| /* |
| * 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.datasources.systemcalllog; |
| |
| import android.content.Context; |
| import android.database.ContentObserver; |
| import android.database.sqlite.SQLiteDatabase; |
| import android.net.Uri; |
| import android.os.Handler; |
| import android.provider.CallLog; |
| import android.support.annotation.MainThread; |
| import android.support.annotation.WorkerThread; |
| import com.android.dialer.calllog.database.CallLogMutations; |
| import com.android.dialer.calllog.datasources.CallLogDataSource; |
| import com.android.dialer.common.Assert; |
| import com.android.dialer.common.LogUtil; |
| import com.android.dialer.common.concurrent.ThreadUtil; |
| import com.android.dialer.util.PermissionsUtil; |
| import javax.inject.Inject; |
| |
| /** |
| * Responsible for defining the rows in the annotated call log and maintaining the columns in it |
| * which are derived from the system call log. |
| */ |
| public class SystemCallLogDataSource implements CallLogDataSource { |
| |
| @Inject |
| public SystemCallLogDataSource() {} |
| |
| @MainThread |
| @Override |
| public void registerContentObservers( |
| Context appContext, ContentObserverCallbacks contentObserverCallbacks) { |
| Assert.isMainThread(); |
| |
| if (!PermissionsUtil.hasCallLogReadPermissions(appContext)) { |
| LogUtil.i("SystemCallLogDataSource.registerContentObservers", "no call log permissions"); |
| return; |
| } |
| |
| appContext |
| .getContentResolver() |
| .registerContentObserver( |
| CallLog.Calls.CONTENT_URI, |
| true, |
| new CallLogObserver( |
| ThreadUtil.getUiThreadHandler(), appContext, contentObserverCallbacks)); |
| } |
| |
| @WorkerThread |
| @Override |
| public boolean isDirty(Context appContext) { |
| Assert.isWorkerThread(); |
| |
| /* |
| * The system call log has a last updated timestamp, but deletes are physical (the "deleted" |
| * column is unused). This means that we can't detect deletes without scanning the entire table, |
| * which would be too slow. So, we just rely on content observers to trigger rebuilds when any |
| * change is made to the system call log. |
| */ |
| return false; |
| } |
| |
| @WorkerThread |
| @Override |
| public void fill( |
| Context appContext, |
| SQLiteDatabase readableDatabase, |
| long lastRebuildTimeMillis, |
| CallLogMutations mutations) { |
| Assert.isWorkerThread(); |
| |
| // This data source should always run first so the mutations should always be empty. |
| Assert.checkState(mutations.isEmpty()); |
| |
| // TODO: Implementation. |
| } |
| |
| private static class CallLogObserver extends ContentObserver { |
| private final Context appContext; |
| private final ContentObserverCallbacks contentObserverCallbacks; |
| |
| CallLogObserver( |
| Handler handler, Context appContext, ContentObserverCallbacks contentObserverCallbacks) { |
| super(handler); |
| this.appContext = appContext; |
| this.contentObserverCallbacks = contentObserverCallbacks; |
| } |
| |
| @MainThread |
| @Override |
| public void onChange(boolean selfChange, Uri uri) { |
| Assert.isMainThread(); |
| LogUtil.enterBlock("SystemCallLogDataSource.CallLogObserver.onChange"); |
| super.onChange(selfChange, uri); |
| |
| /* |
| * The system call log has a last updated timestamp, but deletes are physical (the "deleted" |
| * column is unused). This means that we can't detect deletes without scanning the entire |
| * table, which would be too slow. So, we just rely on content observers to trigger rebuilds |
| * when any change is made to the system call log. |
| */ |
| contentObserverCallbacks.markDirtyAndNotify(appContext); |
| } |
| } |
| } |