/*
* 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.delete;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.DestructiveOperations;
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.MetaDataDeleteIndexService;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.util.concurrent.CountDown;
import org.elasticsearch.node.settings.NodeSettingsService;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
/**
* Delete index action.
*/
public class TransportDeleteIndexAction extends TransportMasterNodeOperationAction<DeleteIndexRequest, DeleteIndexResponse> {
private final MetaDataDeleteIndexService deleteIndexService;
private final DestructiveOperations destructiveOperations;
@Inject
public TransportDeleteIndexAction(Settings settings, TransportService transportService, ClusterService clusterService,
ThreadPool threadPool, MetaDataDeleteIndexService deleteIndexService,
NodeSettingsService nodeSettingsService, ActionFilters actionFilters) {
super(settings, DeleteIndexAction.NAME, transportService, clusterService, threadPool, actionFilters);
this.deleteIndexService = deleteIndexService;
this.destructiveOperations = new DestructiveOperations(logger, settings, nodeSettingsService);
}
@Override
protected String executor() {
return ThreadPool.Names.SAME;
}
@Override
protected DeleteIndexRequest newRequest() {
return new DeleteIndexRequest();
}
@Override
protected DeleteIndexResponse newResponse() {
return new DeleteIndexResponse();
}
@Override
protected void doExecute(DeleteIndexRequest request, ActionListener<DeleteIndexResponse> listener) {
destructiveOperations.failDestructive(request.indices());
super.doExecute(request, listener);
}
@Override
protected ClusterBlockException checkBlock(DeleteIndexRequest request, ClusterState state) {
return state.blocks().indicesBlockedException(ClusterBlockLevel.METADATA, state.metaData().concreteIndices(request.indicesOptions(), request.indices()));
}
@Override
protected void masterOperation(final DeleteIndexRequest request, final ClusterState state, final ActionListener<DeleteIndexResponse> listener) throws ElasticsearchException {
String[] concreteIndices = state.metaData().concreteIndices(request.indicesOptions(), request.indices());
if (concreteIndices.length == 0) {
listener.onResponse(new DeleteIndexResponse(true));
return;
}
// TODO: this API should be improved, currently, if one delete index failed, we send a failure, we should send a response array that includes all the indices that were deleted
final CountDown count = new CountDown(concreteIndices.length);
for (final String index : concreteIndices) {
deleteIndexService.deleteIndex(new MetaDataDeleteIndexService.Request(index).timeout(request.timeout()).masterTimeout(request.masterNodeTimeout()), new MetaDataDeleteIndexService.Listener() {
private volatile Throwable lastFailure;
private volatile boolean ack = true;
@Override
public void onResponse(MetaDataDeleteIndexService.Response response) {
if (!response.acknowledged()) {
ack = false;
}
if (count.countDown()) {
if (lastFailure != null) {
listener.onFailure(lastFailure);
} else {
listener.onResponse(new DeleteIndexResponse(ack));
}
}
}
@Override
public void onFailure(Throwable t) {
logger.debug("[{}] failed to delete index", t, index);
lastFailure = t;
if (count.countDown()) {
listener.onFailure(t);
}
}
});
}
}
}