/*
* 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.segments;
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.BroadcastShardOperationRequest;
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.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.service.InternalIndexService;
import org.elasticsearch.index.shard.service.InternalIndexShard;
import org.elasticsearch.indices.IndicesService;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.atomic.AtomicReferenceArray;
import static org.elasticsearch.common.collect.Lists.*;
/**
* @author kimchy (shay.banon)
*/
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) {
super(settings, threadPool, clusterService, transportService);
this.indicesService = indicesService;
}
@Override protected String executor() {
return ThreadPool.Names.MANAGEMENT;
}
@Override protected String transportAction() {
return TransportActions.Admin.Indices.SEGMENTS;
}
@Override protected String transportShardAction() {
return "indices/segments/shard";
}
@Override protected IndicesSegmentsRequest newRequest() {
return new IndicesSegmentsRequest();
}
@Override protected boolean ignoreNonActiveExceptions() {
return true;
}
/**
* Segments goes across *all* active shards.
*/
@Override protected GroupShardsIterator shards(IndicesSegmentsRequest request, String[] concreteIndices, ClusterState clusterState) {
return clusterState.routingTable().allActiveShardsGrouped(concreteIndices, true);
}
@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(ShardRouting shard, IndicesSegmentsRequest request) {
return new IndexShardSegmentRequest(shard.index(), shard.id(), request);
}
@Override protected ShardSegments newShardResponse() {
return new ShardSegments();
}
@Override protected ShardSegments shardOperation(IndexShardSegmentRequest request) throws ElasticSearchException {
InternalIndexService indexService = (InternalIndexService) indicesService.indexServiceSafe(request.index());
InternalIndexShard indexShard = (InternalIndexShard) indexService.shardSafe(request.shardId());
return new ShardSegments(indexShard.routingEntry(), indexShard.engine().segments());
}
public static class IndexShardSegmentRequest extends BroadcastShardOperationRequest {
IndexShardSegmentRequest() {
}
IndexShardSegmentRequest(String index, int shardId, IndicesSegmentsRequest request) {
super(index, shardId);
}
@Override public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
}
@Override public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
}
}
}