com.google.android.exoplayer2.scheduler.Requirements Java Examples

private void onRequirementsStateChanged(
    RequirementsWatcher requirementsWatcher,
    @Requirements.RequirementFlags int notMetRequirements) {
  Requirements requirements = requirementsWatcher.getRequirements();
  for (Listener listener : listeners) {
    listener.onRequirementsStateChanged(this, requirements, notMetRequirements);
  }
  if (this.notMetRequirements == notMetRequirements) {
    return;
  }
  this.notMetRequirements = notMetRequirements;
  pendingMessages++;
  internalHandler
      .obtainMessage(MSG_SET_NOT_MET_REQUIREMENTS, notMetRequirements, /* unused */ 0)
      .sendToTarget();
}
 

@Override
public void onRequirementsStateChanged(
    DownloadManager downloadManager,
    Requirements requirements,
    @Requirements.RequirementFlags int notMetRequirements) {
  boolean requirementsMet = notMetRequirements == 0;
  if (downloadService == null && requirementsMet) {
    try {
      Intent intent = getIntent(context, serviceClass, DownloadService.ACTION_INIT);
      context.startService(intent);
    } catch (IllegalStateException e) {
      /* startService fails if the app is in the background then don't stop the scheduler. */
      return;
    }
  }
  if (scheduler != null) {
    setSchedulerEnabled(/* enabled= */ !requirementsMet, requirements);
  }
}
 

private void onRequirementsStateChanged(
    RequirementsWatcher requirementsWatcher,
    @Requirements.RequirementFlags int notMetRequirements) {
  Requirements requirements = requirementsWatcher.getRequirements();
  for (Listener listener : listeners) {
    listener.onRequirementsStateChanged(this, requirements, notMetRequirements);
  }
  if (this.notMetRequirements == notMetRequirements) {
    return;
  }
  this.notMetRequirements = notMetRequirements;
  pendingMessages++;
  internalHandler
      .obtainMessage(MSG_SET_NOT_MET_REQUIREMENTS, notMetRequirements, /* unused */ 0)
      .sendToTarget();
}
 

private void onRequirementsStateChanged(
    RequirementsWatcher requirementsWatcher,
    @Requirements.RequirementFlags int notMetRequirements) {
  Requirements requirements = requirementsWatcher.getRequirements();
  for (Listener listener : listeners) {
    listener.onRequirementsStateChanged(this, requirements, notMetRequirements);
  }
  if (this.notMetRequirements == notMetRequirements) {
    return;
  }
  this.notMetRequirements = notMetRequirements;
  pendingMessages++;
  internalHandler
      .obtainMessage(MSG_SET_NOT_MET_REQUIREMENTS, notMetRequirements, /* unused */ 0)
      .sendToTarget();
}
 

@Override
public void onRequirementsStateChanged(
    DownloadManager downloadManager,
    Requirements requirements,
    @Requirements.RequirementFlags int notMetRequirements) {
  boolean requirementsMet = notMetRequirements == 0;
  if (downloadService == null && requirementsMet) {
    try {
      Intent intent = getIntent(context, serviceClass, DownloadService.ACTION_INIT);
      context.startService(intent);
    } catch (IllegalStateException e) {
      /* startService fails if the app is in the background then don't stop the scheduler. */
      return;
    }
  }
  if (scheduler != null) {
    setSchedulerEnabled(/* enabled= */ !requirementsMet, requirements);
  }
}
 

@Override
public void onRequirementsStateChanged(
    DownloadManager downloadManager,
    Requirements requirements,
    @Requirements.RequirementFlags int notMetRequirements) {
  boolean requirementsMet = notMetRequirements == 0;
  if (downloadService == null && requirementsMet) {
    try {
      Intent intent = getIntent(context, serviceClass, DownloadService.ACTION_INIT);
      context.startService(intent);
    } catch (IllegalStateException e) {
      /* startService fails if the app is in the background then don't stop the scheduler. */
      return;
    }
  }
  if (scheduler != null) {
    setSchedulerEnabled(scheduler, /* enabled= */ !requirementsMet, requirements);
  }
}
 

private DownloadManagerHelper(
    Context context,
    DownloadManager downloadManager,
    @Nullable Scheduler scheduler,
    Class<? extends DownloadService> serviceClass) {
  this.context = context;
  this.downloadManager = downloadManager;
  this.scheduler = scheduler;
  this.serviceClass = serviceClass;
  downloadManager.addListener(this);
  if (scheduler != null) {
    Requirements requirements = downloadManager.getRequirements();
    setSchedulerEnabled(
        scheduler, /* enabled= */ !requirements.checkRequirements(context), requirements);
  }
}
 

private void setSchedulerEnabled(boolean enabled, Requirements requirements) {
  if (!enabled) {
    scheduler.cancel();
  } else {
    String servicePackage = context.getPackageName();
    boolean success = scheduler.schedule(requirements, servicePackage, ACTION_RESTART);
    if (!success) {
      Log.e(TAG, "Scheduling downloads failed.");
    }
  }
}
 

private void setSchedulerEnabled(
    Scheduler scheduler, boolean enabled, Requirements requirements) {
  if (!enabled) {
    scheduler.cancel();
  } else {
    String servicePackage = context.getPackageName();
    boolean success = scheduler.schedule(requirements, servicePackage, ACTION_RESTART);
    if (!success) {
      Log.e(TAG, "Scheduling downloads failed.");
    }
  }
}
 

private DownloadManagerHelper(
    Context context,
    DownloadManager downloadManager,
    @Nullable Scheduler scheduler,
    Class<? extends DownloadService> serviceClass) {
  this.context = context;
  this.downloadManager = downloadManager;
  this.scheduler = scheduler;
  this.serviceClass = serviceClass;
  downloadManager.addListener(this);
  if (scheduler != null) {
    Requirements requirements = downloadManager.getRequirements();
    setSchedulerEnabled(/* enabled= */ !requirements.checkRequirements(context), requirements);
  }
}
 

private void maybeStartWatchingRequirements(Requirements requirements) {
  if (downloadManager.getDownloadCount() == 0) {
    return;
  }
  Class<? extends DownloadService> clazz = getClass();
  RequirementsHelper requirementsHelper = requirementsHelpers.get(clazz);
  if (requirementsHelper == null) {
    requirementsHelper = new RequirementsHelper(this, requirements, getScheduler(), clazz);
    requirementsHelpers.put(clazz, requirementsHelper);
    requirementsHelper.start();
    logd("started watching requirements");
  }
}
 

private RequirementsHelper(
    Context context,
    Requirements requirements,
    @Nullable Scheduler scheduler,
    Class<? extends DownloadService> serviceClass) {
  this.context = context;
  this.requirements = requirements;
  this.scheduler = scheduler;
  this.serviceClass = serviceClass;
  requirementsWatcher = new RequirementsWatcher(context, this, requirements);
}
 

private void maybeStartWatchingRequirements(Requirements requirements) {
  if (downloadManager.getDownloadCount() == 0) {
    return;
  }
  Class<? extends DownloadService> clazz = getClass();
  RequirementsHelper requirementsHelper = requirementsHelpers.get(clazz);
  if (requirementsHelper == null) {
    requirementsHelper = new RequirementsHelper(this, requirements, getScheduler(), clazz);
    requirementsHelpers.put(clazz, requirementsHelper);
    requirementsHelper.start();
    logd("started watching requirements");
  }
}
 

private RequirementsHelper(
    Context context,
    Requirements requirements,
    @Nullable Scheduler scheduler,
    Class<? extends DownloadService> serviceClass) {
  this.context = context;
  this.requirements = requirements;
  this.scheduler = scheduler;
  this.serviceClass = serviceClass;
  requirementsWatcher = new RequirementsWatcher(context, this, requirements);
}
 

private void setSchedulerEnabled(boolean enabled, Requirements requirements) {
  if (!enabled) {
    scheduler.cancel();
  } else {
    String servicePackage = context.getPackageName();
    boolean success = scheduler.schedule(requirements, servicePackage, ACTION_RESTART);
    if (!success) {
      Log.e(TAG, "Scheduling downloads failed.");
    }
  }
}
 

private DownloadManagerHelper(
    Context context,
    DownloadManager downloadManager,
    @Nullable Scheduler scheduler,
    Class<? extends DownloadService> serviceClass) {
  this.context = context;
  this.downloadManager = downloadManager;
  this.scheduler = scheduler;
  this.serviceClass = serviceClass;
  downloadManager.addListener(this);
  if (scheduler != null) {
    Requirements requirements = downloadManager.getRequirements();
    setSchedulerEnabled(/* enabled= */ !requirements.checkRequirements(context), requirements);
  }
}
 

/** Returns the requirements needed to be met to progress. */
public Requirements getRequirements() {
  return requirementsWatcher.getRequirements();
}
 

private void setNotMetRequirements(@Requirements.RequirementFlags int notMetRequirements) {
  this.notMetRequirements = notMetRequirements;
  syncTasks();
}
 

/** Returns the requirements needed to be met to progress. */
public Requirements getRequirements() {
  return requirementsWatcher.getRequirements();
}
 

private void setNotMetRequirements(@Requirements.RequirementFlags int notMetRequirements) {
  this.notMetRequirements = notMetRequirements;
  syncTasks();
}
 

private void setNotMetRequirements(@Requirements.RequirementFlags int notMetRequirements) {
  this.notMetRequirements = notMetRequirements;
  syncTasks();
}
 

/** Returns the requirements needed to be met to progress. */
public Requirements getRequirements() {
  return requirementsWatcher.getRequirements();
}
 

/**
 * Starts the service if not started already and sets the requirements that need to be met for
 * downloads to progress.
 *
 * @param context A {@link Context}.
 * @param clazz The concrete download service to be started.
 * @param requirements A {@link Requirements}.
 * @param foreground Whether the service is started in the foreground.
 */
public static void sendSetRequirements(
    Context context,
    Class<? extends DownloadService> clazz,
    Requirements requirements,
    boolean foreground) {
  Intent intent = buildSetRequirementsIntent(context, clazz, requirements, foreground);
  startService(context, intent, foreground);
}
 

/**
 * Builds an {@link Intent} for setting the requirements that need to be met for downloads to
 * progress.
 *
 * @param context A {@link Context}.
 * @param clazz The concrete download service being targeted by the intent.
 * @param requirements A {@link Requirements}.
 * @param foreground Whether this intent will be used to start the service in the foreground.
 * @return The created intent.
 */
public static Intent buildSetRequirementsIntent(
    Context context,
    Class<? extends DownloadService> clazz,
    Requirements requirements,
    boolean foreground) {
  return getIntent(context, clazz, ACTION_SET_REQUIREMENTS, foreground)
      .putExtra(KEY_REQUIREMENTS, requirements);
}
 

/**
 * Builds an {@link Intent} for setting the requirements that need to be met for downloads to
 * progress.
 *
 * @param context A {@link Context}.
 * @param clazz The concrete download service being targeted by the intent.
 * @param requirements A {@link Requirements}.
 * @param foreground Whether this intent will be used to start the service in the foreground.
 * @return The created intent.
 */
public static Intent buildSetRequirementsIntent(
    Context context,
    Class<? extends DownloadService> clazz,
    Requirements requirements,
    boolean foreground) {
  return getIntent(context, clazz, ACTION_SET_REQUIREMENTS, foreground)
      .putExtra(KEY_REQUIREMENTS, requirements);
}
 

/**
 * Starts the service if not started already and sets the requirements that need to be met for
 * downloads to progress.
 *
 * @param context A {@link Context}.
 * @param clazz The concrete download service to be started.
 * @param requirements A {@link Requirements}.
 * @param foreground Whether the service is started in the foreground.
 */
public static void sendSetRequirements(
    Context context,
    Class<? extends DownloadService> clazz,
    Requirements requirements,
    boolean foreground) {
  Intent intent = buildSetRequirementsIntent(context, clazz, requirements, foreground);
  startService(context, intent, foreground);
}
 

/**
 * Starts the service if not started already and sets the requirements that need to be met for
 * downloads to progress.
 *
 * @param context A {@link Context}.
 * @param clazz The concrete download service to be started.
 * @param requirements A {@link Requirements}.
 * @param foreground Whether the service is started in the foreground.
 */
public static void sendSetRequirements(
    Context context,
    Class<? extends DownloadService> clazz,
    Requirements requirements,
    boolean foreground) {
  Intent intent = buildSetRequirementsIntent(context, clazz, requirements, foreground);
  startService(context, intent, foreground);
}
 

/**
 * Builds an {@link Intent} for setting the requirements that need to be met for downloads to
 * progress.
 *
 * @param context A {@link Context}.
 * @param clazz The concrete download service being targeted by the intent.
 * @param requirements A {@link Requirements}.
 * @param foreground Whether this intent will be used to start the service in the foreground.
 * @return The created intent.
 */
public static Intent buildSetRequirementsIntent(
    Context context,
    Class<? extends DownloadService> clazz,
    Requirements requirements,
    boolean foreground) {
  return getIntent(context, clazz, ACTION_SET_REQUIREMENTS, foreground)
      .putExtra(KEY_REQUIREMENTS, requirements);
}
 

/**
 * Called when the download requirements state changed.
 *
 * @param downloadManager The reporting instance.
 * @param requirements Requirements needed to be met to start downloads.
 * @param notMetRequirements {@link Requirements.RequirementFlags RequirementFlags} that are not
 *     met, or 0.
 */
default void onRequirementsStateChanged(
    DownloadManager downloadManager,
    Requirements requirements,
    @Requirements.RequirementFlags int notMetRequirements) {}
 

/**
 * Returns the requirements needed for downloads to progress that are not currently met.
 *
 * @return The not met {@link Requirements.RequirementFlags}, or 0 if all requirements are met.
 */
@Requirements.RequirementFlags
public int getNotMetRequirements() {
  return getRequirements().getNotMetRequirements(context);
}