Package com.linkedin.helix

Examples of com.linkedin.helix.NotificationContext

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  @Override
  public void addIdealStateChangeListener(IdealStateChangeListener listener)
  {

    NotificationContext context = new NotificationContext(this);
    context.setType(NotificationContext.Type.INIT);
    List<ZNRecord> idealStates = _clusterView.getPropertyList(PropertyType.IDEALSTATES);
    listener.onIdealStateChange(
        HelixProperty.convertToTypedList(IdealState.class, idealStates), context);
  }
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  }

  @Override
  public void addMessageListener(MessageListener listener, String instanceName)
  {
    NotificationContext context = new NotificationContext(this);
    context.setType(NotificationContext.Type.INIT);
    List<ZNRecord> messages;
    messages = _clusterView.getMemberInstance(instanceName, true).getInstanceProperty(
        PropertyType.MESSAGES);
    listener.onMessage(instanceName, HelixProperty.convertToTypedList(Message.class, messages),
        context);
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  public void init()
  {
    updateNotificationTime(System.nanoTime());
    try
    {
      NotificationContext changeContext = new NotificationContext(_manager);
      changeContext.setType(NotificationContext.Type.INIT);
      invoke(changeContext);
    } catch (Exception e)
    {
      // TODO handle exception
      LOG.error("fail to init", e);
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  public void reset()
  {
    try
    {
      NotificationContext changeContext = new NotificationContext(_manager);
      changeContext.setType(NotificationContext.Type.FINALIZE);
      invoke(changeContext);
    } catch (Exception e)
    {
      // TODO handle exception
      LOG.error("fail to reset" + "\nexception:" + e);
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        // System.err.println("notified on property change, key:" + key +
        // ", path:" +
        // path);

        updateNotificationTime(System.nanoTime());
        NotificationContext changeContext = new NotificationContext(_manager);
        changeContext.setType(NotificationContext.Type.CALLBACK);
        invoke(changeContext);
      }
    } catch (Exception e)
    {
      // TODO handle exception
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  public void init()
  {
    updateNotificationTime(System.nanoTime());
    try
    {
      NotificationContext changeContext = new NotificationContext(_manager);
      changeContext.setType(NotificationContext.Type.INIT);
      invoke(changeContext);
    }
    catch (Exception e)
    {
      ZKExceptionHandler.getInstance().handle(e);
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    try
    {
      updateNotificationTime(System.nanoTime());
      if (dataPath != null && dataPath.startsWith(_path))
      {
        NotificationContext changeContext = new NotificationContext(_manager);
        changeContext.setType(NotificationContext.Type.CALLBACK);
        invoke(changeContext);
      }
    }
    catch (Exception e)
    {
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    try
    {
      updateNotificationTime(System.nanoTime());
      if (dataPath != null && dataPath.startsWith(_path))
      {
        NotificationContext changeContext = new NotificationContext(_manager);
        changeContext.setType(NotificationContext.Type.CALLBACK);
        _zkClient.unsubscribeChildChanges(dataPath, this);
        invoke(changeContext);
      }
    }
    catch (Exception e)
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    try
    {
      updateNotificationTime(System.nanoTime());
      if (parentPath != null && parentPath.startsWith(_path))
      {
        NotificationContext changeContext = new NotificationContext(_manager);
        changeContext.setType(NotificationContext.Type.CALLBACK);
        invoke(changeContext);
      }
    }
    catch (Exception e)
    {
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   */
  public void reset()
  {
    try
    {
      NotificationContext changeContext = new NotificationContext(_manager);
      changeContext.setType(NotificationContext.Type.FINALIZE);
      invoke(changeContext);
    }
    catch (Exception e)
    {
      ZKExceptionHandler.getInstance().handle(e);
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Related Classes of com.linkedin.helix.NotificationContext

  • com.linkedin.helix.controller.GenericHelixController
  • com.linkedin.helix.controller.GenericHelixController$RebalanceTask
  • com.linkedin.helix.manager.file.FileCallbackHandler
  • com.linkedin.helix.manager.file.StaticFileHelixManager
  • com.linkedin.helix.manager.zk.CallbackHandler
  • com.linkedin.helix.manager.zk.TestDefaultControllerMsgHandlerFactory
  • com.linkedin.helix.messaging.handling.TestHelixTaskExecutor
  • com.linkedin.helix.messaging.TestAsyncCallbackSvc
  • com.linkedin.helix.monitoring.mbeans.TestClusterStatusMonitor
  • com.linkedin.helix.participant.TestDistControllerElection
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