Android/frameworks_base
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge "Zen: Pull next-alarm tracking out into separate helper." into lmp-mr1-dev

Browse Source
This commit is contained in:
John Spurlock
2014-11-10 19:24:14 +00:00
committed by Android (Google) Code Review
parent 6c912b7d05 6b0623a112
commit 7936ca36d9
4 changed files with 341 additions and 206 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
services/core/java/com/android/server/notification/ConditionProviders.java
View File

@@ -51,6 +51,7 @@ public class ConditionProviders extends ManagedServices {
= new ArrayMap<IBinder, IConditionListener>();
private final ArrayList<ConditionRecord> mRecords = new ArrayList<ConditionRecord>();
private final CountdownConditionProvider mCountdown = new CountdownConditionProvider();
private final NextAlarmTracker mNextAlarmTracker;
private final DowntimeConditionProvider mDowntime = new DowntimeConditionProvider();
private final NextAlarmConditionProvider mNextAlarm = new NextAlarmConditionProvider();
@@ -63,6 +64,7 @@ public class ConditionProviders extends ManagedServices {
mZenModeHelper = zenModeHelper;
mZenModeHelper.addCallback(new ZenModeHelperCallback());
loadZenConfig();
mNextAlarmTracker = new NextAlarmTracker(context);
}
@Override
@@ -101,6 +103,7 @@ public class ConditionProviders extends ManagedServices {
mCountdown.dump(pw, filter);
mDowntime.dump(pw, filter);
mNextAlarm.dump(pw, filter);
mNextAlarmTracker.dump(pw, filter);
}
@Override
@@ -111,6 +114,7 @@ public class ConditionProviders extends ManagedServices {
@Override
public void onBootPhaseAppsCanStart() {
super.onBootPhaseAppsCanStart();
mNextAlarmTracker.init();
mCountdown.attachBase(mContext);
registerService(mCountdown.asInterface(), CountdownConditionProvider.COMPONENT,
UserHandle.USER_OWNER);
@@ -121,20 +125,13 @@ public class ConditionProviders extends ManagedServices {
mNextAlarm.attachBase(mContext);
registerService(mNextAlarm.asInterface(), NextAlarmConditionProvider.COMPONENT,
UserHandle.USER_OWNER);
mNextAlarm.setCallback(new NextAlarmConditionProvider.Callback() {
@Override
public boolean isInDowntime() {
return mDowntime.isInDowntime();
}
});
mNextAlarm.setCallback(new NextAlarmCallback());
}
@Override
public void onUserSwitched() {
super.onUserSwitched();
if (mNextAlarm != null) {
mNextAlarm.onUserSwitched();
}
mNextAlarmTracker.onUserSwitched();
}
@Override
@@ -572,6 +569,23 @@ public class ConditionProviders extends ManagedServices {
mZenModeHelper.setZenMode(Global.ZEN_MODE_OFF, "downtimeExit");
}
}
@Override
public NextAlarmTracker getNextAlarmTracker() {
return mNextAlarmTracker;
}
}
private class NextAlarmCallback implements NextAlarmConditionProvider.Callback {
@Override
public boolean isInDowntime() {
return mDowntime.isInDowntime();
}
@Override
public NextAlarmTracker getNextAlarmTracker() {
return mNextAlarmTracker;
}
}
private static class ConditionRecord {

1
services/core/java/com/android/server/notification/DowntimeConditionProvider.java
View File

@@ -298,5 +298,6 @@ public class DowntimeConditionProvider extends ConditionProviderService {
public interface Callback {
void onDowntimeChanged(int downtimeMode);
NextAlarmTracker getNextAlarmTracker();
}
}

251
services/core/java/com/android/server/notification/NextAlarmConditionProvider.java
View File

@@ -16,34 +16,23 @@
package com.android.server.notification;
import android.app.ActivityManager;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.app.AlarmManager.AlarmClockInfo;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.Uri;
import android.os.Handler;
import android.os.Message;
import android.os.PowerManager;
import android.os.UserHandle;
import android.service.notification.Condition;
import android.service.notification.ConditionProviderService;
import android.service.notification.IConditionProvider;
import android.service.notification.ZenModeConfig;
import android.util.TimeUtils;
import android.text.format.DateFormat;
import android.util.Log;
import android.util.Slog;
import android.util.TimeUtils;
import com.android.internal.R;
import com.android.server.notification.NotificationManagerService.DumpFilter;
import java.io.PrintWriter;
import java.util.Locale;
/**
* Built-in zen condition provider for alarm-clock-based conditions.
@@ -62,33 +51,21 @@ public class NextAlarmConditionProvider extends ConditionProviderService {
private static final String TAG = "NextAlarmConditions";
private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
private static final String ACTION_TRIGGER = TAG + ".trigger";
private static final String EXTRA_TRIGGER = "trigger";
private static final int REQUEST_CODE = 100;
private static final long SECONDS = 1000;
private static final long MINUTES = 60 * SECONDS;
private static final long HOURS = 60 * MINUTES;
private static final long NEXT_ALARM_UPDATE_DELAY = 1 * SECONDS; // treat clear+set as update
private static final long EARLY = 5 * SECONDS; // fire early, ensure alarm stream is unmuted
private static final long WAIT_AFTER_CONNECT = 5 * MINUTES;// for initial alarm re-registration
private static final long WAIT_AFTER_BOOT = 20 * SECONDS; // for initial alarm re-registration
private static final String NEXT_ALARM_PATH = "next_alarm";
public static final ComponentName COMPONENT =
new ComponentName("android", NextAlarmConditionProvider.class.getName());
private final Context mContext = this;
private final H mHandler = new H();
private long mConnected;
private boolean mRegistered;
private AlarmManager mAlarmManager;
private int mCurrentUserId;
private NextAlarmTracker mTracker;
private boolean mConnected;
private long mLookaheadThreshold;
private long mScheduledAlarmTime;
private Callback mCallback;
private Uri mCurrentSubscription;
private PowerManager.WakeLock mWakeLock;
private long mBootCompleted;
public NextAlarmConditionProvider() {
if (DEBUG) Slog.d(TAG, "new NextAlarmConditionProvider()");
@@ -97,14 +74,9 @@ public class NextAlarmConditionProvider extends ConditionProviderService {
public void dump(PrintWriter pw, DumpFilter filter) {
pw.println(" NextAlarmConditionProvider:");
pw.print(" mConnected="); pw.println(mConnected);
pw.print(" mBootCompleted="); pw.println(mBootCompleted);
pw.print(" mRegistered="); pw.println(mRegistered);
pw.print(" mCurrentUserId="); pw.println(mCurrentUserId);
pw.print(" mScheduledAlarmTime="); pw.println(formatAlarmDebug(mScheduledAlarmTime));
pw.print(" mLookaheadThreshold="); pw.print(mLookaheadThreshold);
pw.print(" ("); TimeUtils.formatDuration(mLookaheadThreshold, pw); pw.println(")");
pw.print(" mCurrentSubscription="); pw.println(mCurrentSubscription);
pw.print(" mWakeLock="); pw.println(mWakeLock);
}
public void setCallback(Callback callback) {
@@ -114,38 +86,26 @@ public class NextAlarmConditionProvider extends ConditionProviderService {
@Override
public void onConnected() {
if (DEBUG) Slog.d(TAG, "onConnected");
mAlarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);
final PowerManager p = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
mWakeLock = p.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG);
mLookaheadThreshold = mContext.getResources()
.getInteger(R.integer.config_next_alarm_condition_lookahead_threshold_hrs) * HOURS;
init();
mConnected = System.currentTimeMillis();
}
public void onUserSwitched() {
if (DEBUG) Slog.d(TAG, "onUserSwitched");
if (mConnected != 0) {
init();
}
mConnected = true;
mTracker = mCallback.getNextAlarmTracker();
mTracker.addCallback(mTrackerCallback);
}
@Override
public void onDestroy() {
super.onDestroy();
if (DEBUG) Slog.d(TAG, "onDestroy");
if (mRegistered) {
mContext.unregisterReceiver(mReceiver);
mRegistered = false;
}
mConnected = 0;
mTracker.removeCallback(mTrackerCallback);
mConnected = false;
}
@Override
public void onRequestConditions(int relevance) {
if (mConnected == 0 || (relevance & Condition.FLAG_RELEVANT_NOW) == 0) return;
if (!mConnected || (relevance & Condition.FLAG_RELEVANT_NOW) == 0) return;
final AlarmClockInfo nextAlarm = mAlarmManager.getNextAlarmClock(mCurrentUserId);
final AlarmClockInfo nextAlarm = mTracker.getNextAlarm();
if (nextAlarm == null) return; // no next alarm
if (mCallback != null && mCallback.isInDowntime()) return; // prefer downtime condition
if (!isWithinLookaheadThreshold(nextAlarm)) return; // alarm not within window
@@ -154,12 +114,6 @@ public class NextAlarmConditionProvider extends ConditionProviderService {
notifyCondition(newConditionId(), nextAlarm, Condition.STATE_TRUE, "request");
}
private boolean isWithinLookaheadThreshold(AlarmClockInfo alarm) {
if (alarm == null) return false;
final long delta = getEarlyTriggerTime(alarm) - System.currentTimeMillis();
return delta > 0 && (mLookaheadThreshold <= 0 || delta < mLookaheadThreshold);
}
@Override
public void onSubscribe(Uri conditionId) {
if (DEBUG) Slog.d(TAG, "onSubscribe " + conditionId);
@@ -168,79 +122,7 @@ public class NextAlarmConditionProvider extends ConditionProviderService {
return;
}
mCurrentSubscription = conditionId;
mHandler.postEvaluate(0);
}
private static long getEarlyTriggerTime(AlarmClockInfo alarm) {
return alarm != null ? (alarm.getTriggerTime() - EARLY) : 0;
}
private boolean isDoneWaitingAfterBoot(long time) {
if (mBootCompleted > 0) return (time - mBootCompleted) > WAIT_AFTER_BOOT;
if (mConnected > 0) return (time - mConnected) > WAIT_AFTER_CONNECT;
return true;
}
private void handleEvaluate() {
final AlarmClockInfo nextAlarm = mAlarmManager.getNextAlarmClock(mCurrentUserId);
final long triggerTime = getEarlyTriggerTime(nextAlarm);
final boolean withinThreshold = isWithinLookaheadThreshold(nextAlarm);
final long now = System.currentTimeMillis();
final boolean booted = isDoneWaitingAfterBoot(now);
if (DEBUG) Slog.d(TAG, "handleEvaluate mCurrentSubscription=" + mCurrentSubscription
+ " nextAlarm=" + formatAlarmDebug(triggerTime)
+ " withinThreshold=" + withinThreshold
+ " booted=" + booted);
if (mCurrentSubscription == null) return; // no one cares
if (!booted) {
// we don't know yet
notifyCondition(mCurrentSubscription, nextAlarm, Condition.STATE_UNKNOWN, "!booted");
final long recheckTime = (mBootCompleted > 0 ? mBootCompleted : now) + WAIT_AFTER_BOOT;
rescheduleAlarm(recheckTime);
return;
}
if (!withinThreshold) {
// triggertime invalid or in the past, condition = false
notifyCondition(mCurrentSubscription, nextAlarm, Condition.STATE_FALSE, "!within");
mCurrentSubscription = null;
return;
}
// triggertime in the future, condition = true, schedule alarm
notifyCondition(mCurrentSubscription, nextAlarm, Condition.STATE_TRUE, "within");
rescheduleAlarm(triggerTime);
}
private static String formatDuration(long millis) {
final StringBuilder sb = new StringBuilder();
TimeUtils.formatDuration(millis, sb);
return sb.toString();
}
private void rescheduleAlarm(long time) {
if (DEBUG) Slog.d(TAG, "rescheduleAlarm " + time);
final AlarmManager alarms = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);
final PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, REQUEST_CODE,
new Intent(ACTION_TRIGGER)
.addFlags(Intent.FLAG_RECEIVER_FOREGROUND)
.putExtra(EXTRA_TRIGGER, time),
PendingIntent.FLAG_UPDATE_CURRENT);
alarms.cancel(pendingIntent);
mScheduledAlarmTime = time;
if (time > 0) {
if (DEBUG) Slog.d(TAG, String.format("Scheduling alarm for %s (in %s)",
formatAlarmDebug(time), formatDuration(time - System.currentTimeMillis())));
alarms.setExact(AlarmManager.RTC_WAKEUP, time, pendingIntent);
}
}
private void notifyCondition(Uri id, AlarmClockInfo alarm, int state, String reason) {
final String formattedAlarm = alarm == null ? "" : formatAlarm(alarm.getTriggerTime());
if (DEBUG) Slog.d(TAG, "notifyCondition " + Condition.stateToString(state)
+ " alarm=" + formattedAlarm + " reason=" + reason);
notifyCondition(new Condition(id,
mContext.getString(R.string.zen_mode_next_alarm_summary, formattedAlarm),
mContext.getString(R.string.zen_mode_next_alarm_line_one),
formattedAlarm, 0, state, Condition.FLAG_RELEVANT_NOW));
mTracker.evaluate();
}
@Override
@@ -248,7 +130,6 @@ public class NextAlarmConditionProvider extends ConditionProviderService {
if (DEBUG) Slog.d(TAG, "onUnsubscribe " + conditionId);
if (conditionId != null && conditionId.equals(mCurrentSubscription)) {
mCurrentSubscription = null;
rescheduleAlarm(0);
}
}
@@ -260,11 +141,27 @@ public class NextAlarmConditionProvider extends ConditionProviderService {
return (IConditionProvider) onBind(null);
}
private boolean isWithinLookaheadThreshold(AlarmClockInfo alarm) {
if (alarm == null) return false;
final long delta = NextAlarmTracker.getEarlyTriggerTime(alarm) - System.currentTimeMillis();
return delta > 0 && (mLookaheadThreshold <= 0 || delta < mLookaheadThreshold);
}
private void notifyCondition(Uri id, AlarmClockInfo alarm, int state, String reason) {
final String formattedAlarm = alarm == null ? "" : mTracker.formatAlarm(alarm);
if (DEBUG) Slog.d(TAG, "notifyCondition " + Condition.stateToString(state)
+ " alarm=" + formattedAlarm + " reason=" + reason);
notifyCondition(new Condition(id,
mContext.getString(R.string.zen_mode_next_alarm_summary, formattedAlarm),
mContext.getString(R.string.zen_mode_next_alarm_line_one),
formattedAlarm, 0, state, Condition.FLAG_RELEVANT_NOW));
}
private Uri newConditionId() {
return new Uri.Builder().scheme(Condition.SCHEME)
.authority(ZenModeConfig.SYSTEM_AUTHORITY)
.appendPath(NEXT_ALARM_PATH)
.appendPath(Integer.toString(mCurrentUserId))
.appendPath(Integer.toString(mTracker.getCurrentUserId()))
.build();
}
@@ -273,81 +170,41 @@ public class NextAlarmConditionProvider extends ConditionProviderService {
&& conditionId.getAuthority().equals(ZenModeConfig.SYSTEM_AUTHORITY)
&& conditionId.getPathSegments().size() == 2
&& conditionId.getPathSegments().get(0).equals(NEXT_ALARM_PATH)
&& conditionId.getPathSegments().get(1).equals(Integer.toString(mCurrentUserId));
&& conditionId.getPathSegments().get(1)
.equals(Integer.toString(mTracker.getCurrentUserId()));
}
private void init() {
if (mRegistered) {
mContext.unregisterReceiver(mReceiver);
private void onEvaluate(AlarmClockInfo nextAlarm, long wakeupTime, boolean booted) {
final boolean withinThreshold = isWithinLookaheadThreshold(nextAlarm);
if (DEBUG) Slog.d(TAG, "onEvaluate mCurrentSubscription=" + mCurrentSubscription
+ " nextAlarmWakeup=" + mTracker.formatAlarmDebug(wakeupTime)
+ " withinThreshold=" + withinThreshold
+ " booted=" + booted);
if (mCurrentSubscription == null) return; // no one cares
if (!booted) {
// we don't know yet
notifyCondition(mCurrentSubscription, nextAlarm, Condition.STATE_UNKNOWN, "!booted");
return;
}
mCurrentUserId = ActivityManager.getCurrentUser();
final IntentFilter filter = new IntentFilter();
filter.addAction(AlarmManager.ACTION_NEXT_ALARM_CLOCK_CHANGED);
filter.addAction(ACTION_TRIGGER);
filter.addAction(Intent.ACTION_TIME_CHANGED);
filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
filter.addAction(Intent.ACTION_BOOT_COMPLETED);
mContext.registerReceiverAsUser(mReceiver, new UserHandle(mCurrentUserId), filter, null,
null);
mRegistered = true;
mHandler.postEvaluate(0);
if (!withinThreshold) {
// next alarm outside threshold or in the past, condition = false
notifyCondition(mCurrentSubscription, nextAlarm, Condition.STATE_FALSE, "!within");
mCurrentSubscription = null;
return;
}
// next alarm in the future and within threshold, condition = true
notifyCondition(mCurrentSubscription, nextAlarm, Condition.STATE_TRUE, "within");
}
private String formatAlarm(long time) {
return formatAlarm(time, "Hm", "hma");
}
private String formatAlarm(long time, String skeleton24, String skeleton12) {
final String skeleton = DateFormat.is24HourFormat(mContext) ? skeleton24 : skeleton12;
final String pattern = DateFormat.getBestDateTimePattern(Locale.getDefault(), skeleton);
return DateFormat.format(pattern, time).toString();
}
private String formatAlarmDebug(AlarmClockInfo alarm) {
return formatAlarmDebug(alarm != null ? alarm.getTriggerTime() : 0);
}
private String formatAlarmDebug(long time) {
if (time <= 0) return Long.toString(time);
return String.format("%s (%s)", time, formatAlarm(time, "Hms", "hmsa"));
}
private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
private final NextAlarmTracker.Callback mTrackerCallback = new NextAlarmTracker.Callback() {
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (DEBUG) Slog.d(TAG, "onReceive " + action);
long delay = 0;
if (action.equals(AlarmManager.ACTION_NEXT_ALARM_CLOCK_CHANGED)) {
delay = NEXT_ALARM_UPDATE_DELAY;
if (DEBUG) Slog.d(TAG, String.format(" next alarm for user %s: %s",
mCurrentUserId,
formatAlarmDebug(mAlarmManager.getNextAlarmClock(mCurrentUserId))));
} else if (action.equals(Intent.ACTION_BOOT_COMPLETED)) {
mBootCompleted = System.currentTimeMillis();
}
mHandler.postEvaluate(delay);
mWakeLock.acquire(delay + 5000); // stay awake during evaluate
public void onEvaluate(AlarmClockInfo nextAlarm, long wakeupTime, boolean booted) {
NextAlarmConditionProvider.this.onEvaluate(nextAlarm, wakeupTime, booted);
}
};
public interface Callback {
boolean isInDowntime();
}
private class H extends Handler {
private static final int MSG_EVALUATE = 1;
public void postEvaluate(long delay) {
removeMessages(MSG_EVALUATE);
sendEmptyMessageDelayed(MSG_EVALUATE, delay);
}
@Override
public void handleMessage(Message msg) {
if (msg.what == MSG_EVALUATE) {
handleEvaluate();
}
}
NextAlarmTracker getNextAlarmTracker();
}
}

263
services/core/java/com/android/server/notification/NextAlarmTracker.java Normal file
View File

@@ -0,0 +1,263 @@
/*
* Copyright (C) 2014 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.notification;
import android.app.ActivityManager;
import android.app.AlarmManager;
import android.app.AlarmManager.AlarmClockInfo;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Handler;
import android.os.Message;
import android.os.PowerManager;
import android.os.UserHandle;
import android.text.format.DateFormat;
import android.util.Log;
import android.util.Slog;
import android.util.TimeUtils;
import com.android.server.notification.NotificationManagerService.DumpFilter;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Locale;
/** Helper for tracking updates to the current user's next alarm. */
public class NextAlarmTracker {
private static final String TAG = "NextAlarmTracker";
private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
private static final String ACTION_TRIGGER = TAG + ".trigger";
private static final String EXTRA_TRIGGER = "trigger";
private static final int REQUEST_CODE = 100;
private static final long SECONDS = 1000;
private static final long MINUTES = 60 * SECONDS;
private static final long NEXT_ALARM_UPDATE_DELAY = 1 * SECONDS; // treat clear+set as update
private static final long EARLY = 5 * SECONDS; // fire early, ensure alarm stream is unmuted
private static final long WAIT_AFTER_INIT = 5 * MINUTES;// for initial alarm re-registration
private static final long WAIT_AFTER_BOOT = 20 * SECONDS; // for initial alarm re-registration
private final Context mContext;
private final H mHandler = new H();
private final ArrayList<Callback> mCallbacks = new ArrayList<Callback>();
private long mInit;
private boolean mRegistered;
private AlarmManager mAlarmManager;
private int mCurrentUserId;
private long mScheduledAlarmTime;
private long mBootCompleted;
private PowerManager.WakeLock mWakeLock;
public NextAlarmTracker(Context context) {
mContext = context;
}
public void dump(PrintWriter pw, DumpFilter filter) {
pw.println(" NextAlarmTracker:");
pw.print(" len(mCallbacks)="); pw.println(mCallbacks.size());
pw.print(" mRegistered="); pw.println(mRegistered);
pw.print(" mInit="); pw.println(mInit);
pw.print(" mBootCompleted="); pw.println(mBootCompleted);
pw.print(" mCurrentUserId="); pw.println(mCurrentUserId);
pw.print(" mScheduledAlarmTime="); pw.println(formatAlarmDebug(mScheduledAlarmTime));
pw.print(" mWakeLock="); pw.println(mWakeLock);
}
public void addCallback(Callback callback) {
mCallbacks.add(callback);
}
public void removeCallback(Callback callback) {
mCallbacks.remove(callback);
}
public int getCurrentUserId() {
return mCurrentUserId;
}
public AlarmClockInfo getNextAlarm() {
return mAlarmManager.getNextAlarmClock(mCurrentUserId);
}
public void onUserSwitched() {
reset();
}
public void init() {
mAlarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);
final PowerManager p = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
mWakeLock = p.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG);
mInit = System.currentTimeMillis();
reset();
}
public void reset() {
if (mRegistered) {
mContext.unregisterReceiver(mReceiver);
}
mCurrentUserId = ActivityManager.getCurrentUser();
final IntentFilter filter = new IntentFilter();
filter.addAction(AlarmManager.ACTION_NEXT_ALARM_CLOCK_CHANGED);
filter.addAction(ACTION_TRIGGER);
filter.addAction(Intent.ACTION_TIME_CHANGED);
filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
filter.addAction(Intent.ACTION_BOOT_COMPLETED);
mContext.registerReceiverAsUser(mReceiver, new UserHandle(mCurrentUserId), filter, null,
null);
mRegistered = true;
evaluate();
}
public void destroy() {
if (mRegistered) {
mContext.unregisterReceiver(mReceiver);
mRegistered = false;
}
}
public void evaluate() {
mHandler.postEvaluate(0);
}
private void fireEvaluate(AlarmClockInfo nextAlarm, long wakeupTime, boolean booted) {
for (Callback callback : mCallbacks) {
callback.onEvaluate(nextAlarm, wakeupTime, booted);
}
}
private void handleEvaluate() {
final AlarmClockInfo nextAlarm = mAlarmManager.getNextAlarmClock(mCurrentUserId);
final long triggerTime = getEarlyTriggerTime(nextAlarm);
final long now = System.currentTimeMillis();
final boolean alarmUpcoming = triggerTime > now;
final boolean booted = isDoneWaitingAfterBoot(now);
if (DEBUG) Slog.d(TAG, "handleEvaluate nextAlarm=" + formatAlarmDebug(triggerTime)
+ " alarmUpcoming=" + alarmUpcoming
+ " booted=" + booted);
fireEvaluate(nextAlarm, triggerTime, booted);
if (!booted) {
// recheck after boot
final long recheckTime = (mBootCompleted > 0 ? mBootCompleted : now) + WAIT_AFTER_BOOT;
rescheduleAlarm(recheckTime);
return;
}
if (alarmUpcoming) {
// wake up just before the next alarm
rescheduleAlarm(triggerTime);
}
}
public static long getEarlyTriggerTime(AlarmClockInfo alarm) {
return alarm != null ? (alarm.getTriggerTime() - EARLY) : 0;
}
private boolean isDoneWaitingAfterBoot(long time) {
if (mBootCompleted > 0) return (time - mBootCompleted) > WAIT_AFTER_BOOT;
if (mInit > 0) return (time - mInit) > WAIT_AFTER_INIT;
return true;
}
private static String formatDuration(long millis) {
final StringBuilder sb = new StringBuilder();
TimeUtils.formatDuration(millis, sb);
return sb.toString();
}
public String formatAlarm(AlarmClockInfo alarm) {
return alarm != null ? formatAlarm(alarm.getTriggerTime()) : null;
}
private String formatAlarm(long time) {
return formatAlarm(time, "Hm", "hma");
}
private String formatAlarm(long time, String skeleton24, String skeleton12) {
final String skeleton = DateFormat.is24HourFormat(mContext) ? skeleton24 : skeleton12;
final String pattern = DateFormat.getBestDateTimePattern(Locale.getDefault(), skeleton);
return DateFormat.format(pattern, time).toString();
}
private String formatAlarmDebug(AlarmClockInfo alarm) {
return formatAlarmDebug(alarm != null ? alarm.getTriggerTime() : 0);
}
public String formatAlarmDebug(long time) {
if (time <= 0) return Long.toString(time);
return String.format("%s (%s)", time, formatAlarm(time, "Hms", "hmsa"));
}
private void rescheduleAlarm(long time) {
if (DEBUG) Slog.d(TAG, "rescheduleAlarm " + time);
final AlarmManager alarms = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);
final PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, REQUEST_CODE,
new Intent(ACTION_TRIGGER)
.addFlags(Intent.FLAG_RECEIVER_FOREGROUND)
.putExtra(EXTRA_TRIGGER, time),
PendingIntent.FLAG_UPDATE_CURRENT);
alarms.cancel(pendingIntent);
mScheduledAlarmTime = time;
if (time > 0) {
if (DEBUG) Slog.d(TAG, String.format("Scheduling alarm for %s (in %s)",
formatAlarmDebug(time), formatDuration(time - System.currentTimeMillis())));
alarms.setExact(AlarmManager.RTC_WAKEUP, time, pendingIntent);
}
}
private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (DEBUG) Slog.d(TAG, "onReceive " + action);
long delay = 0;
if (action.equals(AlarmManager.ACTION_NEXT_ALARM_CLOCK_CHANGED)) {
delay = NEXT_ALARM_UPDATE_DELAY;
if (DEBUG) Slog.d(TAG, String.format(" next alarm for user %s: %s",
mCurrentUserId,
formatAlarmDebug(mAlarmManager.getNextAlarmClock(mCurrentUserId))));
} else if (action.equals(Intent.ACTION_BOOT_COMPLETED)) {
mBootCompleted = System.currentTimeMillis();
}
mHandler.postEvaluate(delay);
mWakeLock.acquire(delay + 5000); // stay awake during evaluate
}
};
private class H extends Handler {
private static final int MSG_EVALUATE = 1;
public void postEvaluate(long delay) {
removeMessages(MSG_EVALUATE);
sendEmptyMessageDelayed(MSG_EVALUATE, delay);
}
@Override
public void handleMessage(Message msg) {
if (msg.what == MSG_EVALUATE) {
handleEvaluate();
}
}
}
public interface Callback {
void onEvaluate(AlarmClockInfo nextAlarm, long wakeupTime, boolean booted);
}
}