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/*
* Copyright (C) 2017 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.dialer.backup;
import android.app.backup.BackupDataInput;
import android.app.backup.BackupDataOutput;
import android.os.ParcelFileDescriptor;
import android.support.annotation.NonNull;
import android.support.annotation.VisibleForTesting;
import android.util.ArrayMap;
import com.android.dialer.common.Assert;
import com.android.dialer.common.LogUtil;
import com.android.dialer.logging.DialerImpression;
import com.android.dialer.logging.Logger;
import com.google.android.libraries.backup.BackupKeyPredicate;
import com.google.android.libraries.backup.BackupKeyPredicates;
import com.google.android.libraries.backup.PersistentBackupAgentHelper;
import java.io.IOException;
import java.util.Map;
/** Implementation of Key/Value Backup that powers Dialer's backup and restore. */
public class DialerPersistentBackupAgent extends PersistentBackupAgentHelper {
private static final String DEFAULT_SHARED_PREFS_NAME = "com.google.android.dialer_preferences";
@NonNull private final String sharedPrefsName;
@VisibleForTesting(otherwise = VisibleForTesting.NONE)
DialerPersistentBackupAgent(@NonNull String sharedPreferenceName) {
this.sharedPrefsName = Assert.isNotNull(sharedPreferenceName);
Logger.get(this).logImpression(DialerImpression.Type.BACKUP_KEY_VALUE_BACKUP_AGENT_CONSTRUCTOR);
}
public DialerPersistentBackupAgent() {
this(DEFAULT_SHARED_PREFS_NAME);
}
@Override
public void onRestore(BackupDataInput data, int appVersionCode, ParcelFileDescriptor stateFile)
throws IOException {
Logger.get(this).logImpression(DialerImpression.Type.BACKUP_KEY_VALUE_ON_RESTORE);
LogUtil.i("DialerPersistentBackupAgent.onRestore", "restore from version: " + appVersionCode);
super.onRestore(data, appVersionCode, stateFile);
}
@Override
public void onBackup(
ParcelFileDescriptor oldState, BackupDataOutput data, ParcelFileDescriptor newState)
throws IOException {
Logger.get(this).logImpression(DialerImpression.Type.BACKUP_KEY_VALUE_ON_BACKUP);
LogUtil.i("DialerPersistentBackupAgent.onBackup", "onBackup being performed");
super.onBackup(oldState, data, newState);
}
@Override
public Map<String, BackupKeyPredicate> getBackupSpecification() {
Logger.get(this).logImpression(DialerImpression.Type.BACKUP_KEY_VALUE_GET_BACKUP_SPECIFICATION);
LogUtil.i(
"DialerPersistentBackupAgent.getBackupSpecification",
"file being backed up: " + sharedPrefsName);
Map<String, BackupKeyPredicate> backupSpecification = new ArrayMap<>();
backupSpecification.put(sharedPrefsName, BackupKeyPredicates.alwaysTrue());
return backupSpecification;
}
@Override
public void onRestoreFinished() {
Logger.get(this).logImpression(DialerImpression.Type.BACKUP_KEY_VALUE_ON_RESTORE_FINISHED);
super.onRestoreFinished();
}
}
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