Java Client類代碼示例

import org.elasticsearch.client.Client; //導入依賴的package包/類
private BlobStoreRepository setupRepo() {
    final Client client = client();
    final Path location = ESIntegTestCase.randomRepoPath(node().settings());
    final String repositoryName = "test-repo";

    PutRepositoryResponse putRepositoryResponse =
        client.admin().cluster().preparePutRepository(repositoryName)
                                .setType("fs")
                                .setSettings(Settings.builder().put(node().settings()).put("location", location))
                                .get();
    assertThat(putRepositoryResponse.isAcknowledged(), equalTo(true));

    final RepositoriesService repositoriesService = getInstanceFromNode(RepositoriesService.class);
    @SuppressWarnings("unchecked") final BlobStoreRepository repository =
        (BlobStoreRepository) repositoriesService.repository(repositoryName);
    return repository;
}
 

import org.elasticsearch.client.Client; //導入依賴的package包/類
@Override
public void handleRequest(final RestRequest request, final RestChannel channel, final Client client) {
    FlushRequest flushRequest = new FlushRequest(Strings.splitStringByCommaToArray(request.param("index")));
    flushRequest.indicesOptions(IndicesOptions.fromRequest(request, flushRequest.indicesOptions()));
    flushRequest.force(request.paramAsBoolean("force", flushRequest.force()));
    flushRequest.waitIfOngoing(request.paramAsBoolean("wait_if_ongoing", flushRequest.waitIfOngoing()));
    client.admin().indices().flush(flushRequest, new RestBuilderListener<FlushResponse>(channel) {
        @Override
        public RestResponse buildResponse(FlushResponse response, XContentBuilder builder) throws Exception {
            builder.startObject();
            buildBroadcastShardsHeader(builder, request, response);
            builder.endObject();
            return new BytesRestResponse(OK, builder);
        }
    });
}
 

import org.elasticsearch.client.Client; //導入依賴的package包/類
private static void assertTribeNodeSuccessfullyCreated(Settings extraSettings) throws Exception {
    //The tribe clients do need it to make sure they can find their corresponding tribes using the proper transport
    Settings settings = Settings.builder().put(NetworkModule.HTTP_ENABLED.getKey(), false).put("node.name", "tribe_node")
            .put("transport.type", MockTcpTransportPlugin.MOCK_TCP_TRANSPORT_NAME).put("discovery.type", "local")
            .put("tribe.t1.transport.type", MockTcpTransportPlugin.MOCK_TCP_TRANSPORT_NAME)
            .put("tribe.t2.transport.type",MockTcpTransportPlugin.MOCK_TCP_TRANSPORT_NAME)
            .put(Environment.PATH_HOME_SETTING.getKey(), createTempDir())
            .put(extraSettings).build();

    try (Node node = new MockNode(settings, Arrays.asList(MockTcpTransportPlugin.class, TestZenDiscovery.TestPlugin.class)).start()) {
        try (Client client = node.client()) {
            assertBusy(() -> {
                ClusterState state = client.admin().cluster().prepareState().clear().setNodes(true).get().getState();
                assertThat(state.getClusterName().value(), equalTo("tribe_node_cluster"));
                assertThat(state.getNodes().getSize(), equalTo(5));
                for (DiscoveryNode discoveryNode : state.getNodes()) {
                    assertThat(discoveryNode.getName(), either(equalTo("tribe1_node")).or(equalTo("tribe2_node"))
                            .or(equalTo("tribe_node")).or(equalTo("tribe_node/t1")).or(equalTo("tribe_node/t2")));
                }
            });
        }
    }
}
 

import org.elasticsearch.client.Client; //導入依賴的package包/類
public void testRecoverAfterNodes() throws Exception {
    logger.info("--> start node (1)");
    Client clientNode1 = startNode(Settings.builder().put("gateway.recover_after_nodes", 3), 1);
    assertThat(clientNode1.admin().cluster().prepareState().setLocal(true).execute().actionGet()
            .getState().blocks().global(ClusterBlockLevel.METADATA_WRITE),
            hasItem(GatewayService.STATE_NOT_RECOVERED_BLOCK));

    logger.info("--> start node (2)");
    Client clientNode2 = startNode(Settings.builder().put("gateway.recover_after_nodes", 3), 1);
    Thread.sleep(BLOCK_WAIT_TIMEOUT.millis());
    assertThat(clientNode1.admin().cluster().prepareState().setLocal(true).execute().actionGet()
            .getState().blocks().global(ClusterBlockLevel.METADATA_WRITE),
            hasItem(GatewayService.STATE_NOT_RECOVERED_BLOCK));
    assertThat(clientNode2.admin().cluster().prepareState().setLocal(true).execute().actionGet()
            .getState().blocks().global(ClusterBlockLevel.METADATA_WRITE),
            hasItem(GatewayService.STATE_NOT_RECOVERED_BLOCK));

    logger.info("--> start node (3)");
    Client clientNode3 = startNode(Settings.builder().put("gateway.recover_after_nodes", 3), 1);

    assertThat(waitForNoBlocksOnNode(BLOCK_WAIT_TIMEOUT, clientNode1).isEmpty(), equalTo(true));
    assertThat(waitForNoBlocksOnNode(BLOCK_WAIT_TIMEOUT, clientNode2).isEmpty(), equalTo(true));
    assertThat(waitForNoBlocksOnNode(BLOCK_WAIT_TIMEOUT, clientNode3).isEmpty(), equalTo(true));
}
 

import org.elasticsearch.client.Client; //導入依賴的package包/類
@Override
public void handleRequest(final RestRequest request, final RestChannel channel, final Client client) {
    final String[] repositories = request.paramAsStringArray("repository", Strings.EMPTY_ARRAY);
    GetRepositoriesRequest getRepositoriesRequest = getRepositoryRequest(repositories);
    getRepositoriesRequest.masterNodeTimeout(request.paramAsTime("master_timeout", getRepositoriesRequest.masterNodeTimeout()));
    getRepositoriesRequest.local(request.paramAsBoolean("local", getRepositoriesRequest.local()));
    settingsFilter.addFilterSettingParams(request);
    client.admin().cluster().getRepositories(getRepositoriesRequest, new RestBuilderListener<GetRepositoriesResponse>(channel) {
        @Override
        public RestResponse buildResponse(GetRepositoriesResponse response, XContentBuilder builder) throws Exception {
            builder.startObject();
            for (RepositoryMetaData repositoryMetaData : response.repositories()) {
                RepositoriesMetaData.toXContent(repositoryMetaData, builder, request);
            }
            builder.endObject();

            return new BytesRestResponse(OK, builder);
        }
    });
}
 

import org.elasticsearch.client.Client; //導入依賴的package包/類
@Override
public void handleRequest(final RestRequest request, final RestChannel channel, final Client client) {
    IndicesExistsRequest indicesExistsRequest = new IndicesExistsRequest(Strings.splitStringByCommaToArray(request.param("index")));
    indicesExistsRequest.indicesOptions(IndicesOptions.fromRequest(request, indicesExistsRequest.indicesOptions()));
    indicesExistsRequest.local(request.paramAsBoolean("local", indicesExistsRequest.local()));
    client.admin().indices().exists(indicesExistsRequest, new RestResponseListener<IndicesExistsResponse>(channel) {
        @Override
        public RestResponse buildResponse(IndicesExistsResponse response) {
            if (response.isExists()) {
                return new BytesRestResponse(OK);
            } else {
                return new BytesRestResponse(NOT_FOUND);
            }
        }

    });
}
 

import org.elasticsearch.client.Client; //導入依賴的package包/類
@Override
public void handleRequest(final RestRequest request, final RestChannel channel, final Client client) {
    String[] nodesIds = Strings.splitStringByCommaToArray(request.param("nodeId"));
    NodesHotThreadsRequest nodesHotThreadsRequest = new NodesHotThreadsRequest(nodesIds);
    nodesHotThreadsRequest.threads(request.paramAsInt("threads", nodesHotThreadsRequest.threads()));
    nodesHotThreadsRequest.ignoreIdleThreads(request.paramAsBoolean("ignore_idle_threads", nodesHotThreadsRequest.ignoreIdleThreads()));
    nodesHotThreadsRequest.type(request.param("type", nodesHotThreadsRequest.type()));
    nodesHotThreadsRequest.interval(TimeValue.parseTimeValue(request.param("interval"), nodesHotThreadsRequest.interval(), "interval"));
    nodesHotThreadsRequest.snapshots(request.paramAsInt("snapshots", nodesHotThreadsRequest.snapshots()));
    nodesHotThreadsRequest.timeout(request.param("timeout"));
    client.admin().cluster().nodesHotThreads(nodesHotThreadsRequest, new RestResponseListener<NodesHotThreadsResponse>(channel) {
        @Override
        public RestResponse buildResponse(NodesHotThreadsResponse response) throws Exception {
            StringBuilder sb = new StringBuilder();
            for (NodeHotThreads node : response) {
                sb.append("::: ").append(node.getNode().toString()).append("\n");
                Strings.spaceify(3, node.getHotThreads(), sb);
                sb.append('\n');
            }
            return new BytesRestResponse(RestStatus.OK, sb.toString());
        }
    });
}
 

import org.elasticsearch.client.Client; //導入依賴的package包/類
public void testSimpleCloseOpenAlias() {
    Client client = client();
    createIndex("test1");
    ClusterHealthResponse healthResponse = client.admin().cluster().prepareHealth().setWaitForGreenStatus().execute().actionGet();
    assertThat(healthResponse.isTimedOut(), equalTo(false));

    IndicesAliasesResponse aliasesResponse = client.admin().indices().prepareAliases().addAlias("test1", "test1-alias").execute().actionGet();
    assertThat(aliasesResponse.isAcknowledged(), equalTo(true));

    CloseIndexResponse closeIndexResponse = client.admin().indices().prepareClose("test1-alias").execute().actionGet();
    assertThat(closeIndexResponse.isAcknowledged(), equalTo(true));
    assertIndexIsClosed("test1");

    OpenIndexResponse openIndexResponse = client.admin().indices().prepareOpen("test1-alias").execute().actionGet();
    assertThat(openIndexResponse.isAcknowledged(), equalTo(true));
    assertIndexIsOpened("test1");
}
 

import org.elasticsearch.client.Client; //導入依賴的package包/類
private static void deleteES(Client client) {
  BulkRequestBuilder bulkRequest = client.prepareBulk();
  SearchResponse response = client.prepareSearch(index).setTypes(type)
      .setSearchType(SearchType.DFS_QUERY_THEN_FETCH)
      .setQuery(QueryBuilders.matchAllQuery())
      .setFrom(0).setSize(20).setExplain(true).execute().actionGet();
  System.out.println("length: " + response.getHits().getHits().length);
  if (response.getHits().getHits().length != 0) {
    for (SearchHit hit : response.getHits()) {
      String id = hit.getId();
      System.out.println("id: " + id);
      bulkRequest.add(client.prepareDelete(index, type, id).request());
    }
    BulkResponse bulkResponse = bulkRequest.get();
    if (bulkResponse.hasFailures()) {
      for (BulkItemResponse item : bulkResponse.getItems()) {
        System.out.println(item.getFailureMessage());
      }
    } else {
      System.out.println("delete ok");
    }
  } else {
    System.out.println("delete ok");
  }
}
 

import org.elasticsearch.client.Client; //導入依賴的package包/類
@Override
public void handleRequest(final RestRequest request, final RestChannel channel, final Client client) throws Exception {
    MultiGetRequest multiGetRequest = new MultiGetRequest();
    multiGetRequest.refresh(request.paramAsBoolean("refresh", multiGetRequest.refresh()));
    multiGetRequest.preference(request.param("preference"));
    multiGetRequest.realtime(request.paramAsBoolean("realtime", null));
    multiGetRequest.ignoreErrorsOnGeneratedFields(request.paramAsBoolean("ignore_errors_on_generated_fields", false));

    String[] sFields = null;
    String sField = request.param("fields");
    if (sField != null) {
        sFields = Strings.splitStringByCommaToArray(sField);
    }

    FetchSourceContext defaultFetchSource = FetchSourceContext.parseFromRestRequest(request);
    multiGetRequest.add(request.param("index"), request.param("type"), sFields, defaultFetchSource, request.param("routing"), RestActions.getRestContent(request), allowExplicitIndex);

    client.multiGet(multiGetRequest, new RestToXContentListener<MultiGetResponse>(channel));
}
 

import org.elasticsearch.client.Client; //導入依賴的package包/類
@Override
public void handleRequest(final RestRequest request, final RestChannel channel, final Client client) {
    ForceMergeRequest mergeRequest = new ForceMergeRequest(Strings.splitStringByCommaToArray(request.param("index")));
    mergeRequest.indicesOptions(IndicesOptions.fromRequest(request, mergeRequest.indicesOptions()));
    mergeRequest.maxNumSegments(request.paramAsInt("max_num_segments", mergeRequest.maxNumSegments()));
    mergeRequest.onlyExpungeDeletes(request.paramAsBoolean("only_expunge_deletes", mergeRequest.onlyExpungeDeletes()));
    mergeRequest.flush(request.paramAsBoolean("flush", mergeRequest.flush()));
    client.admin().indices().forceMerge(mergeRequest, new RestBuilderListener<ForceMergeResponse>(channel) {
        @Override
        public RestResponse buildResponse(ForceMergeResponse response, XContentBuilder builder) throws Exception {
            builder.startObject();
            buildBroadcastShardsHeader(builder, request, response);
            builder.endObject();
            return new BytesRestResponse(OK, builder);
        }
    });
}
 

import org.elasticsearch.client.Client; //導入依賴的package包/類
@Override
public void handleRequest(final RestRequest request, final RestChannel channel, final Client client) throws Exception {
    boolean helpWanted = request.paramAsBoolean("help", false);
    if (helpWanted) {
        Table table = getTableWithHeader(request);
        int[] width = buildHelpWidths(table, request);
        BytesStreamOutput bytesOutput = channel.bytesOutput();
        UTF8StreamWriter out = new UTF8StreamWriter().setOutput(bytesOutput);
        for (Table.Cell cell : table.getHeaders()) {
            // need to do left-align always, so create new cells
            pad(new Table.Cell(cell.value), width[0], request, out);
            out.append(" | ");
            pad(new Table.Cell(cell.attr.containsKey("alias") ? cell.attr.get("alias") : ""), width[1], request, out);
            out.append(" | ");
            pad(new Table.Cell(cell.attr.containsKey("desc") ? cell.attr.get("desc") : "not available"), width[2], request, out);
            out.append("\n");
        }
        out.close();
        channel.sendResponse(new BytesRestResponse(RestStatus.OK, BytesRestResponse.TEXT_CONTENT_TYPE, bytesOutput.bytes()));
    } else {
        doRequest(request, channel, client);
    }
}
 

import org.elasticsearch.client.Client; //導入依賴的package包/類
@Inject
public ESAuthPluginAction(Settings settings, RestController controller, Client client) {
	super(settings, controller, client);
	
	Environment environment = new Environment(settings);
    this.config = ESAuthConfig.getInstance(environment);
      
	controller.registerHandler(RestRequest.Method.GET, "/_auth/config_reload", this);
	controller.registerHandler(RestRequest.Method.GET, "/_auth/config_show", this);
}
 

import org.elasticsearch.client.Client; //導入依賴的package包/類
public void testBucketBreaker() throws Exception {
    if (noopBreakerUsed()) {
        logger.info("--> noop breakers used, skipping test");
        return;
    }
    assertAcked(prepareCreate("cb-test", 1, Settings.builder().put(SETTING_NUMBER_OF_REPLICAS, between(0, 1))));
    Client client = client();

    // Make request breaker limited to a small amount
    Settings resetSettings = Settings.builder()
            .put(HierarchyCircuitBreakerService.REQUEST_CIRCUIT_BREAKER_LIMIT_SETTING.getKey(), "100b")
            .build();
    assertAcked(client.admin().cluster().prepareUpdateSettings().setTransientSettings(resetSettings));

    // index some different terms so we have some field data for loading
    int docCount = scaledRandomIntBetween(100, 1000);
    List<IndexRequestBuilder> reqs = new ArrayList<>();
    for (long id = 0; id < docCount; id++) {
        reqs.add(client.prepareIndex("cb-test", "type", Long.toString(id)).setSource("test", id));
    }
    indexRandom(true, reqs);

    // A terms aggregation on the "test" field should trip the bucket circuit breaker
    try {
        SearchResponse resp = client.prepareSearch("cb-test")
                .setQuery(matchAllQuery())
                .addAggregation(terms("my_terms").field("test"))
                .get();
        assertTrue("there should be shard failures", resp.getFailedShards() > 0);
        fail("aggregation should have tripped the breaker");
    } catch (Exception e) {
        String errMsg = "CircuitBreakingException[[request] Data too large, data for [<agg [my_terms]>] would be";
        assertThat("Exception: [" + e.toString() + "] should contain a CircuitBreakingException",
                e.toString(), containsString(errMsg));
        errMsg = "which is larger than the limit of [100/100b]]";
        assertThat("Exception: [" + e.toString() + "] should contain a CircuitBreakingException",
                e.toString(), containsString(errMsg));
    }
}
 

import org.elasticsearch.client.Client; //導入依賴的package包/類
public ElasticsearchSearchMultiVertexQuery(
        Client client,
        Graph graph,
        String[] vertexIds,
        String[] similarToFields,
        String similarToText,
        Options options,
        Authorizations authorizations
) {
    super(client, graph, similarToFields, similarToText, options, authorizations);
    hasId(vertexIds);
}