/*
* 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.action.admin.cluster.node.hotthreads;
import com.google.common.collect.Lists;
import org.elasticsearch.ElasticSearchException;
import org.elasticsearch.action.support.nodes.NodeOperationRequest;
import org.elasticsearch.action.support.nodes.TransportNodesOperationAction;
import org.elasticsearch.cluster.ClusterName;
import org.elasticsearch.cluster.ClusterService;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.monitor.jvm.HotThreads;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.atomic.AtomicReferenceArray;
/**
*
*/
public class TransportNodesHotThreadsAction extends TransportNodesOperationAction<NodesHotThreadsRequest, NodesHotThreadsResponse, TransportNodesHotThreadsAction.NodeRequest, NodeHotThreads> {
@Inject
public TransportNodesHotThreadsAction(Settings settings, ClusterName clusterName, ThreadPool threadPool,
ClusterService clusterService, TransportService transportService) {
super(settings, clusterName, threadPool, clusterService, transportService);
}
@Override
protected String executor() {
return ThreadPool.Names.GENERIC;
}
@Override
protected String transportAction() {
return NodesHotThreadsAction.NAME;
}
@Override
protected NodesHotThreadsResponse newResponse(NodesHotThreadsRequest request, AtomicReferenceArray responses) {
final List<NodeHotThreads> nodes = Lists.newArrayList();
for (int i = 0; i < responses.length(); i++) {
Object resp = responses.get(i);
if (resp instanceof NodeHotThreads) {
nodes.add((NodeHotThreads) resp);
}
}
return new NodesHotThreadsResponse(clusterName, nodes.toArray(new NodeHotThreads[nodes.size()]));
}
@Override
protected NodesHotThreadsRequest newRequest() {
return new NodesHotThreadsRequest();
}
@Override
protected NodeRequest newNodeRequest() {
return new NodeRequest();
}
@Override
protected NodeRequest newNodeRequest(String nodeId, NodesHotThreadsRequest request) {
return new NodeRequest(nodeId, request);
}
@Override
protected NodeHotThreads newNodeResponse() {
return new NodeHotThreads();
}
@Override
protected NodeHotThreads nodeOperation(NodeRequest request) throws ElasticSearchException {
HotThreads hotThreads = new HotThreads()
.busiestThreads(request.request.threads)
.type(request.request.type)
.interval(request.request.interval)
.threadElementsSnapshotCount(request.request.snapshots);
try {
return new NodeHotThreads(clusterService.state().nodes().localNode(), hotThreads.detect());
} catch (Exception e) {
throw new ElasticSearchException("failed to detect hot threads", e);
}
}
@Override
protected boolean accumulateExceptions() {
return false;
}
static class NodeRequest extends NodeOperationRequest {
NodesHotThreadsRequest request;
NodeRequest() {
}
NodeRequest(String nodeId, NodesHotThreadsRequest request) {
super(request, nodeId);
this.request = request;
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
request = new NodesHotThreadsRequest();
request.readFrom(in);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
request.writeTo(out);
}
}
}