SparkleShare/Sparkles/ListenerFactory.cs
2017-07-23 13:47:54 +01:00

67 lines
2.8 KiB
C#

// SparkleShare, a collaboration and sharing tool.
// Copyright (C) 2010 Hylke Bons <hi@planetpeanut.uk>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
using System;
using System.Collections.Generic;
namespace Sparkles {
public static class ListenerFactory {
static readonly List<BaseListener> listeners = new List<BaseListener> ();
public static BaseListener CreateListener (string folder_name, string folder_identifier)
{
// Check if the user wants to use a global custom notification service
string uri = Configuration.DefaultConfiguration.GetConfigOption ("announcements_url");
// Check if the user wants a use a custom notification service for this folder
if (string.IsNullOrEmpty (uri))
uri = Configuration.DefaultConfiguration.GetFolderOptionalAttribute (folder_name, "announcements_url");
// This is SparkleShare's centralized notification service.
// It communicates "It's time to sync!" signals between clients.
//
// Please see the SparkleShare wiki if you wish to run
// your own service instead
if (string.IsNullOrEmpty (uri))
uri = "tcp://announcements.sparkleshare.org:443";
var announce_uri = new Uri (uri);
// Use only one listener per notification service to keep
// the number of connections as low as possible
foreach (BaseListener listener in listeners) {
if (listener.Server.Equals (announce_uri)) {
Logger.LogInfo ("ListenerFactory", "Refered to existing listener for " + announce_uri);
// We already seem to have a listener for this server,
// refer to the existing one instead
listener.AlsoListenTo (folder_identifier);
return listener;
}
}
listeners.Add (new TcpListener (announce_uri, folder_identifier));
Logger.LogInfo ("ListenerFactory", "Issued new listener for " + announce_uri);
return listeners [listeners.Count - 1];
}
}
}