Files
server/DocService/sources/pubsubRedis.js
Alexander.Trofimov 5cc068db6c change license to 2017
2017-01-17 18:02:27 +03:00

103 lines
3.5 KiB
JavaScript

/*
* (c) Copyright Ascensio System SIA 2010-2017
*
* This program is a free software product. You can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License (AGPL)
* version 3 as published by the Free Software Foundation. In accordance with
* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
* that Ascensio System SIA expressly excludes the warranty of non-infringement
* of any third-party rights.
*
* This program is distributed WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
*
* You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia,
* EU, LV-1021.
*
* The interactive user interfaces in modified source and object code versions
* of the Program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU AGPL version 3.
*
* Pursuant to Section 7(b) of the License you must retain the original Product
* logo when distributing the program. Pursuant to Section 7(e) we decline to
* grant you any rights under trademark law for use of our trademarks.
*
* All the Product's GUI elements, including illustrations and icon sets, as
* well as technical writing content are licensed under the terms of the
* Creative Commons Attribution-ShareAlike 4.0 International. See the License
* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
*
*/
'use strict';
var config = require('config').get('services.CoAuthoring.redis');
var events = require('events');
var util = require('util');
var logger = require('./../../Common/sources/logger');
var constants = require('./../../Common/sources/constants');
var redis = require(config.get('name'));
var cfgRedisPrefix = config.get('prefix');
var cfgRedisHost = config.get('host');
var cfgRedisPort = config.get('port');
var channelName = cfgRedisPrefix + constants.REDIS_KEY_PUBSUB;
function createClientRedis() {
var redisClient = redis.createClient(cfgRedisPort, cfgRedisHost, {});
redisClient.on('error', function(err) {
logger.error('redisClient error %s', err.toString());
});
return redisClient;
}
var g_redisClient = null;
function getClientRedis() {
if (!g_redisClient) {
g_redisClient = createClientRedis();
}
return g_redisClient;
}
function PubsubRedis() {
this.clientPublish = null;
this.clientSubscribe = null;
}
util.inherits(PubsubRedis, events.EventEmitter);
PubsubRedis.prototype.init = function(callback) {
var pubsub = this;
pubsub.clientPublish = createClientRedis();
pubsub.clientSubscribe = createClientRedis();
pubsub.clientSubscribe.subscribe(channelName);
pubsub.clientSubscribe.on('message', function(channel, message) {
pubsub.emit('message', message);
});
callback(null);
};
PubsubRedis.prototype.initPromise = function() {
var t = this;
return new Promise(function(resolve, reject) {
t.init(function(err) {
if (err) {
reject(err);
} else {
resolve();
}
});
});
};
PubsubRedis.prototype.publish = function(data) {
this.clientPublish.publish(channelName, data);
};
PubsubRedis.prototype.close = function() {
var t = this;
return new Promise(function(resolve, reject) {
t.clientPublish.quit();
t.clientSubscribe.quit();
resolve();
});
};
module.exports = PubsubRedis;
module.exports.getClientRedis = getClientRedis;