92 lines
3.6 KiB
Java
92 lines
3.6 KiB
Java
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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package com.android.dialer.backup;
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import android.app.backup.BackupDataInput;
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import android.app.backup.BackupDataOutput;
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import android.os.ParcelFileDescriptor;
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import android.support.annotation.NonNull;
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import android.support.annotation.VisibleForTesting;
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import android.util.ArrayMap;
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import com.android.dialer.common.Assert;
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import com.android.dialer.common.LogUtil;
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import com.android.dialer.logging.DialerImpression;
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import com.android.dialer.logging.Logger;
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import com.google.android.libraries.backup.BackupKeyPredicate;
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import com.google.android.libraries.backup.BackupKeyPredicates;
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import com.google.android.libraries.backup.PersistentBackupAgentHelper;
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import java.io.IOException;
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import java.util.Map;
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/** Implementation of Key/Value Backup that powers Dialer's backup and restore. */
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public class DialerPersistentBackupAgent extends PersistentBackupAgentHelper {
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private static final String[] BACKUP_NAMED_SHARED_PREFS = {
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"com.google.android.dialer_preferences", "com.google.android.dialer", "com.android.dialer"
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};
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@NonNull private final String[] sharedPreferencesToBackup;
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@VisibleForTesting(otherwise = VisibleForTesting.NONE)
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DialerPersistentBackupAgent(@NonNull String[] sharedPrefs) {
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this.sharedPreferencesToBackup = Assert.isNotNull(sharedPrefs);
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Logger.get(this).logImpression(DialerImpression.Type.BACKUP_KEY_VALUE_BACKUP_AGENT_CONSTRUCTOR);
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}
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public DialerPersistentBackupAgent() {
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this(BACKUP_NAMED_SHARED_PREFS);
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}
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@Override
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public void onRestore(BackupDataInput data, int appVersionCode, ParcelFileDescriptor stateFile)
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throws IOException {
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Logger.get(this).logImpression(DialerImpression.Type.BACKUP_KEY_VALUE_ON_RESTORE);
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LogUtil.i("DialerPersistentBackupAgent.onRestore", "restore from version: " + appVersionCode);
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super.onRestore(data, appVersionCode, stateFile);
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}
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@Override
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public void onBackup(
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ParcelFileDescriptor oldState, BackupDataOutput data, ParcelFileDescriptor newState)
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throws IOException {
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Logger.get(this).logImpression(DialerImpression.Type.BACKUP_KEY_VALUE_ON_BACKUP);
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LogUtil.i("DialerPersistentBackupAgent.onBackup", "onBackup being performed");
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super.onBackup(oldState, data, newState);
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}
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@Override
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public Map<String, BackupKeyPredicate> getBackupSpecification() {
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Logger.get(this).logImpression(DialerImpression.Type.BACKUP_KEY_VALUE_GET_BACKUP_SPECIFICATION);
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LogUtil.i(
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"DialerPersistentBackupAgent.getBackupSpecification",
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"number of files being backed up: " + sharedPreferencesToBackup.length);
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Map<String, BackupKeyPredicate> arrayMap = new ArrayMap<>();
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for (String fileName : sharedPreferencesToBackup) {
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LogUtil.i("DialerPersistentBackupAgent.getBackupSpecification", "arrayMap.put: " + fileName);
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arrayMap.put(fileName, BackupKeyPredicates.alwaysTrue());
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}
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return arrayMap;
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}
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@Override
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public void onRestoreFinished() {
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Logger.get(this).logImpression(DialerImpression.Type.BACKUP_KEY_VALUE_ON_RESTORE_FINISHED);
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super.onRestoreFinished();
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}
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}
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