org.elasticsearch.action.admin.indices.warmer.get.TransportGetWarmersAction Maven / Gradle / Ivy
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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.warmer.get;
import com.google.common.collect.ImmutableList;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.master.info.TransportClusterInfoAction;
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.common.collect.ImmutableOpenMap;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.search.warmer.IndexWarmersMetaData;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
/**
* Internal Actions executed on the master fetching the warmer from the cluster state metadata.
*
* Note: this is an internal API and should not be used / called by any client code.
*/
public class TransportGetWarmersAction extends TransportClusterInfoAction {
@Inject
public TransportGetWarmersAction(Settings settings, TransportService transportService, ClusterService clusterService, ThreadPool threadPool, ActionFilters actionFilters) {
super(settings, GetWarmersAction.NAME, transportService, clusterService, threadPool, actionFilters);
}
@Override
protected String executor() {
// very lightweight operation, no need to fork
return ThreadPool.Names.SAME;
}
@Override
protected ClusterBlockException checkBlock(GetWarmersRequest request, ClusterState state) {
return state.blocks().indicesBlockedException(ClusterBlockLevel.METADATA_READ, state.metaData().concreteIndices(request.indicesOptions(), request.indices()));
}
@Override
protected GetWarmersRequest newRequest() {
return new GetWarmersRequest();
}
@Override
protected GetWarmersResponse newResponse() {
return new GetWarmersResponse();
}
@Override
protected void doMasterOperation(final GetWarmersRequest request, String[] concreteIndices, final ClusterState state, final ActionListener listener) throws ElasticsearchException {
ImmutableOpenMap> result = state.metaData().findWarmers(
concreteIndices, request.types(), request.warmers()
);
listener.onResponse(new GetWarmersResponse(result));
}
}