org.elasticsearch.action.admin.cluster.node.info.NodesInfoResponse Java Examples

public void testTransportClient() throws Exception {
    NodesInfoResponse nodeInfos = client().admin().cluster().prepareNodesInfo().get();
    List<NodeInfo>  nodes = nodeInfos.getNodes();
    assertTrue(nodes.size() > 0);
    TransportAddress publishAddress = randomFrom(nodes).getTransport().address().publishAddress();
    String clusterName = nodeInfos.getClusterName().value();

    Settings settings = Settings.builder()
            .put("cluster.name", clusterName)
            .put(ThreadContext.PREFIX + "." + CustomRealm.USER_HEADER, randomFrom(KNOWN_USERS))
            .put(ThreadContext.PREFIX + "." + CustomRealm.PW_HEADER, PASSWORD)
            .build();
    try (TransportClient client = new PreBuiltXPackTransportClient(settings)) {
        client.addTransportAddress(publishAddress);
        ClusterHealthResponse response = client.admin().cluster().prepareHealth().execute().actionGet();
        assertThat(response.isTimedOut(), is(false));
    }
}
 

@Test
public void testPluginLoaded() {
  NodesInfoResponse nodesInfoResponse = client().admin().cluster().prepareNodesInfo().clear().setPlugins(true).get();
  assertTrue(nodesInfoResponse.getNodes().length != 0);
  assertThat(nodesInfoResponse.getNodes()[0].getPlugins().getPluginInfos(), notNullValue());
  assertThat(nodesInfoResponse.getNodes()[0].getPlugins().getPluginInfos().size(), not(0));

  boolean pluginFound = false;

  for (PluginInfo pluginInfo : nodesInfoResponse.getNodes()[0].getPlugins().getPluginInfos()) {
    if (pluginInfo.getName().equals("SirenJoinPlugin")) {
      pluginFound = true;
      break;
    }
  }

  assertThat(pluginFound, is(true));
}
 

private boolean checkPluginInstalled(Client client) {
    if (config.isForceDisableVertexiumPlugin()) {
        LOGGER.info("Forcing the vertexium plugin off. Running without the server side Vertexium plugin will disable some features.");
        return false;
    }

    NodesInfoResponse nodesInfoResponse = client.admin().cluster().prepareNodesInfo().setPlugins(true).get();
    for (NodeInfo nodeInfo : nodesInfoResponse.getNodes()) {
        for (PluginInfo pluginInfo : nodeInfo.getPlugins().getPluginInfos()) {
            if ("vertexium".equals(pluginInfo.getName())) {
                return true;
            }
        }
    }
    if (config.isErrorOnMissingVertexiumPlugin()) {
        throw new VertexiumException("Vertexium plugin cannot be found");
    }
    LOGGER.warn("Running without the server side Vertexium plugin will disable some features.");
    return false;
}
 

@Override
public void doRequest(final RestRequest request, final RestChannel channel, final Client client) {
    final ClusterStateRequest clusterStateRequest = new ClusterStateRequest();
    clusterStateRequest.clear().nodes(true);
    clusterStateRequest.local(request.paramAsBoolean("local", clusterStateRequest.local()));
    clusterStateRequest.masterNodeTimeout(request.paramAsTime("master_timeout", clusterStateRequest.masterNodeTimeout()));

    client.admin().cluster().state(clusterStateRequest, new RestActionListener<ClusterStateResponse>(channel) {
        @Override
        public void processResponse(final ClusterStateResponse clusterStateResponse) throws Exception {
            NodesInfoRequest nodesInfoRequest = new NodesInfoRequest();
            nodesInfoRequest.clear().plugins(true);
            client.admin().cluster().nodesInfo(nodesInfoRequest, new RestResponseListener<NodesInfoResponse>(channel) {
                @Override
                public RestResponse buildResponse(final NodesInfoResponse nodesInfoResponse) throws Exception {
                    return RestTable.buildResponse(buildTable(request, clusterStateResponse, nodesInfoResponse), channel);
                }
            });
        }
    });
}
 

protected void findNodeAddress() {
    NodesInfoRequest nodesInfoRequest = new NodesInfoRequest().transport(true);
    NodesInfoResponse response = client("1").admin().cluster().nodesInfo(nodesInfoRequest).actionGet();
    Object obj = response.iterator().next().getTransport().getAddress()
            .publishAddress();
    if (obj instanceof InetSocketTransportAddress) {
        InetSocketTransportAddress address = (InetSocketTransportAddress) obj;
        host = address.address().getHostName();
        port = address.address().getPort();
    }
}
 

public final void startES(final Settings settings) throws Exception {
    FileUtils.copyFileToDirectory(getAbsoluteFilePathFromClassPath("roles.yml").toFile(), new File("testtmp/config/shield"));

    final Set<Integer> ports = new HashSet<>();
    do {
        ports.add(NetworkUtil.getServerPort());
    } while (ports.size() < 7);

    final Iterator<Integer> portIt = ports.iterator();

    elasticsearchHttpPort1 = portIt.next();
    elasticsearchHttpPort2 = portIt.next();
    elasticsearchHttpPort3 = portIt.next();

    //elasticsearchNodePort1 = portIt.next();
    //elasticsearchNodePort2 = portIt.next();
    //elasticsearchNodePort3 = portIt.next();

    esNode1 = new PluginEnabledNode(getDefaultSettingsBuilder(1, 0, elasticsearchHttpPort1, false, true).put(
            settings == null ? Settings.Builder.EMPTY_SETTINGS : settings).build(), Lists.newArrayList(ShieldPlugin.class, LicensePlugin.class, KerberosRealmPlugin.class)).start();
    client = esNode1.client();
    
    esNode2 = new PluginEnabledNode(getDefaultSettingsBuilder(2, 0, elasticsearchHttpPort2, true, true).put(
            settings == null ? Settings.Builder.EMPTY_SETTINGS : settings).build(), Lists.newArrayList(ShieldPlugin.class, LicensePlugin.class, KerberosRealmPlugin.class)).start();
    
    esNode3 = new PluginEnabledNode(getDefaultSettingsBuilder(3, 0, elasticsearchHttpPort3, true, false).put(
            settings == null ? Settings.Builder.EMPTY_SETTINGS : settings).build(), Lists.newArrayList(ShieldPlugin.class, LicensePlugin.class, KerberosRealmPlugin.class)).start();
    
    waitForGreenClusterState();
    final NodesInfoResponse nodeInfos = client().admin().cluster().prepareNodesInfo().get();
    final NodeInfo[] nodes = nodeInfos.getNodes();
    Assert.assertEquals(nodes + "", 3, nodes.length);
}
 

protected NodesStatsResponse getNodesStats() {
    final NodesInfoResponse nodesInfoResponse = client.admin().cluster().nodesInfo(new NodesInfoRequest()).actionGet();
    final String[] nodes = new String[nodesInfoResponse.getNodes().length];

    int i = 0;

    for (NodeInfo nodeInfo : nodesInfoResponse.getNodes()) {
        nodes[i++] = nodeInfo.getNode().getName();
    }

    return client.admin().cluster().nodesStats(new NodesStatsRequest(nodes)).actionGet();
}
 

public static InetSocketTransportAddress findHttpAddress(Client client) {
    NodesInfoRequestBuilder nodesInfoRequestBuilder = new NodesInfoRequestBuilder(client, NodesInfoAction.INSTANCE);
    nodesInfoRequestBuilder.setHttp(true).setTransport(false);
    NodesInfoResponse response = nodesInfoRequestBuilder.execute().actionGet();
    Object obj = response.iterator().next().getHttp().getAddress().publishAddress();
    if (obj instanceof InetSocketTransportAddress) {
        return (InetSocketTransportAddress) obj;
    }
    return null;
}
 

protected void findNodeAddress() {
    NodesInfoRequest nodesInfoRequest = new NodesInfoRequest().transport(true);
    NodesInfoResponse response = client("1").admin().cluster().nodesInfo(nodesInfoRequest).actionGet();
    Object obj = response.iterator().next().getTransport().getAddress()
            .publishAddress();
    if (obj instanceof InetSocketTransportAddress) {
        InetSocketTransportAddress address = (InetSocketTransportAddress) obj;
        host = address.address().getHostName();
        port = address.address().getPort();
    }
}
 

public void testPluginIsLoaded() throws Exception {
    NodesInfoResponse response = client().admin().cluster().prepareNodesInfo().setPlugins(true).get();
    for (NodeInfo nodeInfo : response.getNodes()) {
        boolean pluginFound = false;
        for (PluginInfo pluginInfo : nodeInfo.getPlugins().getPluginInfos()) {
            if (pluginInfo.getName().equals(AnalysisVietnamesePlugin.class.getName())) {
                pluginFound = true;
                break;
            }
        }
        assertThat(pluginFound, is(true));
    }
}
 

@Test
public void assertPluginLoaded() {
    NodesInfoResponse nodesInfoResponse = client.admin().cluster().prepareNodesInfo().clear().setPlugins(true).get();
    logger.info("{}", nodesInfoResponse);
    assertEquals(nodesInfoResponse.getNodes().length, 2);
    assertNotNull(nodesInfoResponse.getNodes()[0].getPlugins().getInfos());
    assertEquals(nodesInfoResponse.getNodes()[0].getPlugins().getInfos().size(), 1);
    assertEquals(nodesInfoResponse.getNodes()[0].getPlugins().getInfos().get(0).getName(), "topk-aggregation");
    assertEquals(nodesInfoResponse.getNodes()[0].getPlugins().getInfos().get(0).isSite(), false);
}
 

@Test
public void testTransportClientMultiRound() throws Exception {

    //Mock mode, no kerberos involved

    embeddedKrbServer.getSimpleKdcServer().stop();

    final Settings esServerSettings = Settings.builder().put(PREFIX + SettingConstants.ACCEPTOR_KEYTAB_PATH, "mock")
            .put(PREFIX + SettingConstants.ACCEPTOR_PRINCIPAL, "mock").put(PREFIX + "mock_mode", true)
            .putArray(PREFIX + SettingConstants.ROLES+".cc_kerberos_realm_role", "spock/[email protected]","mock_principal")
            .build();

    this.startES(esServerSettings);

    final NodesInfoResponse nodeInfos = client().admin().cluster().prepareNodesInfo().get();
    final NodeInfo[] nodes = nodeInfos.getNodes();
    assertTrue(nodes.length > 2);

    final Settings settings = Settings.builder().put("cluster.name", clustername)
            .putArray("plugin.types", ShieldPlugin.class.getName()).build();

    try (TransportClient client = TransportClient.builder().settings(settings).build()) {
        client.addTransportAddress(nodes[0].getTransport().address().publishAddress());
        try (KerberizedClient kc = new MockingKerberizedClient(client)) {

            ClusterHealthResponse response = kc.admin().cluster().prepareHealth().execute().actionGet();
            assertThat(response.isTimedOut(), is(false));

            response = kc.admin().cluster().prepareHealth().execute().actionGet();
            assertThat(response.isTimedOut(), is(false));

            response = kc.admin().cluster().prepareHealth().execute().actionGet();
            assertThat(response.isTimedOut(), is(false));
            assertThat(response.status(), is(RestStatus.OK));
            assertThat(response.getStatus(), is(ClusterHealthStatus.GREEN));
        }
    }
}
 

/**
 * Returns current address to connect to with HTTP client.
 * @return hostname/port for HTTP connection
 */
public TransportAddress httpAddress() {
  Preconditions.checkState(isStarted, "node is not started");

  NodesInfoResponse response =  client().admin().cluster().prepareNodesInfo()
      .execute().actionGet();
  if (response.getNodes().size() != 1) {
    throw new IllegalStateException("Expected single node but got "
        + response.getNodes().size());
  }
  NodeInfo node = response.getNodes().get(0);
  return node.getHttp().address().boundAddresses()[0];
}
 

private void createNodeNameVsNodeIdMap(
        BiMap<String, String> nodeNameVsNodeId) {
    nodeNameVsNodeId.clear();
    NodesInfoRequest nodesInfoRequest = new NodesInfoRequest();
    nodesInfoRequest.all();
    NodesInfoResponse nodesInfoResponse = connection.getClient()
            .admin()
            .cluster()
            .nodesInfo(nodesInfoRequest)
            .actionGet();
    nodesInfoResponse.getNodes()
            .forEach(nodeInfo -> nodeNameVsNodeId.put(nodeInfo.getNode()
                                                              .getName(), nodeInfo.getNode()
                                                              .getId()));
}
 

protected NodesStatsResponse getNodesStats() {
    final NodesInfoResponse nodesInfoResponse = client.admin().cluster().nodesInfo(new NodesInfoRequest()).actionGet();
    final String[] nodes = new String[nodesInfoResponse.getNodes().length];

    int i = 0;

    for (NodeInfo nodeInfo : nodesInfoResponse.getNodes()) {
        nodes[i++] = nodeInfo.getNode().getName();
    }

    return client.admin().cluster().nodesStats(new NodesStatsRequest(nodes)).actionGet();
}
 

@BeforeMethod
public void createIndex() throws Exception {
    startNode("1");
    // find node address
    NodesInfoRequest nodesInfoRequest = new NodesInfoRequest().transport(true);
    NodesInfoResponse response = client("1").admin().cluster().nodesInfo(nodesInfoRequest).actionGet();
    InetSocketTransportAddress address = (InetSocketTransportAddress)response.iterator().next()
                    .getTransport().getAddress().publishAddress();
    PORT = address.address().getPort();
    addresses.put("1", address);
    logger.info("creating index {}", INDEX);
    client("1").admin().indices().create(new CreateIndexRequest(INDEX)).actionGet();
    logger.info("index {} created", INDEX);
}
 

public void testPluginIsLoaded() {
    NodesInfoResponse response = client().admin().cluster().prepareNodesInfo().setPlugins(true).get();
    for (NodeInfo nodeInfo : response.getNodes()) {
        boolean pluginFound = false;
        for (PluginInfo pluginInfo : nodeInfo.getPlugins().getPluginInfos()) {
            if (pluginInfo.getName().equals(BundlePlugin.class.getName())) {
                pluginFound = true;
                break;
            }
        }
        assertThat(pluginFound, is(true));
    }
}
 

@Test
public void testAutodiscover() throws IOException {
    startNode("2");
    Settings.Builder settingsBuilder = Settings.builder()
            .put("cluster.name", getClusterName())
            .put("path.home", System.getProperty("path.home"))
            .put("autodiscover", true);
    int i = 0;
    NodesInfoRequest nodesInfoRequest = new NodesInfoRequest().transport(true);
    NodesInfoResponse response = client("1").admin().cluster().nodesInfo(nodesInfoRequest).actionGet();
    for (NodeInfo nodeInfo : response) {
        TransportAddress ta = nodeInfo.getTransport().getAddress().publishAddress();
        if (ta instanceof InetSocketTransportAddress) {
            InetSocketTransportAddress address = (InetSocketTransportAddress) ta;
            settingsBuilder.put("host." + i++, address.address().getHostName() + ":" + address.address().getPort());
        }
    }
    final IngestTransportClient ingest = ClientBuilder.builder()
            .put(settingsBuilder.build())
            .setMetric(new LongAdderIngestMetric())
            .toIngestTransportClient();
    try {
        ingest.newIndex("test");
    } finally {
        ingest.shutdown();
    }
    if (ingest.hasThrowable()) {
        logger.error("error", ingest.getThrowable());
    }
    assertFalse(ingest.hasThrowable());
}
 

protected void findNodeAddress() {
    NodesInfoRequest nodesInfoRequest = new NodesInfoRequest().transport(true);
    NodesInfoResponse response = client("1").admin().cluster().nodesInfo(nodesInfoRequest).actionGet();
    Object obj = response.iterator().next().getTransport().getAddress()
            .publishAddress();
    if (obj instanceof InetSocketTransportAddress) {
        InetSocketTransportAddress address = (InetSocketTransportAddress) obj;
        host = address.address().getHostName();
        port = address.address().getPort();
    }
}
 

protected void findNodeAddress() {
    NodesInfoRequest nodesInfoRequest = new NodesInfoRequest().transport(true);
    NodesInfoResponse response = client("1").admin().cluster().nodesInfo(nodesInfoRequest).actionGet();
    Object obj = response.iterator().next().getTransport().getAddress()
            .publishAddress();
    if (obj instanceof InetSocketTransportAddress) {
        InetSocketTransportAddress address = (InetSocketTransportAddress) obj;
        host = address.address().getHostName();
        port = address.address().getPort();
    }
}
 

@Override
protected XContentBuilder toXContent(NodesInfoRequest request, NodesInfoResponse response, XContentBuilder builder) throws IOException {
    response.settingsFilter(new SettingsFilter(ImmutableSettings.settingsBuilder().build()));
    builder.startObject();
    builder.field(Fields.OK, true);
    response.toXContent(builder, ToXContent.EMPTY_PARAMS);
    builder.endObject();
    return builder;
}
 

private Table buildTable(RestRequest req, ClusterStateResponse state, NodesInfoResponse nodesInfo, NodesStatsResponse nodesStats) {
    boolean fullId = req.paramAsBoolean("full_id", false);

    DiscoveryNodes nodes = state.getState().nodes();
    Table table = getTableWithHeader(req);

    for (DiscoveryNode node : nodes) {
        NodeInfo info = nodesInfo.getNodesMap().get(node.id());
        ImmutableMap<String, String> attrs = node.getAttributes();
        for(String att : attrs.keySet()) {
            table.startRow();
            table.addCell(node.name());
            table.addCell(fullId ? node.id() : Strings.substring(node.getId(), 0, 4));
            table.addCell(info == null ? null : info.getProcess().getId());
            table.addCell(node.getHostName());
            table.addCell(node.getHostAddress());
            if (node.address() instanceof InetSocketTransportAddress) {
                table.addCell(((InetSocketTransportAddress) node.address()).address().getPort());
            } else {
                table.addCell("-");
            }
            table.addCell(att);
            table.addCell(attrs.containsKey(att) ? attrs.get(att) : null);
            table.endRow();
        }
    }

    return table;
}
 

/**
 * Returns current address to connect to with HTTP client.
 *
 * @return hostname/port for HTTP connection
 */
public TransportAddress httpAddress() {
    Preconditions.checkState(isStarted, "node is not started");

    NodesInfoResponse response = client().admin().cluster().prepareNodesInfo()
        .execute().actionGet();
    if (response.getNodes().size() != 1) {
        throw new IllegalStateException("Expected single node but got "
            + response.getNodes().size());
    }
    NodeInfo node = response.getNodes().get(0);
    return node.getHttp().address().boundAddresses()[0];
}
 

public void testPluginIsLoaded() {
    NodesInfoResponse response = client().admin().cluster().prepareNodesInfo().setPlugins(true).get();
    for (NodeInfo node : response.getNodes()) {
        boolean founded = false;
        for (PluginInfo pluginInfo : node.getPlugins().getPluginInfos()) {
            if (pluginInfo.getName().equals(AnalysisOpenKoreanTextPlugin.class.getName())) {
                founded = true;
            }
        }
        Assert.assertTrue(founded);
    }
}
 

@Override
public void doRequest(final RestRequest request, final RestChannel channel, final Client client) {
    final ClusterStateRequest clusterStateRequest = new ClusterStateRequest();
    clusterStateRequest.clear().nodes(true);
    clusterStateRequest.local(request.paramAsBoolean("local", clusterStateRequest.local()));
    clusterStateRequest.masterNodeTimeout(request.paramAsTime("master_timeout", clusterStateRequest.masterNodeTimeout()));

    client.admin().cluster().state(clusterStateRequest, new RestActionListener<ClusterStateResponse>(channel) {
        @Override
        public void processResponse(final ClusterStateResponse clusterStateResponse) {
            NodesInfoRequest nodesInfoRequest = new NodesInfoRequest();
            nodesInfoRequest.clear().jvm(false).os(false).process(true);
            client.admin().cluster().nodesInfo(nodesInfoRequest, new RestActionListener<NodesInfoResponse>(channel) {
                @Override
                public void processResponse(final NodesInfoResponse nodesInfoResponse) {
                    NodesStatsRequest nodesStatsRequest = new NodesStatsRequest();
                    nodesStatsRequest.clear().jvm(false).os(false).fs(false).indices(false).process(false);
                    client.admin().cluster().nodesStats(nodesStatsRequest, new RestResponseListener<NodesStatsResponse>(channel) {
                        @Override
                        public RestResponse buildResponse(NodesStatsResponse nodesStatsResponse) throws Exception {
                            return RestTable.buildResponse(buildTable(request, clusterStateResponse, nodesInfoResponse, nodesStatsResponse), channel);
                        }
                    });
                }
            });
        }
    });
}
 

@Override
public void doRequest(final RestRequest request, final RestChannel channel, final Client client) {
    final ClusterStateRequest clusterStateRequest = new ClusterStateRequest();
    clusterStateRequest.clear().nodes(true);
    clusterStateRequest.local(request.paramAsBoolean("local", clusterStateRequest.local()));
    clusterStateRequest.masterNodeTimeout(request.paramAsTime("master_timeout", clusterStateRequest.masterNodeTimeout()));

    client.admin().cluster().state(clusterStateRequest, new RestActionListener<ClusterStateResponse>(channel) {
        @Override
        public void processResponse(final ClusterStateResponse clusterStateResponse) {
            NodesInfoRequest nodesInfoRequest = new NodesInfoRequest();
            nodesInfoRequest.clear().jvm(true).os(true).process(true);
            client.admin().cluster().nodesInfo(nodesInfoRequest, new RestActionListener<NodesInfoResponse>(channel) {
                @Override
                public void processResponse(final NodesInfoResponse nodesInfoResponse) {
                    NodesStatsRequest nodesStatsRequest = new NodesStatsRequest();
                    nodesStatsRequest.clear().jvm(true).os(true).fs(true).indices(true).process(true).script(true);
                    client.admin().cluster().nodesStats(nodesStatsRequest, new RestResponseListener<NodesStatsResponse>(channel) {
                        @Override
                        public RestResponse buildResponse(NodesStatsResponse nodesStatsResponse) throws Exception {
                            return RestTable.buildResponse(buildTable(request, clusterStateResponse, nodesInfoResponse, nodesStatsResponse), channel);
                        }
                    });
                }
            });
        }
    });
}
 

private Table buildTable(RestRequest req, ClusterStateResponse state, NodesInfoResponse nodesInfo) {
    DiscoveryNodes nodes = state.getState().nodes();
    Table table = getTableWithHeader(req);

    for (DiscoveryNode node : nodes) {
        NodeInfo info = nodesInfo.getNodesMap().get(node.id());

        for (PluginInfo pluginInfo : info.getPlugins().getPluginInfos()) {
            table.startRow();
            table.addCell(node.id());
            table.addCell(node.name());
            table.addCell(pluginInfo.getName());
            table.addCell(pluginInfo.getVersion());
            String type;
            if (pluginInfo.isSite()) {
                if (pluginInfo.isJvm()) {
                    type = "j/s";
                } else {
                    type = "s";
                }
            } else {
                if (pluginInfo.isJvm()) {
                    type = "j";
                } else {
                    type = "";
                }
            }
            table.addCell(type);
            table.addCell(pluginInfo.getUrl());
            table.addCell(pluginInfo.getDescription());
            table.endRow();
        }
    }

    return table;
}
 

@Override
public void doRequest(final RestRequest request, final RestChannel channel, final Client client) {
    final ClusterStateRequest clusterStateRequest = new ClusterStateRequest();
    clusterStateRequest.clear().nodes(true);
    clusterStateRequest.local(request.paramAsBoolean("local", clusterStateRequest.local()));
    clusterStateRequest.masterNodeTimeout(request.paramAsTime("master_timeout", clusterStateRequest.masterNodeTimeout()));

    client.admin().cluster().state(clusterStateRequest, new RestActionListener<ClusterStateResponse>(channel) {
        @Override
        public void processResponse(final ClusterStateResponse clusterStateResponse) {
            NodesInfoRequest nodesInfoRequest = new NodesInfoRequest();
            nodesInfoRequest.clear().process(true).threadPool(true);
            client.admin().cluster().nodesInfo(nodesInfoRequest, new RestActionListener<NodesInfoResponse>(channel) {
                @Override
                public void processResponse(final NodesInfoResponse nodesInfoResponse) {
                    NodesStatsRequest nodesStatsRequest = new NodesStatsRequest();
                    nodesStatsRequest.clear().threadPool(true);
                    client.admin().cluster().nodesStats(nodesStatsRequest, new RestResponseListener<NodesStatsResponse>(channel) {
                        @Override
                        public RestResponse buildResponse(NodesStatsResponse nodesStatsResponse) throws Exception {
                            return RestTable.buildResponse(buildTable(request, clusterStateResponse, nodesInfoResponse, nodesStatsResponse), channel);
                        }
                    });
                }
            });
        }
    });
}
 

public void testTransportClientWrongAuthentication() throws Exception {
    NodesInfoResponse nodeInfos = client().admin().cluster().prepareNodesInfo().get();
    List<NodeInfo> nodes = nodeInfos.getNodes();
    assertTrue(nodes.size() > 0);
    TransportAddress publishAddress = randomFrom(nodes).getTransport().address().publishAddress();
    String clusterName = nodeInfos.getClusterName().value();

    Settings settings;
    if (randomBoolean()) {
        settings = Settings.builder()
                .put("cluster.name", clusterName)
                .put(ThreadContext.PREFIX + "." + CustomRealm.USER_HEADER, randomFrom(KNOWN_USERS) + randomAlphaOfLength(1))
                .put(ThreadContext.PREFIX + "." + CustomRealm.PW_HEADER, PASSWORD)
                .build();
    } else {
        settings = Settings.builder()
                .put("cluster.name", clusterName)
                .put(ThreadContext.PREFIX + "." + CustomRealm.USER_HEADER, randomFrom(KNOWN_USERS))
                .put(ThreadContext.PREFIX + "." + CustomRealm.PW_HEADER, randomAlphaOfLengthBetween(16, 32))
                .build();
    }

    try (TransportClient client = new PreBuiltXPackTransportClient(settings)) {
        client.addTransportAddress(publishAddress);
        client.admin().cluster().prepareHealth().execute().actionGet();
        fail("authentication failure should have resulted in a NoNodesAvailableException");
    } catch (NoNodeAvailableException e) {
        // expected
    }
}
 

/**
 * Returns current address to connect to with HTTP client.
 * @return hostname/port for HTTP connection
 */
public TransportAddress httpAddress() {
  Preconditions.checkState(isStarted, "node is not started");

  NodesInfoResponse response =  client().admin().cluster().prepareNodesInfo()
      .execute().actionGet();
  if (response.getNodes().size() != 1) {
    throw new IllegalStateException("Expected single node but got "
        + response.getNodes().size());
  }
  NodeInfo node = response.getNodes().get(0);
  return node.getHttp().address().boundAddresses()[0];
}