Package org.apache.helix.model

Examples of org.apache.helix.model.ExternalView

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    ZkBaseDataAccessor<ZNRecord> baseAccessor =
        new ZkBaseDataAccessor<ZNRecord>(zkclient);
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, baseAccessor);
    Builder keyBuilder = accessor.keyBuilder();

    ExternalView extView = accessor.getProperty(keyBuilder.externalView(resourceName));
    Map<String, Map<String, String>> actualStateMap = extView.getRecord().getMapFields();
    for (String partition : actualStateMap.keySet())
    {
      for (String expectPartiton : expectStateMap.keySet())
      {
        if (!partition.matches(expectPartiton))
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      // OK
    }
    list = tool.getResourcesInCluster(clusterName);
    AssertJUnit.assertEquals(list.size(), 0);

    ExternalView resourceExternalView = tool.getResourceExternalView(
        clusterName, "resource");
    AssertJUnit.assertNull(resourceExternalView);

    // test config support
    ConfigScope scope = new ConfigScopeBuilder().forCluster(clusterName)
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    List<ExternalView> newExtViews = new ArrayList<ExternalView>();
    List<PropertyKey> keys = new ArrayList<PropertyKey>();

    for (String resourceName : resourceMap.keySet())
    {
      ExternalView view = new ExternalView(resourceName);
      // view.setBucketSize(currentStateOutput.getBucketSize(resourceName));
      // if resource ideal state has bucket size, set it
      // otherwise resource has been dropped, use bucket size from current state instead
      Resource resource = resourceMap.get(resourceName);
      if (resource.getBucketSize() > 0)
      {
        view.setBucketSize(resource.getBucketSize());
      }
      else
      {
        view.setBucketSize(currentStateOutput.getBucketSize(resourceName));
      }

      for (Partition partition : resource.getPartitions())
      {
        Map<String, String> currentStateMap =
            currentStateOutput.getCurrentStateMap(resourceName, partition);
        if (currentStateMap != null && currentStateMap.size() > 0)
        {
          // Set<String> disabledInstances
          // = cache.getDisabledInstancesForResource(resource.toString());
          for (String instance : currentStateMap.keySet())
          {
            // if (!disabledInstances.contains(instance))
            // {
            view.setState(partition.getPartitionName(),
                          instance,
                          currentStateMap.get(instance));
            // }
          }
        }
      }
      // Update cluster status monitor mbean
      ClusterStatusMonitor clusterStatusMonitor =
          (ClusterStatusMonitor) event.getAttribute("clusterStatusMonitor");
      if (clusterStatusMonitor != null)
      {
        clusterStatusMonitor.onExternalViewChange(view,
                                                  cache._idealStateMap.get(view.getResourceName()));
      }

      // compare the new external view with current one, set only on different
      Map<String, ExternalView> curExtViews =
          dataAccessor.getChildValuesMap(manager.getHelixDataAccessor()
                                                .keyBuilder()
                                                .externalViews());

      ExternalView curExtView = curExtViews.get(resourceName);
      if (curExtView == null || !curExtView.getRecord().equals(view.getRecord()))
      {
        keys.add(manager.getHelixDataAccessor().keyBuilder().externalView(resourceName));
        newExtViews.add(view);
        // dataAccessor.setProperty(PropertyType.EXTERNALVIEW, view,
        // resourceName);
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  }

  private static void printState(String msg)
  {
    System.out.println("CLUSTER STATE: "+ msg);
    ExternalView resourceExternalView = admin.getResourceExternalView(
        CLUSTER_NAME, RESOURCE_NAME);
    TreeSet<String> sortedSet = new TreeSet<String>(
        resourceExternalView.getPartitionSet());
    StringBuilder sb = new StringBuilder("\t\t");
    for (int i = 0; i < NUM_NODES; i++)
    {
      sb.append(INSTANCE_CONFIG_LIST.get(i).getInstanceName()).append("\t");
    }
    System.out.println(sb);
    for (String partitionName : sortedSet)
    {
      sb.delete(0, sb.length() - 1);
      sb.append(partitionName).append("\t");
      for (int i = 0; i < NUM_NODES; i++)
      {
        Map<String, String> stateMap = resourceExternalView
            .getStateMap(partitionName);
        if (stateMap != null
            && stateMap.containsKey(INSTANCE_CONFIG_LIST.get(i)
                .getInstanceName()))
        {
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      int replicas, String dbName, long randomSeed)
  {
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor(client));
    Builder keyBuilder = accessor.keyBuilder();

    ExternalView externalView = new ExternalView(computeRoutingTable(instanceNames, partitions,
                                                                     replicas, dbName, randomSeed));

    accessor.setProperty(keyBuilder.externalView(dbName), externalView);
  }
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    MockHelixManager manager = new MockHelixManager();
    ResourceMonitor monitor = new ResourceMonitor(_clusterName, _dbName);

    HelixDataAccessor helixDataAccessor = manager.getHelixDataAccessor();
    Builder keyBuilder = helixDataAccessor.keyBuilder();
    ExternalView externalView =
        helixDataAccessor.getProperty(keyBuilder.externalView(_dbName));
    IdealState idealState = helixDataAccessor.getProperty(keyBuilder.idealStates(_dbName));

    monitor.updateExternalView(externalView, idealState);

    AssertJUnit.assertEquals(monitor.getDifferenceWithIdealStateGauge(), 0);
    AssertJUnit.assertEquals(monitor.getErrorPartitionGauge(), 0);
    AssertJUnit.assertEquals(monitor.getExternalViewPartitionGauge(), _partitions);
    AssertJUnit.assertEquals(monitor.getPartitionGauge(), _partitions);
    monitor.getBeanName();

    int n = 4;
    for (int i = 0; i < n; i++)
    {
      Map<String, String> map = externalView.getStateMap(_dbName + "_" + 3 * i);
      String key = map.keySet().toArray()[0].toString();
      map.put(key, "ERROR");
      externalView.setStateMap(_dbName + "_" + 3 * i, map);
    }

    monitor.updateExternalView(externalView, idealState);
    AssertJUnit.assertEquals(monitor.getDifferenceWithIdealStateGauge(), 0);
    AssertJUnit.assertEquals(monitor.getErrorPartitionGauge(), n);
    AssertJUnit.assertEquals(monitor.getExternalViewPartitionGauge(), _partitions);
    AssertJUnit.assertEquals(monitor.getPartitionGauge(), _partitions);

    n = 5;
    for (int i = 0; i < n; i++)
    {
      externalView.getRecord().getMapFields().remove(_dbName + "_" + 4 * i);
    }

    monitor.updateExternalView(externalView, idealState);
    AssertJUnit.assertEquals(monitor.getDifferenceWithIdealStateGauge(), n
        * (_replicas + 1));
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      public  <T extends HelixProperty> T  getProperty(PropertyKey key)
      {
        PropertyType type = key.getType();
        if (type == PropertyType.EXTERNALVIEW)
        {
          return (T) new ExternalView(_externalView);
        }
        else if (type == PropertyType.IDEALSTATES)
        {
          return (T) new IdealState(_idealState);
        }
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        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                 CLUSTER_NAME));
    Assert.assertTrue(result);

    Builder kb = manager.getHelixDataAccessor().keyBuilder();
    ExternalView externalView = manager.getHelixDataAccessor().getProperty(kb.externalView("TestDB"));
    // Test the DISABLE_INSTANCE alerts
    String participant1 = "localhost_" + (START_PORT + 3);
    String participant2 = "localhost_" + (START_PORT + 2);
    ConfigAccessor configAccessor = manager.getConfigAccessor();
    scope = new ConfigScopeBuilder().forCluster(manager.getClusterName()).forParticipant(participant1).build();
    String isEnabled = configAccessor.get(scope, "HELIX_ENABLED");
    Assert.assertFalse(Boolean.parseBoolean(isEnabled));

    scope = new ConfigScopeBuilder().forCluster(manager.getClusterName()).forParticipant(participant2).build();
    isEnabled = configAccessor.get(scope, "HELIX_ENABLED");
    Assert.assertFalse(Boolean.parseBoolean(isEnabled));

    for(String partitionName : externalView.getRecord().getMapFields().keySet())
    {
      for(String hostName :  externalView.getRecord().getMapField(partitionName).keySet())
      {
        if(hostName.equals(participant1) || hostName.equals(participant2))
        {
          Assert.assertEquals(externalView.getRecord().getMapField(partitionName).get(hostName), "OFFLINE");
        }
      }
    }

    // enable the disabled instances
    setHealthData(metrics3, metrics3);
    task.run();
    Thread.sleep(1000);

    manager.getClusterManagmentTool().enableInstance(manager.getClusterName(), participant2, true);
    manager.getClusterManagmentTool().enableInstance(manager.getClusterName(), participant1, true);

    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                 CLUSTER_NAME));
    Assert.assertTrue(result);

    // Test the DISABLE_PARTITION case
    int[] metrics4 = {22, 115, 22, 16,163};
    setHealthData2(metrics4);
    task.run();

    scope = new ConfigScopeBuilder().forCluster(manager.getClusterName()).forParticipant(participant1).build();
    isEnabled = configAccessor.get(scope, "HELIX_ENABLED");
    Assert.assertTrue(Boolean.parseBoolean(isEnabled));

    scope = new ConfigScopeBuilder().forCluster(manager.getClusterName()).forParticipant(participant2).build();
    isEnabled = configAccessor.get(scope, "HELIX_ENABLED");
    Assert.assertTrue(Boolean.parseBoolean(isEnabled));

    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                 CLUSTER_NAME));
    Assert.assertTrue(result);
    String participant3 = "localhost_" + (START_PORT + 4);
    externalView = manager.getHelixDataAccessor().getProperty(kb.externalView("TestDB"));
    Assert.assertTrue(externalView.getRecord().getMapField("TestDB_3").get(participant3).equalsIgnoreCase("OFFLINE"));

    InstanceConfig nodeConfig =
        helixDataAccessor.getProperty(keyBuilder.instanceConfig(participant3));
    Assert.assertTrue(
        nodeConfig.getRecord().getListField(InstanceConfigProperty.HELIX_DISABLED_PARTITION.toString())
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      {
       
        PropertyType type = key.getType();
        if(type == PropertyType.EXTERNALVIEW || type == PropertyType.IDEALSTATES)
        {
          return (T) new ExternalView(_externalView);
        }
        return null;
      }
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    testListener.Reset();
    HelixDataAccessor accessor = testHelixManager.getHelixDataAccessor();
    Builder keyBuilder = accessor.keyBuilder();
   
    ExternalView extView = new ExternalView("db-12345");
    accessor.setProperty(keyBuilder.externalView("db-12345"), extView);
    Thread.sleep(100);
    AssertJUnit.assertTrue(testListener.externalViewChangeReceived);
    testListener.Reset();
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