iot-dashboard
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A generic dashboard application based on JavaScript, HTML and CSS. http://iot-dashboard.org
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<title>Code coverage report for src/datasourceApp/datasourceScheduler.ts</title>
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<a href="../../index.html">all files</a> / <a href="index.html">src/datasourceApp/</a> datasourceScheduler.ts
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
var DatasourceScheduler = (function () {
function DatasourceScheduler(dsInstance) {
this.dsInstance = dsInstance;
this._fetchInterval = 1000;
this.disposed = false;
this.running = false;
}
Object.defineProperty(DatasourceScheduler.prototype, "fetchInterval", {
set: <span class="fstat-no" title="function not covered" >function (ms) {</span>
<span class="cstat-no" title="statement not covered" > this._fetchInterval = ms;</span>
<span class="cstat-no" title="statement not covered" > if (this._fetchInterval < 1000) {</span>
<span class="cstat-no" title="statement not covered" > this.fetchInterval = 1000;</span>
<span class="cstat-no" title="statement not covered" > console.warn("Datasource has fetch interval below 1000ms, it was forced to 1000ms\n" +</span>
"Please do not set intervals shorter than 1000ms. If you really need this, file a ticket with explanation!");
}
<span class="cstat-no" title="statement not covered" > this.scheduleFetch(this._fetchInterval);</span>
},
enumerable: true,
configurable: true
});
DatasourceScheduler.prototype.start = function () {
this.running = true;
// Fetch once as soon as possible
this.scheduleFetch(0);
};
DatasourceScheduler.prototype.forceUpdate = <span class="fstat-no" title="function not covered" >function () {</span>
<span class="cstat-no" title="statement not covered" > this.scheduleFetch(0);</span>
};
DatasourceScheduler.prototype.dispose = function () {
this.clearFetchTimeout();
this.disposed = true;
this.running = false;
};
DatasourceScheduler.prototype.scheduleFetch = function (ms) {
var _this = this;
this.clearFetchTimeout();
<span class="missing-if-branch" title="if path not taken" >I</span>if (ms === Infinity) {
<span class="cstat-no" title="statement not covered" > return;</span>
}
<span class="missing-if-branch" title="if path not taken" >I</span>if (!this.running) {
<span class="cstat-no" title="statement not covered" > return;</span>
}
this.fetchTimeoutRef = setTimeout(function () {
_this.doFetchData();
}, ms);
};
DatasourceScheduler.prototype.clearFetchTimeout = function () {
if (this.fetchTimeoutRef) {
clearTimeout(this.fetchTimeoutRef);
this.fetchTimeoutRef = null;
}
};
DatasourceScheduler.prototype.doFetchData = <span class="fstat-no" title="function not covered" >function () {</span>
<span class="cstat-no" title="statement not covered" > var _this = this;</span>
<span class="cstat-no" title="statement not covered" > if (this.fetchPromise) {</span>
<span class="cstat-no" title="statement not covered" > console.warn("Do not fetch data because a fetch is currently running on Datasource", this.dsInstance.id);</span>
<span class="cstat-no" title="statement not covered" > return;</span>
}
<span class="cstat-no" title="statement not covered" > var fetchPromise = new Promise(<span class="fstat-no" title="function not covered" >function (resolve, reject) {</span></span>
<span class="cstat-no" title="statement not covered" > _this.dsInstance.fetchData(resolve, reject);</span>
<span class="cstat-no" title="statement not covered" > setTimeout(<span class="fstat-no" title="function not covered" >function () {</span></span>
<span class="cstat-no" title="statement not covered" > if (_this.fetchPromise === fetchPromise) {</span>
<span class="cstat-no" title="statement not covered" > reject(new Error("Timeout! Datasource fetchData() took longer than 5 seconds."));</span>
}
}, 5000);
});
<span class="cstat-no" title="statement not covered" > this.fetchPromise = fetchPromise;</span>
<span class="cstat-no" title="statement not covered" > fetchPromise.then(<span class="fstat-no" title="function not covered" >function (result) {</span></span>
<span class="cstat-no" title="statement not covered" > _this.fetchPromise = null;</span>
<span class="cstat-no" title="statement not covered" > if (!_this.disposed) {</span>
<span class="cstat-no" title="statement not covered" > if (result !== undefined) {</span>
<span class="cstat-no" title="statement not covered" > _this.dsInstance.fetchedDatasourceData(result);</span>
}
<span class="cstat-no" title="statement not covered" > _this.scheduleFetch(_this._fetchInterval);</span>
}
else {
<span class="cstat-no" title="statement not covered" > console.error("fetchData of disposed plugin finished - result discarded", _this.dsInstance.id, result);</span>
}
}).catch(<span class="fstat-no" title="function not covered" >function (error) {</span>
<span class="cstat-no" title="statement not covered" > console.warn("Failed to fetch data for Datasource of type " + _this.dsInstance.type + " with id " + _this.dsInstance.id);</span>
<span class="cstat-no" title="statement not covered" > console.error(error);</span>
<span class="cstat-no" title="statement not covered" > _this.fetchPromise = null;</span>
<span class="cstat-no" title="statement not covered" > _this.scheduleFetch(_this._fetchInterval);</span>
});
};
return DatasourceScheduler;
}());
exports.DatasourceScheduler = DatasourceScheduler;
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