/*
* 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.delete;
import org.elasticsearch.ElasticSearchException;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.TransportActions;
import org.elasticsearch.action.admin.indices.mapping.delete.DeleteMappingRequest;
import org.elasticsearch.action.admin.indices.mapping.delete.DeleteMappingResponse;
import org.elasticsearch.action.admin.indices.mapping.delete.TransportDeleteMappingAction;
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.IndexMetaData;
import org.elasticsearch.cluster.metadata.MetaDataDeleteIndexService;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.percolator.PercolatorService;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicReference;
/**
* Delete index action.
*
* @author kimchy (shay.banon)
*/
public class TransportDeleteIndexAction extends TransportMasterNodeOperationAction<DeleteIndexRequest, DeleteIndexResponse> {
private final MetaDataDeleteIndexService deleteIndexService;
private final TransportDeleteMappingAction deleteMappingAction;
@Inject public TransportDeleteIndexAction(Settings settings, TransportService transportService, ClusterService clusterService,
ThreadPool threadPool, MetaDataDeleteIndexService deleteIndexService, TransportDeleteMappingAction deleteMappingAction) {
super(settings, transportService, clusterService, threadPool);
this.deleteIndexService = deleteIndexService;
this.deleteMappingAction = deleteMappingAction;
}
@Override protected String executor() {
return ThreadPool.Names.MANAGEMENT;
}
@Override protected String transportAction() {
return TransportActions.Admin.Indices.DELETE;
}
@Override protected DeleteIndexRequest newRequest() {
return new DeleteIndexRequest();
}
@Override protected DeleteIndexResponse newResponse() {
return new DeleteIndexResponse();
}
@Override protected void doExecute(DeleteIndexRequest request, ActionListener<DeleteIndexResponse> listener) {
request.indices(clusterService.state().metaData().concreteIndices(request.indices()));
super.doExecute(request, listener);
}
@Override protected ClusterBlockException checkBlock(DeleteIndexRequest request, ClusterState state) {
return state.blocks().indicesBlockedException(ClusterBlockLevel.METADATA, request.indices());
}
@Override protected DeleteIndexResponse masterOperation(DeleteIndexRequest request, final ClusterState state) throws ElasticSearchException {
if (request.indices().length == 0) {
return new DeleteIndexResponse(true);
}
final AtomicReference<DeleteIndexResponse> responseRef = new AtomicReference<DeleteIndexResponse>();
final AtomicReference<Throwable> failureRef = new AtomicReference<Throwable>();
final CountDownLatch latch = new CountDownLatch(request.indices().length);
for (final String index : request.indices()) {
deleteIndexService.deleteIndex(new MetaDataDeleteIndexService.Request(index).timeout(request.timeout()), new MetaDataDeleteIndexService.Listener() {
@Override public void onResponse(MetaDataDeleteIndexService.Response response) {
responseRef.set(new DeleteIndexResponse(response.acknowledged()));
// YACK, but here we go: If this index is also percolated, make sure to delete all percolated queries from the _percolator index
IndexMetaData percolatorMetaData = state.metaData().index(PercolatorService.INDEX_NAME);
if (percolatorMetaData != null && percolatorMetaData.mappings().containsKey(index)) {
deleteMappingAction.execute(new DeleteMappingRequest(PercolatorService.INDEX_NAME).type(index), new ActionListener<DeleteMappingResponse>() {
@Override public void onResponse(DeleteMappingResponse deleteMappingResponse) {
latch.countDown();
}
@Override public void onFailure(Throwable e) {
latch.countDown();
}
});
} else {
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();
}
}