| /* |
| * Copyright (C) 2015 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.server.job.controllers; |
| |
| import android.app.usage.UsageStatsManagerInternal; |
| import android.content.Context; |
| import android.util.Slog; |
| |
| import com.android.server.LocalServices; |
| import com.android.server.job.JobSchedulerService; |
| import com.android.server.job.StateChangedListener; |
| |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| |
| /** |
| * Controls when apps are considered idle and if jobs pertaining to those apps should |
| * be executed. Apps that haven't been actively launched or accessed from a foreground app |
| * for a certain amount of time (maybe hours or days) are considered idle. When the app comes |
| * out of idle state, it will be allowed to run scheduled jobs. |
| */ |
| public class AppIdleController extends StateController { |
| |
| private static final String LOG_TAG = "AppIdleController"; |
| private static final boolean DEBUG = false; |
| |
| // Singleton factory |
| private static Object sCreationLock = new Object(); |
| private static volatile AppIdleController sController; |
| final ArrayList<JobStatus> mTrackedTasks = new ArrayList<JobStatus>(); |
| private final UsageStatsManagerInternal mUsageStatsInternal; |
| boolean mAppIdleParoleOn; |
| |
| public static AppIdleController get(JobSchedulerService service) { |
| synchronized (sCreationLock) { |
| if (sController == null) { |
| sController = new AppIdleController(service, service.getContext()); |
| } |
| return sController; |
| } |
| } |
| |
| private AppIdleController(StateChangedListener stateChangedListener, Context context) { |
| super(stateChangedListener, context); |
| mUsageStatsInternal = LocalServices.getService(UsageStatsManagerInternal.class); |
| mAppIdleParoleOn = mUsageStatsInternal.isAppIdleParoleOn(); |
| mUsageStatsInternal.addAppIdleStateChangeListener(new AppIdleStateChangeListener()); |
| } |
| |
| @Override |
| public void maybeStartTrackingJob(JobStatus jobStatus) { |
| synchronized (mTrackedTasks) { |
| mTrackedTasks.add(jobStatus); |
| String packageName = jobStatus.getSourcePackageName(); |
| final boolean appIdle = !mAppIdleParoleOn && mUsageStatsInternal.isAppIdle(packageName, |
| jobStatus.getSourceUid(), jobStatus.getSourceUserId()); |
| if (DEBUG) { |
| Slog.d(LOG_TAG, "Start tracking, setting idle state of " |
| + packageName + " to " + appIdle); |
| } |
| jobStatus.appNotIdleConstraintSatisfied.set(!appIdle); |
| } |
| } |
| |
| @Override |
| public void maybeStopTrackingJob(JobStatus jobStatus) { |
| synchronized (mTrackedTasks) { |
| mTrackedTasks.remove(jobStatus); |
| } |
| } |
| |
| @Override |
| public void dumpControllerState(PrintWriter pw) { |
| pw.println("AppIdle"); |
| pw.println("Parole On: " + mAppIdleParoleOn); |
| synchronized (mTrackedTasks) { |
| for (JobStatus task : mTrackedTasks) { |
| pw.print(task.getSourcePackageName()); |
| pw.print(":idle=" + !task.appNotIdleConstraintSatisfied.get()); |
| pw.print(", "); |
| } |
| pw.println(); |
| } |
| } |
| |
| void setAppIdleParoleOn(boolean isAppIdleParoleOn) { |
| // Flag if any app's idle state has changed |
| boolean changed = false; |
| synchronized (mTrackedTasks) { |
| if (mAppIdleParoleOn == isAppIdleParoleOn) { |
| return; |
| } |
| mAppIdleParoleOn = isAppIdleParoleOn; |
| for (JobStatus task : mTrackedTasks) { |
| String packageName = task.getSourcePackageName(); |
| final boolean appIdle = !mAppIdleParoleOn && mUsageStatsInternal.isAppIdle(packageName, |
| task.getSourceUid(), task.getSourceUserId()); |
| if (DEBUG) { |
| Slog.d(LOG_TAG, "Setting idle state of " + packageName + " to " + appIdle); |
| } |
| if (task.appNotIdleConstraintSatisfied.get() == appIdle) { |
| task.appNotIdleConstraintSatisfied.set(!appIdle); |
| changed = true; |
| } |
| } |
| } |
| if (changed) { |
| mStateChangedListener.onControllerStateChanged(); |
| } |
| } |
| |
| private class AppIdleStateChangeListener |
| extends UsageStatsManagerInternal.AppIdleStateChangeListener { |
| @Override |
| public void onAppIdleStateChanged(String packageName, int userId, boolean idle) { |
| boolean changed = false; |
| synchronized (mTrackedTasks) { |
| if (mAppIdleParoleOn) { |
| return; |
| } |
| for (JobStatus task : mTrackedTasks) { |
| if (task.getSourcePackageName().equals(packageName) |
| && task.getSourceUserId() == userId) { |
| if (task.appNotIdleConstraintSatisfied.get() != !idle) { |
| if (DEBUG) { |
| Slog.d(LOG_TAG, "App Idle state changed, setting idle state of " |
| + packageName + " to " + idle); |
| } |
| task.appNotIdleConstraintSatisfied.set(!idle); |
| changed = true; |
| } |
| } |
| } |
| } |
| if (changed) { |
| mStateChangedListener.onControllerStateChanged(); |
| } |
| } |
| |
| @Override |
| public void onParoleStateChanged(boolean isParoleOn) { |
| if (DEBUG) { |
| Slog.d(LOG_TAG, "Parole on: " + isParoleOn); |
| } |
| setAppIdleParoleOn(isParoleOn); |
| } |
| } |
| } |