Package org.apache.helix.spectator

Examples of org.apache.helix.spectator.RoutingTableProvider

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  @Test()
  public void testStateUnitGroupDeletion()
  {
    List<InstanceConfig> instances;
    RoutingTableProvider routingTable = new RoutingTableProvider();

    List<ExternalView> externalViewList = new ArrayList<ExternalView>();
    ZNRecord record = new ZNRecord("TESTDB");

    // one master
    add(record, "TESTDB_0", "localhost_8900", "MASTER");
    externalViewList.add(new ExternalView(record));
    routingTable.onExternalViewChange(externalViewList, changeContext);
    instances = routingTable.getInstances("TESTDB", "TESTDB_0", "MASTER");
    AssertJUnit.assertNotNull(instances);
    AssertJUnit.assertEquals(instances.size(), 1);

    externalViewList.clear();
    routingTable.onExternalViewChange(externalViewList, changeContext);
    instances = routingTable.getInstances("TESTDB", "TESTDB_0", "MASTER");
    AssertJUnit.assertNotNull(instances);
    AssertJUnit.assertEquals(instances.size(), 0);
  }
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  public void testGetInstanceForAllStateUnits()
  {
    List<InstanceConfig> instancesList;
    Set<InstanceConfig> instancesSet;
    InstanceConfig instancesArray[];
    RoutingTableProvider routingTable = new RoutingTableProvider();
    List<ExternalView> externalViewList = new ArrayList<ExternalView>();
    ZNRecord record = new ZNRecord("TESTDB");

    // one master
    add(record, "TESTDB_0", "localhost_8900", "MASTER");
    add(record, "TESTDB_1", "localhost_8900", "MASTER");
    add(record, "TESTDB_2", "localhost_8900", "MASTER");
    add(record, "TESTDB_3", "localhost_8900", "SLAVE");
    add(record, "TESTDB_4", "localhost_8900", "SLAVE");
    add(record, "TESTDB_5", "localhost_8900", "SLAVE");

    add(record, "TESTDB_0", "localhost_8901", "SLAVE");
    add(record, "TESTDB_1", "localhost_8901", "SLAVE");
    add(record, "TESTDB_2", "localhost_8901", "SLAVE");
    add(record, "TESTDB_3", "localhost_8901", "MASTER");
    add(record, "TESTDB_4", "localhost_8901", "MASTER");
    add(record, "TESTDB_5", "localhost_8901", "MASTER");

    externalViewList.add(new ExternalView(record));
    routingTable.onExternalViewChange(externalViewList, changeContext);
    instancesList = routingTable.getInstances("TESTDB", "TESTDB_0", "MASTER");
    AssertJUnit.assertNotNull(instancesList);
    AssertJUnit.assertEquals(instancesList.size(), 1);
    instancesSet = routingTable.getInstances("TESTDB", "MASTER");
    AssertJUnit.assertNotNull(instancesSet);
    AssertJUnit.assertEquals(instancesSet.size(), 2);
    instancesSet = routingTable.getInstances("TESTDB", "SLAVE");
    AssertJUnit.assertNotNull(instancesSet);
    AssertJUnit.assertEquals(instancesSet.size(), 2);
    instancesArray = new InstanceConfig[instancesSet.size()];
    instancesSet.toArray(instancesArray);
    AssertJUnit.assertEquals(instancesArray[0].getHostName(), "localhost");
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  }

  @Test()
  public void testMultiThread() throws Exception
  {
    final RoutingTableProvider routingTable = new RoutingTableProvider();
    List<ExternalView> externalViewList = new ArrayList<ExternalView>();
    ZNRecord record = new ZNRecord("TESTDB");
    for (int i = 0; i < 1000; i++)
    {
      add(record, "TESTDB_" + i, "localhost_8900", "MASTER");
    }
    externalViewList.add(new ExternalView(record));
    routingTable.onExternalViewChange(externalViewList, changeContext);
    Callable<Boolean> runnable = new Callable<Boolean>() {
      @Override
      public Boolean call() throws Exception
      {

        try
        {
          int count = 0;
          while (count < 100)
          {
            List<InstanceConfig> instancesList = routingTable.getInstances("TESTDB", "TESTDB_0",
                "MASTER");
            AssertJUnit.assertEquals(instancesList.size(), 1);
            // System.out.println(System.currentTimeMillis() + "-->"
            // + instancesList.size());

            Thread.sleep(5);

            count++;
          }
        } catch (InterruptedException e)
        {
          // e.printStackTrace();
        }
        return true;
      }
    };
    ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor();
    Future<Boolean> submit = executor.submit(runnable);
    int count = 0;
    while (count < 10)
    {
      try
      {
        Thread.sleep(10);
      } catch (InterruptedException e)
      {
        e.printStackTrace();
      }
      routingTable.onExternalViewChange(externalViewList, changeContext);
      count++;
    }

    Boolean result = submit.get(60, TimeUnit.SECONDS);
    AssertJUnit.assertEquals(result, Boolean.TRUE);
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  @Test()
  public void testNullAndEmpty()
  {

    RoutingTableProvider routingTable = new RoutingTableProvider();
    routingTable.onExternalViewChange(null, changeContext);
    List<ExternalView> list = Collections.emptyList();
    routingTable.onExternalViewChange(list, changeContext);

  }
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  @Test()
  public void testSimple()
  {
    List<InstanceConfig> instances;
    RoutingTableProvider routingTable = new RoutingTableProvider();
    ZNRecord record = new ZNRecord("TESTDB");

    // one master
    add(record, "TESTDB_0", "localhost_8900", "MASTER");
    List<ExternalView> externalViewList = new ArrayList<ExternalView>();
    externalViewList.add(new ExternalView(record));
    routingTable.onExternalViewChange(externalViewList, changeContext);

    instances = routingTable.getInstances("TESTDB", "TESTDB_0", "MASTER");
    AssertJUnit.assertNotNull(instances);
    AssertJUnit.assertEquals(instances.size(), 1);

    // additions
    add(record, "TESTDB_0", "localhost_8901", "MASTER");
    add(record, "TESTDB_1", "localhost_8900", "SLAVE");

    externalViewList = new ArrayList<ExternalView>();
    externalViewList.add(new ExternalView(record));
    routingTable.onExternalViewChange(externalViewList, changeContext);
    instances = routingTable.getInstances("TESTDB", "TESTDB_0", "MASTER");
    AssertJUnit.assertNotNull(instances);
    AssertJUnit.assertEquals(instances.size(), 2);

    instances = routingTable.getInstances("TESTDB", "TESTDB_1", "SLAVE");
    AssertJUnit.assertNotNull(instances);
    AssertJUnit.assertEquals(instances.size(), 1);

    // updates
    add(record, "TESTDB_0", "localhost_8901", "SLAVE");
    externalViewList = new ArrayList<ExternalView>();
    externalViewList.add(new ExternalView(record));
    routingTable.onExternalViewChange(externalViewList, changeContext);
    instances = routingTable.getInstances("TESTDB", "TESTDB_0", "SLAVE");
    AssertJUnit.assertNotNull(instances);
    AssertJUnit.assertEquals(instances.size(), 1);
  }
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  private final RoutingTableProvider _routingTableProvider;
  private static ZkServer zkServer;

  public MockSpectatorProcess()
  {
    _routingTableProvider = new RoutingTableProvider();
  }
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  }

  @Test()
  public void testNullAndEmpty() {

    RoutingTableProvider routingTable = new RoutingTableProvider();
    routingTable.onExternalViewChange(null, changeContext);
    List<ExternalView> list = Collections.emptyList();
    routingTable.onExternalViewChange(list, changeContext);

  }
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  }

  @Test()
  public void testSimple() {
    List<InstanceConfig> instances;
    RoutingTableProvider routingTable = new RoutingTableProvider();
    ZNRecord record = new ZNRecord("TESTDB");

    // one master
    add(record, "TESTDB_0", "localhost_8900", "MASTER");
    List<ExternalView> externalViewList = new ArrayList<ExternalView>();
    externalViewList.add(new ExternalView(record));
    routingTable.onExternalViewChange(externalViewList, changeContext);

    instances = routingTable.getInstances("TESTDB", "TESTDB_0", "MASTER");
    AssertJUnit.assertNotNull(instances);
    AssertJUnit.assertEquals(instances.size(), 1);

    // additions
    add(record, "TESTDB_0", "localhost_8901", "MASTER");
    add(record, "TESTDB_1", "localhost_8900", "SLAVE");

    externalViewList = new ArrayList<ExternalView>();
    externalViewList.add(new ExternalView(record));
    routingTable.onExternalViewChange(externalViewList, changeContext);
    instances = routingTable.getInstances("TESTDB", "TESTDB_0", "MASTER");
    AssertJUnit.assertNotNull(instances);
    AssertJUnit.assertEquals(instances.size(), 2);

    instances = routingTable.getInstances("TESTDB", "TESTDB_1", "SLAVE");
    AssertJUnit.assertNotNull(instances);
    AssertJUnit.assertEquals(instances.size(), 1);

    // updates
    add(record, "TESTDB_0", "localhost_8901", "SLAVE");
    externalViewList = new ArrayList<ExternalView>();
    externalViewList.add(new ExternalView(record));
    routingTable.onExternalViewChange(externalViewList, changeContext);
    instances = routingTable.getInstances("TESTDB", "TESTDB_0", "SLAVE");
    AssertJUnit.assertNotNull(instances);
    AssertJUnit.assertEquals(instances.size(), 1);
  }
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  }

  @Test()
  public void testStateUnitGroupDeletion() {
    List<InstanceConfig> instances;
    RoutingTableProvider routingTable = new RoutingTableProvider();

    List<ExternalView> externalViewList = new ArrayList<ExternalView>();
    ZNRecord record = new ZNRecord("TESTDB");

    // one master
    add(record, "TESTDB_0", "localhost_8900", "MASTER");
    externalViewList.add(new ExternalView(record));
    routingTable.onExternalViewChange(externalViewList, changeContext);
    instances = routingTable.getInstances("TESTDB", "TESTDB_0", "MASTER");
    AssertJUnit.assertNotNull(instances);
    AssertJUnit.assertEquals(instances.size(), 1);

    externalViewList.clear();
    routingTable.onExternalViewChange(externalViewList, changeContext);
    instances = routingTable.getInstances("TESTDB", "TESTDB_0", "MASTER");
    AssertJUnit.assertNotNull(instances);
    AssertJUnit.assertEquals(instances.size(), 0);
  }
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  @Test()
  public void testGetInstanceForAllStateUnits() {
    List<InstanceConfig> instancesList;
    Set<InstanceConfig> instancesSet;
    InstanceConfig instancesArray[];
    RoutingTableProvider routingTable = new RoutingTableProvider();
    List<ExternalView> externalViewList = new ArrayList<ExternalView>();
    ZNRecord record = new ZNRecord("TESTDB");

    // one master
    add(record, "TESTDB_0", "localhost_8900", "MASTER");
    add(record, "TESTDB_1", "localhost_8900", "MASTER");
    add(record, "TESTDB_2", "localhost_8900", "MASTER");
    add(record, "TESTDB_3", "localhost_8900", "SLAVE");
    add(record, "TESTDB_4", "localhost_8900", "SLAVE");
    add(record, "TESTDB_5", "localhost_8900", "SLAVE");

    add(record, "TESTDB_0", "localhost_8901", "SLAVE");
    add(record, "TESTDB_1", "localhost_8901", "SLAVE");
    add(record, "TESTDB_2", "localhost_8901", "SLAVE");
    add(record, "TESTDB_3", "localhost_8901", "MASTER");
    add(record, "TESTDB_4", "localhost_8901", "MASTER");
    add(record, "TESTDB_5", "localhost_8901", "MASTER");

    externalViewList.add(new ExternalView(record));
    routingTable.onExternalViewChange(externalViewList, changeContext);
    instancesList = routingTable.getInstances("TESTDB", "TESTDB_0", "MASTER");
    AssertJUnit.assertNotNull(instancesList);
    AssertJUnit.assertEquals(instancesList.size(), 1);
    instancesSet = routingTable.getInstances("TESTDB", "MASTER");
    AssertJUnit.assertNotNull(instancesSet);
    AssertJUnit.assertEquals(instancesSet.size(), 2);
    instancesSet = routingTable.getInstances("TESTDB", "SLAVE");
    AssertJUnit.assertNotNull(instancesSet);
    AssertJUnit.assertEquals(instancesSet.size(), 2);
    instancesArray = new InstanceConfig[instancesSet.size()];
    instancesSet.toArray(instancesArray);
    AssertJUnit.assertEquals(instancesArray[0].getHostName(), "localhost");
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Related Classes of org.apache.helix.spectator.RoutingTableProvider

  • org.apache.helix.HelixDataAccessor
  • org.apache.helix.integration.TestCorrectnessOnConnectivityLoss
  • org.apache.helix.mock.spectator.MockSpectatorProcess
  • org.apache.helix.model.InstanceConfig
  • org.apache.helix.PropertyKey.Builder
  • org.apache.helix.TestRoutingTable
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