Examples of com.linkedin.d2.discovery.stores.zk.ZKConnection

Package com.linkedin.d2.discovery.stores.zk

Examples of com.linkedin.d2.discovery.stores.zk.ZKConnection

com.linkedin.d2.balancer.properties.ClusterPropertiesJsonSerializer
Very very lightweight holder for a ZK connection which allows monitoring of the connection state. It uses the default watcher for connection state monitoring. Do NOT set a different default watcher on this connection. Use of the async methods that set a watch to be delivered to the default watcher is discouraged, as such watches will be ignored when triggered. @author Steven Ihde @version $Revision: $

                  _config.clientServicesConfig,
                  _config.d2ServicePath);


    final LoadBalancerWithFacilities loadBalancer = loadBalancerFactory.create(cfg);


    D2Client d2Client = new DynamicClient(loadBalancer, loadBalancer);


    /**
     * If we created default transport client factories, we need to shut them down when d2Client
     * is being shut down.
     */

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  public TrackerClient getClient(String serviceName, URI uri)
  {
    if (_partitionDescriptions.get(uri) != null)
    {
      // shorten the update interval to 20ms in order to increase the possibility of deadlock
      _trackerClients.putIfAbsent(uri, new TrackerClient(uri, _partitionDescriptions.get(uri), null, new SettableClock(), null, 20));


      return _trackerClients.get(uri);
    }
    return null;
  }

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  @Override
  public TrackerClient getClient(String clusterName, URI uri)
  {
    Map<Integer, PartitionData> partitionDataMap = new HashMap<Integer, PartitionData>(2);
    partitionDataMap.put(DefaultPartitionAccessor.DEFAULT_PARTITION_ID, new PartitionData(1));
    return (getClient) ? new TrackerClient(uri, partitionDataMap, new TestClient()) : null;
  }

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  @Override
  public TrackerClient getClient(String clusterName, URI uri)
  {
    Map<Integer, PartitionData> partitionDataMap = new HashMap<Integer, PartitionData>(2);
    partitionDataMap.put(DefaultPartitionAccessor.DEFAULT_PARTITION_ID, new PartitionData(1));
    return (getClient) ? new TrackerClient(uri, partitionDataMap, new TestClient()) : null;
  }

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  }


  @Override
  public TransportClient getClient(String clusterName, String Scheme)
  {
    return (getClient) ? new TestClient() : null;
  }

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  @Test
  public void testPathAppend()
  {
    URI uri = URI.create("http://test.linkedin.com:9876/test");
    String serviceName = "HistoryService";
    TestClient wrappedClient = new TestClient();
    RewriteClient client = new RewriteClient(serviceName, uri, wrappedClient);


    assertEquals(client.getUri(), uri);
    assertEquals(client.getServiceName(), serviceName);
    assertEquals(client.getWrappedClient(), wrappedClient);

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  @Override
  public LoadBalancerStateItem<ClusterProperties> getClusterProperties(String clusterName)
  {
    List<String> prioritizedSchemes = new ArrayList<String>();
    prioritizedSchemes.add("http");
    ClusterProperties clusterProperties = new ClusterProperties(_cluster, prioritizedSchemes);
    return new LoadBalancerStateItem<ClusterProperties>(clusterProperties, 1, 1);
  }

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  @Override
  public LoadBalancerStateItem<ClusterProperties> getClusterProperties(String clusterName)
  {
    return (getClusterProperties)
        ? new LoadBalancerStateItem<ClusterProperties>(new ClusterProperties("cluster-1"),
                                                       0,
                                                       0) : null;
  }

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    _zkConnection.start();


    try
    {
      _log.info("Cluster configuration:\n" + clusters);
      writeConfig(ZKFSUtil.clusterPath(_basePath), new ClusterPropertiesJsonSerializer(),
                  new ClusterPropertiesJsonSerializer(), clusters, _clusterDefaults);
      _log.info("Wrote cluster configuration");


      _log.info("Service configuration:\n" + services);
      writeConfig(ZKFSUtil.servicePath(_basePath), new ServicePropertiesJsonSerializer(),
                  new ServicePropertiesJsonSerializer(), services, _serviceDefaults);

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  @Override
  public TogglingLoadBalancer createLoadBalancer(ZKConnection zkConnection, ScheduledExecutorService executorService)
  {
    _log.info("Using d2ServicePath: " + _d2ServicePath);
    ZooKeeperPermanentStore<ClusterProperties> zkClusterRegistry = createPermanentStore(
            zkConnection, ZKFSUtil.clusterPath(_baseZKPath), new ClusterPropertiesJsonSerializer());
    ZooKeeperPermanentStore<ServiceProperties> zkServiceRegistry = createPermanentStore(
            zkConnection, ZKFSUtil.servicePath(_baseZKPath, _d2ServicePath), new ServicePropertiesJsonSerializer());
    ZooKeeperEphemeralStore<UriProperties> zkUriRegistry =  createEphemeralStore(
            zkConnection, ZKFSUtil.uriPath(_baseZKPath), new UriPropertiesJsonSerializer(), new UriPropertiesMerger());


    FileStore<ClusterProperties> fsClusterStore = createFileStore("clusters", new ClusterPropertiesJsonSerializer());
    FileStore<ServiceProperties> fsServiceStore = createFileStore(_d2ServicePath, new ServicePropertiesJsonSerializer());
    FileStore<UriProperties> fsUriStore = createFileStore("uris", new UriPropertiesJsonSerializer());


    PropertyEventBus<ClusterProperties> clusterBus = new PropertyEventBusImpl<ClusterProperties>(executorService);
    PropertyEventBus<ServiceProperties> serviceBus = new PropertyEventBusImpl<ServiceProperties>(executorService);

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