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* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
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package org.elasticsearch.action.bulk;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.DocWriteRequest;
import org.elasticsearch.action.DocWriteResponse;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.WriteRequest;
import org.elasticsearch.action.support.WriteResponse;
import org.elasticsearch.action.support.replication.ReplicatedWriteRequest;
import org.elasticsearch.action.support.replication.ReplicationResponse;
import org.elasticsearch.action.support.replication.TransportWriteAction;
import org.elasticsearch.cluster.action.shard.ShardStateAction;
import org.elasticsearch.cluster.metadata.IndexNameExpressionResolver;
import org.elasticsearch.cluster.service.ClusterService;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.shard.IndexShard;
import org.elasticsearch.indices.IndicesService;
import org.elasticsearch.tasks.Task;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.util.function.Supplier;
/** use transport bulk action directly */
@Deprecated
public abstract class TransportSingleItemBulkWriteAction<
Request extends ReplicatedWriteRequest<Request>,
Response extends ReplicationResponse & WriteResponse
> extends TransportWriteAction<Request, Request, Response> {
private final TransportBulkAction bulkAction;
private final TransportShardBulkAction shardBulkAction;
protected TransportSingleItemBulkWriteAction(Settings settings, String actionName, TransportService transportService,
ClusterService clusterService, IndicesService indicesService, ThreadPool threadPool,
ShardStateAction shardStateAction, ActionFilters actionFilters,
IndexNameExpressionResolver indexNameExpressionResolver, Supplier<Request> request,
Supplier<Request> replicaRequest, String executor,
TransportBulkAction bulkAction, TransportShardBulkAction shardBulkAction) {
super(settings, actionName, transportService, clusterService, indicesService, threadPool, shardStateAction, actionFilters,
indexNameExpressionResolver, request, replicaRequest, executor);
this.bulkAction = bulkAction;
this.shardBulkAction = shardBulkAction;
}
@Override
protected void doExecute(Task task, final Request request, final ActionListener<Response> listener) {
bulkAction.execute(task, toSingleItemBulkRequest(request), wrapBulkResponse(listener));
}
@Override
protected WritePrimaryResult<Request, Response> shardOperationOnPrimary(
Request request, final IndexShard primary) throws Exception {
BulkItemRequest[] itemRequests = new BulkItemRequest[1];
WriteRequest.RefreshPolicy refreshPolicy = request.getRefreshPolicy();
request.setRefreshPolicy(WriteRequest.RefreshPolicy.NONE);
itemRequests[0] = new BulkItemRequest(0, ((DocWriteRequest) request));
BulkShardRequest bulkShardRequest = new BulkShardRequest(request.shardId(), refreshPolicy, itemRequests);
WritePrimaryResult<BulkShardRequest, BulkShardResponse> bulkResult =
shardBulkAction.shardOperationOnPrimary(bulkShardRequest, primary);
assert bulkResult.finalResponseIfSuccessful.getResponses().length == 1 : "expected only one bulk shard response";
BulkItemResponse itemResponse = bulkResult.finalResponseIfSuccessful.getResponses()[0];
final Response response;
final Exception failure;
if (itemResponse.isFailed()) {
failure = itemResponse.getFailure().getCause();
response = null;
} else {
response = (Response) itemResponse.getResponse();
failure = null;
}
return new WritePrimaryResult<>(request, response, bulkResult.location, failure, primary, logger);
}
@Override
protected WriteReplicaResult<Request> shardOperationOnReplica(
Request replicaRequest, IndexShard replica) throws Exception {
BulkItemRequest[] itemRequests = new BulkItemRequest[1];
WriteRequest.RefreshPolicy refreshPolicy = replicaRequest.getRefreshPolicy();
itemRequests[0] = new BulkItemRequest(0, ((DocWriteRequest) replicaRequest));
BulkShardRequest bulkShardRequest = new BulkShardRequest(replicaRequest.shardId(), refreshPolicy, itemRequests);
WriteReplicaResult<BulkShardRequest> result = shardBulkAction.shardOperationOnReplica(bulkShardRequest, replica);
// a replica operation can never throw a document-level failure,
// as the same document has been already indexed successfully in the primary
return new WriteReplicaResult<>(replicaRequest, result.location, null, replica, logger);
}
public static <Response extends ReplicationResponse & WriteResponse>
ActionListener<BulkResponse> wrapBulkResponse(ActionListener<Response> listener) {
return ActionListener.wrap(bulkItemResponses -> {
assert bulkItemResponses.getItems().length == 1 : "expected only one item in bulk request";
BulkItemResponse bulkItemResponse = bulkItemResponses.getItems()[0];
if (bulkItemResponse.isFailed() == false) {
final DocWriteResponse response = bulkItemResponse.getResponse();
listener.onResponse((Response) response);
} else {
listener.onFailure(bulkItemResponse.getFailure().getCause());
}
}, listener::onFailure);
}
public static BulkRequest toSingleItemBulkRequest(ReplicatedWriteRequest request) {
BulkRequest bulkRequest = new BulkRequest();
bulkRequest.add(((DocWriteRequest) request));
bulkRequest.setRefreshPolicy(request.getRefreshPolicy());
bulkRequest.timeout(request.timeout());
bulkRequest.waitForActiveShards(request.waitForActiveShards());
request.setRefreshPolicy(WriteRequest.RefreshPolicy.NONE);
return bulkRequest;
}
}