5 // Atsushi Enomoto <atsushi@ximian.com>
7 // Copyright (C) 2005,2009 Novell, Inc. http://www.novell.com
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 using System.Collections.Generic;
30 using System.Collections.ObjectModel;
32 using System.Net.Sockets;
33 using System.ServiceModel.Channels;
35 namespace System.ServiceModel
37 public abstract class PeerNode : IOnlineStatus
39 internal PeerNode (string meshId, int port)
45 public event EventHandler Offline;
46 public event EventHandler Online;
48 public bool IsOnline { get; internal set; }
50 internal string MeshId { get; private set; }
52 internal int NodeId { get; set; }
54 internal bool IsOpen {
55 get { return RegisteredId != null; }
58 internal object RegisteredId { get; set; }
60 public int Port { get; private set; }
62 public abstract PeerMessagePropagationFilter MessagePropagationFilter { get; set; }
64 internal abstract TcpListener GetTcpListener ();
66 public void RefreshConnection ()
70 public override string ToString ()
72 return String.Format ("MeshId: {0}, Node ID: {1}, Online: {2}, Opened:{3}, Port: {4}", MeshId, NodeId, IsOnline, IsOpen, Port);
75 internal void SetOnline ()
79 Online (this, EventArgs.Empty);
82 internal void SetOffline ()
86 Offline (this, EventArgs.Empty);
90 internal class PeerNodeImpl : PeerNode
94 public int Id { get; set; }
95 public PeerNodeAddress Address { get; set; }
98 internal PeerNodeImpl (EndpointAddress remoteAddress, IPAddress fixedListenAddress, int port)
99 : base (remoteAddress.Uri.Host, port)
101 this.listen_address = fixedListenAddress ?? IPAddress.Any;
102 this.remote_address = remoteAddress;
105 EndpointAddress remote_address;
106 IPAddress listen_address;
109 public override PeerMessagePropagationFilter MessagePropagationFilter { get; set; }
111 internal override TcpListener GetTcpListener ()
114 var rnd = Port != 0 ? null : new Random ();
115 TcpListener listener = null;
118 p = rnd.Next (50000, 51000); // This range is picked up sorta randomly.
119 listener = new TcpListener (listen_address, p);
123 } catch (SocketException) {
129 if (listener == null)
130 throw new InvalidOperationException (String.Format ("The specified endpoint is available for a peer node to listen. IP address: {0}, Port {1}", listen_address, Port));