/*
* 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.admin.indices.cache.clear;
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.routing.GroupShardsIterator;
import org.elasticsearch.cluster.routing.ShardRouting;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.service.IndexService;
import org.elasticsearch.indices.IndicesService;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.util.List;
import java.util.concurrent.atomic.AtomicReferenceArray;
import static org.elasticsearch.common.collect.Lists.*;
/**
* Indices clear cache action.
*
* @author kimchy (shay.banon)
*/
public class TransportClearIndicesCacheAction extends TransportBroadcastOperationAction<ClearIndicesCacheRequest, ClearIndicesCacheResponse, ShardClearIndicesCacheRequest, ShardClearIndicesCacheResponse> {
private final IndicesService indicesService;
@Inject public TransportClearIndicesCacheAction(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.MANAGEMENT;
}
@Override protected String transportAction() {
return TransportActions.Admin.Indices.Cache.CLEAR;
}
@Override protected String transportShardAction() {
return "indices/cache/clear/shard";
}
@Override protected ClearIndicesCacheRequest newRequest() {
return new ClearIndicesCacheRequest();
}
@Override protected boolean ignoreNonActiveExceptions() {
return true;
}
@Override protected ClearIndicesCacheResponse newResponse(ClearIndicesCacheRequest request, AtomicReferenceArray shardsResponses, ClusterState clusterState) {
int successfulShards = 0;
int failedShards = 0;
List<ShardOperationFailedException> shardFailures = null;
for (int i = 0; i < shardsResponses.length(); i++) {
Object shardResponse = shardsResponses.get(i);
if (shardResponse == null) {
// simply ignore non active shards
} else if (shardResponse instanceof BroadcastShardOperationFailedException) {
failedShards++;
if (shardFailures == null) {
shardFailures = newArrayList();
}
shardFailures.add(new DefaultShardOperationFailedException((BroadcastShardOperationFailedException) shardResponse));
} else {
successfulShards++;
}
}
return new ClearIndicesCacheResponse(shardsResponses.length(), successfulShards, failedShards, shardFailures);
}
@Override protected ShardClearIndicesCacheRequest newShardRequest() {
return new ShardClearIndicesCacheRequest();
}
@Override protected ShardClearIndicesCacheRequest newShardRequest(ShardRouting shard, ClearIndicesCacheRequest request) {
return new ShardClearIndicesCacheRequest(shard.index(), shard.id(), request);
}
@Override protected ShardClearIndicesCacheResponse newShardResponse() {
return new ShardClearIndicesCacheResponse();
}
@Override protected ShardClearIndicesCacheResponse shardOperation(ShardClearIndicesCacheRequest request) throws ElasticSearchException {
IndexService service = indicesService.indexService(request.index());
if (service != null) {
// we always clear the query cache
service.cache().queryParserCache().clear();
boolean clearedAtLeastOne = false;
if (request.filterCache()) {
clearedAtLeastOne = true;
service.cache().filter().clear();
}
if (request.fieldDataCache()) {
clearedAtLeastOne = true;
service.cache().fieldData().clear();
}
if (request.idCache()) {
clearedAtLeastOne = true;
service.cache().idCache().clear();
}
if (request.bloomCache()) {
clearedAtLeastOne = true;
service.cache().bloomCache().clear();
}
if (!clearedAtLeastOne) {
service.cache().clear();
}
service.cache().invalidateCache();
}
return new ShardClearIndicesCacheResponse(request.index(), request.shardId());
}
/**
* The refresh request works against *all* shards.
*/
@Override protected GroupShardsIterator shards(ClearIndicesCacheRequest request, String[] concreteIndices, ClusterState clusterState) {
return clusterState.routingTable().allActiveShardsGrouped(concreteIndices, true);
}
}