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bfbd0012b1
* Add test to ensure out of order data plotting doesn't draw backwards interpolation lines * Remove focused test --------- Co-authored-by: Andrew Henry <akhenry@gmail.com>
107 lines
3.3 KiB
JavaScript
107 lines
3.3 KiB
JavaScript
/*****************************************************************************
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* Open MCT, Copyright (c) 2014-2025, 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 class StateGeneratorProvider {
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constructor(openmct) {
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this.openmct = openmct;
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}
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supportsRequest(domainObject, options) {
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return domainObject.type === 'example.state-generator';
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}
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supportsSubscribe(domainObject) {
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return domainObject.type === 'example.state-generator';
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}
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subscribe(domainObject, callback, options) {
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const duration = domainObject.telemetry.duration * 1000;
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let tick = 0;
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const interval = setInterval(() => {
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tick += 1;
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let now = this.openmct.time.now() || Date.now();
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let flip = false;
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if (domainObject.telemetry.outOfOrder && tick % 2 === 0) {
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now -= duration * 1.5;
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flip = true;
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}
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const datum = this.#pointForTimestamp(now, duration, domainObject.name, flip);
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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 () => {
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clearInterval(interval);
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};
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}
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request(domainObject, options) {
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let start = options.start;
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const now = this.openmct.time.now() || Date.now();
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const end = Math.min(now, options.end); // no future values
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const 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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const data = [];
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while (start <= end && data.length < 5000) {
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const point = this.#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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#pointForTimestamp(timestamp, duration, name, flip = false) {
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const key = this.openmct.time.getTimeSystem()?.key || 'utc';
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const point = {
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name: name,
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value: Math.floor(timestamp / duration) % 2
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};
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if (flip) {
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point.value = 99;
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}
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point[key] = Math.floor(timestamp / duration) * duration;
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return point;
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}
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#shouldBeFiltered(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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}
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