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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.calllog;
import com.android.dialer.calllog.datasources.CallLogDataSource;
import com.android.dialer.calllog.datasources.DataSources;
import com.android.dialer.common.LogUtil;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.MoreExecutors;
import java.util.ArrayList;
import java.util.List;
import javax.inject.Inject;
import javax.inject.Singleton;
/**
* Coordinates work across {@link DataSources}.
*
* <p>All methods should be called on the main thread.
*/
@Singleton
public final class CallLogFramework {
private final DataSources dataSources;
private final AnnotatedCallLogMigrator annotatedCallLogMigrator;
@Inject
CallLogFramework(DataSources dataSources, AnnotatedCallLogMigrator annotatedCallLogMigrator) {
this.dataSources = dataSources;
this.annotatedCallLogMigrator = annotatedCallLogMigrator;
}
/** Registers the content observers for all data sources. */
public void registerContentObservers() {
LogUtil.enterBlock("CallLogFramework.registerContentObservers");
for (CallLogDataSource dataSource : dataSources.getDataSourcesIncludingSystemCallLog()) {
dataSource.registerContentObservers();
}
}
/** Enables the framework. */
public ListenableFuture<Void> enable() {
registerContentObservers();
return annotatedCallLogMigrator.migrate();
}
/** Disables the framework. */
public ListenableFuture<Void> disable() {
return Futures.transform(
Futures.allAsList(disableDataSources(), annotatedCallLogMigrator.clearData()),
unused -> null,
MoreExecutors.directExecutor());
}
private ListenableFuture<Void> disableDataSources() {
LogUtil.enterBlock("CallLogFramework.disableDataSources");
for (CallLogDataSource dataSource : dataSources.getDataSourcesIncludingSystemCallLog()) {
dataSource.unregisterContentObservers();
}
// Clear data only after all content observers have been disabled.
List<ListenableFuture<Void>> allFutures = new ArrayList<>();
for (CallLogDataSource dataSource : dataSources.getDataSourcesIncludingSystemCallLog()) {
allFutures.add(dataSource.clearData());
}
return Futures.transform(
Futures.allAsList(allFutures), unused -> null, MoreExecutors.directExecutor());
}
}
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