+                jobId, notification);
+    }
+
+    @Override
+    public void onImportFailed(ImportRequest request) {
+        // TODO: a little unkind to show Toast in this case, which is shown just a moment.
+        // Ideally we should show some persistent something users can notice more easily.
+        mHandler.obtainMessage(0,
+                mContext.getString(R.string.vcard_import_request_rejected_message)).sendToTarget();
+    }
+
+    @Override
+    public void onImportCanceled(ImportRequest request, int jobId) {
+        final String description = mContext.getString(R.string.importing_vcard_canceled_title,
+                request.displayName);
+        final Notification notification =
+                NotificationImportExportListener.constructCancelNotification(mContext, description);
+        mNotificationManager.notify(NotificationImportExportListener.DEFAULT_NOTIFICATION_TAG,
+                jobId, notification);
+    }
+
+    @Override
+    public void onExportProcessed(ExportRequest request, int jobId) {
+        final String displayName = request.destUri.getLastPathSegment();
+        final String message = mContext.getString(R.string.vcard_export_will_start_message,
+                displayName);
+
+        mHandler.obtainMessage(0, message).sendToTarget();
+        final Notification notification =
+                NotificationImportExportListener.constructProgressNotification(mContext,
+                        VCardService.TYPE_EXPORT, message, message, jobId, displayName, -1, 0);
+        mNotificationManager.notify(DEFAULT_NOTIFICATION_TAG, jobId, notification);
+    }
+
+    @Override
+    public void onExportFailed(ExportRequest request) {
+        mHandler.obtainMessage(0,
+                mContext.getString(R.string.vcard_export_request_rejected_message)).sendToTarget();
+    }
+
+    @Override
+    public void onCancelRequest(CancelRequest request, int type) {
+        final String description = type == VCardService.TYPE_IMPORT ?
+                mContext.getString(R.string.importing_vcard_canceled_title, request.displayName) :
+                mContext.getString(R.string.exporting_vcard_canceled_title, request.displayName);
+        final Notification notification = constructCancelNotification(mContext, description);
+        mNotificationManager.notify(DEFAULT_NOTIFICATION_TAG, request.jobId, notification);
+    }
+
+    /**
+     * Constructs a {@link Notification} showing the current status of import/export.
+     * Users can cancel the process with the Notification.
+     *
+     * @param context
+     * @param type import/export
+     * @param description Content of the Notification.
+     * @param tickerText
+     * @param jobId
+     * @param displayName Name to be shown to the Notification (e.g. "finished importing XXXX").
+     * Typycally a file name.
+     * @param totalCount The number of vCard entries to be imported. Used to show progress bar.
+     * -1 lets the system show the progress bar with "indeterminate" state.
+     * @param currentCount The index of current vCard. Used to show progress bar.
+     */
+    /* package */ static Notification constructProgressNotification(
+            Context context, int type, String description, String tickerText,
+            int jobId, String displayName, int totalCount, int currentCount) {
+        // Note: We cannot use extra values here (like setIntExtra()), as PendingIntent doesn't
+        // preserve them across multiple Notifications. PendingIntent preserves the first extras
+        // (when flag is not set), or update them when PendingIntent#getActivity() is called
+        // (See PendingIntent#FLAG_UPDATE_CURRENT). In either case, we cannot preserve extras as we
+        // expect (for each vCard import/export request).
+        //
+        // We use query parameter in Uri instead.
+        // Scheme and Authority is arbitorary, assuming CancelActivity never refers them.
+        final Intent intent = new Intent(context, CancelActivity.class);
+        final Uri uri = (new Uri.Builder())
+                .scheme("invalidscheme")
+                .authority("invalidauthority")
+                .appendQueryParameter(CancelActivity.JOB_ID, String.valueOf(jobId))
+                .appendQueryParameter(CancelActivity.DISPLAY_NAME, displayName)
+                .appendQueryParameter(CancelActivity.TYPE, String.valueOf(type)).build();
+        intent.setData(uri);
+
+        final Notification.Builder builder = new Notification.Builder(context);
+        builder.setOngoing(true)
+                .setProgress(totalCount, currentCount, totalCount == - 1)
+                .setTicker(tickerText)
+                .setContentTitle(description)
+                .setSmallIcon(type == VCardService.TYPE_IMPORT
+                        ? android.R.drawable.stat_sys_download
+                        : android.R.drawable.stat_sys_upload)
+                .setContentIntent(PendingIntent.getActivity(context, 0, intent, 0));
+        if (totalCount > 0) {
+            builder.setContentText(context.getString(R.string.percentage,
+                    String.valueOf(currentCount * 100 / totalCount)));
+        }
+        return builder.getNotification();
+    }
+
+    /**
+     * Constructs a Notification telling users the process is canceled.
+     *
+     * @param context
+     * @param description Content of the Notification
+     */
+    /* package */ static Notification constructCancelNotification(
+            Context context, String description) {
+        return new Notification.Builder(context)
+                .setAutoCancel(true)
+                .setSmallIcon(android.R.drawable.stat_notify_error)
+                .setContentTitle(description)
+                .setContentText(description)
+                .setContentIntent(PendingIntent.getActivity(context, 0, new Intent(), 0))
+                .getNotification();
+    }
+
+    /**
+     * Constructs a Notification telling users the process is finished.
+     *
+     * @param context
+     * @param description Content of the Notification
+     * @param intent Intent to be launched when the Notification is clicked. Can be null.
+     */
+    /* package */ static Notification constructFinishNotification(
+            Context context, String title, String description, Intent intent) {
+        return new Notification.Builder(context)
+                .setAutoCancel(true)
+                .setSmallIcon(android.R.drawable.stat_sys_download_done)
+                .setContentTitle(title)
+                .setContentText(description)
+                .setContentIntent(PendingIntent.getActivity(context, 0,
+                        (intent != null ? intent : new Intent()), 0))
+                .getNotification();
+    }
+
+    /**
+     * Constructs a Notification telling the vCard import has failed.
+     *
+     * @param context
+     * @param reason The reason why the import has failed. Shown in description field.
+     */
+    /* package */ static Notification constructImportFailureNotification(
+            Context context, String reason) {
+        return new Notification.Builder(context)
+                .setAutoCancel(true)
+                .setSmallIcon(android.R.drawable.stat_notify_error)
+                .setContentTitle(context.getString(R.string.vcard_import_failed))
+                .setContentText(reason)
+                .setContentIntent(PendingIntent.getActivity(context, 0, new Intent(), 0))
+                .getNotification();
+    }
+
+    @Override
+    public void onComplete() {
+        mContext.finish();
+    }
+}
diff --git a/src/com/android/contacts/common/vcard/ProcessorBase.java b/src/com/android/contacts/common/vcard/ProcessorBase.java
new file mode 100644
index 00000000..abc859dd
--- /dev/null
+++ b/src/com/android/contacts/common/vcard/ProcessorBase.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.contacts.common.vcard;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Future;
+import java.util.concurrent.RunnableFuture;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * A base processor class. One instance processes vCard one import/export request (imports a given
+ * vCard or exports a vCard). Expected to be used with {@link ExecutorService}.
+ *
+ * This instance starts itself with {@link #run()} method, and can be cancelled with
+ * {@link #cancel(boolean)}. Users can check the processor's status using {@link #isCancelled()}
+ * and {@link #isDone()} asynchronously.
+ *
+ * {@link #get()} and {@link #get(long, TimeUnit)}, which are form {@link Future}, aren't
+ * supported and {@link UnsupportedOperationException} will be just thrown when they are called.
+ */
+public abstract class ProcessorBase implements RunnableFuture<Object> {
+
+    /**
+     * @return the type of the processor. Must be {@link VCardService#TYPE_IMPORT} or
+     * {@link VCardService#TYPE_EXPORT}.
+     */
+    public abstract int getType();
+
+    @Override
+    public abstract void run();
+
+    /**
+     * Cancels this operation.
+     *
+     * @param mayInterruptIfRunning ignored. When this method is called, the instance
+     * stops processing and finish itself even if the thread is running.
+     *
+     * @see Future#cancel(boolean)
+     */
+    @Override
+    public abstract boolean cancel(boolean mayInterruptIfRunning);
+    @Override
+    public abstract boolean isCancelled();
+    @Override
+    public abstract boolean isDone();
+
+    /**
+     * Just throws {@link UnsupportedOperationException}.
+     */
+    @Override
+    public final Object get() {
+        throw new UnsupportedOperationException();
+    }
+
+    /**
+     * Just throws {@link UnsupportedOperationException}.
+     */
+    @Override
+    public final Object get(long timeout, TimeUnit unit) {
+        throw new UnsupportedOperationException();
+    }
+}
diff --git a/src/com/android/contacts/common/vcard/SelectAccountActivity.java b/src/com/android/contacts/common/vcard/SelectAccountActivity.java
new file mode 100644
index 00000000..d05810db
--- /dev/null
+++ b/src/com/android/contacts/common/vcard/SelectAccountActivity.java
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.contacts.common.vcard;
+
+import android.app.Activity;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Bundle;
+import android.util.Log;
+
+import com.android.contacts.common.R;
+import com.android.contacts.common.model.AccountTypeManager;
+import com.android.contacts.common.model.account.AccountWithDataSet;
+import com.android.contacts.common.util.AccountSelectionUtil;
+
+import java.util.List;
+
+public class SelectAccountActivity extends Activity {
+    private static final String LOG_TAG = "SelectAccountActivity";
+
+    public static final String ACCOUNT_NAME = "account_name";
+    public static final String ACCOUNT_TYPE = "account_type";
+    public static final String DATA_SET = "data_set";
+
+    private class CancelListener
+            implements DialogInterface.OnClickListener, DialogInterface.OnCancelListener {
+        public void onClick(DialogInterface dialog, int which) {
+            finish();
+        }
+        public void onCancel(DialogInterface dialog) {
+            finish();
+        }
+    }
+
+    private AccountSelectionUtil.AccountSelectedListener mAccountSelectionListener;
+
+    @Override
+    protected void onCreate(Bundle bundle) {
+        super.onCreate(bundle);
+
+        // There's three possibilities:
+        // - more than one accounts -> ask the user
+        // - just one account -> use the account without asking the user
+        // - no account -> use phone-local storage without asking the user
+        final int resId = R.string.import_from_sdcard;
+        final AccountTypeManager accountTypes = AccountTypeManager.getInstance(this);
+        final List<AccountWithDataSet> accountList = accountTypes.getAccounts(true);
+        if (accountList.size() == 0) {
+            Log.w(LOG_TAG, "Account does not exist");
+            finish();
+            return;
+        } else if (accountList.size() == 1) {
+            final AccountWithDataSet account = accountList.get(0);
+            final Intent intent = new Intent();
+            intent.putExtra(ACCOUNT_NAME, account.name);
+            intent.putExtra(ACCOUNT_TYPE, account.type);
+            intent.putExtra(DATA_SET, account.dataSet);
+            setResult(RESULT_OK, intent);
+            finish();
+            return;
+        }
+
+        Log.i(LOG_TAG, "The number of available accounts: " + accountList.size());
+
+        // Multiple accounts. Let users to select one.
+        mAccountSelectionListener =
+                new AccountSelectionUtil.AccountSelectedListener(
+                        this, accountList, resId) {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        dialog.dismiss();
+                        final AccountWithDataSet account = mAccountList.get(which);
+                        final Intent intent = new Intent();
+                        intent.putExtra(ACCOUNT_NAME, account.name);
+                        intent.putExtra(ACCOUNT_TYPE, account.type);
+                        intent.putExtra(DATA_SET, account.dataSet);
+                        setResult(RESULT_OK, intent);
+                        finish();
+                    }
+                };
+        showDialog(resId);
+        return;
+    }
+
+    @Override
+    protected Dialog onCreateDialog(int resId, Bundle bundle) {
+        switch (resId) {
+            case R.string.import_from_sdcard: {
+                if (mAccountSelectionListener == null) {
+                    throw new NullPointerException(
+                            "mAccountSelectionListener must not be null.");
+                }
+                return AccountSelectionUtil.getSelectAccountDialog(this, resId,
+                        mAccountSelectionListener,
+                        new CancelListener());
+            }
+        }
+        return super.onCreateDialog(resId, bundle);
+    }
+}
diff --git a/src/com/android/contacts/common/vcard/VCardCommonArguments.java b/src/com/android/contacts/common/vcard/VCardCommonArguments.java
new file mode 100644
index 00000000..c423ca3a
--- /dev/null
+++ b/src/com/android/contacts/common/vcard/VCardCommonArguments.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.contacts.common.vcard;
+
+/**
+ * Argument constants used by many activities and services.
+ */
+public class VCardCommonArguments {
+
+    // Argument used to pass calling activities to the target activity or service.
+    // The value should be a string class name (e.g. com.android.contacts.vcard.VCardCommonArgs)
+    public static final String ARG_CALLING_ACTIVITY = "CALLING_ACTIVITY";
+}
diff --git a/src/com/android/contacts/common/vcard/VCardImportExportListener.java b/src/com/android/contacts/common/vcard/VCardImportExportListener.java
new file mode 100644
index 00000000..e4e4893a
--- /dev/null
+++ b/src/com/android/contacts/common/vcard/VCardImportExportListener.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *	    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.contacts.common.vcard;
+
+import android.net.Uri;
+
+import com.android.vcard.VCardEntry;
+
+interface VCardImportExportListener {
+    void onImportProcessed(ImportRequest request, int jobId, int sequence);
+    void onImportParsed(ImportRequest request, int jobId, VCardEntry entry, int currentCount,
+            int totalCount);
+    void onImportFinished(ImportRequest request, int jobId, Uri uri);
+    void onImportFailed(ImportRequest request);
+    void onImportCanceled(ImportRequest request, int jobId);
+
+    void onExportProcessed(ExportRequest request, int jobId);
+    void onExportFailed(ExportRequest request);
+
+    void onCancelRequest(CancelRequest request, int type);
+    void onComplete();
+}
diff --git a/src/com/android/contacts/common/vcard/VCardService.java b/src/com/android/contacts/common/vcard/VCardService.java
new file mode 100644
index 00000000..07c2a3c1
--- /dev/null
+++ b/src/com/android/contacts/common/vcard/VCardService.java
@@ -0,0 +1,537 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.contacts.common.vcard;
+
+import android.app.Service;
+import android.content.Intent;
+import android.content.res.Resources;
+import android.media.MediaScannerConnection;
+import android.media.MediaScannerConnection.MediaScannerConnectionClient;
+import android.net.Uri;
+import android.os.Binder;
+import android.os.Environment;
+import android.os.IBinder;
+import android.os.Message;
+import android.os.Messenger;
+import android.os.RemoteException;
+import android.text.TextUtils;
+import android.util.Log;
+import android.util.SparseArray;
+
+import com.android.contacts.common.R;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.RejectedExecutionException;
+
+/**
+ * The class responsible for handling vCard import/export requests.
+ *
+ * This Service creates one ImportRequest/ExportRequest object (as Runnable) per request and push
+ * it to {@link ExecutorService} with single thread executor. The executor handles each request
+ * one by one, and notifies users when needed.
+ */
+// TODO: Using IntentService looks simpler than using Service + ServiceConnection though this
+// works fine enough. Investigate the feasibility.
+public class VCardService extends Service {
+    private final static String LOG_TAG = "VCardService";
+
+    /* package */ final static boolean DEBUG = false;
+
+    /* package */ static final int MSG_IMPORT_REQUEST = 1;
+    /* package */ static final int MSG_EXPORT_REQUEST = 2;
+    /* package */ static final int MSG_CANCEL_REQUEST = 3;
+    /* package */ static final int MSG_REQUEST_AVAILABLE_EXPORT_DESTINATION = 4;
+    /* package */ static final int MSG_SET_AVAILABLE_EXPORT_DESTINATION = 5;
+
+    /**
+     * Specifies the type of operation. Used when constructing a notification, canceling
+     * some operation, etc.
+     */
+    /* package */ static final int TYPE_IMPORT = 1;
+    /* package */ static final int TYPE_EXPORT = 2;
+
+    /* package */ static final String CACHE_FILE_PREFIX = "import_tmp_";
+
+
+    private class CustomMediaScannerConnectionClient implements MediaScannerConnectionClient {
+        final MediaScannerConnection mConnection;
+        final String mPath;
+
+        public CustomMediaScannerConnectionClient(String path) {
+            mConnection = new MediaScannerConnection(VCardService.this, this);
+            mPath = path;
+        }
+
+        public void start() {
+            mConnection.connect();
+        }
+
+        @Override
+        public void onMediaScannerConnected() {
+            if (DEBUG) { Log.d(LOG_TAG, "Connected to MediaScanner. Start scanning."); }
+            mConnection.scanFile(mPath, null);
+        }
+
+        @Override
+        public void onScanCompleted(String path, Uri uri) {
+            if (DEBUG) { Log.d(LOG_TAG, "scan completed: " + path); }
+            mConnection.disconnect();
+            removeConnectionClient(this);
+        }
+    }
+
+    // Should be single thread, as we don't want to simultaneously handle import and export
+    // requests.
+    private final ExecutorService mExecutorService = Executors.newSingleThreadExecutor();
+
+    private int mCurrentJobId;
+
+    // Stores all unfinished import/export jobs which will be executed by mExecutorService.
+    // Key is jobId.
+    private final SparseArray<ProcessorBase> mRunningJobMap = new SparseArray<ProcessorBase>();
+    // Stores ScannerConnectionClient objects until they finish scanning requested files.
+    // Uses List class for simplicity. It's not costly as we won't have multiple objects in
+    // almost all cases.
+    private final List<CustomMediaScannerConnectionClient> mRemainingScannerConnections =
+            new ArrayList<CustomMediaScannerConnectionClient>();
+
+    /* ** vCard exporter params ** */
+    // If true, VCardExporter is able to emits files longer than 8.3 format.
+    private static final boolean ALLOW_LONG_FILE_NAME = false;
+
+    private File mTargetDirectory;
+    private String mFileNamePrefix;
+    private String mFileNameSuffix;
+    private int mFileIndexMinimum;
+    private int mFileIndexMaximum;
+    private String mFileNameExtension;
+    private Set<String> mExtensionsToConsider;
+    private String mErrorReason;
+    private MyBinder mBinder;
+
+    private String mCallingActivity;
+
+    // File names currently reserved by some export job.
+    private final Set<String> mReservedDestination = new HashSet<String>();
+    /* ** end of vCard exporter params ** */
+
+    public class MyBinder extends Binder {
+        public VCardService getService() {
+            return VCardService.this;
+        }
+    }
+
+   @Override
+    public void onCreate() {
+        super.onCreate();
+        mBinder = new MyBinder();
+        if (DEBUG) Log.d(LOG_TAG, "vCard Service is being created.");
+        initExporterParams();
+    }
+
+    private void initExporterParams() {
+        mTargetDirectory = Environment.getExternalStorageDirectory();
+        mFileNamePrefix = getString(R.string.config_export_file_prefix);
+        mFileNameSuffix = getString(R.string.config_export_file_suffix);
+        mFileNameExtension = getString(R.string.config_export_file_extension);
+
+        mExtensionsToConsider = new HashSet<String>();
+        mExtensionsToConsider.add(mFileNameExtension);
+
+        final String additionalExtensions =
+            getString(R.string.config_export_extensions_to_consider);
+        if (!TextUtils.isEmpty(additionalExtensions)) {
+            for (String extension : additionalExtensions.split(",")) {
+                String trimed = extension.trim();
+                if (trimed.length() > 0) {
+                    mExtensionsToConsider.add(trimed);
+                }
+            }
+        }
+
+        final Resources resources = getResources();
+        mFileIndexMinimum = resources.getInteger(R.integer.config_export_file_min_index);
+        mFileIndexMaximum = resources.getInteger(R.integer.config_export_file_max_index);
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int id) {
+        mCallingActivity = intent.getExtras().getString(
+                VCardCommonArguments.ARG_CALLING_ACTIVITY);
+        return START_STICKY;
+    }
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        return mBinder;
+    }
+
+    @Override
+    public void onDestroy() {
+        if (DEBUG) Log.d(LOG_TAG, "VCardService is being destroyed.");
+        cancelAllRequestsAndShutdown();
+        clearCache();
+        super.onDestroy();
+    }
+
+    public synchronized void handleImportRequest(List<ImportRequest> requests,
+            VCardImportExportListener listener) {
+        if (DEBUG) {
+            final ArrayList<String> uris = new ArrayList<String>();
+            final ArrayList<String> displayNames = new ArrayList<String>();
+            for (ImportRequest request : requests) {
+                uris.add(request.uri.toString());
+                displayNames.add(request.displayName);
+            }
+            Log.d(LOG_TAG,
+                    String.format("received multiple import request (uri: %s, displayName: %s)",
+                            uris.toString(), displayNames.toString()));
+        }
+        final int size = requests.size();
+        for (int i = 0; i < size; i++) {
+            ImportRequest request = requests.get(i);
+
+            if (tryExecute(new ImportProcessor(this, listener, request, mCurrentJobId))) {
+                if (listener != null) {
+                    listener.onImportProcessed(request, mCurrentJobId, i);
+                }
+                mCurrentJobId++;
+            } else {
+                if (listener != null) {
+                    listener.onImportFailed(request);
+                }
+                // A rejection means executor doesn't run any more. Exit.
+                break;
+            }
+        }
+    }
+
+    public synchronized void handleExportRequest(ExportRequest request,
+            VCardImportExportListener listener) {
+        if (tryExecute(new ExportProcessor(this, request, mCurrentJobId, mCallingActivity))) {
+            final String path = request.destUri.getEncodedPath();
+            if (DEBUG) Log.d(LOG_TAG, "Reserve the path " + path);
+            if (!mReservedDestination.add(path)) {
+                Log.w(LOG_TAG,
+                        String.format("The path %s is already reserved. Reject export request",
+                                path));
+                if (listener != null) {
+                    listener.onExportFailed(request);
+                }
+                return;
+            }
+
+            if (listener != null) {
+                listener.onExportProcessed(request, mCurrentJobId);
+            }
+            mCurrentJobId++;
+        } else {
+            if (listener != null) {
+                listener.onExportFailed(request);
+            }
+        }
+    }
+
+    /**
+     * Tries to call {@link ExecutorService#execute(Runnable)} toward a given processor.
+     * @return true when successful.
+     */
+    private synchronized boolean tryExecute(ProcessorBase processor) {
+        try {
+            if (DEBUG) {
+                Log.d(LOG_TAG, "Executor service status: shutdown: " + mExecutorService.isShutdown()
+                        + ", terminated: " + mExecutorService.isTerminated());
+            }
+            mExecutorService.execute(processor);
+            mRunningJobMap.put(mCurrentJobId, processor);
+            return true;
+        } catch (RejectedExecutionException e) {
+            Log.w(LOG_TAG, "Failed to excetute a job.", e);
+            return false;
+        }
+    }
+
+    public synchronized void handleCancelRequest(CancelRequest request,
+            VCardImportExportListener listener) {
+        final int jobId = request.jobId;
+        if (DEBUG) Log.d(LOG_TAG, String.format("Received cancel request. (id: %d)", jobId));
+
+        final ProcessorBase processor = mRunningJobMap.get(jobId);
+        mRunningJobMap.remove(jobId);
+
+        if (processor != null) {
+            processor.cancel(true);
+            final int type = processor.getType();
+            if (listener != null) {
+                listener.onCancelRequest(request, type);
+            }
+            if (type == TYPE_EXPORT) {
+                final String path =
+                        ((ExportProcessor)processor).getRequest().destUri.getEncodedPath();
+                Log.i(LOG_TAG,
+                        String.format("Cancel reservation for the path %s if appropriate", path));
+                if (!mReservedDestination.remove(path)) {
+                    Log.w(LOG_TAG, "Not reserved.");
+                }
+            }
+        } else {
+            Log.w(LOG_TAG, String.format("Tried to remove unknown job (id: %d)", jobId));
+        }
+        stopServiceIfAppropriate();
+    }
+
+    public synchronized void handleRequestAvailableExportDestination(final Messenger messenger) {
+        if (DEBUG) Log.d(LOG_TAG, "Received available export destination request.");
+        final String path = getAppropriateDestination(mTargetDirectory);
+        final Message message;
+        if (path != null) {
+            message = Message.obtain(null,
+                    VCardService.MSG_SET_AVAILABLE_EXPORT_DESTINATION, 0, 0, path);
+        } else {
+            message = Message.obtain(null,
+                    VCardService.MSG_SET_AVAILABLE_EXPORT_DESTINATION,
+                    R.id.dialog_fail_to_export_with_reason, 0, mErrorReason);
+        }
+        try {
+            messenger.send(message);
+        } catch (RemoteException e) {
+            Log.w(LOG_TAG, "Failed to send reply for available export destination request.", e);
+        }
+    }
+
+    /**
+     * Checks job list and call {@link #stopSelf()} when there's no job and no scanner connection
+     * is remaining.
+     * A new job (import/export) cannot be submitted any more after this call.
+     */
+    private synchronized void stopServiceIfAppropriate() {
+        if (mRunningJobMap.size() > 0) {
+            final int size = mRunningJobMap.size();
+
+            // Check if there are processors which aren't finished yet. If we still have ones to
+            // process, we cannot stop the service yet. Also clean up already finished processors
+            // here.
+
+            // Job-ids to be removed. At first all elements in the array are invalid and will
+            // be filled with real job-ids from the array's top. When we find a not-yet-finished
+            // processor, then we start removing those finished jobs. In that case latter half of
+            // this array will be invalid.
+            final int[] toBeRemoved = new int[size];
+            for (int i = 0; i < size; i++) {
+                final int jobId = mRunningJobMap.keyAt(i);
+                final ProcessorBase processor = mRunningJobMap.valueAt(i);
+                if (!processor.isDone()) {
+                    Log.i(LOG_TAG, String.format("Found unfinished job (id: %d)", jobId));
+
+                    // Remove processors which are already "done", all of which should be before
+                    // processors which aren't done yet.
+                    for (int j = 0; j < i; j++) {
+                        mRunningJobMap.remove(toBeRemoved[j]);
+                    }
+                    return;
+                }
+
+                // Remember the finished processor.
+                toBeRemoved[i] = jobId;
+            }
+
+            // We're sure we can remove all. Instead of removing one by one, just call clear().
+            mRunningJobMap.clear();
+        }
+
+        if (!mRemainingScannerConnections.isEmpty()) {
+            Log.i(LOG_TAG, "MediaScanner update is in progress.");
+            return;
+        }
+
+        Log.i(LOG_TAG, "No unfinished job. Stop this service.");
+        mExecutorService.shutdown();
+        stopSelf();
+    }
+
+    /* package */ synchronized void updateMediaScanner(String path) {
+        if (DEBUG) {
+            Log.d(LOG_TAG, "MediaScanner is being updated: " + path);
+        }
+
+        if (mExecutorService.isShutdown()) {
+            Log.w(LOG_TAG, "MediaScanner update is requested after executor's being shut down. " +
+                    "Ignoring the update request");
+            return;
+        }
+        final CustomMediaScannerConnectionClient client =
+                new CustomMediaScannerConnectionClient(path);
+        mRemainingScannerConnections.add(client);
+        client.start();
+    }
+
+    private synchronized void removeConnectionClient(
+            CustomMediaScannerConnectionClient client) {
+        if (DEBUG) {
+            Log.d(LOG_TAG, "Removing custom MediaScannerConnectionClient.");
+        }
+        mRemainingScannerConnections.remove(client);
+        stopServiceIfAppropriate();
+    }
+
+    /* package */ synchronized void handleFinishImportNotification(
+            int jobId, boolean successful) {
+        if (DEBUG) {
+            Log.d(LOG_TAG, String.format("Received vCard import finish notification (id: %d). "
+                    + "Result: %b", jobId, (successful ? "success" : "failure")));
+        }
+        mRunningJobMap.remove(jobId);
+        stopServiceIfAppropriate();
+    }
+
+    /* package */ synchronized void handleFinishExportNotification(
+            int jobId, boolean successful) {
+        if (DEBUG) {
+            Log.d(LOG_TAG, String.format("Received vCard export finish notification (id: %d). "
+                    + "Result: %b", jobId, (successful ? "success" : "failure")));
+        }
+        final ProcessorBase job = mRunningJobMap.get(jobId);
+        mRunningJobMap.remove(jobId);
+        if (job == null) {
+            Log.w(LOG_TAG, String.format("Tried to remove unknown job (id: %d)", jobId));
+        } else if (!(job instanceof ExportProcessor)) {
+            Log.w(LOG_TAG,
+                    String.format("Removed job (id: %s) isn't ExportProcessor", jobId));
+        } else {
+            final String path = ((ExportProcessor)job).getRequest().destUri.getEncodedPath();
+            if (DEBUG) Log.d(LOG_TAG, "Remove reserved path " + path);
+            mReservedDestination.remove(path);
+        }
+
+        stopServiceIfAppropriate();
+    }
+
+    /**
+     * Cancels all the import/export requests and calls {@link ExecutorService#shutdown()}, which
+     * means this Service becomes no longer ready for import/export requests.
+     *
+     * Mainly called from onDestroy().
+     */
+    private synchronized void cancelAllRequestsAndShutdown() {
+        for (int i = 0; i < mRunningJobMap.size(); i++) {
+            mRunningJobMap.valueAt(i).cancel(true);
+        }
+        mRunningJobMap.clear();
+        mExecutorService.shutdown();
+    }
+
+    /**
+     * Removes import caches stored locally.
+     */
+    private void clearCache() {
+        for (final String fileName : fileList()) {
+            if (fileName.startsWith(CACHE_FILE_PREFIX)) {
+                // We don't want to keep all the caches so we remove cache files old enough.
+                Log.i(LOG_TAG, "Remove a temporary file: " + fileName);
+                deleteFile(fileName);
+            }
+        }
+    }
+
+    /**
+     * Returns an appropriate file name for vCard export. Returns null when impossible.
+     *
+     * @return destination path for a vCard file to be exported. null on error and mErrorReason
+     * is correctly set.
+     */
+    private String getAppropriateDestination(final File destDirectory) {
+        /*
+         * Here, file names have 5 parts: directory, prefix, index, suffix, and extension.
+         * e.g. "/mnt/sdcard/prfx00001sfx.vcf" -> "/mnt/sdcard", "prfx", "00001", "sfx", and ".vcf"
+         *      (In default, prefix and suffix is empty, so usually the destination would be
+         *       /mnt/sdcard/00001.vcf.)
+         *
+         * This method increments "index" part from 1 to maximum, and checks whether any file name
+         * following naming rule is available. If there's no file named /mnt/sdcard/00001.vcf, the
+         * name will be returned to a caller. If there are 00001.vcf 00002.vcf, 00003.vcf is
+         * returned.
+         *
+         * There may not be any appropriate file name. If there are 99999 vCard files in the
+         * storage, for example, there's no appropriate name, so this method returns
+         * null.
+         */
+
+        // Count the number of digits of mFileIndexMaximum
+        // e.g. When mFileIndexMaximum is 99999, fileIndexDigit becomes 5, as we will count the
+        int fileIndexDigit = 0;
+        {
+            // Calling Math.Log10() is costly.
+            int tmp;
+            for (fileIndexDigit = 0, tmp = mFileIndexMaximum; tmp > 0;
+                fileIndexDigit++, tmp /= 10) {
+            }
+        }
+
+        // %s05d%s (e.g. "p00001s")
+        final String bodyFormat = "%s%0" + fileIndexDigit + "d%s";
+
+        if (!ALLOW_LONG_FILE_NAME) {
+            final String possibleBody =
+                    String.format(bodyFormat, mFileNamePrefix, 1, mFileNameSuffix);
+            if (possibleBody.length() > 8 || mFileNameExtension.length() > 3) {
+                Log.e(LOG_TAG, "This code does not allow any long file name.");
+                mErrorReason = getString(R.string.fail_reason_too_long_filename,
+                        String.format("%s.%s", possibleBody, mFileNameExtension));
+                Log.w(LOG_TAG, "File name becomes too long.");
+                return null;
+            }
+        }
+
+        for (int i = mFileIndexMinimum; i <= mFileIndexMaximum; i++) {
+            boolean numberIsAvailable = true;
+            final String body = String.format(bodyFormat, mFileNamePrefix, i, mFileNameSuffix);
+            // Make sure that none of the extensions of mExtensionsToConsider matches. If this
+            // number is free, we'll go ahead with mFileNameExtension (which is included in
+            // mExtensionsToConsider)
+            for (String possibleExtension : mExtensionsToConsider) {
+                final File file = new File(destDirectory, body + "." + possibleExtension);
+                final String path = file.getAbsolutePath();
+                synchronized (this) {
+                    // Is this being exported right now? Skip this number
+                    if (mReservedDestination.contains(path)) {
+                        if (DEBUG) {
+                            Log.d(LOG_TAG, String.format("%s is already being exported.", path));
+                        }
+                        numberIsAvailable = false;
+                        break;
+                    }
+                }
+                if (file.exists()) {
+                    numberIsAvailable = false;
+                    break;
+                }
+            }
+            if (numberIsAvailable) {
+                return new File(destDirectory, body + "." + mFileNameExtension).getAbsolutePath();
+            }
+        }
+
+        Log.w(LOG_TAG, "Reached vCard number limit. Maybe there are too many vCard in the storage");
+        mErrorReason = getString(R.string.fail_reason_too_many_vcard);
+        return null;
+    }
+}