openmct/example/generator/GeneratorProvider.js

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/*****************************************************************************
* Open MCT, Copyright (c) 2014-2017, United States Government
* as represented by the Administrator of the National Aeronautics and Space
* Administration. All rights reserved.
*
* Open MCT is licensed 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
* under the License.
*
* Open MCT includes source code licensed under additional open source
* licenses. See the Open Source Licenses file (LICENSES.md) included with
* this source code distribution or the Licensing information page available
* at runtime from the About dialog for additional information.
*****************************************************************************/
define([
'./WorkerInterface'
], function (
WorkerInterface
) {
var REQUEST_DEFAULTS = {
amplitude: 1,
period: 10,
offset: 0,
dataRateInHz: 1,
randomness: 0,
phase: 0
};
function GeneratorProvider() {
this.workerInterface = new WorkerInterface();
}
GeneratorProvider.prototype.canProvideTelemetry = function (domainObject) {
return domainObject.type === 'generator';
};
GeneratorProvider.prototype.supportsRequest =
GeneratorProvider.prototype.supportsSubscribe =
GeneratorProvider.prototype.canProvideTelemetry;
GeneratorProvider.prototype.makeWorkerRequest = function (domainObject, request) {
var props = [
'amplitude',
'period',
'offset',
'dataRateInHz',
'phase',
'randomness'
];
request = request || {};
var workerRequest = {};
props.forEach(function (prop) {
if (domainObject.telemetry && Object.prototype.hasOwnProperty.call(domainObject.telemetry, prop)) {
workerRequest[prop] = domainObject.telemetry[prop];
}
if (request && Object.prototype.hasOwnProperty.call(request, prop)) {
workerRequest[prop] = request[prop];
}
if (!Object.prototype.hasOwnProperty.call(workerRequest, prop)) {
workerRequest[prop] = REQUEST_DEFAULTS[prop];
}
workerRequest[prop] = Number(workerRequest[prop]);
});
workerRequest.name = domainObject.name;
return workerRequest;
};
GeneratorProvider.prototype.request = function (domainObject, request) {
var workerRequest = this.makeWorkerRequest(domainObject, request);
workerRequest.start = request.start;
workerRequest.end = request.end;
return this.workerInterface.request(workerRequest);
};
GeneratorProvider.prototype.subscribe = function (domainObject, callback) {
var workerRequest = this.makeWorkerRequest(domainObject, {});
return this.workerInterface.subscribe(workerRequest, callback);
};
return GeneratorProvider;
});