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Elasticsearch subproject :server
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.action.admin.indices.forcemerge;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.ActionRunnable;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.DefaultShardOperationFailedException;
import org.elasticsearch.action.support.broadcast.node.TransportBroadcastByNodeAction;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.block.ClusterBlockException;
import org.elasticsearch.cluster.block.ClusterBlockLevel;
import org.elasticsearch.cluster.metadata.IndexNameExpressionResolver;
import org.elasticsearch.cluster.routing.ShardRouting;
import org.elasticsearch.cluster.routing.ShardsIterator;
import org.elasticsearch.cluster.service.ClusterService;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.index.shard.IndexShard;
import org.elasticsearch.indices.IndicesService;
import org.elasticsearch.tasks.CancellableTask;
import org.elasticsearch.tasks.Task;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.io.IOException;
import java.util.List;
/**
* ForceMerge index/indices action.
*/
public class TransportForceMergeAction extends TransportBroadcastByNodeAction<
ForceMergeRequest,
ForceMergeResponse,
TransportBroadcastByNodeAction.EmptyResult> {
private final IndicesService indicesService;
private final ThreadPool threadPool;
@Inject
public TransportForceMergeAction(
ClusterService clusterService,
TransportService transportService,
IndicesService indicesService,
ActionFilters actionFilters,
IndexNameExpressionResolver indexNameExpressionResolver
) {
super(
ForceMergeAction.NAME,
clusterService,
transportService,
actionFilters,
indexNameExpressionResolver,
ForceMergeRequest::new,
ThreadPool.Names.SAME
);
this.indicesService = indicesService;
this.threadPool = transportService.getThreadPool();
}
@Override
protected EmptyResult readShardResult(StreamInput in) throws IOException {
return EmptyResult.readEmptyResultFrom(in);
}
@Override
protected ForceMergeResponse newResponse(
ForceMergeRequest request,
int totalShards,
int successfulShards,
int failedShards,
List responses,
List shardFailures,
ClusterState clusterState
) {
return new ForceMergeResponse(totalShards, successfulShards, failedShards, shardFailures);
}
@Override
protected ForceMergeRequest readRequestFrom(StreamInput in) throws IOException {
return new ForceMergeRequest(in);
}
@Override
protected void shardOperation(
ForceMergeRequest request,
ShardRouting shardRouting,
Task task,
ActionListener listener
) {
assert (task instanceof CancellableTask) == false; // TODO: add cancellation handling here once the task supports it
threadPool.executor(ThreadPool.Names.FORCE_MERGE).execute(ActionRunnable.supply(listener, () -> {
IndexShard indexShard = indicesService.indexServiceSafe(shardRouting.shardId().getIndex())
.getShard(shardRouting.shardId().id());
indexShard.forceMerge(request);
return EmptyResult.INSTANCE;
}));
}
/**
* The refresh request works against *all* shards.
*/
@Override
protected ShardsIterator shards(ClusterState clusterState, ForceMergeRequest request, String[] concreteIndices) {
return clusterState.routingTable().allShards(concreteIndices);
}
@Override
protected ClusterBlockException checkGlobalBlock(ClusterState state, ForceMergeRequest request) {
return state.blocks().globalBlockedException(ClusterBlockLevel.METADATA_WRITE);
}
@Override
protected ClusterBlockException checkRequestBlock(ClusterState state, ForceMergeRequest request, String[] concreteIndices) {
return state.blocks().indicesBlockedException(ClusterBlockLevel.METADATA_WRITE, concreteIndices);
}
}