mirror of
https://github.com/nasa/openmct.git
synced 2024-12-19 13:17:53 +00:00
66b5e6e83c
* initial implementation * cleaning up a bit * adding the hash method back as we dont want gigantic keys * adding a line * added filtering to state generator, updated filters readme to fix error, more robust hash function * removing unnecessary changes in wrong file * adding a test to confirm each endpoint has a separate subscription based of filtering * lint * adding back in hints, accidentally removed * remove some redundant code and convert sanitization method into a replacer function for stringify * tweaking serialize replacer to handle arrays correctly, adding more determinative row addition check to test * more focused selector for the table * simplified the serialization method even further and added some more docs
90 lines
3.0 KiB
JavaScript
90 lines
3.0 KiB
JavaScript
/*****************************************************************************
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* Open MCT, Copyright (c) 2014-2024, 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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export default function StateGeneratorProvider() {}
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function pointForTimestamp(timestamp, duration, name) {
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return {
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name: name,
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utc: Math.floor(timestamp / duration) * duration,
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value: Math.floor(timestamp / duration) % 2
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};
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}
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StateGeneratorProvider.prototype.supportsSubscribe = function (domainObject) {
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return domainObject.type === 'example.state-generator';
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};
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StateGeneratorProvider.prototype.subscribe = function (domainObject, callback, options) {
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var duration = domainObject.telemetry.duration * 1000;
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var interval = setInterval(() => {
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var now = Date.now();
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var datum = pointForTimestamp(now, duration, domainObject.name);
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if (!this.shouldBeFiltered(datum, options)) {
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datum.value = String(datum.value);
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callback(datum);
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}
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}, duration);
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return function () {
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clearInterval(interval);
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};
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};
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StateGeneratorProvider.prototype.supportsRequest = function (domainObject, options) {
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return domainObject.type === 'example.state-generator';
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};
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StateGeneratorProvider.prototype.request = function (domainObject, options) {
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var start = options.start;
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var end = Math.min(Date.now(), options.end); // no future values
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var duration = domainObject.telemetry.duration * 1000;
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if (options.strategy === 'latest' || options.size === 1) {
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start = end;
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}
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var data = [];
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while (start <= end && data.length < 5000) {
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const point = pointForTimestamp(start, duration, domainObject.name);
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if (!this.shouldBeFiltered(point, options)) {
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data.push(point);
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}
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start += duration;
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}
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return Promise.resolve(data);
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};
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StateGeneratorProvider.prototype.shouldBeFiltered = function (point, options) {
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const valueToFilter = options?.filters?.state?.equals?.[0];
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if (!valueToFilter) {
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return false;
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}
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const { value } = point;
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return value !== Number(valueToFilter);
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};
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