org.elasticsearch.rest.action.admin.indices.RestFieldUsageStatsAction Maven / Gradle / Ivy
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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.rest.action.admin.indices;
import org.elasticsearch.action.admin.indices.stats.FieldUsageStatsAction;
import org.elasticsearch.action.admin.indices.stats.FieldUsageStatsRequest;
import org.elasticsearch.action.support.IndicesOptions;
import org.elasticsearch.client.node.NodeClient;
import org.elasticsearch.common.Strings;
import org.elasticsearch.rest.BaseRestHandler;
import org.elasticsearch.rest.RestHandler;
import org.elasticsearch.rest.RestRequest;
import org.elasticsearch.rest.action.RestCancellableNodeClient;
import org.elasticsearch.rest.action.RestToXContentListener;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
public class RestFieldUsageStatsAction extends BaseRestHandler {
@Override
public List routes() {
return Collections.singletonList(new RestHandler.Route(RestRequest.Method.GET, "/{index}/_field_usage_stats"));
}
@Override
public String getName() {
return "field_usage_stats_action";
}
@Override
public BaseRestHandler.RestChannelConsumer prepareRequest(final RestRequest request, final NodeClient client) throws IOException {
final String[] indices = Strings.splitStringByCommaToArray(request.param("index"));
final IndicesOptions indicesOptions = IndicesOptions.fromRequest(request, IndicesOptions.strictExpandOpenAndForbidClosed());
final FieldUsageStatsRequest fusRequest = new FieldUsageStatsRequest(indices, indicesOptions);
fusRequest.fields(request.paramAsStringArray("fields", fusRequest.fields()));
return channel -> {
final RestCancellableNodeClient cancelClient = new RestCancellableNodeClient(client, request.getHttpChannel());
cancelClient.execute(FieldUsageStatsAction.INSTANCE, fusRequest, new RestToXContentListener<>(channel));
};
}
}