Package org.apache.helix.model

Examples of org.apache.helix.model.ExternalView

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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)
    // .forResource("testResource").forPartition("testPartition").build();
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    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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    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);
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    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");
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    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 {
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      @Override
      public <T extends HelixProperty> T getProperty(PropertyKey key) {

        PropertyType type = key.getType();
        if (type == PropertyType.EXTERNALVIEW || type == PropertyType.IDEALSTATES) {
          return (T) new ExternalView(_externalView);
        }
        return null;
      }
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    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
            clusterName));
    Assert.assertTrue(result);
    key = keyBuilder.externalView("TestSchemata0");
    ExternalView externalView = accessor.getProperty(key);
    Map<String, String> stateMap = externalView.getStateMap("TestSchemata0_0");
    Assert.assertNotNull(stateMap);
    Assert.assertEquals(stateMap.size(), n, "all " + n + " participants should be in Master state");
    for (int i = 0; i < n; i++) {
      String instanceName = "localhost_" + (12918 + i);
      Assert.assertNotNull(stateMap.get(instanceName));
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    boolean result = true;
    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)) {
          continue;
        }
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    // re-enable controller shall remove orphan external-view
    // System.out.println("re-enabling controller");
    admin.enableCluster(clusterName, true);

    ExternalView externalView = null;
    for (int i = 0; i < 10; i++) {
      Thread.sleep(100);
      externalView = accessor.getProperty(keyBuilder.externalView("TestDB0"));
      // System.out.println("externalView: " + externalView);
      if (externalView == null) {
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    PROCESS_LIST.get(nodeId).stop();
  }

  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())) {
          sb.append(stateMap.get(INSTANCE_CONFIG_LIST.get(i).getInstanceName()).charAt(0)).append(
              "\t\t");
        } else {
          sb.append("-").append("\t\t");
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