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Added local caching of query responses for REMS data. Also added code to mux simultaneous initial requests for data into a single http request.

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This commit is contained in:
Henry 2016-04-06 12:45:45 -07:00
parent 9e5689f7dd
commit b3981e6158
8 changed files with 271 additions and 17 deletions
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57
demo/bundle.js Normal file
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@ -0,0 +1,57 @@
/*****************************************************************************
* Open MCT Web, Copyright (c) 2014-2015, United States Government
* as represented by the Administrator of the National Aeronautics and Space
* Administration. All rights reserved.
*
* Open MCT Web is licensed under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
* Open MCT Web includes source code licensed under additional open source
* licenses. See the Open Source Licenses file (LICENSES.md) included with
* this source code distribution or the Licensing information page available
* at runtime from the About dialog for additional information.
*****************************************************************************/
/*global define*/
define([
"./src/DemoConductorRepresenter",
"./src/DemoInitializer",
"./src/ConductorServiceDecorator",
'legacyRegistry'
], function (
DemoConductorRepresenter,
DemoInitializer,
ConductorServiceDecorator,
legacyRegistry
) {
"use strict";
legacyRegistry.register("demo", {
"name": "Live Demo configuration",
"description": "Adds demo data types, and demo-specific behavior",
"extensions": {
"representers": [
{
"implementation": DemoConductorRepresenter,
"depends": ["$q", "views[]"],
"priority": "fallback"
}
],
"components": [
{
"implementation": ConductorServiceDecorator,
"provides": "conductorService",
"type": "decorator"
}
]
}
});
});

41
demo/src/ConductorServiceDecorator.js Normal file
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@ -0,0 +1,41 @@
/*****************************************************************************
* Open MCT Web, Copyright (c) 2014-2015, United States Government
* as represented by the Administrator of the National Aeronautics and Space
* Administration. All rights reserved.
*
* Open MCT Web is licensed under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
* Open MCT Web includes source code licensed under additional open source
* licenses. See the Open Source Licenses file (LICENSES.md) included with
* this source code distribution or the Licensing information page available
* at runtime from the About dialog for additional information.
*****************************************************************************/
/*global define,Promise*/
define(
[],
function () {
"use strict";
function ConductorServiceDecorator(conductorService) {
conductorService.getConductor().displayStart(Date.UTC(2012,8,7));
return {
getConductor: function () {
return conductorService.getConductor();
}
};
}
return ConductorServiceDecorator;
}
);

101
demo/src/DemoConductorRepresenter.js Normal file
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@ -0,0 +1,101 @@
/*****************************************************************************
* Open MCT Web, Copyright (c) 2014-2015, United States Government
* as represented by the Administrator of the National Aeronautics and Space
* Administration. All rights reserved.
*
* Open MCT Web is licensed under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
* Open MCT Web includes source code licensed under additional open source
* licenses. See the Open Source Licenses file (LICENSES.md) included with
* this source code distribution or the Licensing information page available
* at runtime from the About dialog for additional information.
*****************************************************************************/
/*global define*/
define(
[
"zepto"
],
function ($) {
"use strict";
function DemoConductorRepresenter(
$q,
views,
scope,
element
) {
this.$q = $q;
this.scope = scope;
this.element = element;
this.views = views;
}
function fastPromise(value) {
return {
then: function (callback) {
return fastPromise(callback(value));
}
}
}
function and(array) {
return array.reduce(function (previous, next) {
return previous && next;
}, true);
}
/**
* Test whether the given object OR all of its descendants have the
* conductor enabled
* @param object
* @returns {*}
*/
DemoConductorRepresenter.prototype.showConductor = function (object) {
var self = this;
//Does the object itself allow the time conductor?
if (object.getModel().showConductor) {
return fastPromise(object.getModel().showConductor);
} else {
//If not, do all of its constituents allow time conductor?
if (object.hasCapability('composition')) {
return object.useCapability('composition').then(function (composition) {
return self.$q.all(composition.map(self.showConductor.bind(self))).then(and);
});
} else {
//if no, hide time conductor
return fastPromise(false);
}
}
}
/**
* @param representation
* @param representedObject
*/
DemoConductorRepresenter.prototype.represent = function (representation, representedObject) {
if (this.views.indexOf(representation) !== -1) {
this.showConductor(representedObject).then(function (show) {
if (!show || representation.type === 'folder') {
$('.l-time-controller').hide();
}
});
}
};
DemoConductorRepresenter.prototype.destroy = function destroy() {
};
return DemoConductorRepresenter;
});

33
demo/src/DemoInitializer.js Normal file
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@ -0,0 +1,33 @@
/*****************************************************************************
* Open MCT Web, Copyright (c) 2014-2015, United States Government
* as represented by the Administrator of the National Aeronautics and Space
* Administration. All rights reserved.
*
* Open MCT Web is licensed under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
* Open MCT Web includes source code licensed under additional open source
* licenses. See the Open Source Licenses file (LICENSES.md) included with
* this source code distribution or the Licensing information page available
* at runtime from the About dialog for additional information.
*****************************************************************************/
/*global define*/
define(
function (){
"use strict";
function DemoInitializer(conductorService) {
conductorService.getConductor().displayStart(Date.UTC(2012,8,7));
}
return DemoInitializer;
}
);

1
example/msl/src/RemsTelemetryModelProvider.js
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@ -50,6 +50,7 @@ define(
models[makeId(measurement)] = {
type: "msl.measurement",
name: measurement.name,
showConductor: true,
telemetry: {
key: measurement.identifier,
ranges: [{

42
example/msl/src/RemsTelemetryServerAdapter.js
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@ -44,7 +44,7 @@ define(
*/
function RemsTelemetryServerAdapter($q, $http, $log, REMS_WS_URL) {
this.localDataURI = module.uri.substring(0, module.uri.lastIndexOf('/') + 1) + LOCAL_DATA;
this.deferreds = {};
this.requestDeferred = undefined;
this.REMS_WS_URL = REMS_WS_URL;
this.$q = $q;
this.$http = $http;
@ -70,10 +70,6 @@ define(
function processResponse(response){
var data = [];
/*
* Currently all data is returned for entire history of the mission. Cache response to avoid unnecessary re-queries.
*/
self.cache = response;
/*
* History data is organised by Sol. Iterate over sols...
*/
@ -109,20 +105,42 @@ define(
});
}
function packageAndResolve(results){
deferred.resolve({id: id, values: results});
function packageResults(results){
return {id: id, values: results};
}
this.$q.when(this.cache || this.$http.get(this.REMS_WS_URL))
return this.request()
.catch(fallbackToLocal)
.then(processResponse)
.then(filterResults)
.then(packageAndResolve);
return deferred.promise;
.then(packageResults);
};
/**
* Sends a request for data, or uses local cache (if available).
* Allows only one HTTP request at a time.
* @private
* @returns {Function|promise}
*/
RemsTelemetryServerAdapter.prototype.request = function () {
var self = this;
if (this.requestDeferred) {
return this.requestDeferred.promise;
} else {
this.requestDeferred = this.$q.defer();
this.$q.when(this.cache || this.$http.get(this.REMS_WS_URL))
.then(function(response){
self.cache = response;
self.requestDeferred.resolve(response);
self.requestDeferred = undefined;
return response;
})
.catch(this.requestDeferred.reject);
return this.requestDeferred.promise;
}
}
/**
* Requests historical telemetry for the named data attribute. In
* the case of REMS, this data source exposes multiple different

6
main.js
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@ -80,6 +80,7 @@ define([
'./platform/features/plot/bundle',
'./platform/features/timeline/bundle',
'./platform/features/table/bundle',
'./platform/features/conductor/bundle',
'./platform/forms/bundle',
'./platform/identity/bundle',
'./platform/persistence/aggregator/bundle',
@ -93,7 +94,10 @@ define([
'./example/imagery/bundle',
'./example/eventGenerator/bundle',
'./example/generator/bundle'
'./example/generator/bundle',
'./example/msl/bundle',
'./demo/bundle',
], function (Main, legacyRegistry) {
'use strict';

7
platform/features/conductor/bundle.js
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@ -57,11 +57,10 @@ define([
"depends": [
"conductorService"
]
}
],
"services": [
},
{
"key": "conductorService",
"provides": "conductorService",
"type": "provider",
"implementation": ConductorService,
"depends": [
"now",