Package com.linkedin.helix.model

Examples of com.linkedin.helix.model.Message

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      if(criteriaString == null)
      {
        throw new HelixException("SchedulerTasksResource need to have Criteria specified.");
      }
     
      Message schedulerMessage = new Message(MessageType.SCHEDULER_MSG, UUID.randomUUID().toString());
      schedulerMessage.getRecord().getSimpleFields().put(CRITERIA, criteriaString);
     
      schedulerMessage.getRecord().getMapFields().put(MESSAGETEMPLATE, messageTemplate);
     
      schedulerMessage.setTgtSessionId("*");
      schedulerMessage.setTgtName("CONTROLLER");
      schedulerMessage.setSrcInstanceType(InstanceType.CONTROLLER);
     
      HelixDataAccessor accessor = ClusterRepresentationUtil.getClusterDataAccessor(zkClient, clusterName);
      accessor.setProperty(accessor.keyBuilder().controllerMessage(schedulerMessage.getMsgId()), schedulerMessage);
     
      Map<String, String> resultMap = new HashMap<String, String>();
      resultMap.put("StatusUpdatePath", PropertyPathConfig.getPath(PropertyType.STATUSUPDATES_CONTROLLER, clusterName, MessageType.SCHEDULER_MSG.toString(),schedulerMessage.getMsgId()));
      resultMap.put("MessageType", Message.MessageType.SCHEDULER_MSG.toString());
      resultMap.put("MsgId", schedulerMessage.getMsgId());
     
      // Assemble the rest URL for task status update
      String ipAddress = InetAddress.getLocalHost().getCanonicalHostName();
      String url = "http://" + ipAddress+":" + getContext().getAttributes().get(RestAdminApplication.PORT)
          + "/clusters/" + clusterName+"/Controller/statusUpdates/SCHEDULER_MSG/" + schedulerMessage.getMsgId();
      resultMap.put("statusUpdateUrl", url);
     
      getResponse().setEntity(ClusterRepresentationUtil.ObjectToJson(resultMap), MediaType.APPLICATION_JSON);
      getResponse().setStatus(Status.SUCCESS_OK);
    }
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                                        String clusterName,
                                        String instanceName,
                                        String payloadString,
                                        String partition)
  {
    Message message = new Message("FaultInjection", UUID.randomUUID().toString());
    if(payloadString != null)
    {
      message.getRecord().setSimpleField("faultType", payloadString);
    }
    if(partition != null)
    {
      message.setPartitionName(partition);
    }
   
    post(zkServer, message, clusterName, instanceName);
  }
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  public void postTestMessage(String zkServer, String clusterName, String instanceName)
  {
    String msgSrc = "cm-instance-0";
    String msgId = "TestMessageId-2";

    Message message = new Message(MessageType.STATE_TRANSITION, msgId);
    message.setMsgId(msgId);
    message.setSrcName(msgSrc);
    message.setTgtName(instanceName);
    message.setMsgState(MessageState.NEW);
    message.setFromState("Slave");
    message.setToState("Master");
    message.setPartitionName("EspressoDB.partition-0." + instanceName);

    post(zkServer, message, clusterName, instanceName);
  }
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  @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");
//    DataAccessor accessor = manager.getDataAccessor();
    HelixDataAccessor accessor = manager.getHelixDataAccessor();
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  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");
//    DataAccessor accessor = manager.getDataAccessor();
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    List<Message> outputMessages = new ArrayList<Message>();

    Iterator<Message> iter = messages.iterator();
    while (iter.hasNext())
    {
      Message message = iter.next();
      String resourceName = message.getResourceName();
      Resource resource = resourceMap.get(resourceName);
      if (resource == null || !resource.getEnableGroupMessage())
      {
        outputMessages.add(message);
        continue;
      }

      String key =
          keyBuilder.currentState(message.getTgtName(),
                                  message.getTgtSessionId(),
                                  message.getResourceName()).getPath()
              + "/" + message.getFromState() + "/" + message.getToState();

      if (!groupMessages.containsKey(key))
      {
        Message groupMessage = new Message(message.getRecord());
        groupMessage.setGroupMessageMode(true);
        outputMessages.add(groupMessage);
        groupMessages.put(key, groupMessage);
      }
      groupMessages.get(key).addPartitionName(message.getPartitionName());
    }
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    {
      System.out
          .println("BootstrapProcess.BootstrapStateModel.offlineToSlave()");
      HelixManager manager = context.getManager();
      ClusterMessagingService messagingService = manager.getMessagingService();
      Message requestBackupUriRequest = new Message(
          MessageType.USER_DEFINE_MSG, UUID.randomUUID().toString());
      requestBackupUriRequest
          .setMsgSubType(BootstrapProcess.REQUEST_BOOTSTRAP_URL);
      requestBackupUriRequest.setMsgState(MessageState.NEW);
      Criteria recipientCriteria = new Criteria();
      recipientCriteria.setInstanceName("*");
      recipientCriteria.setRecipientInstanceType(InstanceType.PARTICIPANT);
      recipientCriteria.setResource(message.getResourceName());
      recipientCriteria.setPartition(message.getPartitionName());
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                  + partition.getPartitionName() + " on " + instanceName + ", pendingState: "
                  + pendingState + ", currentState: " + currentState + ", nextState: " + nextState);
            }
          } else
          {
            Message message = createMessage(manager, resourceName, partition.getPartitionName(),
                instanceName, currentState, nextState, sessionIdMap.get(instanceName),
                stateModelDef.getId(), resource.getStateModelFactoryname(), bucketSize);
            IdealState idealState = cache.getIdealState(resourceName);
            // Set timeout of needed
            String stateTransition = currentState + "-" + nextState + "_"
                + Message.Attributes.TIMEOUT;
            if (idealState != null
                && idealState.getRecord().getSimpleField(stateTransition) != null)
            {
              try
              {
                int timeout = Integer.parseInt(idealState.getRecord().getSimpleField(
                    stateTransition));
                if (timeout > 0)
                {
                  message.setExecutionTimeout(timeout);
                }
              } catch (Exception e)
              {
                logger.error("", e);
              }
            }
            message.getRecord().setSimpleField("ClusterEventName", event.getName());
            output.addMessage(resourceName, partition, 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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                                      String toState,
                                      String tgtName,
                                      String resourceName,
                                      String partitionName)
  {
    Message msg = new Message(MessageType.STATE_TRANSITION, msgId);
    msg.setFromState(fromState);
    msg.setToState(toState);
    msg.setTgtName(tgtName);
    msg.setResourceName(resourceName);
    msg.setPartitionName(partitionName);
    msg.setStateModelDef("MasterSlave");

    return msg;
  }
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Related Classes of com.linkedin.helix.model.Message

  • com.linkedin.helix.controller.stages.MessageGenerationPhase
  • com.linkedin.helix.controller.stages.TaskAssignmentStage
  • com.linkedin.helix.controller.stages.TestCurrentStateComputationStage
  • com.linkedin.helix.controller.stages.TestMessageThrottleStage
  • com.linkedin.helix.controller.stages.TestRebalancePipeline
  • com.linkedin.helix.examples.BootstrapHandler$BootstrapStateModel
  • com.linkedin.helix.integration.TestMessagePartitionStateMismatch
  • com.linkedin.helix.integration.TestMessageThrottle
  • com.linkedin.helix.integration.TestMessagingService
  • com.linkedin.helix.integration.TestParticipantErrorMessage
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