diff --git a/src/main/java/org/elasticsearch/rest/action/RestActionModule.java b/src/main/java/org/elasticsearch/rest/action/RestActionModule.java index 108f2679d48..35418a4d429 100644 --- a/src/main/java/org/elasticsearch/rest/action/RestActionModule.java +++ b/src/main/java/org/elasticsearch/rest/action/RestActionModule.java @@ -67,6 +67,7 @@ import org.elasticsearch.rest.action.admin.indices.warmer.delete.RestDeleteWarme import org.elasticsearch.rest.action.admin.indices.warmer.get.RestGetWarmerAction; import org.elasticsearch.rest.action.admin.indices.warmer.put.RestPutWarmerAction; import org.elasticsearch.rest.action.bulk.RestBulkAction; +import org.elasticsearch.rest.action.cat.RestMasterAction; import org.elasticsearch.rest.action.cat.RestShardsAction; import org.elasticsearch.rest.action.count.RestCountAction; import org.elasticsearch.rest.action.delete.RestDeleteAction; @@ -185,5 +186,6 @@ public class RestActionModule extends AbstractModule { bind(RestExplainAction.class).asEagerSingleton(); bind(RestShardsAction.class).asEagerSingleton(); + bind(RestMasterAction.class).asEagerSingleton(); } } diff --git a/src/main/java/org/elasticsearch/rest/action/cat/RestMasterAction.java b/src/main/java/org/elasticsearch/rest/action/cat/RestMasterAction.java new file mode 100644 index 00000000000..9bb39db1c84 --- /dev/null +++ b/src/main/java/org/elasticsearch/rest/action/cat/RestMasterAction.java @@ -0,0 +1,85 @@ +/* + * Licensed to ElasticSearch and Shay Banon under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. ElasticSearch licenses this + * file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.elasticsearch.rest.action.cat; + +import org.elasticsearch.action.ActionListener; +import org.elasticsearch.action.admin.cluster.state.ClusterStateRequest; +import org.elasticsearch.action.admin.cluster.state.ClusterStateResponse; +import org.elasticsearch.client.Client; +import org.elasticsearch.common.inject.Inject; +import org.elasticsearch.common.settings.Settings; +import org.elasticsearch.common.table.Row; +import org.elasticsearch.common.table.Table; +import org.elasticsearch.common.transport.InetSocketTransportAddress; +import org.elasticsearch.rest.*; + +import java.io.IOException; + +import static org.elasticsearch.rest.RestRequest.Method.GET; + +public class RestMasterAction extends BaseRestHandler { + @Inject + public RestMasterAction(Settings settings, Client client, RestController controller) { + super(settings, client); + controller.registerHandler(GET, "/_cat/master", this); + } + + @Override + public void handleRequest(final RestRequest request, final RestChannel channel) { + final boolean verbose = request.paramAsBoolean("verbose", false); + final StringBuilder out = new StringBuilder(); + + final ClusterStateRequest clusterStateRequest = new ClusterStateRequest(); clusterStateRequest.listenerThreaded(false); + clusterStateRequest.filterMetaData(true); + clusterStateRequest.local(false); + + client.admin().cluster().state(clusterStateRequest, new ActionListener() { + @Override + public void onResponse(final ClusterStateResponse clusterStateResponse) { + try { + RestStatus status = RestStatus.OK; + Table tab = new Table(); + tab.addRow(new Row() + .addCell("id") + .addCell("transport addr") + .addCell("name"), true); + tab.addRow(new Row() + .addCell(clusterStateResponse.getState().nodes().masterNode().id()) + .addCell(((InetSocketTransportAddress)clusterStateResponse.getState().nodes() + .masterNode().address()).address().getHostString()) + .addCell(clusterStateResponse.getState().nodes().masterNode().name())); + + channel.sendResponse(new StringRestResponse(status, tab.render(verbose))); + } catch (Throwable e) { + onFailure(e); + } + } + + @Override + public void onFailure(Throwable e) { + try { + channel.sendResponse(new XContentThrowableRestResponse(request, e)); + } catch (IOException e1) { + logger.error("Failed to send failure response", e1); + } + } + }); + } +}