org.elasticsearch.action.admin.indices.mapping.get.TransportGetMappingsAction Maven / Gradle / Ivy
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Elasticsearch subproject :server
/*
* 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.admin.indices.mapping.get;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.master.info.TransportClusterInfoAction;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.metadata.IndexNameExpressionResolver;
import org.elasticsearch.cluster.metadata.MappingMetadata;
import org.elasticsearch.cluster.metadata.Metadata;
import org.elasticsearch.cluster.service.ClusterService;
import org.elasticsearch.common.collect.ImmutableOpenMap;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.indices.IndicesService;
import org.elasticsearch.tasks.CancellableTask;
import org.elasticsearch.tasks.Task;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
public class TransportGetMappingsAction extends TransportClusterInfoAction {
private static final Logger logger = LogManager.getLogger(TransportGetMappingsAction.class);
private final IndicesService indicesService;
@Inject
public TransportGetMappingsAction(
TransportService transportService,
ClusterService clusterService,
ThreadPool threadPool,
ActionFilters actionFilters,
IndexNameExpressionResolver indexNameExpressionResolver,
IndicesService indicesService
) {
super(
GetMappingsAction.NAME,
transportService,
clusterService,
threadPool,
actionFilters,
GetMappingsRequest::new,
indexNameExpressionResolver,
GetMappingsResponse::new
);
this.indicesService = indicesService;
}
@Override
protected void doMasterOperation(
Task task,
final GetMappingsRequest request,
String[] concreteIndices,
final ClusterState state,
final ActionListener listener
) {
logger.trace("serving getMapping request based on version {}", state.version());
final Metadata metadata = state.metadata();
final ImmutableOpenMap mappings = metadata.findMappings(
concreteIndices,
indicesService.getFieldFilter(),
() -> checkCancellation(task)
);
listener.onResponse(new GetMappingsResponse(mappings));
}
private static void checkCancellation(Task task) {
if (task instanceof CancellableTask cancellableTask) {
cancellableTask.ensureNotCancelled();
}
}
}