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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.indices.segments;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.ShardOperationFailedException;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.DefaultShardOperationFailedException;
import org.elasticsearch.action.support.broadcast.BroadcastShardOperationFailedException;
import org.elasticsearch.action.support.broadcast.BroadcastShardOperationRequest;
import org.elasticsearch.action.support.broadcast.TransportBroadcastOperationAction;
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.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.InternalIndexService;
import org.elasticsearch.index.shard.ShardId;
import org.elasticsearch.index.shard.service.InternalIndexShard;
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 com.google.common.collect.Lists.newArrayList;
/**
*
*/
public class TransportIndicesSegmentsAction extends TransportBroadcastOperationAction<IndicesSegmentsRequest, IndicesSegmentResponse, TransportIndicesSegmentsAction.IndexShardSegmentRequest, ShardSegments> {
private final IndicesService indicesService;
@Inject
public TransportIndicesSegmentsAction(Settings settings, ThreadPool threadPool, ClusterService clusterService, TransportService transportService,
IndicesService indicesService, ActionFilters actionFilters) {
super(settings, IndicesSegmentsAction.NAME, threadPool, clusterService, transportService, actionFilters);
this.indicesService = indicesService;
}
@Override
protected String executor() {
return ThreadPool.Names.MANAGEMENT;
}
@Override
protected IndicesSegmentsRequest newRequest() {
return new IndicesSegmentsRequest();
}
/**
* Segments goes across *all* active shards.
*/
@Override
protected GroupShardsIterator shards(ClusterState clusterState, IndicesSegmentsRequest request, String[] concreteIndices) {
return clusterState.routingTable().allActiveShardsGrouped(concreteIndices, true);
}
@Override
protected ClusterBlockException checkGlobalBlock(ClusterState state, IndicesSegmentsRequest request) {
return state.blocks().globalBlockedException(ClusterBlockLevel.METADATA);
}
@Override
protected ClusterBlockException checkRequestBlock(ClusterState state, IndicesSegmentsRequest countRequest, String[] concreteIndices) {
return state.blocks().indicesBlockedException(ClusterBlockLevel.METADATA, concreteIndices);
}
@Override
protected IndicesSegmentResponse newResponse(IndicesSegmentsRequest request, AtomicReferenceArray shardsResponses, ClusterState clusterState) {
int successfulShards = 0;
int failedShards = 0;
List<ShardOperationFailedException> shardFailures = null;
final List<ShardSegments> shards = newArrayList();
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 {
shards.add((ShardSegments) shardResponse);
successfulShards++;
}
}
return new IndicesSegmentResponse(shards.toArray(new ShardSegments[shards.size()]), clusterState, shardsResponses.length(), successfulShards, failedShards, shardFailures);
}
@Override
protected IndexShardSegmentRequest newShardRequest() {
return new IndexShardSegmentRequest();
}
@Override
protected IndexShardSegmentRequest newShardRequest(int numShards, ShardRouting shard, IndicesSegmentsRequest request) {
return new IndexShardSegmentRequest(shard.shardId(), request);
}
@Override
protected ShardSegments newShardResponse() {
return new ShardSegments();
}
@Override
protected ShardSegments shardOperation(IndexShardSegmentRequest request) throws ElasticsearchException {
InternalIndexService indexService = (InternalIndexService) indicesService.indexServiceSafe(request.shardId().getIndex());
InternalIndexShard indexShard = (InternalIndexShard) indexService.shardSafe(request.shardId().id());
return new ShardSegments(indexShard.routingEntry(), indexShard.engine().segments());
}
static class IndexShardSegmentRequest extends BroadcastShardOperationRequest {
IndexShardSegmentRequest() {
}
IndexShardSegmentRequest(ShardId shardId, IndicesSegmentsRequest request) {
super(shardId, request);
}
}
}