Source: org/terraswarm/accessor/accessors/web/utilities/Stop.js

// Accessor that stops execution of the enclosing swarmlet.
//
// Copyright (c) 2016-2016 The Regents of the University of California.
// All rights reserved.
//
// Permission is hereby granted, without written agreement and without
// license or royalty fees, to use, copy, modify, and distribute this
// software and its documentation for any purpose, provided that the above
// copyright notice and the following two paragraphs appear in all copies
// of this software.
//
// IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
// FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
// THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE.
//
// THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
// PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
// CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
// ENHANCEMENTS, OR MODIFICATIONS.
//

/** Accessor that stops execution of the enclosing swarmlet when it
 *  receives an input with value true. It does this by identifying
 *  the top-level enclosing composite accessor and invoking wrapup
 *  on it.
 *
 *  @accessor utilities/Stop
 *  @input {boolean} stop A signal with value true to stop the swarmlet.
 *  @author Edward A. Lee (eal@eecs.berkeley.edu)
 *  @version $$Id$$
 */

// Stop extra messages from jslint and jshint.  Note that there should be no
// space between the / and the * and global. See https://chess.eecs.berkeley.edu/ptexternal/wiki/Main/JSHint */
/*global  exports, require */
/*jshint globalstrict: true*/
"use strict";

exports.setup = function () {
    this.input('stop', {
        'type': 'boolean'
    });
};

exports.initialize = function () {
    var thiz = this;
    this.addInputHandler('stop', function () {
        var stop = thiz.get('stop');
        if (stop) {
            thiz.stop();
        }
    });
};