Package org.apache.helix.model

Examples of org.apache.helix.model.CurrentState

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    MockStateModel stateModel = new MockStateModel();
    executor.registerMessageHandlerFactory(MessageType.TASK_REPLY.toString(),
        new AsyncCallbackService());

    NotificationContext context = new NotificationContext(manager);
    CurrentState currentStateDelta = new CurrentState("TestDB");
    currentStateDelta.setState(PartitionId.from("TestDB_0"), State.from("OFFLINE"));

    StateTransitionHandlerFactory<MockStateModel> stateModelFactory = new StateTransitionHandlerFactory<MockStateModel>() {

      @Override
      public MockStateModel createStateTransitionHandler(PartitionId partition) {
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      // verify current state empty
      List<String> liveParticipants = accessor.getChildNames(keyBuilder.liveInstances());
      for (String participant : liveParticipants) {
        List<String> sessionIds = accessor.getChildNames(keyBuilder.sessions(participant));
        for (String sessionId : sessionIds) {
          CurrentState currentState =
              accessor.getProperty(keyBuilder.currentState(participant, sessionId, _resourceName));
          Map<String, String> partitionStateMap = currentState.getPartitionStateMap();
          if (partitionStateMap != null && !partitionStateMap.isEmpty()) {
            LOG.error("Current state not empty for " + participant);
            return false;
          }
        }
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        new StateModelDefinition(StateModelConfigGenerator.generateConfigForMasterSlave());
    Builder keyBuilder = accessor.keyBuilder();
    accessor.setProperty(keyBuilder.stateModelDef("MasterSlave"), stateModelDef);

    context = new NotificationContext(manager);
    CurrentState currentStateDelta = new CurrentState("TestDB");
    currentStateDelta.setState(PartitionId.from("TestDB_0"), State.from("OFFLINE"));

    HelixStateTransitionHandler stHandler =
        new HelixStateTransitionHandler(null, stateModel, message, context, currentStateDelta);
    HelixTask handler;
    handler = new HelixTask(message, context, stHandler, executor);
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    Builder keyBuilder = accessor.keyBuilder();
    accessor.setProperty(keyBuilder.stateModelDef("MasterSlave"), stateModelDef);

    context = new NotificationContext(manager);

    CurrentState currentStateDelta = new CurrentState("TestDB");
    currentStateDelta.setState(PartitionId.from("TestDB_0"), State.from("OFFLINE"));

    StateTransitionHandlerFactory<MockStateModelAnnotated> stateModelFactory =
        new StateTransitionHandlerFactory<MockStateModelAnnotated>() {

          @Override
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      for (String instanceName : instanceNames) {
        List<String> sessionIds = accessor.getChildNames(keyBuilder.sessions(instanceName));

        for (String sessionId : sessionIds) {
          CurrentState curState =
              accessor.getProperty(keyBuilder.currentState(instanceName, sessionId, resourceName));

          if (curState != null && curState.getRecord().getMapFields().size() != 0) {
            return false;
          }
        }

        ExternalView extView = accessor.getProperty(keyBuilder.externalView(resourceName));
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        stateModel = stateModelFactory.createAndAddSTransitionHandler(partitionKey);
        stateModel.updateState(initState);
      }

      // TODO: move currentStateDelta to StateTransitionMsgHandler
      CurrentState currentStateDelta = new CurrentState(resourceId.stringify());
      currentStateDelta.setSessionId(sessionId);
      currentStateDelta.setStateModelDefRef(stateModelId.stringify());
      currentStateDelta.setStateModelFactoryName(factoryName);
      currentStateDelta.setBucketSize(bucketSize);

      currentStateDelta.setState(
          partitionKey,
          (stateModel.getCurrentState() == null) ? State.from(initState) : State.from(stateModel
              .getCurrentState()));

      return new HelixStateTransitionHandler(stateModelFactory, stateModel, message, context,
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      Map<ResourceId, CurrentState> curStateMap = participant.getCurrentStateMap();
      Assert.assertEquals(curStateMap.size(), 1);

      ResourceId resourceId = ResourceId.from("TestDB0");
      Assert.assertTrue(curStateMap.containsKey(resourceId));
      CurrentState curState = curStateMap.get(resourceId);
      Map<PartitionId, State> partitionStateMap = curState.getTypedPartitionStateMap();
      Assert.assertEquals(partitionStateMap.size(), p);
    }

    Map<ResourceId, Resource> resourceMap = cluster.getResourceMap();
    Assert.assertEquals(resourceMap.size(), 1);
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      String sessionId = manager.getSessionId();

      // get resource name from partition key: "PARTICIPANT_LEADER_XXX_0"
      String resourceName = _partitionKey.stringify().substring(0, _partitionKey.stringify().lastIndexOf('_'));

      CurrentState curState =
          accessor.getProperty(keyBuilder.currentState(instance, sessionId, resourceName));
      if (curState == null) {
        return;
      }

      String state = curState.getState(_partitionKey.stringify());
      if (state == null || !state.equalsIgnoreCase("LEADER")) {
        return;
      }
    }
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  private void setCurrentState(String clusterName, String instance, String resourceGroupName,
      String resourceKey, String sessionId, String state) {
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, _baseAccessor);
    Builder keyBuilder = accessor.keyBuilder();

    CurrentState curState = new CurrentState(resourceGroupName);
    curState.setState(PartitionId.from(resourceKey), State.from(state));
    curState.setSessionId(SessionId.from(sessionId));
    curState.setStateModelDefRef("MasterSlave");
    accessor.setProperty(keyBuilder.currentState(instance, sessionId, resourceGroupName), curState);
  }
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    accessor.setProperty(keyBuilder.externalView("db-12345"), extView);
    Thread.sleep(100);
    AssertJUnit.assertTrue(testListener.externalViewChangeReceived);
    testListener.Reset();

    CurrentState curState = new CurrentState("db-12345");
    curState.setSessionId(SessionId.from("sessionId"));
    curState.setStateModelDefRef("StateModelDef");
    accessor.setProperty(keyBuilder.currentState("localhost_8900", testHelixManager.getSessionId(),
        curState.getId()), curState);
    Thread.sleep(100);
    AssertJUnit.assertTrue(testListener.currentStateChangeReceived);
    testListener.Reset();

    IdealState idealState = new IdealState("db-1234");
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Related Classes of org.apache.helix.model.CurrentState

  • org.apache.helix.api.accessor.ParticipantAccessor
  • org.apache.helix.api.TestNewStages
  • org.apache.helix.controller.rebalancer.AutoRebalancer
  • org.apache.helix.controller.stages.BestPossibleStateCalcStage
  • org.apache.helix.controller.stages.CurrentStateOutput
  • org.apache.helix.controller.stages.ResourceComputationStage
  • org.apache.helix.controller.stages.ResourceCurrentState
  • org.apache.helix.controller.stages.TestCurrentStateComputationStage
  • org.apache.helix.controller.stages.TestRebalancePipeline
  • org.apache.helix.controller.stages.TestResourceComputationStage
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