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* Licensed to Elasticsearch under one or more contributor
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* 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
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package org.elasticsearch.rest.action.admin.cluster.reroute;
import org.elasticsearch.action.admin.cluster.reroute.ClusterRerouteRequest;
import org.elasticsearch.action.admin.cluster.reroute.ClusterRerouteResponse;
import org.elasticsearch.client.Client;
import org.elasticsearch.client.Requests;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.settings.SettingsFilter;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.rest.*;
import org.elasticsearch.rest.action.support.AcknowledgedRestListener;
import java.io.IOException;
import java.util.EnumSet;
/**
*/
public class RestClusterRerouteAction extends BaseRestHandler {
private final SettingsFilter settingsFilter;
private static String DEFAULT_METRICS = Strings.arrayToCommaDelimitedString(EnumSet.complementOf(EnumSet.of(ClusterState.Metric.METADATA)).toArray());
@Inject
public RestClusterRerouteAction(Settings settings, RestController controller, Client client, SettingsFilter settingsFilter) {
super(settings, controller, client);
this.settingsFilter = settingsFilter;
controller.registerHandler(RestRequest.Method.POST, "/_cluster/reroute", this);
}
@Override
public void handleRequest(final RestRequest request, final RestChannel channel, final Client client) throws Exception {
final ClusterRerouteRequest clusterRerouteRequest = Requests.clusterRerouteRequest();
clusterRerouteRequest.listenerThreaded(false);
clusterRerouteRequest.dryRun(request.paramAsBoolean("dry_run", clusterRerouteRequest.dryRun()));
clusterRerouteRequest.explain(request.paramAsBoolean("explain", clusterRerouteRequest.explain()));
clusterRerouteRequest.timeout(request.paramAsTime("timeout", clusterRerouteRequest.timeout()));
clusterRerouteRequest.masterNodeTimeout(request.paramAsTime("master_timeout", clusterRerouteRequest.masterNodeTimeout()));
if (request.hasContent()) {
clusterRerouteRequest.source(request.content());
}
client.admin().cluster().reroute(clusterRerouteRequest, new AcknowledgedRestListener<ClusterRerouteResponse>(channel) {
@Override
protected void addCustomFields(XContentBuilder builder, ClusterRerouteResponse response) throws IOException {
builder.startObject("state");
// by default, return everything but metadata
if (request.param("metric") == null) {
request.params().put("metric", DEFAULT_METRICS);
}
response.getState().settingsFilter(settingsFilter).toXContent(builder, request);
builder.endObject();
if (clusterRerouteRequest.explain()) {
assert response.getExplanations() != null;
response.getExplanations().toXContent(builder, ToXContent.EMPTY_PARAMS);
}
}
});
}
}