Package org.apache.helix

Examples of org.apache.helix.LiveInstanceChangeListener

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        configChangeListener.onConfigChange(configs, changeContext);

      }
      else if (_changeType == LIVE_INSTANCE)
      {
        LiveInstanceChangeListener liveInstanceChangeListener =
            (LiveInstanceChangeListener) _listener;
        subscribeForChanges(changeContext, _path, true, true);
        List<LiveInstance> liveInstances =
            _accessor.getChildValues(keyBuilder.liveInstances());

        liveInstanceChangeListener.onLiveInstanceChange(liveInstances, changeContext);

      }
      else if (_changeType == CURRENT_STATE)
      {
        CurrentStateChangeListener currentStateChangeListener;
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                                              ZK_ADDR);
    adminManager.connect();
    final BlockingQueue<List<LiveInstance>> changeList =
        new LinkedBlockingQueue<List<LiveInstance>>();

    adminManager.addLiveInstanceChangeListener(new LiveInstanceChangeListener()
    {
      @Override
      public void onLiveInstanceChange(List<LiveInstance> liveInstances,
                                       NotificationContext changeContext)
      {
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            ZK_ADDR);
    adminManager.connect();
    final BlockingQueue<List<LiveInstance>> changeList =
        new LinkedBlockingQueue<List<LiveInstance>>();

    adminManager.addLiveInstanceChangeListener(new LiveInstanceChangeListener() {
      @Override
      public void onLiveInstanceChange(List<LiveInstance> liveInstances,
          NotificationContext changeContext) {
        // The queue is basically unbounded, so shouldn't throw exception when calling
        // "add".
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    timer.scheduleAtFixedRate(timertask, DEFAULT_POLL_INTERVAL, DEFAULT_POLL_INTERVAL);
  }

  private void setupWatcher() throws Exception {

    LiveInstanceChangeListener listener = new LiveInstanceChangeListener() {
      @Override
      public void onLiveInstanceChange(List<LiveInstance> liveInstances,
          NotificationContext changeContext) {
        if (changeContext.getType() != NotificationContext.Type.FINALIZE) {
          refreshCache();
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        subscribeForChanges(changeContext, _path, true, true);
        ScopedConfigChangeListener listener = (ScopedConfigChangeListener) _listener;
        List<HelixProperty> configs = _accessor.getChildValues(_propertyKey);
        listener.onConfigChange(configs, changeContext);
      } else if (_changeType == LIVE_INSTANCE) {
        LiveInstanceChangeListener liveInstanceChangeListener =
            (LiveInstanceChangeListener) _listener;
        subscribeForChanges(changeContext, _path, true, true);
        List<LiveInstance> liveInstances = _accessor.getChildValues(_propertyKey);

        liveInstanceChangeListener.onLiveInstanceChange(liveInstances, changeContext);

      } else if (_changeType == CURRENT_STATE) {
        CurrentStateChangeListener currentStateChangeListener =
            (CurrentStateChangeListener) _listener;
        subscribeForChanges(changeContext, _path, true, true);
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        subscribeForChanges(changeContext, _path, true, true);
        ScopedConfigChangeListener listener = (ScopedConfigChangeListener) _listener;
        List<HelixProperty> configs = _accessor.getChildValues(_propertyKey);
        listener.onConfigChange(configs, changeContext);
      } else if (_changeType == LIVE_INSTANCE) {
        LiveInstanceChangeListener liveInstanceChangeListener =
            (LiveInstanceChangeListener) _listener;
        subscribeForChanges(changeContext, _path, true, true);
        List<LiveInstance> liveInstances = _accessor.getChildValues(_propertyKey);

        liveInstanceChangeListener.onLiveInstanceChange(liveInstances, changeContext);

      } else if (_changeType == CURRENT_STATE) {
        CurrentStateChangeListener currentStateChangeListener =
            (CurrentStateChangeListener) _listener;
        subscribeForChanges(changeContext, _path, true, true);
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            _zkaddr);
    adminManager.connect();
    final BlockingQueue<List<LiveInstance>> changeList =
        new LinkedBlockingQueue<List<LiveInstance>>();

    adminManager.addLiveInstanceChangeListener(new LiveInstanceChangeListener() {
      @Override
      public void onLiveInstanceChange(List<LiveInstance> liveInstances,
          NotificationContext changeContext) {
        // The queue is basically unbounded, so shouldn't throw exception when calling
        // "add".
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    timer.scheduleAtFixedRate(timertask, DEFAULT_POLL_INTERVAL, DEFAULT_POLL_INTERVAL);
  }

  private void setupWatcher() throws Exception {

    LiveInstanceChangeListener listener = new LiveInstanceChangeListener() {
      @Override
      public void onLiveInstanceChange(List<LiveInstance> liveInstances,
          NotificationContext changeContext) {
        if (changeContext.getType() != NotificationContext.Type.FINALIZE) {
          refreshCache();
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        subscribeForChanges(changeContext, _path, true, true);
        ScopedConfigChangeListener listener = (ScopedConfigChangeListener) _listener;
        List<HelixProperty> configs = _accessor.getChildValues(_propertyKey);
        listener.onConfigChange(configs, changeContext);
      } else if (_changeType == LIVE_INSTANCE) {
        LiveInstanceChangeListener liveInstanceChangeListener =
            (LiveInstanceChangeListener) _listener;
        subscribeForChanges(changeContext, _path, true, true);
        List<LiveInstance> liveInstances = _accessor.getChildValues(_propertyKey);

        liveInstanceChangeListener.onLiveInstanceChange(liveInstances, changeContext);

      } else if (_changeType == CURRENT_STATE) {
        CurrentStateChangeListener currentStateChangeListener =
            (CurrentStateChangeListener) _listener;
        subscribeForChanges(changeContext, _path, true, true);
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        subscribeForChanges(changeContext, _path, true, true);
        ScopedConfigChangeListener listener = (ScopedConfigChangeListener) _listener;
        List<HelixProperty> configs = _accessor.getChildValues(_propertyKey);
        listener.onConfigChange(configs, changeContext);
      } else if (_changeType == LIVE_INSTANCE) {
        LiveInstanceChangeListener liveInstanceChangeListener =
            (LiveInstanceChangeListener) _listener;
        subscribeForChanges(changeContext, _path, true, true);
        List<LiveInstance> liveInstances = _accessor.getChildValues(_propertyKey);

        liveInstanceChangeListener.onLiveInstanceChange(liveInstances, changeContext);

      } else if (_changeType == CURRENT_STATE) {
        CurrentStateChangeListener currentStateChangeListener =
            (CurrentStateChangeListener) _listener;
        subscribeForChanges(changeContext, _path, true, true);
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Related Classes of org.apache.helix.LiveInstanceChangeListener

  • org.apache.helix.manager.zk.CallbackHandler
  • org.apache.helix.manager.zk.TestZKLiveInstanceData
  • org.apache.helix.manager.zk.ZkCallbackHandler
  • org.apache.helix.servicediscovery.ServiceDiscovery
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