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Mini Shell
Mini Shell
;(function() {
"use strict";
BX.namespace("BX.Landing");
var isFunction = BX.Landing.Utils.isFunction;
/**
* Implements interface for works with cache
* @constructor
*/
BX.Landing.Cache = function()
{
this.store = [];
};
BX.Landing.Cache.globalStore = {};
/**
* Gets cached data from global storage
* @param {string} key - Use BX.Landing.Utils.hash function for make hash from any objects
* @param {*|function} [defaultValue]
* @return {*}
*/
BX.Landing.Cache.get = function(key, defaultValue)
{
if (key in BX.Landing.Cache.globalStore)
{
return BX.Landing.Cache.globalStore[key];
}
if (isFunction(defaultValue))
{
return defaultValue();
}
return defaultValue;
};
/**
* Sets value to global cache storage
* @param {string} key - Use BX.Landing.Utils.hash function for make hash from any objects
* @param {*} value
*/
BX.Landing.Cache.set = function(key, value)
{
BX.Landing.Cache.globalStore[key] = value;
};
/**
* Checks has key in global cache storage
* @param {string} key - Use BX.Landing.Utils.hash function for make hash from any objects
* @return {boolean}
*/
BX.Landing.Cache.has = function(key)
{
return key in BX.Landing.Cache.globalStore;
};
BX.Landing.Cache.prototype = {
/**
* Adds entry to store
* @param args
* @param value
*/
add: function(args, value)
{
if (!this.has(args))
{
this.store.push(new BX.Landing.Cache.Entry(args, value));
}
},
/**
* Sets cache entry
* @param args
* @param value
*/
set: function(args, value)
{
this.store = this.store.filter(function(entry) {
return !entry.has(args);
});
this.add(args, value);
},
/**
* Checks that store has entry with args
* @param args
* @return {Boolean}
*/
has: function(args)
{
return this.store.some(function(entry) {
return entry.has(args);
});
},
/**
* Gets entry from cache store
* @param args
* @return {?Entry}
*/
get: function(args)
{
var entry = this.store.find(function(entry) {
return entry.has(args);
});
if (entry)
{
return entry.value;
}
return null;
},
/**
* Clears store
*/
clear: function()
{
this.store = [];
}
};
})();
Zerion Mini Shell 1.0