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/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.action.termvectors;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.RoutingMissingException;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.HandledTransportAction;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.block.ClusterBlockLevel;
import org.elasticsearch.cluster.metadata.IndexNameExpressionResolver;
import org.elasticsearch.cluster.service.ClusterService;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.util.concurrent.AtomicArray;
import org.elasticsearch.index.shard.ShardId;
import org.elasticsearch.tasks.Task;
import org.elasticsearch.transport.TransportService;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.atomic.AtomicInteger;
public class TransportMultiTermVectorsAction extends HandledTransportAction {
private final ClusterService clusterService;
private final TransportShardMultiTermsVectorAction shardAction;
private final IndexNameExpressionResolver indexNameExpressionResolver;
@Inject
public TransportMultiTermVectorsAction(
TransportService transportService,
ClusterService clusterService,
TransportShardMultiTermsVectorAction shardAction,
ActionFilters actionFilters,
IndexNameExpressionResolver indexNameExpressionResolver
) {
super(MultiTermVectorsAction.NAME, transportService, actionFilters, MultiTermVectorsRequest::new);
this.clusterService = clusterService;
this.shardAction = shardAction;
this.indexNameExpressionResolver = indexNameExpressionResolver;
}
@Override
protected void doExecute(Task task, final MultiTermVectorsRequest request, final ActionListener listener) {
ClusterState clusterState = clusterService.state();
clusterState.blocks().globalBlockedRaiseException(ClusterBlockLevel.READ);
final AtomicArray responses = new AtomicArray<>(request.requests.size());
Map shardRequests = new HashMap<>();
for (int i = 0; i < request.requests.size(); i++) {
TermVectorsRequest termVectorsRequest = request.requests.get(i);
String concreteSingleIndex;
try {
termVectorsRequest.routing(
clusterState.metadata().resolveIndexRouting(termVectorsRequest.routing(), termVectorsRequest.index())
);
concreteSingleIndex = indexNameExpressionResolver.concreteSingleIndex(clusterState, termVectorsRequest).getName();
if (termVectorsRequest.routing() == null && clusterState.getMetadata().routingRequired(concreteSingleIndex)) {
responses.set(
i,
new MultiTermVectorsItemResponse(
null,
new MultiTermVectorsResponse.Failure(
concreteSingleIndex,
termVectorsRequest.type(),
termVectorsRequest.id(),
new RoutingMissingException(concreteSingleIndex, termVectorsRequest.type(), termVectorsRequest.id())
)
)
);
continue;
}
} catch (Exception e) {
responses.set(
i,
new MultiTermVectorsItemResponse(
null,
new MultiTermVectorsResponse.Failure(
termVectorsRequest.index(),
termVectorsRequest.type(),
termVectorsRequest.id(),
e
)
)
);
continue;
}
ShardId shardId = clusterService.operationRouting()
.shardId(clusterState, concreteSingleIndex, termVectorsRequest.id(), termVectorsRequest.routing());
MultiTermVectorsShardRequest shardRequest = shardRequests.get(shardId);
if (shardRequest == null) {
shardRequest = new MultiTermVectorsShardRequest(shardId.getIndexName(), shardId.id());
shardRequest.preference(request.preference);
shardRequests.put(shardId, shardRequest);
}
shardRequest.add(i, termVectorsRequest);
}
if (shardRequests.size() == 0) {
// only failures..
listener.onResponse(new MultiTermVectorsResponse(responses.toArray(new MultiTermVectorsItemResponse[responses.length()])));
}
executeShardAction(listener, responses, shardRequests);
}
protected void executeShardAction(
ActionListener listener,
AtomicArray responses,
Map shardRequests
) {
final AtomicInteger counter = new AtomicInteger(shardRequests.size());
for (final MultiTermVectorsShardRequest shardRequest : shardRequests.values()) {
shardAction.execute(shardRequest, new ActionListener() {
@Override
public void onResponse(MultiTermVectorsShardResponse response) {
for (int i = 0; i < response.locations.size(); i++) {
responses.set(
response.locations.get(i),
new MultiTermVectorsItemResponse(response.responses.get(i), response.failures.get(i))
);
}
if (counter.decrementAndGet() == 0) {
finishHim();
}
}
@Override
public void onFailure(Exception e) {
// create failures for all relevant requests
for (int i = 0; i < shardRequest.locations.size(); i++) {
TermVectorsRequest termVectorsRequest = shardRequest.requests.get(i);
responses.set(
shardRequest.locations.get(i),
new MultiTermVectorsItemResponse(
null,
new MultiTermVectorsResponse.Failure(
shardRequest.index(),
termVectorsRequest.type(),
termVectorsRequest.id(),
e
)
)
);
}
if (counter.decrementAndGet() == 0) {
finishHim();
}
}
private void finishHim() {
listener.onResponse(
new MultiTermVectorsResponse(responses.toArray(new MultiTermVectorsItemResponse[responses.length()]))
);
}
});
}
}
}