/*
* 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.alias;
import org.elasticsearch.ElasticSearchException;
import org.elasticsearch.action.TransportActions;
import org.elasticsearch.action.support.master.TransportMasterNodeOperationAction;
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.metadata.AliasAction;
import org.elasticsearch.cluster.metadata.MetaDataIndexAliasesService;
import org.elasticsearch.common.collect.Sets;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.util.Set;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicReference;
/**
* @author kimchy (shay.banon)
*/
public class TransportIndicesAliasesAction extends TransportMasterNodeOperationAction<IndicesAliasesRequest, IndicesAliasesResponse> {
private final MetaDataIndexAliasesService indexAliasesService;
@Inject public TransportIndicesAliasesAction(Settings settings, TransportService transportService, ClusterService clusterService,
ThreadPool threadPool, MetaDataIndexAliasesService indexAliasesService) {
super(settings, transportService, clusterService, threadPool);
this.indexAliasesService = indexAliasesService;
}
@Override protected String executor() {
return ThreadPool.Names.MANAGEMENT;
}
@Override protected String transportAction() {
return TransportActions.Admin.Indices.ALIASES;
}
@Override protected IndicesAliasesRequest newRequest() {
return new IndicesAliasesRequest();
}
@Override protected IndicesAliasesResponse newResponse() {
return new IndicesAliasesResponse();
}
@Override protected ClusterBlockException checkBlock(IndicesAliasesRequest request, ClusterState state) {
Set<String> indices = Sets.newHashSet();
for (AliasAction aliasAction : request.aliasActions()) {
indices.add(aliasAction.index());
}
return state.blocks().indicesBlockedException(ClusterBlockLevel.METADATA, indices.toArray(new String[indices.size()]));
}
@Override protected IndicesAliasesResponse masterOperation(IndicesAliasesRequest request, ClusterState state) throws ElasticSearchException {
final AtomicReference<IndicesAliasesResponse> responseRef = new AtomicReference<IndicesAliasesResponse>();
final AtomicReference<Throwable> failureRef = new AtomicReference<Throwable>();
final CountDownLatch latch = new CountDownLatch(1);
indexAliasesService.indicesAliases(new MetaDataIndexAliasesService.Request(request.aliasActions().toArray(new AliasAction[request.aliasActions().size()]), request.timeout()), new MetaDataIndexAliasesService.Listener() {
@Override public void onResponse(MetaDataIndexAliasesService.Response response) {
responseRef.set(new IndicesAliasesResponse(response.acknowledged()));
latch.countDown();
}
@Override public void onFailure(Throwable t) {
failureRef.set(t);
latch.countDown();
}
});
try {
latch.await();
} catch (InterruptedException e) {
failureRef.set(e);
}
if (failureRef.get() != null) {
if (failureRef.get() instanceof ElasticSearchException) {
throw (ElasticSearchException) failureRef.get();
} else {
throw new ElasticSearchException(failureRef.get().getMessage(), failureRef.get());
}
}
return responseRef.get();
}
}