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71 lines
2.7 KiB
JavaScript
71 lines
2.7 KiB
JavaScript
/*****************************************************************************
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* Open MCT, Copyright (c) 2014-2016, United States Government
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* as represented by the Administrator of the National Aeronautics and Space
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* Administration. All rights reserved.
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*
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* Open MCT is licensed under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* Open MCT includes source code licensed under additional open source
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* licenses. See the Open Source Licenses file (LICENSES.md) included with
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* this source code distribution or the Licensing information page available
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* at runtime from the About dialog for additional information.
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*****************************************************************************/
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define(
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[],
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function () {
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/**
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* Used to handle telemetry delegation associated with a
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* given domain object.
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* @constructor
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* @memberof platform/telemetry
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*/
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function TelemetryDelegator($q) {
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this.$q = $q;
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}
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/**
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* Promise telemetry-providing objects associated with
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* this domain object (either the domain object itself,
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* or the objects it delegates)
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* @param {DomainObject} the domain object which may have
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* or delegate telemetry
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* @returns {Promise.<DomainObject[]>} domain objects with
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* a telemetry capability
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*/
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TelemetryDelegator.prototype.promiseTelemetryObjects = function (domainObject) {
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var $q = this.$q;
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// If object has been cleared, there are no relevant
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// telemetry-providing domain objects.
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if (!domainObject) {
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return $q.when([]);
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}
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// Otherwise, try delegation first, and attach the
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// object itself if it has a telemetry capability.
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return $q.when(domainObject.useCapability(
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"delegation",
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"telemetry"
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)).then(function (result) {
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var head = domainObject.hasCapability("telemetry") ?
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[domainObject] : [],
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tail = result || [];
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return head.concat(tail);
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});
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};
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return TelemetryDelegator;
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}
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);
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