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[Persistence] Update code style

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Update code style for local storage based persistence.
This commit is contained in:
Victor Woeltjen 2015-09-11 14:05:01 -07:00
parent 36e38b9454
commit 048eb20450
1 changed files with 63 additions and 54 deletions
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105
platform/persistence/local/src/LocalStoragePersistenceProvider.js
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@ -21,66 +21,75 @@
*****************************************************************************/
/*global define,localStorage*/
/**
* Stubbed implementation of a persistence provider,
* to permit objects to be created, saved, etc.
*/
define(
[],
function () {
'use strict';
function BrowserPersistenceProvider($q, SPACE) {
var spaces = SPACE ? [SPACE] : [],
promises = {
as: function (value) {
return $q.when(value);
/**
* The LocalStoragePersistenceProvider reads and writes JSON documents
* (more specifically, domain object models) to/from the browser's
* local storage.
* @memberof platform/persistence/local
* @constructor
* @implements {PersistenceService}
* @param q Angular's $q, for promises
* @param $interval Angular's $interval service
* @param {string} space the name of the persistence space being served
*/
function LocalStoragePersistenceProvider($q, space) {
this.$q = $q;
this.space = space;
this.spaces = space ? [space] : [];
}
},
provider;
function setValue(key, value) {
/**
* Set a value in local storage.
* @private
*/
LocalStoragePersistenceProvider.prototype.setValue = function (key, value) {
localStorage[key] = JSON.stringify(value);
}
function getValue(key) {
if (localStorage[key]) {
return JSON.parse(localStorage[key]);
}
return {};
}
provider = {
listSpaces: function () {
return promises.as(spaces);
},
listObjects: function (space) {
var space_obj = getValue(space);
return promises.as(Object.keys(space_obj));
},
createObject: function (space, key, value) {
var space_obj = getValue(space);
space_obj[key] = value;
setValue(space, space_obj);
return promises.as(true);
},
readObject: function (space, key) {
var space_obj = getValue(space);
return promises.as(space_obj[key]);
},
deleteObject: function (space, key, value) {
var space_obj = getValue(space);
delete space_obj[key];
return promises.as(true);
}
};
provider.updateObject = provider.createObject;
/**
* Get a value from local storage.
* @private
*/
LocalStoragePersistenceProvider.prototype.getValue = function (key) {
return localStorage[key] ? JSON.parse(localStorage[key]) : {};
};
return provider;
LocalStoragePersistenceProvider.prototype.listSpaces = function () {
return this.$q.when(this.spaces);
};
}
LocalStoragePersistenceProvider.prototype.listObjects = function (space) {
return this.$q.when(Object.keys(this.getValue(space)));
};
return BrowserPersistenceProvider;
LocalStoragePersistenceProvider.prototype.createObject = function (space, key, value) {
var spaceObj = this.getValue(space);
spaceObj[key] = value;
this.setValue(space, spaceObj);
return this.$q.when(true);
};
LocalStoragePersistenceProvider.prototype.readObject = function (space, key) {
var spaceObj = this.getValue(space);
return this.$q.when(spaceObj[key]);
};
LocalStoragePersistenceProvider.prototype.deleteObject = function (space, key, value) {
var spaceObj = this.getValue(space);
delete spaceObj[key];
this.setValue(space, spaceObj);
return this.$q.when(true);
};
LocalStoragePersistenceProvider.prototype.updateObject =
LocalStoragePersistenceProvider.prototype.createObject;
return LocalStoragePersistenceProvider;
}
);