org.elasticsearch.action.admin.indices.flush.TransportFlushAction Maven / Gradle / Ivy

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/*
 * Licensed to ElasticSearch and Shay Banon 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.flush;

import org.elasticsearch.ElasticSearchException;
import org.elasticsearch.action.ShardOperationFailedException;
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.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.engine.Engine;
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.concurrent.atomic.AtomicReferenceArray;

import static com.google.common.collect.Lists.newArrayList;

/**
 * Flush Action.
 */
public class TransportFlushAction extends TransportBroadcastOperationAction {

    private final IndicesService indicesService;

    @Inject
    public TransportFlushAction(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.FLUSH;
    }

    @Override
    protected String transportAction() {
        return FlushAction.NAME;
    }

    @Override
    protected FlushRequest newRequest() {
        return new FlushRequest();
    }

    @Override
    protected boolean ignoreNonActiveExceptions() {
        return true;
    }

    @Override
    protected FlushResponse newResponse(FlushRequest request, AtomicReferenceArray shardsResponses, ClusterState clusterState) {
        int successfulShards = 0;
        int failedShards = 0;
        List shardFailures = null;
        for (int i = 0; i < shardsResponses.length(); i++) {
            Object shardResponse = shardsResponses.get(i);
            if (shardResponse == null) {
                // a non active shard, ignore
            } else if (shardResponse instanceof BroadcastShardOperationFailedException) {
                failedShards++;
                if (shardFailures == null) {
                    shardFailures = newArrayList();
                }
                shardFailures.add(new DefaultShardOperationFailedException((BroadcastShardOperationFailedException) shardResponse));
            } else {
                successfulShards++;
            }
        }
        return new FlushResponse(shardsResponses.length(), successfulShards, failedShards, shardFailures);
    }

    @Override
    protected ShardFlushRequest newShardRequest() {
        return new ShardFlushRequest();
    }

    @Override
    protected ShardFlushRequest newShardRequest(ShardRouting shard, FlushRequest request) {
        return new ShardFlushRequest(shard.index(), shard.id(), request);
    }

    @Override
    protected ShardFlushResponse newShardResponse() {
        return new ShardFlushResponse();
    }

    @Override
    protected ShardFlushResponse shardOperation(ShardFlushRequest request) throws ElasticSearchException {
        IndexShard indexShard = indicesService.indexServiceSafe(request.index()).shardSafe(request.shardId());
        indexShard.flush(new Engine.Flush().refresh(request.refresh()).type(request.full() ? Engine.Flush.Type.NEW_WRITER : Engine.Flush.Type.COMMIT_TRANSLOG).force(request.force()));
        return new ShardFlushResponse(request.index(), request.shardId());
    }

    /**
     * The refresh request works against *all* shards.
     */
    @Override
    protected GroupShardsIterator shards(ClusterState clusterState, FlushRequest request, String[] concreteIndices) {
        return clusterState.routingTable().allActiveShardsGrouped(concreteIndices, true);
    }

    @Override
    protected ClusterBlockException checkGlobalBlock(ClusterState state, FlushRequest request) {
        return state.blocks().globalBlockedException(ClusterBlockLevel.METADATA);
    }

    @Override
    protected ClusterBlockException checkRequestBlock(ClusterState state, FlushRequest countRequest, String[] concreteIndices) {
        return state.blocks().indicesBlockedException(ClusterBlockLevel.METADATA, concreteIndices);
    }
}