haste-server/lib/document_stores/memcached.js

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var memcached = require('memcache');
var winston = require('winston');
// Create a new store with options
var MemcachedDocumentStore = function(options) {
this.expire = options.expire;
if (!MemcachedDocumentStore.client) {
MemcachedDocumentStore.connect(options);
}
};
// Create a connection
MemcachedDocumentStore.connect = function(options) {
var host = options.host || '127.0.0.1';
var port = options.port || 11211;
this.client = new memcached.Client(port, host);
this.client.connect();
this.client.on('connect', function() {
winston.info('connected to memcached on ' + host + ':' + port);
});
this.client.on('error', function(e) {
winston.info('error connecting to memcached', { error: e });
});
};
// Save file in a key
MemcachedDocumentStore.prototype.set =
function(key, data, callback, skipExpire) {
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MemcachedDocumentStore.client.set(key, data, function(err, reply) {
err ? callback(false) : callback(true);
}, skipExpire ? 0 : this.expire);
};
// Get a file from a key
MemcachedDocumentStore.prototype.get = function(key, callback, skipExpire) {
var _this = this;
MemcachedDocumentStore.client.get(key, function(err, reply) {
callback(err ? false : reply);
if (_this.expire && !skipExpire) {
winston.warn('store does not currently push forward expirations on GET');
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}
});
};
module.exports = MemcachedDocumentStore;