| /* |
| * 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.tv.dvr; |
| |
| import android.app.AlarmManager; |
| import android.app.PendingIntent; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.media.tv.TvInputInfo; |
| import android.media.tv.TvInputManager.TvInputCallback; |
| import android.os.Looper; |
| import android.support.annotation.MainThread; |
| import android.support.annotation.VisibleForTesting; |
| import android.util.ArrayMap; |
| import android.util.Log; |
| import android.util.Range; |
| |
| import com.android.tv.InputSessionManager; |
| import com.android.tv.data.ChannelDataManager; |
| import com.android.tv.data.ChannelDataManager.Listener; |
| import com.android.tv.dvr.DvrDataManager.OnDvrScheduleLoadFinishedListener; |
| import com.android.tv.dvr.DvrDataManager.ScheduledRecordingListener; |
| import com.android.tv.util.Clock; |
| import com.android.tv.util.TvInputManagerHelper; |
| import com.android.tv.util.Utils; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * The core class to manage schedule and run actual recording. |
| */ |
| @MainThread |
| public class Scheduler extends TvInputCallback implements ScheduledRecordingListener { |
| private static final String TAG = "Scheduler"; |
| private static final boolean DEBUG = false; |
| |
| private final static long SOON_DURATION_IN_MS = TimeUnit.MINUTES.toMillis(5); |
| @VisibleForTesting final static long MS_TO_WAKE_BEFORE_START = TimeUnit.MINUTES.toMillis(1); |
| |
| private final Looper mLooper; |
| private final InputSessionManager mSessionManager; |
| private final WritableDvrDataManager mDataManager; |
| private final DvrManager mDvrManager; |
| private final ChannelDataManager mChannelDataManager; |
| private final TvInputManagerHelper mInputManager; |
| private final Context mContext; |
| private final Clock mClock; |
| private final AlarmManager mAlarmManager; |
| |
| private final Map<String, InputTaskScheduler> mInputSchedulerMap = new ArrayMap<>(); |
| private long mLastStartTimePendingMs; |
| |
| public Scheduler(Looper looper, DvrManager dvrManager, InputSessionManager sessionManager, |
| WritableDvrDataManager dataManager, ChannelDataManager channelDataManager, |
| TvInputManagerHelper inputManager, Context context, Clock clock, |
| AlarmManager alarmManager) { |
| mLooper = looper; |
| mDvrManager = dvrManager; |
| mSessionManager = sessionManager; |
| mDataManager = dataManager; |
| mChannelDataManager = channelDataManager; |
| mInputManager = inputManager; |
| mContext = context; |
| mClock = clock; |
| mAlarmManager = alarmManager; |
| } |
| |
| /** |
| * Starts the scheduler. |
| */ |
| public void start() { |
| mDataManager.addScheduledRecordingListener(this); |
| mInputManager.addCallback(this); |
| if (mDataManager.isDvrScheduleLoadFinished() && mChannelDataManager.isDbLoadFinished()) { |
| updateInternal(); |
| } else { |
| if (!mDataManager.isDvrScheduleLoadFinished()) { |
| mDataManager.addDvrScheduleLoadFinishedListener( |
| new OnDvrScheduleLoadFinishedListener() { |
| @Override |
| public void onDvrScheduleLoadFinished() { |
| mDataManager.removeDvrScheduleLoadFinishedListener(this); |
| updateInternal(); |
| } |
| }); |
| } |
| if (!mChannelDataManager.isDbLoadFinished()) { |
| mChannelDataManager.addListener(new Listener() { |
| @Override |
| public void onLoadFinished() { |
| mChannelDataManager.removeListener(this); |
| updateInternal(); |
| } |
| |
| @Override |
| public void onChannelListUpdated() { } |
| |
| @Override |
| public void onChannelBrowsableChanged() { } |
| }); |
| } |
| } |
| } |
| |
| /** |
| * Stops the scheduler. |
| */ |
| public void stop() { |
| for (InputTaskScheduler inputTaskScheduler : mInputSchedulerMap.values()) { |
| inputTaskScheduler.stop(); |
| } |
| mInputManager.removeCallback(this); |
| mDataManager.removeScheduledRecordingListener(this); |
| } |
| |
| private void updatePendingRecordings() { |
| List<ScheduledRecording> scheduledRecordings = mDataManager |
| .getScheduledRecordings(new Range<>(mLastStartTimePendingMs, |
| mClock.currentTimeMillis() + SOON_DURATION_IN_MS), |
| ScheduledRecording.STATE_RECORDING_NOT_STARTED); |
| for (ScheduledRecording r : scheduledRecordings) { |
| scheduleRecordingSoon(r); |
| } |
| } |
| |
| /** |
| * Start recording that will happen soon, and set the next alarm time. |
| */ |
| public void update() { |
| if (DEBUG) Log.d(TAG, "update"); |
| updateInternal(); |
| } |
| |
| private void updateInternal() { |
| if (isInitialized()) { |
| updatePendingRecordings(); |
| updateNextAlarm(); |
| } |
| } |
| |
| private boolean isInitialized() { |
| return mDataManager.isDvrScheduleLoadFinished() && mChannelDataManager.isDbLoadFinished(); |
| } |
| |
| @Override |
| public void onScheduledRecordingAdded(ScheduledRecording... schedules) { |
| if (DEBUG) Log.d(TAG, "added " + Arrays.asList(schedules)); |
| if (!isInitialized()) { |
| return; |
| } |
| handleScheduleChange(schedules); |
| } |
| |
| @Override |
| public void onScheduledRecordingRemoved(ScheduledRecording... schedules) { |
| if (DEBUG) Log.d(TAG, "removed " + Arrays.asList(schedules)); |
| if (!isInitialized()) { |
| return; |
| } |
| boolean needToUpdateAlarm = false; |
| for (ScheduledRecording schedule : schedules) { |
| InputTaskScheduler scheduler = mInputSchedulerMap.get(schedule.getInputId()); |
| if (scheduler != null) { |
| scheduler.removeSchedule(schedule); |
| needToUpdateAlarm = true; |
| } |
| } |
| if (needToUpdateAlarm) { |
| updateNextAlarm(); |
| } |
| } |
| |
| @Override |
| public void onScheduledRecordingStatusChanged(ScheduledRecording... schedules) { |
| if (DEBUG) Log.d(TAG, "state changed " + Arrays.asList(schedules)); |
| if (!isInitialized()) { |
| return; |
| } |
| // Update the recordings. |
| for (ScheduledRecording schedule : schedules) { |
| InputTaskScheduler scheduler = mInputSchedulerMap.get(schedule.getInputId()); |
| if (scheduler != null) { |
| scheduler.updateSchedule(schedule); |
| } |
| } |
| handleScheduleChange(schedules); |
| } |
| |
| private void handleScheduleChange(ScheduledRecording... schedules) { |
| boolean needToUpdateAlarm = false; |
| for (ScheduledRecording schedule : schedules) { |
| if (schedule.getState() == ScheduledRecording.STATE_RECORDING_NOT_STARTED) { |
| if (startsWithin(schedule, SOON_DURATION_IN_MS)) { |
| scheduleRecordingSoon(schedule); |
| } else { |
| needToUpdateAlarm = true; |
| } |
| } |
| } |
| if (needToUpdateAlarm) { |
| updateNextAlarm(); |
| } |
| } |
| |
| private void scheduleRecordingSoon(ScheduledRecording schedule) { |
| TvInputInfo input = Utils.getTvInputInfoForInputId(mContext, schedule.getInputId()); |
| if (input == null) { |
| Log.e(TAG, "Can't find input for " + schedule); |
| mDataManager.changeState(schedule, ScheduledRecording.STATE_RECORDING_FAILED); |
| return; |
| } |
| if (!input.canRecord() || input.getTunerCount() <= 0) { |
| Log.e(TAG, "TV input doesn't support recording: " + input); |
| mDataManager.changeState(schedule, ScheduledRecording.STATE_RECORDING_FAILED); |
| return; |
| } |
| InputTaskScheduler scheduler = mInputSchedulerMap.get(input.getId()); |
| if (scheduler == null) { |
| scheduler = new InputTaskScheduler(mContext, input, mLooper, mChannelDataManager, |
| mDvrManager, mDataManager, mSessionManager, mClock); |
| mInputSchedulerMap.put(input.getId(), scheduler); |
| } |
| scheduler.addSchedule(schedule); |
| if (mLastStartTimePendingMs < schedule.getStartTimeMs()) { |
| mLastStartTimePendingMs = schedule.getStartTimeMs(); |
| } |
| } |
| |
| private void updateNextAlarm() { |
| long nextStartTime = mDataManager.getNextScheduledStartTimeAfter( |
| Math.max(mLastStartTimePendingMs, mClock.currentTimeMillis())); |
| if (nextStartTime != DvrDataManager.NEXT_START_TIME_NOT_FOUND) { |
| long wakeAt = nextStartTime - MS_TO_WAKE_BEFORE_START; |
| if (DEBUG) Log.d(TAG, "Set alarm to record at " + wakeAt); |
| Intent intent = new Intent(mContext, DvrStartRecordingReceiver.class); |
| PendingIntent alarmIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); |
| // This will cancel the previous alarm. |
| mAlarmManager.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, wakeAt, alarmIntent); |
| } else { |
| if (DEBUG) Log.d(TAG, "No future recording, alarm not set"); |
| } |
| } |
| |
| @VisibleForTesting |
| boolean startsWithin(ScheduledRecording scheduledRecording, long durationInMs) { |
| return mClock.currentTimeMillis() >= scheduledRecording.getStartTimeMs() - durationInMs; |
| } |
| |
| // No need to remove input task scheduler when the input is removed. If the input is removed |
| // temporarily, the scheduler should keep the non-started schedules. |
| @Override |
| public void onInputUpdated(String inputId) { |
| InputTaskScheduler scheduler = mInputSchedulerMap.get(inputId); |
| if (scheduler != null) { |
| scheduler.updateTvInputInfo(Utils.getTvInputInfoForInputId(mContext, inputId)); |
| } |
| } |
| |
| @Override |
| public void onTvInputInfoUpdated(TvInputInfo input) { |
| InputTaskScheduler scheduler = mInputSchedulerMap.get(input.getId()); |
| if (scheduler != null) { |
| scheduler.updateTvInputInfo(input); |
| } |
| } |
| } |