/*
* 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.delete;
import org.elasticsearch.ExceptionsHelper;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.TransportActions;
import org.elasticsearch.action.admin.indices.create.CreateIndexRequest;
import org.elasticsearch.action.admin.indices.create.CreateIndexResponse;
import org.elasticsearch.action.admin.indices.create.TransportCreateIndexAction;
import org.elasticsearch.action.delete.index.IndexDeleteRequest;
import org.elasticsearch.action.delete.index.IndexDeleteResponse;
import org.elasticsearch.action.delete.index.ShardDeleteResponse;
import org.elasticsearch.action.delete.index.TransportIndexDeleteAction;
import org.elasticsearch.action.support.replication.TransportShardReplicationOperationAction;
import org.elasticsearch.cluster.ClusterService;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.action.shard.ShardStateAction;
import org.elasticsearch.cluster.block.ClusterBlockLevel;
import org.elasticsearch.cluster.metadata.MappingMetaData;
import org.elasticsearch.cluster.routing.ShardIterator;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.engine.Engine;
import org.elasticsearch.index.shard.service.IndexShard;
import org.elasticsearch.indices.IndexAlreadyExistsException;
import org.elasticsearch.indices.IndicesService;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
/**
* Performs the delete operation.
*
* @author kimchy (shay.banon)
*/
public class TransportDeleteAction extends TransportShardReplicationOperationAction<DeleteRequest, DeleteResponse> {
private final boolean autoCreateIndex;
private final TransportCreateIndexAction createIndexAction;
private final TransportIndexDeleteAction indexDeleteAction;
@Inject public TransportDeleteAction(Settings settings, TransportService transportService, ClusterService clusterService,
IndicesService indicesService, ThreadPool threadPool, ShardStateAction shardStateAction,
TransportCreateIndexAction createIndexAction, TransportIndexDeleteAction indexDeleteAction) {
super(settings, transportService, clusterService, indicesService, threadPool, shardStateAction);
this.createIndexAction = createIndexAction;
this.indexDeleteAction = indexDeleteAction;
this.autoCreateIndex = settings.getAsBoolean("action.auto_create_index", true);
}
@Override protected String executor() {
return ThreadPool.Names.INDEX;
}
@Override protected void doExecute(final DeleteRequest request, final ActionListener<DeleteResponse> listener) {
if (autoCreateIndex && !clusterService.state().metaData().hasConcreteIndex(request.index())) {
request.beforeLocalFork();
createIndexAction.execute(new CreateIndexRequest(request.index()), new ActionListener<CreateIndexResponse>() {
@Override public void onResponse(CreateIndexResponse result) {
innerExecute(request, listener);
}
@Override public void onFailure(Throwable e) {
if (ExceptionsHelper.unwrapCause(e) instanceof IndexAlreadyExistsException) {
// we have the index, do it
innerExecute(request, listener);
} else {
listener.onFailure(e);
}
}
});
} else {
innerExecute(request, listener);
}
}
private void innerExecute(final DeleteRequest request, final ActionListener<DeleteResponse> listener) {
ClusterState clusterState = clusterService.state();
request.routing(clusterState.metaData().resolveIndexRouting(request.routing(), request.index()));
request.index(clusterState.metaData().concreteIndex(request.index())); // we need to get the concrete index here...
if (clusterState.metaData().hasIndex(request.index())) {
// check if routing is required, if so, do a broadcast delete
MappingMetaData mappingMd = clusterState.metaData().index(request.index()).mapping(request.type());
if (mappingMd != null && mappingMd.routing().required()) {
if (request.routing() == null) {
indexDeleteAction.execute(new IndexDeleteRequest(request), new ActionListener<IndexDeleteResponse>() {
@Override public void onResponse(IndexDeleteResponse indexDeleteResponse) {
// go over the response, see if we have found one, and the version if found
long version = 0;
boolean found = false;
for (ShardDeleteResponse deleteResponse : indexDeleteResponse.responses()) {
if (!deleteResponse.notFound()) {
found = true;
version = deleteResponse.version();
break;
}
}
listener.onResponse(new DeleteResponse(request.index(), request.type(), request.id(), version, !found));
}
@Override public void onFailure(Throwable e) {
listener.onFailure(e);
}
});
return;
}
}
}
super.doExecute(request, listener);
}
@Override protected boolean checkWriteConsistency() {
return true;
}
@Override protected DeleteRequest newRequestInstance() {
return new DeleteRequest();
}
@Override protected DeleteResponse newResponseInstance() {
return new DeleteResponse();
}
@Override protected String transportAction() {
return TransportActions.DELETE;
}
@Override protected void checkBlock(DeleteRequest request, ClusterState state) {
state.blocks().indexBlockedRaiseException(ClusterBlockLevel.WRITE, request.index());
}
@Override protected PrimaryResponse<DeleteResponse> shardOperationOnPrimary(ClusterState clusterState, ShardOperationRequest shardRequest) {
DeleteRequest request = shardRequest.request;
IndexShard indexShard = indexShard(shardRequest);
Engine.Delete delete = indexShard.prepareDelete(request.type(), request.id(), request.version())
.versionType(request.versionType())
.origin(Engine.Operation.Origin.PRIMARY);
indexShard.delete(delete);
// update the request with teh version so it will go to the replicas
request.version(delete.version());
if (request.refresh()) {
try {
indexShard.refresh(new Engine.Refresh(false));
} catch (Exception e) {
// ignore
}
}
DeleteResponse response = new DeleteResponse(request.index(), request.type(), request.id(), delete.version(), delete.notFound());
return new PrimaryResponse<DeleteResponse>(response, null);
}
@Override protected void shardOperationOnReplica(ShardOperationRequest shardRequest) {
DeleteRequest request = shardRequest.request;
IndexShard indexShard = indexShard(shardRequest);
Engine.Delete delete = indexShard.prepareDelete(request.type(), request.id(), request.version())
.origin(Engine.Operation.Origin.REPLICA);
indexShard.delete(delete);
if (request.refresh()) {
try {
indexShard.refresh(new Engine.Refresh(false));
} catch (Exception e) {
// ignore
}
}
}
@Override protected ShardIterator shards(ClusterState clusterState, DeleteRequest request) {
return clusterService.operationRouting()
.deleteShards(clusterService.state(), request.index(), request.type(), request.id(), request.routing());
}
}