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Add /_cat/nodes.

This commit is contained in:
Andrew Raines 2013-07-04 15:40:09 -05:00
parent bcacbff096
commit 1645e4230f
2 changed files with 154 additions and 0 deletions
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2
src/main/java/org/elasticsearch/rest/action/RestActionModule.java
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@ -68,6 +68,7 @@ import org.elasticsearch.rest.action.admin.indices.warmer.get.RestGetWarmerActio
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.RestNodesAction;
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(RestShardsAction.class).asEagerSingleton();
bind(RestMasterAction.class).asEagerSingleton();
bind(RestNodesAction.class).asEagerSingleton();
}
}

152
src/main/java/org/elasticsearch/rest/action/cat/RestNodesAction.java Normal file
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@ -0,0 +1,152 @@
/*
* 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.node.info.NodeInfo;
import org.elasticsearch.action.admin.cluster.node.info.NodesInfoRequest;
import org.elasticsearch.action.admin.cluster.node.info.NodesInfoResponse;
import org.elasticsearch.action.admin.cluster.node.stats.NodeStats;
import org.elasticsearch.action.admin.cluster.node.stats.NodesStatsRequest;
import org.elasticsearch.action.admin.cluster.node.stats.NodesStatsResponse;
import org.elasticsearch.action.admin.cluster.state.ClusterStateRequest;
import org.elasticsearch.action.admin.cluster.state.ClusterStateResponse;
import org.elasticsearch.client.Client;
import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.common.Table;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.InetSocketTransportAddress;
import org.elasticsearch.rest.*;
import org.elasticsearch.rest.action.support.RestTable;
import java.io.IOException;
import static org.elasticsearch.rest.RestRequest.Method.GET;
public class RestNodesAction extends BaseRestHandler {
@Inject
public RestNodesAction(Settings settings, Client client, RestController controller) {
super(settings, client);
controller.registerHandler(GET, "/_cat/nodes", this);
}
@Override
public void handleRequest(final RestRequest request, final RestChannel channel) {
final ClusterStateRequest clusterStateRequest = new ClusterStateRequest();
clusterStateRequest.filterMetaData(true);
clusterStateRequest.local(request.paramAsBoolean("local", clusterStateRequest.local()));
clusterStateRequest.masterNodeTimeout(request.paramAsTime("master_timeout", clusterStateRequest.masterNodeTimeout()));
client.admin().cluster().state(clusterStateRequest, new ActionListener<ClusterStateResponse>() {
@Override
public void onResponse(final ClusterStateResponse clusterStateResponse) {
NodesInfoRequest nodesInfoRequest = new NodesInfoRequest();
nodesInfoRequest.clear().jvm(true).os(true);
client.admin().cluster().nodesInfo(nodesInfoRequest, new ActionListener<NodesInfoResponse>() {
@Override
public void onResponse(final NodesInfoResponse nodesInfoResponse) {
NodesStatsRequest nodesStatsRequest = new NodesStatsRequest();
nodesStatsRequest.clear().jvm(true);
client.admin().cluster().nodesStats(nodesStatsRequest, new ActionListener<NodesStatsResponse>() {
@Override
public void onResponse(NodesStatsResponse nodesStatsResponse) {
try {
channel.sendResponse(RestTable.buildResponse(buildTable(clusterStateResponse, nodesInfoResponse, nodesStatsResponse), request, channel));
} 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);
}
}
});
}
@Override
public void onFailure(Throwable e) {
try {
channel.sendResponse(new XContentThrowableRestResponse(request, e));
} catch (IOException e1) {
logger.error("Failed to send failure response", e1);
}
}
});
}
@Override
public void onFailure(Throwable e) {
try {
channel.sendResponse(new XContentThrowableRestResponse(request, e));
} catch (IOException e1) {
logger.error("Failed to send failure response", e1);
}
}
});
}
private Table buildTable(ClusterStateResponse state, NodesInfoResponse nodesInfo, NodesStatsResponse nodesStats) {
Table table = new Table();
table.startHeaders();
table.addCell("id");
table.addCell("ip");
table.addCell("port");
// Considering supporting params like jvm, os, http to turn various columns on/off
table.addCell("jdk");
table.addCell("heapmax", "text-align:right;");
table.addCell("memmax", "text-align:right;");
table.addCell("uptime", "text-align:right;");
table.addCell("data/client");
table.addCell("master");
table.addCell("node");
table.endHeaders();
for (DiscoveryNode node : state.getState().nodes()) {
String masterId = state.getState().nodes().masterNodeId();
NodeInfo info = nodesInfo.getNodesMap().get(node.id());
NodeStats stats = nodesStats.getNodesMap().get(node.id());
table.startRow();
table.addCell(node.id());
table.addCell(((InetSocketTransportAddress) node.address()).address().getAddress().getHostAddress());
table.addCell(((InetSocketTransportAddress) node.address()).address().getPort());
table.addCell(info.getJvm().version());
table.addCell(info.getJvm().mem().heapMax());
table.addCell(info.getOs().mem() == null ? null : info.getOs().mem().total()); // sigar fails to load in IntelliJ
table.addCell(stats.getJvm().uptime());
table.addCell(node.clientNode() ? "c" : node.dataNode() ? "d" : null);
table.addCell(masterId.equals(node.id()) ? "*" : node.masterNode() ? "m" : null);
table.addCell(node.name());
table.endRow();
}
return table;
}
}