import com.google.ipc.invalidation.ticl.android.c2dm.WakeLockManager; //导入依赖的package包/类
@Override
public final void onReceive(Context context, Intent intent) {
  // This method is final to prevent subclasses from overriding it and introducing errors in
  // the wakelock protocol.
  Class<?> serviceClass = getServiceClass();

  // If the service isn't an AbstractListener subclass, then it will not release the wakelock
  // properly, causing bugs.
  if (!AbstractListener.class.isAssignableFrom(serviceClass)) {
    throw new RuntimeException(
        "Service class is not a subclass of AbstractListener: " + serviceClass);
  }
  String wakelockKey = getWakelockKey(serviceClass);
  intent.setClass(context, serviceClass);

  // To avoid insidious bugs, tell the service which wakelock we acquired. The service will
  // log a warning if the lock it releases is not this lock.
  intent.putExtra(EXTRA_WAKELOCK_NAME, wakelockKey);

  // Acquire the lock and start the service. The service is responsible for releasing the
  // lock.
  WakeLockManager.getInstance(context).acquire(wakelockKey, WAKELOCK_TIMEOUT_MS);
  context.startService(intent);
}
 

import com.google.ipc.invalidation.ticl.android.c2dm.WakeLockManager; //导入依赖的package包/类
@Override
public final void onHandleIntent(Intent intent) {
  if (intent == null) {
    return;
  }

  // This method is final to prevent subclasses from overriding it and introducing errors in
  // the wakelock protocol.
  try {
    doHandleIntent(intent);
  } finally {
    // Release the wakelock acquired by the receiver. The receiver provides the name of the
    // lock it acquired in the Intent so that we can sanity-check that we are releasing the
    // right lock.
    String receiverAcquiredWakelock = intent.getStringExtra(EXTRA_WAKELOCK_NAME);
    String wakelockToRelease = getWakelockKey(getClass());
    if (!wakelockToRelease.equals(receiverAcquiredWakelock)) {
      logger.warning("Receiver acquired wakelock '%s' but releasing '%s'",
          receiverAcquiredWakelock, wakelockToRelease);
    }
    WakeLockManager wakelockManager = WakeLockManager.getInstance(this);
    wakelockManager.release(wakelockToRelease);
  }
}