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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,
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package org.elasticsearch.rest.action.admin.cluster.node.tasks;

import org.elasticsearch.action.admin.cluster.node.tasks.cancel.CancelTasksRequest;
import org.elasticsearch.action.admin.cluster.node.tasks.cancel.CancelTasksResponse;
import org.elasticsearch.client.Client;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.rest.BaseRestHandler;
import org.elasticsearch.rest.RestChannel;
import org.elasticsearch.rest.RestController;
import org.elasticsearch.rest.RestRequest;
import org.elasticsearch.rest.action.support.RestToXContentListener;
import org.elasticsearch.tasks.TaskId;

import static org.elasticsearch.rest.RestRequest.Method.POST;


public class RestCancelTasksAction extends BaseRestHandler {

    @Inject
    public RestCancelTasksAction(Settings settings, RestController controller, Client client) {
        super(settings, controller, client);
        controller.registerHandler(POST, "/_tasks/_cancel", this);
        controller.registerHandler(POST, "/_tasks/{taskId}/_cancel", this);
    }

    @Override
    public void handleRequest(final RestRequest request, final RestChannel channel, final Client client) {
        String[] nodesIds = Strings.splitStringByCommaToArray(request.param("nodeId"));
        TaskId taskId = new TaskId(request.param("taskId"));
        String[] actions = Strings.splitStringByCommaToArray(request.param("actions"));
        TaskId parentTaskId = new TaskId(request.param("parent_task_id"));

        CancelTasksRequest cancelTasksRequest = new CancelTasksRequest();
        cancelTasksRequest.setTaskId(taskId);
        cancelTasksRequest.setNodesIds(nodesIds);
        cancelTasksRequest.setActions(actions);
        cancelTasksRequest.setParentTaskId(parentTaskId);
        client.admin().cluster().cancelTasks(cancelTasksRequest, new RestToXContentListener(channel));
    }

    @Override
    public boolean canTripCircuitBreaker() {
        return false;
    }
}




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