Examples of com.linkedin.helix.HelixProperty

com.linkedin.helix.HelixProperty
A wrapper class for ZNRecord. Used as a base class for IdealState, CurrentState, etc.

        PropertyType type = key.getType();
        List<T> result = new ArrayList<T>();
        Class<? extends HelixProperty> clazz = key.getTypeClass();
        if(type == PropertyType.EXTERNALVIEW || type == PropertyType.IDEALSTATES)
        {
          HelixProperty typedInstance = HelixProperty.convertToTypedInstance(clazz, _externalView);
          result.add((T) typedInstance);
          return result;
        }
        else if(type == PropertyType.LIVEINSTANCES)
        {

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    {
      idealState.getRecord().setSimpleField(i + "", bufStr);
    }
    boolean succeed = accessor.setProperty(keyBuilder.idealStates("TestDB0"), idealState);
    Assert.assertFalse(succeed);
    HelixProperty property =
        accessor.getProperty(keyBuilder.stateTransitionStatus("localhost_12918",
                                                              "session_1",
                                                              "partition_1"));
    Assert.assertNull(property);

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    }
    boolean succeed =
        accessor.setProperty(keyBuilder.idealStates("TestDB_1"),
                                                              idealState);
    Assert.assertFalse(succeed);
    HelixProperty property =
        accessor.getProperty(keyBuilder.idealStates("TestDB_1"));
    Assert.assertNull(property);


    // legal sized data gets written to zk
    idealState.getRecord().getSimpleFields().clear();

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    _setupTool.getClusterManagementTool().addAlert(CLUSTER_NAME, _alertStr2);


    int historySize = 0;
    HelixDataAccessor helixDataAccessor = manager.getHelixDataAccessor();
    Builder keyBuilder = helixDataAccessor.keyBuilder();
    HelixProperty property = helixDataAccessor.getProperty(keyBuilder.alertHistory());
    ZNRecord history = null;
    if(property != null)
    {
      history = property.getRecord();
      historySize = property.getRecord().getMapFields().size();
    }
    
    HealthStatsAggregationTask task = new HealthStatsAggregationTask(_startCMResultMap.get(controllerName)._manager);
    task.run();
    Thread.sleep(100);

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        {
            // check if bucketized
          List<ZNRecord> records = _baseAccessor.getChildren(path, null, 0);
          for (ZNRecord record : records)
          {
                HelixProperty property = new HelixProperty(record);
              String childPath = path + "/" + record.getId();


                int bucketSize = property.getBucketSize();
                if (bucketSize > 0)
                {
                  // subscribe both data-change and child-change on bucketized parent
                  // data-change gives a delete-callback which is used to remove watch
                  subscribeChildChange(childPath, context);

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      String date = dateFormat.format(new Date());


      HelixDataAccessor accessor = manager.getHelixDataAccessor();
      Builder keyBuilder = accessor.keyBuilder();


      HelixProperty property = accessor.getProperty(keyBuilder.alertHistory());
      ZNRecord alertFiredHistory;
      if(property == null)
      {
        alertFiredHistory = new ZNRecord(PropertyType.ALERT_HISTORY.toString());
      }
      else
      {
        alertFiredHistory = property.getRecord();
      }
      while(alertFiredHistory.getMapFields().size() >= ALERT_HISTORY_SIZE)
      {
        // ZNRecord uses TreeMap which is sorted ascending internally
        String firstKey = (String)(alertFiredHistory.getMapFields().keySet().toArray()[0]);

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        List<T> result = new ArrayList<T>();
        PropertyType type = key.getType();
        Class<? extends HelixProperty> clazz = key.getTypeClass();
        if (type == PropertyType.EXTERNALVIEW)
        {
          HelixProperty typedInstance = HelixProperty.convertToTypedInstance(clazz, _externalView);
          result.add((T) typedInstance);
          return result;
        }
        else if (type == PropertyType.LIVEINSTANCES)
        {

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  {


    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(zkClient));


    HelixProperty property = accessor.getProperty(propertyKey);
    ZNRecord record = property == null ? null : property.getRecord();
    return ZNRecordToJson(record);
  }

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  {
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(zkClient));


    ZNRecord record = EMPTY_ZNRECORD;
    HelixProperty property = accessor.getProperty(propertyKey);
    if (property != null)
    {
      record = property.getRecord();
    }
    return ObjectToJson(record);
  }

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      List<ZNRecord> instanceCurrentStateList = new ArrayList<ZNRecord>();
      for (ZNRecord idealState : idealStateList)
      {
        String resourceName = idealState.getId();
        
        HelixProperty property = accessor.getProperty(keyBuilder.currentState(host, sessionId, resourceName));
        ZNRecord currentState =null;
        if (property == null)
        {
          _logger.warn("Resource " + resourceName + " has null currentState");
          currentState = new ZNRecord(resourceName);
        }else{
          currentState = property.getRecord();
        }
        currentStates.put(resourceName, currentState);
        instanceCurrentStateList.add(currentState);
      }
      currentStatesMap.put(host, currentStates);

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