forked from ether/ueberDB
/
redis_db.js
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/
redis_db.js
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/**
* 2011 Peter 'Pita' Martischka
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* 2012 Philip 'DerKobe' Claren
*
* Install node-redis by mranney
* https://github.com/mranney/node_redis
*
* Default settings for etherpad-lite:
* ...
* "dbType" : "redis",
* "dbSettings" : {
* "host" : "localhost",
* "port" : 6379,
* "database" : 0
* },
* ...
*
*/
var redis = require("redis");
exports.database = function(settings) {
this.client = null;
if(!settings) settings = {};
if(!settings.database) settings.database = 0;
if(!settings.host) settings.host = '127.0.0.1';
if(!settings.port) settings.port = 6379;
this.settings = settings;
}
exports.database.prototype.init = function(callback) {
this.client = redis.createClient(this.settings.port, this.settings.host);
this.client.database = this.settings.database;
this.client.on("error", function(err) {
console.error(err);
});
this.client.on("connect", function() {
console.log(this.database);
this.select(this.database);
callback();
});
}
exports.database.prototype.get = function (key, callback) {
this.client.get(key, function(err, val) {
if(!err) callback(null, val);
});
}
exports.database.prototype.set = function (key, value, callback) {
this.client.set(key,value,callback);
}
exports.database.prototype.remove = function (key, callback) {
this.client.del(key,callback);
}
exports.database.prototype.doBulk = function (bulk, callback) {
var multi = this.client.multi();
for(var i in bulk) {
if(bulk[i].type == "set") {
multi.set(bulk[i].key, bulk[i].value);
} else if(bulk[i].type == "remove") {
multi.del(bulk[i].key);
}
}
multi.exec(callback);
}
exports.database.prototype.close = function(callback) {
this.client.end(callback);
}