org.elasticsearch.rest.action.admin.indices.RestForceMergeAction Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of elasticsearch Show documentation
Show all versions of elasticsearch Show documentation
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.rest.action.admin.indices;
import org.elasticsearch.action.ActionRequestValidationException;
import org.elasticsearch.action.admin.indices.forcemerge.ForceMergeAction;
import org.elasticsearch.action.admin.indices.forcemerge.ForceMergeRequest;
import org.elasticsearch.action.admin.indices.forcemerge.ForceMergeResponse;
import org.elasticsearch.action.support.IndicesOptions;
import org.elasticsearch.action.support.ListenableActionFuture;
import org.elasticsearch.client.internal.node.NodeClient;
import org.elasticsearch.common.Strings;
import org.elasticsearch.rest.BaseRestHandler;
import org.elasticsearch.rest.RestRequest;
import org.elasticsearch.rest.RestResponse;
import org.elasticsearch.rest.RestStatus;
import org.elasticsearch.rest.action.RestToXContentListener;
import org.elasticsearch.tasks.LoggingTaskListener;
import org.elasticsearch.tasks.Task;
import org.elasticsearch.xcontent.XContentBuilder;
import java.io.IOException;
import java.util.List;
import static org.elasticsearch.rest.RestRequest.Method.POST;
public class RestForceMergeAction extends BaseRestHandler {
@Override
public List routes() {
return List.of(new Route(POST, "/_forcemerge"), new Route(POST, "/{index}/_forcemerge"));
}
@Override
public String getName() {
return "force_merge_action";
}
@Override
public RestChannelConsumer prepareRequest(final RestRequest request, final NodeClient client) throws IOException {
final ForceMergeRequest mergeRequest = new ForceMergeRequest(Strings.splitStringByCommaToArray(request.param("index")));
mergeRequest.indicesOptions(IndicesOptions.fromRequest(request, mergeRequest.indicesOptions()));
mergeRequest.maxNumSegments(request.paramAsInt("max_num_segments", mergeRequest.maxNumSegments()));
mergeRequest.onlyExpungeDeletes(request.paramAsBoolean("only_expunge_deletes", mergeRequest.onlyExpungeDeletes()));
mergeRequest.flush(request.paramAsBoolean("flush", mergeRequest.flush()));
if (request.paramAsBoolean("wait_for_completion", true)) {
return channel -> client.admin().indices().forceMerge(mergeRequest, new RestToXContentListener<>(channel));
} else {
mergeRequest.setShouldStoreResult(true);
/*
* Let's try and validate before forking so the user gets some error. The
* task can't totally validate until it starts but this is better than
* nothing.
*/
ActionRequestValidationException validationException = mergeRequest.validate();
if (validationException != null) {
throw validationException;
}
final var responseFuture = new ListenableActionFuture();
final var task = client.executeLocally(ForceMergeAction.INSTANCE, mergeRequest, responseFuture);
responseFuture.addListener(new LoggingTaskListener<>(task));
return sendTask(client.getLocalNodeId(), task);
}
}
private static RestChannelConsumer sendTask(String localNodeId, Task task) {
return channel -> {
try (XContentBuilder builder = channel.newBuilder()) {
builder.startObject();
builder.field("task", localNodeId + ":" + task.getId());
builder.endObject();
channel.sendResponse(new RestResponse(RestStatus.OK, builder));
}
};
}
}