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/*
* Copyright (C) 2014 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.interactions;
import android.content.AsyncTaskLoader;
import android.content.ComponentName;
import android.content.ContentValues;
import android.content.Context;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.database.DatabaseUtils;
import android.net.Uri;
import android.provider.CallLog.Calls;
import android.telephony.PhoneNumberUtils;
import android.text.TextUtils;
import com.android.contacts.incall.InCallPluginHelper;
import com.google.common.annotations.VisibleForTesting;
import com.android.contacts.common.util.PermissionsUtil;
import com.android.phone.common.incall.CallMethodInfo;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
public class CallLogInteractionsLoader extends AsyncTaskLoader<List<ContactInteraction>> {
private final Context mContext;
private final String[] mPhoneNumbers;
private final int mMaxToRetrieve;
private List<ContactInteraction> mData;
private HashMap<ComponentName, List<String>> mPluginAccountsMap;
public CallLogInteractionsLoader(Context context, String[] phoneNumbers, HashMap<ComponentName,
List<String>> pluginAccountsMap, int maxToRetrieve) {
super(context);
mContext = context;
mPhoneNumbers = phoneNumbers;
mPluginAccountsMap = pluginAccountsMap;
mMaxToRetrieve = maxToRetrieve;
}
@Override
public List<ContactInteraction> loadInBackground() {
if (!PermissionsUtil.hasPhonePermissions(getContext()) || !getContext().getPackageManager()
.hasSystemFeature(PackageManager.FEATURE_TELEPHONY)
|| (((mPhoneNumbers == null || mPhoneNumbers.length <= 0 || mMaxToRetrieve <= 0))
&& (mPluginAccountsMap == null || mPluginAccountsMap.size() == 0))) {
return Collections.emptyList();
}
final List<ContactInteraction> interactions = new ArrayList<>();
if (mPhoneNumbers != null) {
for (String number : mPhoneNumbers) {
interactions.addAll(getCallLogInteractions(number, null));
}
}
// add plugin entries
if (InCallPluginHelper.infoReady()) {
HashMap<ComponentName, CallMethodInfo> inCallPlugins = InCallPluginHelper
.getAllEnabledCallMethods();
if (inCallPlugins != null) {
for (ComponentName cn : inCallPlugins.keySet()) {
List<String> accountList = mPluginAccountsMap.get(cn);
CallMethodInfo cmi = inCallPlugins.get(cn);
if (cmi == null) continue;
if (accountList == null || cmi == null) continue;
for (int i = 0; i < accountList.size(); i++) {
interactions.addAll(getCallLogInteractions(accountList.get(i), cmi));
}
}
}
}
// Sort the call log interactions by date for duplicate removal
Collections.sort(interactions, new Comparator<ContactInteraction>() {
@Override
public int compare(ContactInteraction i1, ContactInteraction i2) {
if (i2.getInteractionDate() - i1.getInteractionDate() > 0) {
return 1;
} else if (i2.getInteractionDate() == i1.getInteractionDate()) {
return 0;
} else {
return -1;
}
}
});
// Duplicates only occur because of fuzzy matching. No need to dedupe a single number.
if (interactions.size() == 1) {
return interactions;
}
return pruneDuplicateCallLogInteractions(interactions, mMaxToRetrieve);
}
/**
* Two different phone numbers can match the same call log entry (since phone number
* matching is inexact). Therefore, we need to remove duplicates. In a reasonable call log,
* every entry should have a distinct date. Therefore, we can assume duplicate entries are
* adjacent entries.
* @param interactions The interaction list potentially containing duplicates
* @return The list with duplicates removed
*/
@VisibleForTesting
static List<ContactInteraction> pruneDuplicateCallLogInteractions(
List<ContactInteraction> interactions, int maxToRetrieve) {
final List<ContactInteraction> subsetInteractions = new ArrayList<>();
for (int i = 0; i < interactions.size(); i++) {
if (i >= 1 && interactions.get(i).getInteractionDate() ==
interactions.get(i-1).getInteractionDate()) {
continue;
}
subsetInteractions.add(interactions.get(i));
if (subsetInteractions.size() >= maxToRetrieve) {
break;
}
}
return subsetInteractions;
}
private List<ContactInteraction> getCallLogInteractions(String phoneNumber, CallMethodInfo
cmi) {
// TODO: the phone number added to the ContactInteractions result should retain their
// original formatting since TalkBack is not reading the normalized number correctly
String pluginComponent = cmi == null ? "" : cmi.mComponent.flattenToString();
final String normalizedNumber = TextUtils.isEmpty(pluginComponent) ?
PhoneNumberUtils.normalizeNumber(phoneNumber) : phoneNumber;
// If the number contains only symbols, we can skip it
if (TextUtils.isEmpty(normalizedNumber)) {
return Collections.emptyList();
}
final Uri uri = Uri.withAppendedPath(Calls.CONTENT_FILTER_URI,
Uri.encode(normalizedNumber));
// Append the LIMIT clause onto the ORDER BY clause. This won't cause crashes as long
// as we don't also set the {@link android.provider.CallLog.Calls.LIMIT_PARAM_KEY} that
// becomes available in KK.
final String orderByAndLimit = Calls.DATE + " DESC LIMIT " + mMaxToRetrieve;
final Cursor cursor = getContext().getContentResolver().query(uri, null, null, null,
orderByAndLimit);
try {
if (cursor == null || cursor.getCount() < 1) {
return Collections.emptyList();
}
cursor.moveToPosition(-1);
List<ContactInteraction> interactions = new ArrayList<>();
while (cursor.moveToNext()) {
final ContentValues values = new ContentValues();
DatabaseUtils.cursorRowToContentValues(cursor, values);
CallLogInteraction interaction = new CallLogInteraction(values);
// loadInBackground calls this function twice
// First pass: argument phoneNumber: PSTN number, pluginComponent: null
// (if the PSTN number was dialed through a plugin, the queried cursor entry should
// contain the plugin component in the "plugin_package_name" column)
// Second pass: argument phoneNumber: plugin user handle, pluginComponent: valid
if ((TextUtils.isEmpty(pluginComponent) &&
!TextUtils.isEmpty(interaction.getPluginPkgName())) ||
(!TextUtils.isEmpty(pluginComponent) &&
TextUtils.equals(interaction.getPluginPkgName(), pluginComponent)))
{
// PSTN dialed through a plugin
if (cmi == null) {
cmi = InCallPluginHelper.getCallMethod(ComponentName.unflattenFromString
(interaction.getPluginPkgName()));
}
// No matching plugin, skip
if (cmi == null) continue;
interaction.setPluginInfo(mContext, cmi.mBrandIconId, cmi.mName);
}
interactions.add(interaction);
}
return interactions;
} finally {
if (cursor != null) {
cursor.close();
}
}
}
@Override
protected void onStartLoading() {
super.onStartLoading();
if (mData != null) {
deliverResult(mData);
}
if (takeContentChanged() || mData == null) {
forceLoad();
}
}
@Override
protected void onStopLoading() {
// Attempt to cancel the current load task if possible.
cancelLoad();
}
@Override
public void deliverResult(List<ContactInteraction> data) {
mData = data;
if (isStarted()) {
super.deliverResult(data);
}
}
@Override
protected void onReset() {
super.onReset();
// Ensure the loader is stopped
onStopLoading();
if (mData != null) {
mData.clear();
}
}
}
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