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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.
*/
/*
* Licensed to Elasticsearch under one or more contributor
* 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.rest.action.admin.indices;
import org.elasticsearch.action.admin.indices.diskusage.AnalyzeIndexDiskUsageAction;
import org.elasticsearch.action.admin.indices.diskusage.AnalyzeIndexDiskUsageRequest;
import org.elasticsearch.action.support.IndicesOptions;
import org.elasticsearch.client.node.NodeClient;
import org.elasticsearch.common.Strings;
import org.elasticsearch.core.Booleans;
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;
import static org.elasticsearch.rest.RestRequest.Method.POST;
public class RestAnalyzeIndexDiskUsageAction extends BaseRestHandler {
@Override
public List routes() {
return Collections.singletonList(new RestHandler.Route(POST, "/{index}/_disk_usage"));
}
@Override
public String getName() {
return "analyze_index_disk_usage_action";
}
@Override
public BaseRestHandler.RestChannelConsumer prepareRequest(final RestRequest request, final NodeClient client) throws IOException {
if (Booleans.parseBoolean(request.param("run_expensive_tasks"), false) == false) {
throw new IllegalArgumentException(
"analyzing the disk usage of an index is expensive and resource-intensive, "
+ "the parameter [run_expensive_tasks] must be set to [true] in order for the task to be performed."
);
}
final String[] indices = Strings.splitStringByCommaToArray(request.param("index"));
final IndicesOptions indicesOptions = IndicesOptions.fromRequest(request, AnalyzeIndexDiskUsageRequest.DEFAULT_INDICES_OPTIONS);
final boolean flush = request.paramAsBoolean("flush", true);
final AnalyzeIndexDiskUsageRequest analyzeRequest = new AnalyzeIndexDiskUsageRequest(indices, indicesOptions, flush);
return channel -> {
final RestCancellableNodeClient cancelClient = new RestCancellableNodeClient(client, request.getHttpChannel());
cancelClient.execute(AnalyzeIndexDiskUsageAction.INSTANCE, analyzeRequest, new RestToXContentListener<>(channel));
};
}
}