30 lines
611 B
JavaScript
30 lines
611 B
JavaScript
var crypto = require('crypto');
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function Cache() {
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this._store = {};
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}
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Cache.prototype.get = function(key) {
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key = this._serialize(key);
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return key in this._store ? this._store[key] : undefined;
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};
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Cache.prototype.set = function(key, value) {
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key = this._serialize(key);
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this._store[key] = value;
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return this;
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};
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Cache.prototype._serialize = function(mixedKey) {
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var json = JSON.stringify(mixedKey);
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return this._hash(json);
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};
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Cache.prototype._hash = function(str) {
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var shasum = crypto.createHash('md5');
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shasum.update(str);
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return shasum.digest('hex');
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};
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module.exports = Cache;
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