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/*****************************************************************************
* Open MCT, Copyright (c) 2014-2022, 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([
'objectUtils',
'./TelemetryAverager'
], function (objectUtils, TelemetryAverager) {
function MeanTelemetryProvider(openmct) {
this.openmct = openmct;
this.telemetryAPI = openmct.telemetry;
this.timeAPI = openmct.time;
this.objectAPI = openmct.objects;
this.perObjectProviders = {};
}
MeanTelemetryProvider.prototype.canProvideTelemetry = function (domainObject) {
return domainObject.type === 'telemetry-mean';
};
MeanTelemetryProvider.prototype.supportsRequest =
MeanTelemetryProvider.prototype.supportsSubscribe =
MeanTelemetryProvider.prototype.canProvideTelemetry;
MeanTelemetryProvider.prototype.subscribe = function (domainObject, callback) {
let wrappedUnsubscribe;
let unsubscribeCalled = false;
const objectId = objectUtils.parseKeyString(domainObject.telemetryPoint);
const samples = domainObject.samples;
this.objectAPI.get(objectId)
.then(function (linkedDomainObject) {
if (!unsubscribeCalled) {
wrappedUnsubscribe = this.subscribeToAverage(linkedDomainObject, samples, callback);
}
}.bind(this))
.catch(logError);
return function unsubscribe() {
unsubscribeCalled = true;
if (wrappedUnsubscribe !== undefined) {
wrappedUnsubscribe();
}
};
};
MeanTelemetryProvider.prototype.subscribeToAverage = function (domainObject, samples, callback) {
const telemetryAverager = new TelemetryAverager(this.telemetryAPI, this.timeAPI, domainObject, samples, callback);
const createAverageDatum = telemetryAverager.createAverageDatum.bind(telemetryAverager);
return this.telemetryAPI.subscribe(domainObject, createAverageDatum);
};
MeanTelemetryProvider.prototype.request = function (domainObject, request) {
const objectId = objectUtils.parseKeyString(domainObject.telemetryPoint);
const samples = domainObject.samples;
return this.objectAPI.get(objectId).then(function (linkedDomainObject) {
return this.requestAverageTelemetry(linkedDomainObject, request, samples);
}.bind(this));
};
/**
* @private
*/
MeanTelemetryProvider.prototype.requestAverageTelemetry = function (domainObject, request, samples) {
const averageData = [];
const addToAverageData = averageData.push.bind(averageData);
const telemetryAverager = new TelemetryAverager(this.telemetryAPI, this.timeAPI, domainObject, samples, addToAverageData);
const createAverageDatum = telemetryAverager.createAverageDatum.bind(telemetryAverager);
return this.telemetryAPI.request(domainObject, request).then(function (telemetryData) {
telemetryData.forEach(createAverageDatum);
return averageData;
});
};
/**
* @private
*/
MeanTelemetryProvider.prototype.getLinkedObject = function (domainObject) {
const objectId = objectUtils.parseKeyString(domainObject.telemetryPoint);
return this.objectAPI.get(objectId);
};
function logError(error) {
if (error.stack) {
console.error(error.stack);
} else {
console.error(error);
}
}
return MeanTelemetryProvider;
});
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