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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
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package org.elasticsearch.rest.action.cat;
import org.elasticsearch.action.admin.cluster.tasks.PendingClusterTasksRequest;
import org.elasticsearch.action.admin.cluster.tasks.PendingClusterTasksResponse;
import org.elasticsearch.client.Client;
import org.elasticsearch.cluster.service.PendingClusterTask;
import org.elasticsearch.common.Table;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.rest.*;
import org.elasticsearch.rest.action.support.RestResponseListener;
import org.elasticsearch.rest.action.support.RestTable;
import static org.elasticsearch.rest.RestRequest.Method.GET;
public class RestPendingClusterTasksAction extends AbstractCatAction {
@Inject
public RestPendingClusterTasksAction(Settings settings, RestController controller, Client client) {
super(settings, controller, client);
controller.registerHandler(GET, "/_cat/pending_tasks", this);
}
@Override
void documentation(StringBuilder sb) {
sb.append("/_cat/pending_tasks\n");
}
@Override
public void doRequest(final RestRequest request, final RestChannel channel, final Client client) {
PendingClusterTasksRequest pendingClusterTasksRequest = new PendingClusterTasksRequest();
pendingClusterTasksRequest.masterNodeTimeout(request.paramAsTime("master_timeout", pendingClusterTasksRequest.masterNodeTimeout()));
pendingClusterTasksRequest.local(request.paramAsBoolean("local", pendingClusterTasksRequest.local()));
client.admin().cluster().pendingClusterTasks(pendingClusterTasksRequest, new RestResponseListener<PendingClusterTasksResponse>(channel) {
@Override
public RestResponse buildResponse(PendingClusterTasksResponse pendingClusterTasks) throws Exception {
Table tab = buildTable(request, pendingClusterTasks);
return RestTable.buildResponse(tab, channel);
}
});
}
@Override
Table getTableWithHeader(final RestRequest request) {
Table t = new Table();
t.startHeaders();
t.addCell("insertOrder", "alias:o;text-align:right;desc:task insertion order");
t.addCell("timeInQueue", "alias:t;text-align:right;desc:how long task has been in queue");
t.addCell("priority", "alias:p;desc:task priority");
t.addCell("source", "alias:s;desc:task source");
t.endHeaders();
return t;
}
private Table buildTable(RestRequest request, PendingClusterTasksResponse tasks) {
Table t = getTableWithHeader(request);
for (PendingClusterTask task : tasks) {
t.startRow();
t.addCell(task.getInsertOrder());
t.addCell(task.getTimeInQueue());
t.addCell(task.getPriority());
t.addCell(task.getSource());
t.endRow();
}
return t;
}
}