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