Examples of org.apache.helix.ZNRecord.merge()

org.apache.helix.ZNRecord.merge()
merge functionality is used to merge multiple znrecord into a single one. This will make use of the id of each ZNRecord and append it to every key thus making key unique. This is needed to optimize on the watches. @param record

    Map<String, String> paraMap = new HashMap<String, String>();


    paraMap.put(JsonParameters.MANAGEMENT_COMMAND, ClusterSetup.addStateModelDef);


    ZNRecord r = new ZNRecord("Test");
    r.merge(zn);


    httpUrlBase = "http://localhost:" + ADMIN_PORT + "/clusters/" + clusterName + "/StateModelDefs";
    resourceRef = new Reference(httpUrlBase);
    request = new Request(Method.POST, resourceRef);
    request.setEntity(

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    if (_liveInstanceInfoProvider != null) {
      LOG.info("invoke liveInstanceInfoProvider");
      ZNRecord additionalLiveInstanceInfo =
          _liveInstanceInfoProvider.getAdditionalLiveInstanceInfo();
      if (additionalLiveInstanceInfo != null) {
        additionalLiveInstanceInfo.merge(liveInstance.getRecord());
        ZNRecord mergedLiveInstance = new ZNRecord(additionalLiveInstanceInfo, _instanceName);
        liveInstance = new LiveInstance(mergedLiveInstance);
        LOG.info("instanceName: " + _instanceName + ", mergedLiveInstance: " + liveInstance);
      }
    }

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          client.updateDataSerialized(path, updater);
        } else {
          CreateMode mode = (persistent) ? CreateMode.PERSISTENT : CreateMode.EPHEMERAL;
          if (record.getDeltaList().size() > 0) {
            ZNRecord value = new ZNRecord(record.getId());
            value.merge(record);
            client.create(path, value, mode);
          } else {
            client.create(path, record, mode);
          }
        }

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    try {
      if (client.exists(path)) {
        if (mergeOnUpdate) {
          ZNRecord curRecord = client.readData(path);
          if (curRecord != null) {
            curRecord.merge(record);
            client.asyncSetData(path, curRecord, -1, null);
          } else {
            client.asyncSetData(path, record, -1, null);
          }
        } else {

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        }
      } else {
        CreateMode mode = (persistent) ? CreateMode.PERSISTENT : CreateMode.EPHEMERAL;
        if (record.getDeltaList().size() > 0) {
          ZNRecord newRecord = new ZNRecord(record.getId());
          newRecord.merge(record);
          client.create(path, null, mode);


          client.asyncSetData(path, newRecord, -1, null);
        } else {
          client.create(path, null, mode);

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    IdealState is1 = helixAccessor.getProperty(helixAccessor.keyBuilder().idealStates("TestDB"));
    idealStateOld1.merge(is1.getRecord());


    IdealState is2 = helixAccessor.getProperty(helixAccessor.keyBuilder().idealStates("MyDB"));
    idealStateOld2.merge(is2.getRecord());


    String instanceName = PARTICIPANT_PREFIX + "_" + (START_PORT + 0);
    ZKHelixAdmin tool = new ZKHelixAdmin(_gZkClient);
    _setupTool.getClusterManagementTool().enableInstance(CLUSTER_NAME, instanceName, false);

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    if (_liveInstanceInfoProvider != null) {
      LOG.info("Additional live instance information is provided: " + _liveInstanceInfoProvider);
      ZNRecord additionalLiveInstanceInfo =
          _liveInstanceInfoProvider.getAdditionalLiveInstanceInfo();
      if (additionalLiveInstanceInfo != null) {
        additionalLiveInstanceInfo.merge(liveInstance.getRecord());
        ZNRecord mergedLiveInstance =
            new ZNRecord(additionalLiveInstanceInfo, _participantId.stringify());
        liveInstance = new LiveInstance(mergedLiveInstance);
        LOG.info("Participant: " + _participantId + ", mergedLiveInstance: " + liveInstance);
      }

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          client.updateDataSerialized(path, updater);
        } else {
          CreateMode mode = (persistent) ? CreateMode.PERSISTENT : CreateMode.EPHEMERAL;
          if (record.getDeltaList().size() > 0) {
            ZNRecord value = new ZNRecord(record.getId());
            value.merge(record);
            client.create(path, value, mode);
          } else {
            client.create(path, record, mode);
          }
        }

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    try {
      if (client.exists(path)) {
        if (mergeOnUpdate) {
          ZNRecord curRecord = client.readData(path);
          if (curRecord != null) {
            curRecord.merge(record);
            client.asyncSetData(path, curRecord, -1, null);
          } else {
            client.asyncSetData(path, record, -1, null);
          }
        } else {

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        }
      } else {
        CreateMode mode = (persistent) ? CreateMode.PERSISTENT : CreateMode.EPHEMERAL;
        if (record.getDeltaList().size() > 0) {
          ZNRecord newRecord = new ZNRecord(record.getId());
          newRecord.merge(record);
          client.create(path, null, mode);


          client.asyncSetData(path, newRecord, -1, null);
        } else {
          client.create(path, null, mode);

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