Package org.apache.helix.model

Examples of org.apache.helix.model.Message

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  private Message createMessage(HelixManager manager, String resourceName, String partitionName,
      String instanceName, String currentState, String nextState, String sessionId,
      String stateModelDefName, String stateModelFactoryName, int bucketSize) {
    String uuid = UUID.randomUUID().toString();
    Message message = new Message(MessageType.STATE_TRANSITION, uuid);
    message.setSrcName(manager.getInstanceName());
    message.setTgtName(instanceName);
    message.setMsgState(MessageState.NEW);
    message.setPartitionName(partitionName);
    message.setResourceName(resourceName);
    message.setFromState(currentState);
    message.setToState(nextState);
    message.setTgtSessionId(sessionId);
    message.setSrcSessionId(manager.getSessionId());
    message.setStateModelDef(stateModelDefName);
    message.setStateModelFactoryName(stateModelFactoryName);
    message.setBucketSize(bucketSize);

    return message;
  }
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            sessionIdMap.put(liveInstance.getInstanceName(), liveInstance.getSessionId());
          }
        }
        for (Map<String, String> map : matchedList) {
          String id = UUID.randomUUID().toString();
          Message newMessage = new Message(message.getRecord(), id);
          String srcInstanceName = _manager.getInstanceName();
          String tgtInstanceName = map.get("instanceName");
          // Don't send message to self
          if (recipientCriteria.isSelfExcluded()
              && srcInstanceName.equalsIgnoreCase(tgtInstanceName)) {
            continue;
          }
          newMessage.setSrcName(srcInstanceName);
          newMessage.setTgtName(tgtInstanceName);
          newMessage.setResourceName(map.get("resourceName"));
          newMessage.setPartitionName(map.get("partitionName"));
          if (recipientCriteria.isSessionSpecific()) {
            newMessage.setTgtSessionId(sessionIdMap.get(tgtInstanceName));
          }
          messages.add(newMessage);
        }
        messagesToSendMap.put(InstanceType.PARTICIPANT, messages);
      }
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  }

  private List<Message> generateMessagesForController(Message message) {
    List<Message> messages = new ArrayList<Message>();
    String id = UUID.randomUUID().toString();
    Message newMessage = new Message(message.getRecord(), id);
    newMessage.setMsgId(id);
    newMessage.setSrcName(_manager.getInstanceName());
    newMessage.setTgtName("Controller");
    messages.add(newMessage);
    return messages;
  }
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    sendNopMessageInternal();
  }

  private void sendNopMessageInternal() {
    try {
      Message nopMsg = new Message(MessageType.NO_OP, UUID.randomUUID().toString());
      nopMsg.setSrcName(_manager.getInstanceName());

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

      if (_manager.getInstanceType() == InstanceType.CONTROLLER
          || _manager.getInstanceType() == InstanceType.CONTROLLER_PARTICIPANT) {
        nopMsg.setTgtName("Controller");
        accessor.setProperty(keyBuilder.controllerMessage(nopMsg.getId()), nopMsg);
      }

      if (_manager.getInstanceType() == InstanceType.PARTICIPANT
          || _manager.getInstanceType() == InstanceType.CONTROLLER_PARTICIPANT) {
        nopMsg.setTgtName(_manager.getInstanceName());
        accessor.setProperty(keyBuilder.message(nopMsg.getTgtName(), nopMsg.getId()), nopMsg);
      }
    } catch (Exception e) {
      _logger.error(e);
    }
  }
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    NotificationContext changeContext = new NotificationContext(manager);
    List<Message> msgList = new ArrayList<Message>();

    int nMsgs1 = 5;
    for (int i = 0; i < nMsgs1; i++) {
      Message msg = new Message(factory.getMessageType(), UUID.randomUUID().toString());
      msg.setTgtSessionId(manager.getSessionId());
      msg.setTgtName("Localhost_1123");
      msg.setSrcName("127.101.1.23_2234");
      msgList.add(msg);
    }

    int nMsgs2 = 4;
    for (int i = 0; i < nMsgs2; i++) {
      Message msg = new Message(factory2.getMessageType(), UUID.randomUUID().toString());
      msg.setTgtSessionId(manager.getSessionId());
      msg.setTgtName("Localhost_1123");
      msg.setSrcName("127.101.1.23_2234");
      msgList.add(msg);
    }
    executor.onMessage("someInstance", msgList, changeContext);

    Thread.sleep(1000);
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public class TestHelixTaskHandler {
  @Test()
  public void testInvocation() throws Exception {
    HelixTaskExecutor executor = new HelixTaskExecutor();
    System.out.println("START TestCMTaskHandler.testInvocation()");
    Message message = new Message(MessageType.STATE_TRANSITION, "Some unique id");

    message.setSrcName("cm-instance-0");
    message.setTgtSessionId("1234");
    message.setFromState("Offline");
    message.setToState("Slave");
    message.setPartitionName("TestDB_0");
    message.setMsgId("Some unique message id");
    message.setResourceName("TestDB");
    message.setTgtName("localhost");
    message.setStateModelDef("MasterSlave");
    message.setStateModelFactoryName(HelixConstants.DEFAULT_STATE_MODEL_FACTORY);
    MockStateModel stateModel = new MockStateModel();
    NotificationContext context;
    MockManager manager = new MockManager("clusterName");
    HelixDataAccessor accessor = manager.getHelixDataAccessor();
    StateModelDefinition stateModelDef =
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    NotificationContext changeContext = new NotificationContext(manager);
    List<Message> msgList = new ArrayList<Message>();

    int nMsgs1 = 5;
    for (int i = 0; i < nMsgs1; i++) {
      Message msg = new Message(factory.getMessageType(), UUID.randomUUID().toString());
      msg.setTgtSessionId("*");
      msg.setTgtName("");
      msgList.add(msg);
    }

    int nMsgs2 = 4;
    for (int i = 0; i < nMsgs2; i++) {
      Message msg = new Message(factory2.getMessageType(), UUID.randomUUID().toString());
      msg.setTgtSessionId("some other session id");
      msg.setTgtName("");
      msgList.add(msg);
    }
    executor.onMessage("someInstance", msgList, changeContext);

    Thread.sleep(1000);
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  @Test()
  public void testInvocationAnnotated() throws Exception {
    System.out.println("START TestCMTaskHandler.testInvocationAnnotated() at "
        + new Date(System.currentTimeMillis()));
    HelixTaskExecutor executor = new HelixTaskExecutor();
    Message message = new Message(MessageType.STATE_TRANSITION, "Some unique id");
    message.setSrcName("cm-instance-0");
    message.setTgtSessionId("1234");
    message.setFromState("Offline");
    message.setToState("Slave");
    message.setPartitionName("TestDB_0");
    message.setMsgId("Some unique message id");
    message.setResourceName("TestDB");
    message.setTgtName("localhost");
    message.setStateModelDef("MasterSlave");
    message.setStateModelFactoryName(HelixConstants.DEFAULT_STATE_MODEL_FACTORY);
    MockStateModelAnnotated stateModel = new MockStateModelAnnotated();
    NotificationContext context;

    MockManager manager = new MockManager("clusterName");
    HelixDataAccessor accessor = manager.getHelixDataAccessor();
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    NotificationContext changeContext = new NotificationContext(manager);
    List<Message> msgList = new ArrayList<Message>();

    int nMsgs1 = 5;
    for (int i = 0; i < nMsgs1; i++) {
      Message msg = new Message(factory.getMessageType(), UUID.randomUUID().toString());
      msg.setTgtSessionId(manager.getSessionId());
      msg.setTgtName("Localhost_1123");
      msg.setSrcName("127.101.1.23_2234");
      msg.setCorrelationId(UUID.randomUUID().toString());
      msgList.add(msg);
    }
    Message exceptionMsg = new Message(factory.getMessageType(), UUID.randomUUID().toString());
    exceptionMsg.setTgtSessionId(manager.getSessionId());
    exceptionMsg.setMsgSubType("EXCEPTION");
    exceptionMsg.setTgtName("Localhost_1123");
    exceptionMsg.setSrcName("127.101.1.23_2234");
    exceptionMsg.setCorrelationId(UUID.randomUUID().toString());
    msgList.add(exceptionMsg);

    executor.onMessage("someInstance", msgList, changeContext);

    Thread.sleep(1000);

    AssertJUnit.assertTrue(factory._processedMsgIds.size() == nMsgs1);
    AssertJUnit.assertTrue(factory._handlersCreated == nMsgs1);

    AssertJUnit.assertTrue(exceptionMsg.getMsgState() == MessageState.UNPROCESSABLE);
    System.out.println("END TestCMTaskExecutor.testCreateHandlerException()");
  }
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    NotificationContext changeContext = new NotificationContext(manager);
    List<Message> msgList = new ArrayList<Message>();

    int nMsgs1 = 0;
    for (int i = 0; i < nMsgs1; i++) {
      Message msg = new Message(factory.getMessageType(), UUID.randomUUID().toString());
      msg.setTgtSessionId("*");
      msg.setTgtName("Localhost_1123");
      msg.setSrcName("127.101.1.23_2234");
      msgList.add(msg);
    }

    List<Message> msgListToCancel = new ArrayList<Message>();
    int nMsgs2 = 4;
    for (int i = 0; i < nMsgs2; i++) {
      Message msg = new Message(factory.getMessageType(), UUID.randomUUID().toString());
      msg.setTgtSessionId("*");
      msgList.add(msg);
      msg.setTgtName("Localhost_1123");
      msg.setSrcName("127.101.1.23_2234");
      msgListToCancel.add(msg);
    }
    executor.onMessage("someInstance", msgList, changeContext);
    Thread.sleep(500);
    for (int i = 0; i < nMsgs2; i++) {
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Related Classes of org.apache.helix.model.Message

  • org.apache.helix.api.accessor.ClusterAccessor
  • org.apache.helix.api.accessor.ParticipantAccessor
  • org.apache.helix.api.config.SchedulerTaskConfig
  • org.apache.helix.api.Resource
  • org.apache.helix.controller.stages.ContainerProvisioningStage
  • org.apache.helix.controller.stages.ExternalViewComputeStage
  • org.apache.helix.controller.stages.MessageGenerationPhase
  • org.apache.helix.controller.stages.MessageGenerationStage
  • org.apache.helix.controller.stages.TaskAssignmentStage
  • org.apache.helix.controller.stages.TestCurrentStateComputationStage
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