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/*
* SPDX-License-Identifier: Apache-2.0
*
* The OpenSearch Contributors require contributions made to
* this file be licensed under the Apache-2.0 license or a
* compatible open source license.
*/
/*
* 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.
*/
/*
* Modifications Copyright OpenSearch Contributors. See
* GitHub history for details.
*/
package org.opensearch.action.admin.indices.cache.clear;
import org.opensearch.action.support.ActionFilters;
import org.opensearch.action.support.DefaultShardOperationFailedException;
import org.opensearch.action.support.broadcast.node.TransportBroadcastByNodeAction;
import org.opensearch.cluster.ClusterState;
import org.opensearch.cluster.block.ClusterBlockException;
import org.opensearch.cluster.block.ClusterBlockLevel;
import org.opensearch.cluster.metadata.IndexNameExpressionResolver;
import org.opensearch.cluster.routing.ShardRouting;
import org.opensearch.cluster.routing.ShardsIterator;
import org.opensearch.cluster.service.ClusterService;
import org.opensearch.common.inject.Inject;
import org.opensearch.common.io.stream.StreamInput;
import org.opensearch.indices.IndicesService;
import org.opensearch.threadpool.ThreadPool;
import org.opensearch.transport.TransportService;
import java.io.IOException;
import java.util.List;
/**
* Indices clear cache action.
*/
public class TransportClearIndicesCacheAction extends TransportBroadcastByNodeAction<
ClearIndicesCacheRequest,
ClearIndicesCacheResponse,
TransportBroadcastByNodeAction.EmptyResult> {
private final IndicesService indicesService;
@Inject
public TransportClearIndicesCacheAction(
ClusterService clusterService,
TransportService transportService,
IndicesService indicesService,
ActionFilters actionFilters,
IndexNameExpressionResolver indexNameExpressionResolver
) {
super(
ClearIndicesCacheAction.NAME,
clusterService,
transportService,
actionFilters,
indexNameExpressionResolver,
ClearIndicesCacheRequest::new,
ThreadPool.Names.MANAGEMENT,
false
);
this.indicesService = indicesService;
}
@Override
protected EmptyResult readShardResult(StreamInput in) throws IOException {
return EmptyResult.readEmptyResultFrom(in);
}
@Override
protected ClearIndicesCacheResponse newResponse(
ClearIndicesCacheRequest request,
int totalShards,
int successfulShards,
int failedShards,
List responses,
List shardFailures,
ClusterState clusterState
) {
return new ClearIndicesCacheResponse(totalShards, successfulShards, failedShards, shardFailures);
}
@Override
protected ClearIndicesCacheRequest readRequestFrom(StreamInput in) throws IOException {
return new ClearIndicesCacheRequest(in);
}
@Override
protected EmptyResult shardOperation(ClearIndicesCacheRequest request, ShardRouting shardRouting) {
indicesService.clearIndexShardCache(
shardRouting.shardId(),
request.queryCache(),
request.fieldDataCache(),
request.requestCache(),
request.fields()
);
return EmptyResult.INSTANCE;
}
/**
* The refresh request works against *all* shards.
*/
@Override
protected ShardsIterator shards(ClusterState clusterState, ClearIndicesCacheRequest request, String[] concreteIndices) {
return clusterState.routingTable().allShards(concreteIndices);
}
@Override
protected ClusterBlockException checkGlobalBlock(ClusterState state, ClearIndicesCacheRequest request) {
return state.blocks().globalBlockedException(ClusterBlockLevel.METADATA_WRITE);
}
@Override
protected ClusterBlockException checkRequestBlock(ClusterState state, ClearIndicesCacheRequest request, String[] concreteIndices) {
return state.blocks().indicesBlockedException(ClusterBlockLevel.METADATA_WRITE, concreteIndices);
}
}