/*
* Licensed to Elastic Search and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Elastic Search 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.admin.cluster.node.stats;
import org.elasticsearch.action.ActionListener;
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.client.Client;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.rest.BaseRestHandler;
import org.elasticsearch.rest.RestChannel;
import org.elasticsearch.rest.RestController;
import org.elasticsearch.rest.RestRequest;
import org.elasticsearch.rest.RestStatus;
import org.elasticsearch.rest.XContentRestResponse;
import org.elasticsearch.rest.XContentThrowableRestResponse;
import org.elasticsearch.rest.action.support.RestActions;
import org.elasticsearch.rest.action.support.RestXContentBuilder;
import java.io.IOException;
/**
* @author kimchy (shay.banon)
*/
public class RestNodesStatsAction extends BaseRestHandler {
@Inject public RestNodesStatsAction(Settings settings, Client client, RestController controller) {
super(settings, client);
controller.registerHandler(RestRequest.Method.GET, "/_cluster/nodes/stats", this);
controller.registerHandler(RestRequest.Method.GET, "/_cluster/nodes/{nodeId}/stats", this);
}
@Override public void handleRequest(final RestRequest request, final RestChannel channel) {
String[] nodesIds = RestActions.splitNodes(request.param("nodeId"));
NodesStatsRequest nodesStatsRequest = new NodesStatsRequest(nodesIds);
nodesStatsRequest.listenerThreaded(false);
client.admin().cluster().nodesStats(nodesStatsRequest, new ActionListener<NodesStatsResponse>() {
@Override public void onResponse(NodesStatsResponse result) {
try {
XContentBuilder builder = RestXContentBuilder.restContentBuilder(request);
builder.startObject();
builder.field("cluster_name", result.clusterName().value());
builder.startObject("nodes");
for (NodeStats nodeStats : result) {
builder.startObject(nodeStats.node().id(), XContentBuilder.FieldCaseConversion.NONE);
builder.field("name", nodeStats.node().name());
if (nodeStats.indices() != null) {
nodeStats.indices().toXContent(builder, request);
}
if (nodeStats.os() != null) {
nodeStats.os().toXContent(builder, request);
}
if (nodeStats.process() != null) {
nodeStats.process().toXContent(builder, request);
}
if (nodeStats.jvm() != null) {
nodeStats.jvm().toXContent(builder, request);
}
if (nodeStats.network() != null) {
nodeStats.network().toXContent(builder, request);
}
if (nodeStats.transport() != null) {
nodeStats.transport().toXContent(builder, request);
}
if (nodeStats.http() != null) {
nodeStats.http().toXContent(builder, request);
}
builder.endObject();
}
builder.endObject();
builder.endObject();
channel.sendResponse(new XContentRestResponse(request, RestStatus.OK, builder));
} catch (Exception 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);
}
}
});
}
}