51 lines
1.6 KiB
JavaScript
51 lines
1.6 KiB
JavaScript
var AbstractClientStore = require('./AbstractClientStore'),
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_ = require('underscore'),
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longTimeout = require('long-timeout'); // not sure this is really neccessary, since it seems like node currently supports long timeouts natively
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var MemoryStore = module.exports = function (options) {
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this.data = {};
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_.bindAll(this, 'set', 'get', 'reset');
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this.options = _.extend({}, MemoryStore.defaults, options);
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};
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MemoryStore.prototype = Object.create(AbstractClientStore.prototype);
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MemoryStore.prototype.set = function (key, value, lifetime, callback) {
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key = this.options.prefix+key;
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lifetime = lifetime || 0;
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value = JSON.stringify(value);
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if (!this.data[key]) {
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this.data[key] = {};
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} else if (this.data[key].timeout) {
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longTimeout.clearTimeout(this.data[key].timeout);
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}
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this.data[key].value = value;
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if (lifetime) {
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this.data[key].timeout = longTimeout.setTimeout(_.bind(function () {
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delete this.data[key];
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}, this), 1000*lifetime);
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}
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typeof callback == 'function' && callback(null);
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};
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MemoryStore.prototype.get = function (key, callback) {
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key = this.options.prefix+key;
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var data = this.data[key] && this.data[key].value;
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if (data) {
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data = JSON.parse(data);
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data.lastRequest = new Date(data.lastRequest);
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data.firstRequest = new Date(data.firstRequest);
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}
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typeof callback == 'function' && callback(null, data);
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};
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MemoryStore.prototype.reset = function (key, callback) {
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key = this.options.prefix+key;
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if (this.data[key] && this.data[key].timeout) {
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longTimeout.clearTimeout(this.data[key].timeout);
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}
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delete this.data[key];
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typeof callback == 'function' && callback(null);
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};
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MemoryStore.defaults = {
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prefix: ''
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}; |