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* Licensed to Elasticsearch 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.shards;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.master.TransportMasterNodeReadOperationAction;
import org.elasticsearch.cluster.ClusterService;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.block.ClusterBlockException;
import org.elasticsearch.cluster.block.ClusterBlockLevel;
import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.cluster.routing.GroupShardsIterator;
import org.elasticsearch.cluster.routing.ShardIterator;
import org.elasticsearch.cluster.routing.ShardRouting;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.util.Map;
import java.util.Set;
import static com.google.common.collect.Sets.newHashSet;
/**
*/
public class TransportClusterSearchShardsAction extends TransportMasterNodeReadOperationAction<ClusterSearchShardsRequest, ClusterSearchShardsResponse> {
@Inject
public TransportClusterSearchShardsAction(Settings settings, TransportService transportService, ClusterService clusterService, ThreadPool threadPool, ActionFilters actionFilters) {
super(settings, ClusterSearchShardsAction.NAME, transportService, clusterService, threadPool, actionFilters);
}
@Override
protected String executor() {
// all in memory work here...
return ThreadPool.Names.SAME;
}
@Override
protected ClusterBlockException checkBlock(ClusterSearchShardsRequest request, ClusterState state) {
return state.blocks().indicesBlockedException(ClusterBlockLevel.METADATA, state.metaData().concreteIndices(request.indicesOptions(), request.indices()));
}
@Override
protected ClusterSearchShardsRequest newRequest() {
return new ClusterSearchShardsRequest();
}
@Override
protected ClusterSearchShardsResponse newResponse() {
return new ClusterSearchShardsResponse();
}
@Override
protected void masterOperation(final ClusterSearchShardsRequest request, final ClusterState state, final ActionListener<ClusterSearchShardsResponse> listener) throws ElasticsearchException {
ClusterState clusterState = clusterService.state();
String[] concreteIndices = clusterState.metaData().concreteIndices(request.indicesOptions(), request.indices());
Map<String, Set<String>> routingMap = clusterState.metaData().resolveSearchRouting(request.routing(), request.indices());
Set<String> nodeIds = newHashSet();
GroupShardsIterator groupShardsIterator = clusterService.operationRouting().searchShards(clusterState, request.indices(), concreteIndices, routingMap, request.preference());
ShardRouting shard;
ClusterSearchShardsGroup[] groupResponses = new ClusterSearchShardsGroup[groupShardsIterator.size()];
int currentGroup = 0;
for (ShardIterator shardIt : groupShardsIterator) {
String index = shardIt.shardId().getIndex();
int shardId = shardIt.shardId().getId();
ShardRouting[] shardRoutings = new ShardRouting[shardIt.size()];
int currentShard = 0;
shardIt.reset();
while ((shard = shardIt.nextOrNull()) != null) {
shardRoutings[currentShard++] = shard;
nodeIds.add(shard.currentNodeId());
}
groupResponses[currentGroup++] = new ClusterSearchShardsGroup(index, shardId, shardRoutings);
}
DiscoveryNode[] nodes = new DiscoveryNode[nodeIds.size()];
int currentNode = 0;
for (String nodeId : nodeIds) {
nodes[currentNode++] = clusterState.getNodes().get(nodeId);
}
listener.onResponse(new ClusterSearchShardsResponse(groupResponses, nodes));
}
}