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[Examples] #359 Cleaned up REMS data integration example.

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Henry
2016-01-22 10:49:40 -08:00
parent 2e65a6a63e fcae3fd7a9
commit c091063b83
316 changed files with 17432 additions and 6983 deletions
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71
example/msl/src/RemsTelemetryServerAdapter.js
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@ -25,20 +25,20 @@ define(
["./MSLDataDictionary"],
function (MSLDataDictionary) {
"use strict";
var TERRESTRIAL_DATE = "terrestrial_date";
/**
* Fetches historical data from the REMS instrument on the Curiosity
* Rover. Exposes two services to client code, one
* Rover.
* @memberOf example/msl
* @param $q
* @param $http
* @param REMS_WS_URL
* @returns {{dictionary: exports, history: Function}}
* @param REMS_WS_URL The location of the REMS telemetry data.
* @constructor
*/
function RemsTelemetryServerAdapter($q, $http, REMS_WS_URL) {
this.histories = {},
this.historyData = {},
this.deferreds = {};
this.REMS_WS_URL = REMS_WS_URL;
this.$q = $q;
@ -46,48 +46,69 @@ define(
}
/**
* The data dictionary for this data source.
* @type {MSLDataDictionary}
*/
RemsTelemetryServerAdapter.prototype.dictionary = MSLDataDictionary;
/**
* Fetches historical data from source, and associates it with the
* given request ID.
* @private
*/
RemsTelemetryServerAdapter.prototype.requestHistory = function(id) {
var self = this;
return this.$http.get(this.REMS_WS_URL).then(function(response){
self.histories = {};
/**
* All history is fetched in one go, cache it all to save round trips to the server on subsequent requests
/*
* Refresh history data on each request so that it's always
* current.
*/
self.historyData = {};
/*
* History data is organised by Sol. Iterate over sols...
*/
response.data.soles.forEach(function(solData){
for (var prop in solData){
self.histories[prop] = self.histories[prop] || [];
/*
* Each sol contains a number of properties for each
* piece of data available, eg. min ground temperature,
* avg air pressure, etc.
*/
Object.keys(solData).forEach(function (prop) {
self.historyData[prop] = self.historyData[prop] || [];
/*
* Check that valid data exists
*/
if (!isNaN(solData[prop])) {
self.histories[prop].unshift({
/*
* Append each data point to the array of values
* for this data point property (min. temp, etc).
*/
self.historyData[prop].unshift({
date: Date.parse(solData[TERRESTRIAL_DATE]),
value: solData[prop]
});
}
}
});
});
self.deferreds[id].resolve({id: id, values: self.histories[id]});
self.deferreds[id].resolve({id: id, values: self.historyData[id]});
});
};
/**
*
* @type {exports}
*/
RemsTelemetryServerAdapter.prototype.dictionary = MSLDataDictionary;
/**
*
* @param id
* @returns {p.promise|{then, fail, end}|performPromise|deferred.promise|{}|*}
* Requests historical telemetry for the named data attribute. In
* the case of REMS, this data source exposes multiple different
* data variables from the REMS instrument, including temperature
* and others
* @param id The telemetry data point key to be queried.
* @returns {Promise | Array<RemsTelemetryValue>} that resolves with an Array of {@link RemsTelemetryValue} objects for the request data key.
*/
RemsTelemetryServerAdapter.prototype.history = function(id) {
this.deferreds[id] = this.deferreds[id] || this.$q.defer();
if (this.histories[id]) {
this.deferreds[id].resolve({id: id, values: this.histories[id]});
if (this.historyData[id]) {
this.deferreds[id].resolve({id: id, values: this.historyData[id]});
} else {
this.histories = {};
this.historyData = {};
this.requestHistory(id);
}
return this.deferreds[id].promise;