org.elasticsearch.transport.client.PreBuiltTransportClient Java Exaples

Source File: ElasticsearchGis.java From Elasticsearch-Tutorial-zh-CN with GNU General Public License v3.0

7 votes

@SuppressWarnings({"unchecked", "resource"})
public static void main(String[] args) throws Exception {
	// 先构建client，两个参数分别是：cluster.name 固定参数代表后面参数的含义，集群名称
	// client.transport.sniff 表示设置自动探查集群的集群节点
	Settings settings = Settings.builder()
			.put("cluster.name", "youmeek-cluster")
			.put("client.transport.sniff", true)
			.build();

	//单个节点的写法
	TransportClient transportClient = new PreBuiltTransportClient(settings).addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("192.168.1.127"), 9300));

	//batchCreate(transportClient);
	query(transportClient);

	transportClient.close();
}

Source File: ElasticSearchTransportClientProvider.java From conductor with Apache License 2.0

6 votes

@Override
public Client get() {

    Settings settings = Settings.builder()
            .put("client.transport.ignore_cluster_name", true)
            .put("client.transport.sniff", true)
            .build();

    TransportClient tc = new PreBuiltTransportClient(settings);

    List<URI> clusterAddresses = configuration.getURIs();

    if (clusterAddresses.isEmpty()) {
        logger.warn(ElasticSearchConfiguration.ELASTIC_SEARCH_URL_PROPERTY_NAME +
                " is not set.  Indexing will remain DISABLED.");
    }
    for (URI hostAddress : clusterAddresses) {
        int port = Optional.ofNullable(hostAddress.getPort()).orElse(9200);
        try {
            tc.addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(hostAddress.getHost()), port));
        } catch (UnknownHostException uhe){
            throw new ProvisionException("Invalid host" + hostAddress.getHost(), uhe);
        }
    }
    return tc;
}

Source File: ElasticsearchContainerTest.java From testcontainers-java with MIT License

6 votes

@Test
public void transportClientClusterHealth() {
    // transportClientContainer {
    // Create the elasticsearch container.
    try (ElasticsearchContainer container = new ElasticsearchContainer()) {
        // Start the container. This step might take some time...
        container.start();

        // Do whatever you want with the transport client
        TransportAddress transportAddress = new TransportAddress(container.getTcpHost());
        String expectedClusterName = "docker-cluster";
        Settings settings = Settings.builder().put("cluster.name", expectedClusterName).build();
        try (TransportClient transportClient = new PreBuiltTransportClient(settings)
            .addTransportAddress(transportAddress)) {
            ClusterHealthResponse healths = transportClient.admin().cluster().prepareHealth().get();
            String clusterName = healths.getClusterName();
            // }}}
            assertThat(clusterName, is(expectedClusterName));
            // transportClientContainer {{{
        }
    }
    // }
}

Source File: Elasticsearch5Module.java From presto-connectors with Apache License 2.0

6 votes

@Override
public Client get()
{
    try {
        Settings settings = Settings.builder().put("cluster.name", clusterName)
                .put("client.transport.sniff", true).build();

        TransportClient client = new PreBuiltTransportClient(settings);
        for (String ip : hosts.split(",")) {
            client.addTransportAddress(
                    new InetSocketTransportAddress(InetAddress.getByName(ip.split(":")[0]),
                            Integer.parseInt(ip.split(":")[1])));
        }
        return client;
    }
    catch (IOException e) {
        throw new PrestoException(UNEXPECTED_ES_ERROR, "Failed to get connection to Elasticsearch", e);
    }
}

Source File: CaseController.java From skywalking with Apache License 2.0

6 votes

private Client initTransportClient() throws UnknownHostException {
    TransportClient client = null;
    try {
        Settings settings = Settings.builder()
                                    .put("cluster.name", "docker-node")
                                    .put("client.transport.sniff", false)
                                    .build();

        client = new PreBuiltTransportClient(settings).addTransportAddress(new InetSocketTransportAddress(InetAddress
            .getByName(host), 9300));
    } catch (UnknownHostException e) {
        logger.error("create client error", e);
        throw e;
    }
    return client;
}

Source File: DefaultMahutaTest.java From Mahuta with Apache License 2.0

6 votes

@Test
public void connectViaTransportClient() throws Exception {

    String host = ContainerUtils.getHost("elasticsearch");
    Integer port = ContainerUtils.getPort("elasticsearch");
    String clusterName = ContainerUtils.getConfig("elasticsearch", "cluster-name");
            
    PreBuiltTransportClient pbtc = new PreBuiltTransportClient(
            Settings.builder().put("cluster.name", clusterName).build());
    TransportClient transportClient = pbtc
            .addTransportAddress(new TransportAddress(InetAddress.getByName(host), port));
    
    IndexingService esService = ElasticSearchService.connect(transportClient).withIndex("test");
    
    assertNotNull( esService.getIndexes());
}

Source File: ElasticSearchService.java From Mahuta with Apache License 2.0

6 votes

public static ElasticSearchService connect(String host, Integer port, String clusterName) {
    ElasticSearchSettings settings = ElasticSearchSettings.of(host, port, clusterName);

    try {
        // WARNING pbtc is never closed -> Close the transportClient as well...
        PreBuiltTransportClient pbtc = new PreBuiltTransportClient(
                Settings.builder().put("cluster.name", clusterName).build());
        TransportClient transportClient = pbtc
                .addTransportAddress(new TransportAddress(InetAddress.getByName(host), port));

        log.info("Connected to ElasticSearch [host: {}, port: {}, cluster: {}] : {}", host, port, clusterName,
                transportClient.listedNodes().toString());

        return new ElasticSearchService(settings, transportClient);

    } catch (UnknownHostException ex) {
        log.error("Error while connecting to ElasticSearch [host: {}, port: {}, cluster: {}]", host, port,
                clusterName, ex);
        throw new ConnectionException("Error whilst connecting to ElasticSearch", ex);
    }
}

Source File: ElasticSearchConfig.java From cloud-service with MIT License

6 votes

/**
    * 使用elasticsearch实现类时才触发
    *
    * @return
    */
@Bean
   @ConditionalOnBean(value = EsLogServiceImpl.class)
public TransportClient getESClient() {
	// 设置集群名字
	Settings settings = Settings.builder().put("cluster.name", this.clusterName).build();
	TransportClient client = new PreBuiltTransportClient(settings);
	try {
		// 读取的ip列表是以逗号分隔的
		for (String clusterNode : this.clusterNodes.split(",")) {
			String ip = clusterNode.split(":")[0];
			String port = clusterNode.split(":")[1];
			((TransportClient) client)
					.addTransportAddress(new TransportAddress(InetAddress.getByName(ip), Integer.parseInt(port)));
		}
	} catch (UnknownHostException e) {
		e.printStackTrace();
	}

	return client;
}

Source File: IndexderAppConfig.java From elasticactors with Apache License 2.0

6 votes

@Bean(name = "indexingElasticsearchClient")
public Client createElasticsearchClient() {
    String[] elasticsearchHosts = environment.getRequiredProperty("actor.indexing.elasticsearch.hosts", String[].class);
    Integer elasticsearchPort = environment.getProperty("actor.indexing.elasticsearch.port", Integer.class, 9300);
    String elasticsearchClusterName = environment.getProperty("actor.indexing.elasticsearch.cluster.name", String.class, "elasticsearch");

    logger.info("Creating elasticsearch client with hosts <{}>", Arrays.toString(elasticsearchHosts));

    Settings settings = Settings.builder()
            .put("cluster.name", elasticsearchClusterName).build();

    client = new PreBuiltTransportClient(settings);

    for (String elasticsearchHost : elasticsearchHosts) {
        try {
            client.addTransportAddress(new TransportAddress(InetAddress.getByName(elasticsearchHost), elasticsearchPort));
        } catch (UnknownHostException e) {
            throw new BeanCreationException("Could not add elasticsearch host <" + elasticsearchHost + "> to client configuration. Aborting", e);
        }
    }

    return client;
}

Source File: ElasticSearchBulk.java From pentaho-kettle with Apache License 2.0

6 votes

private void initClient() throws UnknownHostException {


    Settings.Builder settingsBuilder = Settings.builder();
    settingsBuilder.put( Settings.Builder.EMPTY_SETTINGS );
    meta.getSettingsMap().entrySet().stream().forEach( ( s ) -> settingsBuilder.put( s.getKey(),
            environmentSubstitute( s.getValue() ) ) );

    PreBuiltTransportClient tClient = new PreBuiltTransportClient( settingsBuilder.build() );

    for ( Server server : meta.getServers() ) {
      tClient.addTransportAddress( new TransportAddress(
              InetAddress.getByName( environmentSubstitute( server.getAddress() ) ),
              server.getPort() ) );
    }

    client = tClient;

    /** With the upgrade to elasticsearch 6.3.0, removed the NodeBuilder,
     *  which was removed from the elasticsearch 5.0 API, see:
     *  https://www.elastic.co/guide/en/elasticsearch/reference/5.0/breaking_50_java_api_changes
     *  .html#_nodebuilder_removed
     */

  }

Source File: Elasticsearch6Module.java From presto-connectors with Apache License 2.0

6 votes

@Override
public Client get()
{
    try {
        Settings settings = Settings.builder().put("cluster.name", clusterName)
                .put("client.transport.sniff", true).build();

        TransportClient client = new PreBuiltTransportClient(settings);
        for (String ip : hosts.split(",")) {
            client.addTransportAddress(
                    new TransportAddress(InetAddress.getByName(ip.split(":")[0]),
                            Integer.parseInt(ip.split(":")[1])));
        }
        return client;
    }
    catch (IOException e) {
        throw new PrestoException(UNEXPECTED_ES_ERROR, "Failed to get connection to Elasticsearch", e);
    }
}

Source File: SharedElasticsearchResource.java From baleen with Apache License 2.0

6 votes

@Override
protected boolean doInitialize(ResourceSpecifier specifier, Map<String, Object> additionalParams)
    throws ResourceInitializationException {

  int esPort = ConfigUtils.stringToInteger(esPortString, 9300);

  // Use the transport client
  Settings.Builder settings = Settings.builder();
  settings.put("cluster.name", esCluster);

  client = new PreBuiltTransportClient(settings.build());
  client.addTransportAddress(
      new InetSocketTransportAddress(new InetSocketAddress(esHost, esPort)));

  return client != null;
}

Source File: ElasticsearchServiceImpl.java From canal-elasticsearch with Apache License 2.0

6 votes

public ElasticsearchServiceImpl(EsConf esConf) throws UnknownHostException {

        String clusterName = esConf.getClusterName();
        String address = esConf.getAddress();
        String[] hostPort = address.split(":");

        logger.info("Connect to elasticsearch  {}:{}", clusterName, address);

        Settings settings = Settings.builder().put("cluster.name", clusterName)
                .put("client.transport.sniff", true)
                .build();
        transportClient = new PreBuiltTransportClient(settings)
                .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(hostPort[0]), Integer.valueOf(hostPort[1])));


        logger.info("Complete the connection to elasticsearch");
    }

Source File: ElasticsearchResource.java From vertexium with Apache License 2.0

6 votes

private Client getRemoteClient() {
    if (remoteClient == null) {
        Settings settings = Settings.builder()
            .put("cluster.name", System.getProperty("REMOTE_ES_CLUSTER_NAME", "elasticsearch"))
            .build();
        TransportAddress[] transportAddresses = Arrays.stream(getRemoteEsAddresses().split(","))
            .map(address -> {
                String[] parts = address.split(":");
                try {
                    InetAddress inetAddress = InetAddress.getByName(parts[0]);
                    int port = parts.length > 1 ? Integer.parseInt(parts[1]) : 9300;
                    return new InetSocketTransportAddress(inetAddress, port);
                } catch (Exception ex) {
                    throw new VertexiumException("cannot find host: " + address, ex);
                }
            })
            .toArray(TransportAddress[]::new);
        remoteClient = new PreBuiltTransportClient(settings)
            .addTransportAddresses(transportAddresses);
    }
    return remoteClient;
}

Source File: ElasticClient.java From Stargraph with MIT License

6 votes

private TransportClient createClient() {
    Config cfg = getModelCfg();
    Settings settings = Settings.builder().put("cluster.name", cfg.getString("elastic.cluster-name")).build();
    TransportClient client = new PreBuiltTransportClient(settings);

    List<String> servers = cfg.getStringList("elastic.servers");
    logger.debug(marker, "Elastic Servers: {}", servers);
    for (String addr : servers) {
        try {
            String[] a = addr.split(":");
            String host = a[0];
            int port = Integer.parseInt(a[1]);
            client.addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(host), port));
        } catch (Exception e) {
            logger.error(marker, "Transport client creation failed for '{}'", addr, e);
        }
    }

    return client;
}

Source File: ElasticSearchTransportClientProvider.java From conductor with Apache License 2.0

6 votes

@Override
public Client get() {

    Settings settings = Settings.builder()
            .put("client.transport.ignore_cluster_name", true)
            .put("client.transport.sniff", true)
            .build();

    TransportClient tc = new PreBuiltTransportClient(settings);

    List<URI> clusterAddresses = configuration.getURIs();

    if (clusterAddresses.isEmpty()) {
        logger.warn(ElasticSearchConfiguration.ELASTIC_SEARCH_URL_PROPERTY_NAME +
                " is not set.  Indexing will remain DISABLED.");
    }
    for (URI hostAddress : clusterAddresses) {
        int port = Optional.ofNullable(hostAddress.getPort()).orElse(9200);
        try {
            tc.addTransportAddress(new TransportAddress(InetAddress.getByName(hostAddress.getHost()), port));
        } catch (Exception e) {
            throw new ProvisionException("Invalid host" + hostAddress.getHost(), e);
        }
    }
    return tc;
}

Source File: InferenceTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License

6 votes

private String[] getIndexes() {

		Settings settings = Settings.builder().put("cluster.name", "cluster1").build();
		try (TransportClient client = new PreBuiltTransportClient(settings)) {
			client.addTransportAddress(
					new TransportAddress(InetAddress.getByName("localhost"), embeddedElastic.getTransportTcpPort()));

			return client.admin()
					.indices()
					.getIndex(new GetIndexRequest())
					.actionGet()
					.getIndices();
		} catch (UnknownHostException e) {
			throw new IllegalStateException(e);
		}

	}

Source File: ElasticsearchStoreTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License

6 votes

private String[] getIndexes() {

		Settings settings = Settings.builder().put("cluster.name", "cluster1").build();
		try (TransportClient client = new PreBuiltTransportClient(settings)) {
			client.addTransportAddress(
					new TransportAddress(InetAddress.getByName("localhost"), embeddedElastic.getTransportTcpPort()));

			return client.admin()
					.indices()
					.getIndex(new GetIndexRequest())
					.actionGet()
					.getIndices();
		} catch (UnknownHostException e) {
			throw new IllegalStateException(e);
		}

	}

Source File: ElasticsearchStoreTransactionsTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License

6 votes

private String[] getIndexes() {

		Settings settings = Settings.builder().put("cluster.name", "cluster1").build();
		try (TransportClient client = new PreBuiltTransportClient(settings)) {
			client.addTransportAddress(
					new TransportAddress(InetAddress.getByName("localhost"), embeddedElastic.getTransportTcpPort()));

			return client.admin()
					.indices()
					.getIndex(new GetIndexRequest())
					.actionGet()
					.getIndices();
		} catch (UnknownHostException e) {
			throw new IllegalStateException(e);
		}

	}

Source File: ElasticsearchStoreWALTest.java From rdf4j with BSD 3-Clause "New" or "Revised" License

6 votes

private String[] getIndexes() {

		Settings settings = Settings.builder().put("cluster.name", "cluster1").build();
		try (TransportClient client = new PreBuiltTransportClient(settings)) {
			client.addTransportAddress(
					new TransportAddress(InetAddress.getByName("localhost"), embeddedElastic.getTransportTcpPort()));

			return client.admin()
					.indices()
					.getIndex(new GetIndexRequest())
					.actionGet()
					.getIndices();
		} catch (UnknownHostException e) {
			throw new IllegalStateException(e);
		}

	}

Source File: ESClient.java From spider with GNU General Public License v3.0

6 votes

public Client getClient() {
    if (!staticValue.isNeedEs()) {
        LOG.info("已在配置文件中声明不需要ES,如需要ES,请在配置文件中进行配置");
        return null;
    }
    if (client != null) return client;
    LOG.info("正在初始化ElasticSearch客户端," + staticValue.getEsHost());
    
    Settings settings = Settings.builder()
    		.put("cluster.name", staticValue.getEsClusterName()).build();
    try {
    	client = new PreBuiltTransportClient(settings)
    			.addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(staticValue.getEsHost()), staticValue.getEsPort()));
        final ClusterHealthResponse healthResponse = client.admin().cluster().prepareHealth()
                .setTimeout(TimeValue.timeValueMinutes(1)).execute().actionGet();
        if (healthResponse.isTimedOut()) {
            LOG.error("ES客户端初始化失败");
        } else {
            LOG.info("ES客户端初始化成功");
        }
    } catch (IOException e) {
        LOG.fatal("构建ElasticSearch客户端失败!");
    }
    return client;
}

Source File: ElasticsearchClientTransport.java From c2mon with GNU Lesser General Public License v3.0

6 votes

@Override
@SuppressWarnings("squid:S2095")
public void setup() {
  final Settings.Builder settingsBuilder = Settings.builder();

  settingsBuilder.put("node.name", properties.getNodeName())
      .put("cluster.name", properties.getClusterName())
      .put("http.enabled", properties.isHttpEnabled());

  client = new PreBuiltTransportClient(settingsBuilder.build());
  try {
    client.addTransportAddress(new TransportAddress(InetAddress.getByName(properties.getHost()), properties.getPort()));
  } catch (UnknownHostException e) {
    log.error("Error connecting to the Elasticsearch cluster at {}:{}", properties.getHost(), properties.getPort(), e);
  }
}

Source File: EsDataQuerierOld.java From moql with Apache License 2.0

6 votes

@Override
public synchronized void connect(String[] serverIps, Properties properties)
    throws IOException {
  Validate.notEmpty(serverIps, "serverIps is empty!");
  Validate.notEmpty(properties, "properties is empty!");

  Settings.Builder builder = Settings.builder();
  for (Map.Entry<Object, Object> entry : properties.entrySet()) {
    String key = (String) entry.getKey();
    if (key.equals(CLIENT_TRANSPORT_SNIFF)) {
      builder.put(key, (Boolean)entry.getValue());
    } else {
      builder.put(key, (String) entry.getValue());
    }
  }
  Settings settings = builder.build();
  client = new PreBuiltTransportClient(settings);
  for (int i = 0; i < serverIps.length; i++) {
    try {
      client.addTransportAddresses(
          new TransportAddress(InetAddress.getByName(serverIps[i]), 9300));
    } catch (UnknownHostException e) {
      throw new IOException(e);
    }
  }
}

Source File: ESClient.java From uavstack with Apache License 2.0

6 votes

/**
 * init
 * 
 * @param esAddrs
 * @param clusterName
 */
private void init(String[] esAddrs, String clusterName) {

    Settings settings = Settings.EMPTY;

    if (!StringHelper.isEmpty(clusterName)) {
        settings = Settings.builder().put("cluster.name", clusterName).build();
    }

    client = new PreBuiltTransportClient(settings);

    for (String esAddr : esAddrs) {
        String[] ipport = esAddr.split(":");
        client.addTransportAddress(new InetSocketTransportAddress(
                new InetSocketAddress(ipport[0], DataConvertHelper.toInt(ipport[1], 9300))));
    }
}

Source File: ESClient.java From Gather-Platform with GNU General Public License v3.0

6 votes

public Client getClient() {
    if (!staticValue.isNeedEs()) {
        LOG.info("已在配置文件中声明不需要ES,如需要ES,请在配置文件中进行配置");
        return null;
    }
    if (client != null) return client;
    try {
        LOG.info("正在初始化ElasticSearch客户端," + staticValue.getEsHost());
        Settings settings = Settings.builder()
                .put("cluster.name", staticValue.getEsClusterName()).build();
        client = new PreBuiltTransportClient(settings)
                .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(staticValue.getEsHost()), 9300));
        final ClusterHealthResponse healthResponse = client.admin().cluster().prepareHealth()
                .setTimeout(TimeValue.timeValueMinutes(1)).execute().actionGet();
        if (healthResponse.isTimedOut()) {
            LOG.error("ES客户端初始化失败");
        } else {
            LOG.info("ES客户端初始化成功");
        }
    } catch (IOException e) {
        LOG.fatal("构建ElasticSearch客户端失败!");
    }
    return client;
}

Source File: ClientProviderWithDebugStats.java From rdf4j with BSD 3-Clause "New" or "Revised" License

5 votes

public ClientProviderWithDebugStats(String hostname, int port, String clusterName) {
	try {
		Settings settings = Settings.builder().put("cluster.name", clusterName).build();
		TransportClient client = new PreBuiltTransportClient(settings);
		client.addTransportAddress(new TransportAddress(InetAddress.getByName(hostname), port));
		this.client = new ClientWithStats(client);
	} catch (UnknownHostException e) {
		throw new SailException(e);
	}
}

Source File: ESTest.java From canal with Apache License 2.0

5 votes

@Before
public void init() throws UnknownHostException {
    Settings.Builder settingBuilder = Settings.builder();
    settingBuilder.put("cluster.name", TestConstant.clusterName);
    Settings settings = settingBuilder.build();
    transportClient = new PreBuiltTransportClient(settings);
    String[] hostArray = TestConstant.esHosts.split(",");
    for (String host : hostArray) {
        int i = host.indexOf(":");
        transportClient.addTransportAddress(new TransportAddress(InetAddress.getByName(host.substring(0, i)),
            Integer.parseInt(host.substring(i + 1))));
    }
}

Source File: BulkProcessorObjectFactoryTest.java From log4j2-elasticsearch with Apache License 2.0

5 votes

@Test
public void failoverIsExecutedAfterNonSuccessfulRequest() {

    // given
    Builder builder = createTestObjectFactoryBuilder();
    ClientObjectFactory<TransportClient, BulkRequest> config = spy(builder.build());

    FailoverPolicy failoverPolicy = spy(new NoopFailoverPolicy());
    Function handler = spy(config.createFailureHandler(failoverPolicy));
    when(config.createFailureHandler(any())).thenReturn(handler);

    Settings settings = Settings.builder().build();
    TransportClient client = spy(new PreBuiltTransportClient(settings));
    client.addTransportAddress(new TransportAddress(new InetSocketAddress(9999)));
    when(config.createClient()).thenReturn(client);

    BulkProcessorFactory bulkProcessorFactory = new BulkProcessorFactory();
    BatchEmitter batchEmitter = bulkProcessorFactory.createInstance(
            1,
            100,
            config,
            failoverPolicy);

    String payload1 = "test1";
    ActionRequest testRequest = createTestRequest(payload1);

    // when
    batchEmitter.add(testRequest);

    // then
    ArgumentCaptor<BulkRequest> captor = ArgumentCaptor.forClass(BulkRequest.class);
    verify(handler, times(1)).apply(captor.capture());

    assertEquals(payload1, new BulkRequestIntrospector().items(captor.getValue()).iterator().next());
}

Source File: Client.java From elasticsearch-mysql with MIT License

5 votes

private Client(String clusterName, Set<Node> nodes) {
    Settings settings = Settings.builder().put("client.transport.sniff", true)
            .put("cluster.name", clusterName).build();
    client = new PreBuiltTransportClient(settings);
    nodes.stream().forEach(node -> {
        try {
            client.addTransportAddress(new InetSocketTransportAddress(
                    InetAddress.getByName(node.getIp()), node.getPort()));
        } catch (UnknownHostException e) {
            e.printStackTrace();
        }
    });
}

Source File: ElasticSearchConfig.java From metacat with Apache License 2.0

5 votes

/**
 * The ElasticSearch client.
 *
 * @param config System config
 * @return Configured client or error
 */
@Bean
@ConditionalOnMissingBean(Client.class)
public Client elasticSearchClient(final Config config) {
    final String clusterName = config.getElasticSearchClusterName();
    if (StringUtils.isBlank(clusterName)) {
        throw new IllegalStateException("No cluster name set. Unable to continue");
    }
    final Settings settings = Settings.builder()
        .put("cluster.name", clusterName)
        .put("client.transport.sniff", true) //to dynamically add new hosts and remove old ones
        .put("transport.tcp.connect_timeout", "60s")
        .build();
    final TransportClient client = new PreBuiltTransportClient(settings);
    // Add the transport address if exists
    final String clusterNodesStr = config.getElasticSearchClusterNodes();
    if (StringUtils.isNotBlank(clusterNodesStr)) {
        final int port = config.getElasticSearchClusterPort();
        final Iterable<String> clusterNodes = Splitter.on(',').split(clusterNodesStr);
        clusterNodes.
            forEach(
                clusterNode -> {
                    try {
                        client.addTransportAddress(
                            new InetSocketTransportAddress(InetAddress.getByName(clusterNode), port)
                        );
                    } catch (UnknownHostException exception) {
                        log.error("Skipping unknown host {}", clusterNode);
                    }
                }
            );
    }

    if (client.transportAddresses().isEmpty()) {
        throw new IllegalStateException("No Elasticsearch cluster nodes added. Unable to create client.");
    }
    return client;
}

org.elasticsearch.transport.client.PreBuiltTransportClient Java Examples