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

        {
          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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        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);

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      {
        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

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


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


    httpUrlBase =
        "http://localhost:" + ADMIN_PORT + "/clusters/" + clusterName + "/StateModelDefs";
    resourceRef = new Reference(httpUrlBase);

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          {
            localEndSeq = (int) lastRecordProcessed.txid;
          }
          newRec.setSimpleField("prevGenEndSeq", "" + localEndSeq);
        }
        newRec.merge(currentData);
      } else
      {
        newRec.setSimpleField("currentGen", Integer.toString(1));
        newRec.setSimpleField("currentGenStartSeq", Integer.toString(1));
      }

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      PropertyType type = key.getType();
      if (type.updateOnlyOnExists) {
        if (data.containsKey(path)) {
          if (type.mergeOnUpdate) {
            ZNRecord znRecord = new ZNRecord(data.get(path));
            znRecord.merge(value.getRecord());
            data.put(path, znRecord);
          } else {
            data.put(path, value.getRecord());
          }
        }

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        }
      } else {
        if (type.mergeOnUpdate) {
          if (data.containsKey(path)) {
            ZNRecord znRecord = new ZNRecord(data.get(path));
            znRecord.merge(value.getRecord());
            data.put(path, znRecord);
          } else {
            data.put(path, value.getRecord());
          }
        } else {

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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(_zkClient);
    _setupTool.getClusterManagementTool().enableInstance(CLUSTER_NAME, instanceName, false);

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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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          if (lastRecordProcessed != null) {
            localEndSeq = (int) lastRecordProcessed.txid;
          }
          newRec.setSimpleField("prevGenEndSeq", "" + localEndSeq);
        }
        newRec.merge(currentData);
      } else {
        newRec.setSimpleField("currentGen", Integer.toString(1));
        newRec.setSimpleField("currentGenStartSeq", Integer.toString(1));
      }
      return newRec;

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