/*
* 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.action.count;
import org.elasticsearch.ElasticSearchException;
import org.elasticsearch.action.ShardOperationFailedException;
import org.elasticsearch.action.TransportActions;
import org.elasticsearch.action.support.DefaultShardOperationFailedException;
import org.elasticsearch.action.support.broadcast.BroadcastShardOperationFailedException;
import org.elasticsearch.action.support.broadcast.TransportBroadcastOperationAction;
import org.elasticsearch.cluster.ClusterService;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.block.ClusterBlockLevel;
import org.elasticsearch.cluster.routing.GroupShardsIterator;
import org.elasticsearch.cluster.routing.ShardRouting;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.shard.service.IndexShard;
import org.elasticsearch.indices.IndicesService;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.atomic.AtomicReferenceArray;
import static org.elasticsearch.common.collect.Lists.*;
/**
* @author kimchy (shay.banon)
*/
public class TransportCountAction extends TransportBroadcastOperationAction<CountRequest, CountResponse, ShardCountRequest, ShardCountResponse> {
private final IndicesService indicesService;
@Inject public TransportCountAction(Settings settings, ThreadPool threadPool, ClusterService clusterService, TransportService transportService, IndicesService indicesService) {
super(settings, threadPool, clusterService, transportService);
this.indicesService = indicesService;
}
@Override protected String executor() {
return ThreadPool.Names.SEARCH;
}
@Override protected String transportAction() {
return TransportActions.COUNT;
}
@Override protected String transportShardAction() {
return "indices/count/shard";
}
@Override protected CountRequest newRequest() {
return new CountRequest();
}
@Override protected ShardCountRequest newShardRequest() {
return new ShardCountRequest();
}
@Override protected ShardCountRequest newShardRequest(ShardRouting shard, CountRequest request) {
String[] filteringAliases = clusterService.state().metaData().filteringAliases(shard.index(), request.indices());
return new ShardCountRequest(shard.index(), shard.id(), filteringAliases, request);
}
@Override protected ShardCountResponse newShardResponse() {
return new ShardCountResponse();
}
@Override protected GroupShardsIterator shards(CountRequest request, String[] concreteIndices, ClusterState clusterState) {
Map<String, Set<String>> routingMap = clusterState.metaData().resolveSearchRouting(request.routing(), request.indices());
return clusterService.operationRouting().searchShards(clusterState, request.indices(), concreteIndices, request.queryHint(), routingMap, null);
}
@Override protected void checkBlock(CountRequest request, String[] concreteIndices, ClusterState state) {
for (String index : concreteIndices) {
state.blocks().indexBlocked(ClusterBlockLevel.READ, index);
}
}
@Override protected CountResponse newResponse(CountRequest request, AtomicReferenceArray shardsResponses, ClusterState clusterState) {
int successfulShards = 0;
int failedShards = 0;
long count = 0;
List<ShardOperationFailedException> shardFailures = null;
for (int i = 0; i < shardsResponses.length(); i++) {
Object shardResponse = shardsResponses.get(i);
if (shardResponse == null) {
failedShards++;
} else if (shardResponse instanceof BroadcastShardOperationFailedException) {
failedShards++;
if (shardFailures == null) {
shardFailures = newArrayList();
}
shardFailures.add(new DefaultShardOperationFailedException((BroadcastShardOperationFailedException) shardResponse));
} else {
count += ((ShardCountResponse) shardResponse).count();
successfulShards++;
}
}
return new CountResponse(count, shardsResponses.length(), successfulShards, failedShards, shardFailures);
}
@Override protected ShardCountResponse shardOperation(ShardCountRequest request) throws ElasticSearchException {
IndexShard indexShard = indicesService.indexServiceSafe(request.index()).shardSafe(request.shardId());
long count = indexShard.count(request.minScore(), request.querySource(), request.querySourceOffset(), request.querySourceLength(),
request.filteringAliases(), request.types());
return new ShardCountResponse(request.index(), request.shardId(), count);
}
}