Package org.apache.helix

Examples of org.apache.helix.HelixDataAccessor

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          .calculateIdealState(instances, partitions, replicas,
              resourceName, "MASTER", "SLAVE");
      IdealState idealState = new IdealState(record);
      idealState.setStateModelDefRef("MasterSlave");
     
      HelixDataAccessor accessor = manager.getHelixDataAccessor();
      Builder keyBuilder = accessor.keyBuilder();
      accessor.setProperty(keyBuilder.idealStates(resourceName),
                                            idealState);


      idealStates.add(idealState);
    }
    // ADD A LIVE INSTANCE WITH A CURRENT STATE THAT CONTAINS RESOURCE WHICH NO
    // LONGER EXISTS IN IDEALSTATE
    String instanceName = "localhost_" + 3;
    LiveInstance liveInstance = new LiveInstance(instanceName);
    String sessionId = UUID.randomUUID().toString();
    liveInstance.setSessionId(sessionId);
   
    HelixDataAccessor accessor = manager.getHelixDataAccessor();
    Builder keyBuilder = accessor.keyBuilder();
    accessor.setProperty(keyBuilder.liveInstance(instanceName),
                                          liveInstance);

    String oldResource = "testResourceOld";
    CurrentState currentState = new CurrentState(oldResource);
    currentState.setState("testResourceOld_0", "OFFLINE");
    currentState.setState("testResourceOld_1", "SLAVE");
    currentState.setState("testResourceOld_2", "MASTER");
    currentState.setStateModelDefRef("MasterSlave");
    accessor.setProperty(keyBuilder.currentState(instanceName, sessionId, oldResource),
                                          currentState);

    ResourceComputationStage stage = new ResourceComputationStage();
    runStage(event, new ReadClusterDataStage());
    runStage(event, stage);
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  {
    @Override
    public void doTransition(Message message, NotificationContext context)
    {
      HelixManager manager = context.getManager();
      HelixDataAccessor accessor = manager.getHelixDataAccessor();
      String fromState = message.getFromState();
      String toState = message.getToState();
      String instance = message.getTgtName();
      String partition = message.getPartitionName();
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  {
    String alert =
        EXP + "(accumulate()(dbFoo.partition10.latency))" + CMP + "(GREATER)" + CON
            + "(10)";
    _alertsHolder.addAlert(alert);
    HelixDataAccessor accessor = _helixManager.getHelixDataAccessor();
    Builder keyBuilder = accessor.keyBuilder();

    ZNRecord rec = accessor.getProperty(keyBuilder.alerts()).getRecord();
    System.out.println("alert: " + alert);
    System.out.println("rec: " + rec.toString());
    AssertJUnit.assertTrue(alertRecordContains(rec, alert));
    AssertJUnit.assertEquals(1, alertsSize(rec));
  }
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        EXP + "(accumulate()(dbFoo.partition10.latency))" + CMP + "(GREATER)" + CON
            + "(100)";
    _alertsHolder.addAlert(alert1);
    _alertsHolder.addAlert(alert2);

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

    ZNRecord rec = accessor.getProperty(keyBuilder.alerts()).getRecord();
    // System.out.println("alert: "+alert1);
    System.out.println("rec: " + rec.toString());
    AssertJUnit.assertTrue(alertRecordContains(rec, alert1));
    AssertJUnit.assertTrue(alertRecordContains(rec, alert2));
    AssertJUnit.assertEquals(2, alertsSize(rec));
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  {
    String alert1 =
        EXP + "(accumulate()(dbFoo.partition*.put*))" + CMP + "(GREATER)" + CON + "(10)";
    _alertsHolder.addAlert(alert1);
   
    HelixDataAccessor accessor = _helixManager.getHelixDataAccessor();
    Builder keyBuilder = accessor.keyBuilder();

    ZNRecord rec = accessor.getProperty(keyBuilder.alerts()).getRecord();
    // System.out.println("alert: "+alert1);
    System.out.println("rec: " + rec.toString());
    AssertJUnit.assertTrue(alertRecordContains(rec, alert1));
    AssertJUnit.assertEquals(1, alertsSize(rec));
  }
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  {
    @Override
    public void doTransition(Message message, NotificationContext context)
    {
      HelixManager manager = context.getManager();
      HelixDataAccessor accessor = manager.getHelixDataAccessor();
      String fromState = message.getFromState();
      String toState = message.getToState();
      String instance = message.getTgtName();
      String partition = message.getPartitionName();
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  {
    String clusterName = "CLUSTER_" + _className + "_basic";
    System.out.println("START " + clusterName + " at "
        + new Date(System.currentTimeMillis()));

    HelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor(_gZkClient));
    HelixManager manager = new DummyClusterManager(clusterName, accessor);

    // ideal state: node0 is MASTER, node1 is SLAVE
    // replica=2 means 1 master and 1 slave
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  {
    String clusterName = "CLUSTER_" + _className + "_constraints";
    System.out.println("START " + clusterName + " at "
        + new Date(System.currentTimeMillis()));

    HelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor(_gZkClient));
    HelixManager manager = new DummyClusterManager(clusterName, accessor);

    // ideal state: node0 is MASTER, node1 is SLAVE
    // replica=2 means 1 master and 1 slave
    setupIdealState(clusterName, new int[] { 0, 1 }, new String[] { "TestDB" }, 1, 2);
    setupLiveInstances(clusterName, new int[] { 0, 1 });
    setupStateModel(clusterName);

    // setup constraints
    ZNRecord record = new ZNRecord(ConstraintType.MESSAGE_CONSTRAINT.toString());

    // constraint0:
    // "MESSAGE_TYPE=STATE_TRANSITION,CONSTRAINT_VALUE=ANY"
    record.setMapField("constraint0", new TreeMap<String, String>());
    record.getMapField("constraint0").put("MESSAGE_TYPE", "STATE_TRANSITION");
    record.getMapField("constraint0").put("CONSTRAINT_VALUE", "ANY");
    ConstraintItem constraint0 = new ConstraintItem(record.getMapField("constraint0"));

    // constraint1:
    // "MESSAGE_TYPE=STATE_TRANSITION,TRANSITION=OFFLINE-SLAVE,CONSTRAINT_VALUE=ANY"
    record.setMapField("constraint1", new TreeMap<String, String>());
    record.getMapField("constraint1").put("MESSAGE_TYPE", "STATE_TRANSITION");
    record.getMapField("constraint1").put("TRANSITION", "OFFLINE-SLAVE");
    record.getMapField("constraint1").put("CONSTRAINT_VALUE", "50");
    ConstraintItem constraint1 = new ConstraintItem(record.getMapField("constraint1"));

    // constraint2:
    // "MESSAGE_TYPE=STATE_TRANSITION,TRANSITION=OFFLINE-SLAVE,INSTANCE=.*,RESOURCE=TestDB,CONSTRAINT_VALUE=2";
    record.setMapField("constraint2", new TreeMap<String, String>());
    record.getMapField("constraint2").put("MESSAGE_TYPE", "STATE_TRANSITION");
    record.getMapField("constraint2").put("TRANSITION", "OFFLINE-SLAVE");
    record.getMapField("constraint2").put("INSTANCE", ".*");
    record.getMapField("constraint2").put("RESOURCE", "TestDB");
    record.getMapField("constraint2").put("CONSTRAINT_VALUE", "2");
    ConstraintItem constraint2 = new ConstraintItem(record.getMapField("constraint2"));

    // constraint3:
    // "MESSAGE_TYPE=STATE_TRANSITION,TRANSITION=OFFLINE-SLAVE,INSTANCE=localhost_12918,RESOURCE=.*,CONSTRAINT_VALUE=1";
    record.setMapField("constraint3", new TreeMap<String, String>());
    record.getMapField("constraint3").put("MESSAGE_TYPE", "STATE_TRANSITION");
    record.getMapField("constraint3").put("TRANSITION", "OFFLINE-SLAVE");
    record.getMapField("constraint3").put("INSTANCE", "localhost_1");
    record.getMapField("constraint3").put("RESOURCE", ".*");
    record.getMapField("constraint3").put("CONSTRAINT_VALUE", "1");
    ConstraintItem constraint3 = new ConstraintItem(record.getMapField("constraint3"));

    // constraint4:
    // "MESSAGE_TYPE=STATE_TRANSITION,TRANSITION=OFFLINE-SLAVE,INSTANCE=.*,RESOURCE=.*,CONSTRAINT_VALUE=10"
    record.setMapField("constraint4", new TreeMap<String, String>());
    record.getMapField("constraint4").put("MESSAGE_TYPE", "STATE_TRANSITION");
    record.getMapField("constraint4").put("TRANSITION", "OFFLINE-SLAVE");
    record.getMapField("constraint4").put("INSTANCE", ".*");
    record.getMapField("constraint4").put("RESOURCE", ".*");
    record.getMapField("constraint4").put("CONSTRAINT_VALUE", "10");
    ConstraintItem constraint4 = new ConstraintItem(record.getMapField("constraint4"));

    // constraint5:
    // "MESSAGE_TYPE=STATE_TRANSITION,TRANSITION=OFFLINE-SLAVE,INSTANCE=localhost_12918,RESOURCE=TestDB,CONSTRAINT_VALUE=5"
    record.setMapField("constraint5", new TreeMap<String, String>());
    record.getMapField("constraint5").put("MESSAGE_TYPE", "STATE_TRANSITION");
    record.getMapField("constraint5").put("TRANSITION", "OFFLINE-SLAVE");
    record.getMapField("constraint5").put("INSTANCE", "localhost_0");
    record.getMapField("constraint5").put("RESOURCE", "TestDB");
    record.getMapField("constraint5").put("CONSTRAINT_VALUE", "3");
    ConstraintItem constraint5 = new ConstraintItem(record.getMapField("constraint5"));

    Builder keyBuilder = accessor.keyBuilder();
    accessor.setProperty(keyBuilder.constraint(ConstraintType.MESSAGE_CONSTRAINT.toString()),
                         new ClusterConstraints(record));

    // ClusterConstraints constraint =
    // accessor.getProperty(ClusterConstraints.class,
    // PropertyType.CONFIGS,
    // ConfigScopeProperty.CONSTRAINT.toString(),
    // ConstraintType.MESSAGE_CONSTRAINT.toString());
    ClusterConstraints constraint =
        accessor.getProperty(keyBuilder.constraint(ConstraintType.MESSAGE_CONSTRAINT.toString()));

    MessageThrottleStage throttleStage = new MessageThrottleStage();

    // test constraintSelection
    // message1: hit contraintSelection rule1 and rule2
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  {
    @Override
    public void doTransition(Message message, NotificationContext context)
    {
      HelixManager manager = context.getManager();
      HelixDataAccessor accessor = manager.getHelixDataAccessor();
      String fromState = message.getFromState();
      String toState = message.getToState();
      String instance = message.getTgtName();
      String partition = message.getPartitionName();
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      Map<String, String> valMap = new HashMap<String, String>();
      valMap.put(metricName1, val1[i] + "");
      valMap.put(metricName2, val2[i] + "");
      record.setSimpleField("TimeStamp", new Date().getTime() + "");
      record.setMapField(_statName, valMap);
      HelixDataAccessor helixDataAccessor = manager.getHelixDataAccessor();
      Builder keyBuilder = helixDataAccessor.keyBuilder();
      helixDataAccessor
        .setProperty(keyBuilder.healthReport( manager.getInstanceName(), record.getId()), new HealthStat(record)); 
    }
    try
    {
      Thread.sleep(1000);
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