Package com.linkedin.helix.model

Examples of com.linkedin.helix.model.StateModelDefinition

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    }

    idealState.setReplicas(Integer.toString(replica));
    int partitions = idealState.getNumPartitions();
    String stateModelName = idealState.getStateModelDefRef();
    StateModelDefinition stateModDef =
        _admin.getStateModelDef(clusterName, stateModelName);

    if (stateModDef == null)
    {
      throw new HelixException("cannot find state model: " + stateModelName);
    }
    // StateModelDefinition def = new StateModelDefinition(stateModDef);

    List<String> statePriorityList = stateModDef.getStatesPriorityList();

    String masterStateValue = null;
    String slaveStateValue = null;
    replica--;

    for (String state : statePriorityList)
    {
      String count = stateModDef.getNumInstancesPerState(state);
      if (count.equals("1"))
      {
        if (masterStateValue != null)
        {
          throw new HelixException("Invalid or unsupported state model definition");
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    }
    else if (cmd.hasOption(listStateModel))
    {
      String clusterName = cmd.getOptionValues(listStateModel)[0];
      String stateModel = cmd.getOptionValues(listStateModel)[1];
      StateModelDefinition stateModelDef =
          setupTool.getClusterManagementTool().getStateModelDef(clusterName, stateModel);
      String result =
          new String(new ZNRecordSerializer().serialize(stateModelDef.getRecord()));
      System.out.println("StateModelDefinition: " + result);
      return 0;
    }
    else if (cmd.hasOption(addStateModelDef))
    {
      String clusterName = cmd.getOptionValues(addStateModelDef)[0];
      String stateModelFile = cmd.getOptionValues(addStateModelDef)[1];

      ZNRecord stateModelRecord =
          (ZNRecord) (new ZNRecordSerializer().deserialize(readFile(stateModelFile)));
      if (stateModelRecord.getId() == null || stateModelRecord.getId().length() == 0)
      {
        throw new IllegalArgumentException("ZNRecord for state model definition must have an id");
      }
      setupTool.getClusterManagementTool()
               .addStateModelDef(clusterName,
                                 stateModelRecord.getId(),
                                 new StateModelDefinition(stateModelRecord));
      return 0;
    }
    else if (cmd.hasOption(addIdealState))
    {
      String clusterName = cmd.getOptionValues(addIdealState)[0];
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  {
    ZNRecord masterSlave = new StateModelConfigGenerator()
        .generateConfigForMasterSlave();
   
    Builder keyBuilder = accessor.keyBuilder();
    accessor.setProperty(keyBuilder.stateModelDef(masterSlave.getId()), new StateModelDefinition(masterSlave));
   
    ZNRecord leaderStandby = new StateModelConfigGenerator()
        .generateConfigForLeaderStandby();
    accessor.setProperty(keyBuilder.stateModelDef(leaderStandby.getId()), new StateModelDefinition(leaderStandby));

    ZNRecord onlineOffline = new StateModelConfigGenerator()
        .generateConfigForOnlineOffline();
    accessor.setProperty(keyBuilder.stateModelDef(onlineOffline.getId()), new StateModelDefinition(onlineOffline));
  }
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          {
            logger.error("pervious current state doesn't have a state model def. skip it. prevCS: "
                + previousCurrentState);
            continue;
          }
          StateModelDefinition stateModel =
              _helixAccessor.getProperty(keyBuilder.stateModelDef(stateModelDefRef));
          for (String partitionName : previousCurrentState.getPartitionStateMap()
                                                          .keySet())
          {

            previousCurrentState.setState(partitionName, stateModel.getInitialState());
          }
          previousCurrentState.setSessionId(_sessionId);
          _helixAccessor.setProperty(keyBuilder.currentState(_instanceName,
                                                             _sessionId,
                                                             previousCurrentState.getId()),
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        ZNRecord newStateModel = jsonParameters.getExtraParameter(JsonParameters.NEW_STATE_MODEL_DEF);
        HelixDataAccessor accessor =
            ClusterRepresentationUtil.getClusterDataAccessor(zkClient, clusterName);

        accessor.setProperty(accessor.keyBuilder().stateModelDef(newStateModel.getId()),
                             new StateModelDefinition(newStateModel));
      }
      else
      {
        throw new HelixException("Unsupported command: " + command
            + ". Should be one of [" + ClusterSetup.addStateModelDef + "]");
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    _admin.addCluster(clusterName, overwritePrevious);

    StateModelConfigGenerator generator = new StateModelConfigGenerator();
    addStateModelDef(clusterName,
                     "MasterSlave",
                     new StateModelDefinition(generator.generateConfigForMasterSlave()));
    addStateModelDef(clusterName,
                     "LeaderStandby",
                     new StateModelDefinition(generator.generateConfigForLeaderStandby()));
    addStateModelDef(clusterName,
                     "StorageSchemata",
                     new StateModelDefinition(generator.generateConfigForStorageSchemata()));
    addStateModelDef(clusterName,
                     "OnlineOffline",
                     new StateModelDefinition(generator.generateConfigForOnlineOffline()));
  }
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  public String[] parseStates(String clusterName, String stateModelName)
  {
    String[] result = new String[2];
    String masterStateValue = null, slaveStateValue = null;
    StateModelDefinition stateModDef =
        _admin.getStateModelDef(clusterName, stateModelName);

    if (stateModDef == null)
    {
      throw new HelixException("cannot find state model: " + stateModelName);
    }
    // StateModelDefinition def = new StateModelDefinition(stateModDef);

    List<String> statePriorityList = stateModDef.getStatesPriorityList();

    for (String state : statePriorityList)
    {
      String count = stateModDef.getNumInstancesPerState(state);
      if (count.equals("1"))
      {
        if (masterStateValue != null)
        {
          throw new HelixException("Invalid or unsupported state model definition");
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    }

    idealState.setReplicas(Integer.toString(replica));
    int partitions = idealState.getNumPartitions();
    String stateModelName = idealState.getStateModelDefRef();
    StateModelDefinition stateModDef =
        _admin.getStateModelDef(clusterName, stateModelName);

    if (stateModDef == null)
    {
      throw new HelixException("cannot find state model: " + stateModelName);
    }
    // StateModelDefinition def = new StateModelDefinition(stateModDef);

    List<String> statePriorityList = stateModDef.getStatesPriorityList();

    String masterStateValue = null;
    String slaveStateValue = null;
    replica--;

    for (String state : statePriorityList)
    {
      String count = stateModDef.getNumInstancesPerState(state);
      if (count.equals("1"))
      {
        if (masterStateValue != null)
        {
          throw new HelixException("Invalid or unsupported state model definition");
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    }
    else if (cmd.hasOption(listStateModel))
    {
      String clusterName = cmd.getOptionValues(listStateModel)[0];
      String stateModel = cmd.getOptionValues(listStateModel)[1];
      StateModelDefinition stateModelDef =
          setupTool.getClusterManagementTool().getStateModelDef(clusterName, stateModel);
      String result =
          new String(new ZNRecordSerializer().serialize(stateModelDef.getRecord()));
      System.out.println("StateModelDefinition: " + result);
      return 0;
    }
    else if (cmd.hasOption(addStateModelDef))
    {
      String clusterName = cmd.getOptionValues(addStateModelDef)[0];
      String stateModelFile = cmd.getOptionValues(addStateModelDef)[1];

      ZNRecord stateModelRecord =
          (ZNRecord) (new ZNRecordSerializer().deserialize(readFile(stateModelFile)));
      if (stateModelRecord.getId() == null || stateModelRecord.getId().length() == 0)
      {
        throw new IllegalArgumentException("ZNRecord for state model definition must have an id");
      }
      setupTool.getClusterManagementTool()
               .addStateModelDef(clusterName,
                                 stateModelRecord.getId(),
                                 new StateModelDefinition(stateModelRecord));
      return 0;
    }
    else if (cmd.hasOption(addIdealState))
    {
      String clusterName = cmd.getOptionValues(addIdealState)[0];
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      // OK
    }
    ZNRecord stateModelRecord = new ZNRecord("id1");
    try
    {
      tool.addStateModelDef(clusterName, "id1", new StateModelDefinition(
          stateModelRecord));
      path = PropertyPathConfig.getPath(PropertyType.STATEMODELDEFS,
          clusterName, "id1");
      AssertJUnit.assertTrue(_gZkClient.exists(path));
      Assert.fail("should fail");
    } catch (HelixException e)
    {
      // OK
    }
    try
    {
      tool.addStateModelDef(clusterName, "id1", new StateModelDefinition(
          stateModelRecord));
      Assert.fail("should fail if add an already-existing state model");
    } catch (HelixException e)
    {
      // OK
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Related Classes of com.linkedin.helix.model.StateModelDefinition

  • com.linkedin.helix.controller.stages.BaseStageTest
  • com.linkedin.helix.controller.stages.BestPossibleStateCalcStage
  • com.linkedin.helix.controller.stages.MessageGenerationPhase
  • com.linkedin.helix.controller.stages.MessageSelectionStage
  • com.linkedin.helix.examples.IdealStateExample
  • com.linkedin.helix.integration.FileCMTestBase
  • com.linkedin.helix.manager.file.FileHelixAdmin
  • com.linkedin.helix.manager.zk.TestZkHelixAdmin
  • com.linkedin.helix.manager.zk.ZKHelixAdmin
  • com.linkedin.helix.manager.zk.ZKHelixManager
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