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* 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.delete;
import java.io.IOException;
import org.apache.cassandra.exceptions.RequestExecutionException;
import org.apache.cassandra.exceptions.RequestValidationException;
import org.elasticsearch.ExceptionsHelper;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.RoutingMissingException;
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.support.ActionFilters;
import org.elasticsearch.action.support.AutoCreateIndex;
import org.elasticsearch.action.support.replication.TransportReplicationAction;
import org.elasticsearch.cluster.ClusterService;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.action.index.MappingUpdatedAction;
import org.elasticsearch.cluster.metadata.IndexNameExpressionResolver;
import org.elasticsearch.cluster.metadata.MappingMetaData;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.common.collect.Tuple;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.VersionType;
import org.elasticsearch.index.engine.Engine;
import org.elasticsearch.index.shard.IndexShard;
import org.elasticsearch.indices.IndexAlreadyExistsException;
import org.elasticsearch.indices.IndicesService;
import org.elasticsearch.tasks.Task;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
/**
* Performs the delete operation.
*/
public class TransportDeleteAction extends TransportReplicationAction<DeleteRequest, DeleteRequest, DeleteResponse> {
private final AutoCreateIndex autoCreateIndex;
private final TransportCreateIndexAction createIndexAction;
private final ClusterService clusterService;
@Inject
public TransportDeleteAction(Settings settings, TransportService transportService, ClusterService clusterService,
IndicesService indicesService, ThreadPool threadPool,
TransportCreateIndexAction createIndexAction, ActionFilters actionFilters,
IndexNameExpressionResolver indexNameExpressionResolver, MappingUpdatedAction mappingUpdatedAction,
AutoCreateIndex autoCreateIndex) {
super(settings, DeleteAction.NAME, transportService, clusterService, indicesService, threadPool,
mappingUpdatedAction, actionFilters, indexNameExpressionResolver,
DeleteRequest.class, DeleteRequest.class, ThreadPool.Names.INDEX);
this.createIndexAction = createIndexAction;
this.autoCreateIndex = autoCreateIndex;
this.clusterService = clusterService;
}
@Override
protected void doExecute(final Task task, final DeleteRequest request, final ActionListener<DeleteResponse> listener) {
ClusterState state = clusterService.state();
if (autoCreateIndex.shouldAutoCreate(request.index(), state)) {
createIndexAction.execute(task, new CreateIndexRequest(request).index(request.index()).cause("auto(delete api)")
.masterNodeTimeout(request.timeout()), new ActionListener<CreateIndexResponse>() {
@Override
public void onResponse(CreateIndexResponse result) {
innerExecute(task, request, listener);
}
@Override
public void onFailure(Throwable e) {
if (ExceptionsHelper.unwrapCause(e) instanceof IndexAlreadyExistsException) {
// we have the index, do it
innerExecute(task, request, listener);
} else {
listener.onFailure(e);
}
}
});
} else {
innerExecute(task, request, listener);
}
}
@Override
protected void resolveRequest(final MetaData metaData, String concreteIndex, DeleteRequest request) {
/*
resolveAndValidateRouting(metaData, concreteIndex, request);
ShardId shardId = clusterService.operationRouting().shardId(clusterService.state(), concreteIndex, request.type(),
request.id(), request.routing());
request.setShardId(shardId);
*/
}
public static void resolveAndValidateRouting(final MetaData metaData, String concreteIndex, DeleteRequest request) {
request.routing(metaData.resolveIndexRouting(request.routing(), request.index()));
if (metaData.hasIndex(concreteIndex)) {
// check if routing is required, if so, throw error if routing wasn't specified
MappingMetaData mappingMd = metaData.index(concreteIndex).mappingOrDefault(request.type());
if (mappingMd != null && mappingMd.routing().required()) {
if (request.routing() == null) {
if (request.versionType() != VersionType.INTERNAL) {
// TODO: implement this feature
throw new IllegalArgumentException("routing value is required for deleting documents of type [" + request.type()
+ "] while using version_type [" + request.versionType() + "]");
}
throw new RoutingMissingException(concreteIndex, request.type(), request.id());
}
}
}
}
protected void innerExecute(Task task, final DeleteRequest request, final ActionListener<DeleteResponse> listener) {
try {
clusterService.deleteRow(request.index(), request.type(), request.id(), request.consistencyLevel().toCassandraConsistencyLevel());
DeleteResponse response = new DeleteResponse(request.index(), request.type(), request.id(), 0L, true);
response.setShardInfo(clusterService.shardInfo(request.index(), request.consistencyLevel().toCassandraConsistencyLevel()));
listener.onResponse(response);
} catch (Exception e) {
listener.onFailure(e);
}
}
@Override
protected DeleteResponse newResponseInstance() {
return new DeleteResponse();
}
@Override
protected Tuple<DeleteResponse, DeleteRequest> shardOperationOnPrimary(MetaData metaData, DeleteRequest request) {
IndexShard indexShard = indicesService.indexServiceSafe(request.shardId().getIndex()).shardSafe(request.shardId().id());
final WriteResult<DeleteResponse> result = executeDeleteRequestOnPrimary(clusterService, request, indexShard);
processAfterWrite(request.refresh(), indexShard, result.location);
return new Tuple<>(result.response, request);
}
public static WriteResult<DeleteResponse> executeDeleteRequestOnPrimary(ClusterService clusterService, DeleteRequest request, IndexShard indexShard) {
try {
clusterService.deleteRow(request.index(), request.type(), request.id(), request.consistencyLevel().toCassandraConsistencyLevel());
DeleteResponse response = new DeleteResponse(request.index(), request.type(), request.id(), 1L, true);
response.setShardInfo(clusterService.shardInfo(request.index(), request.consistencyLevel().toCassandraConsistencyLevel()));
return new WriteResult<>(response, null);
} catch (RequestExecutionException | RequestValidationException | IOException e) {
throw new RuntimeException(e);
}
}
@Override
protected void shardOperationOnReplica(DeleteRequest request) {
}
}