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1   /*
2    * $Id: MulticastSocketFactory.java 10489 2008-01-23 17:53:38Z dfeist $
3    * --------------------------------------------------------------------------------------
4    * Copyright (c) MuleSource, Inc.  All rights reserved.  http://www.mulesource.com
5    *
6    * The software in this package is published under the terms of the CPAL v1.0
7    * license, a copy of which has been included with this distribution in the
8    * LICENSE.txt file.
9    */
10  package org.mule.transport.multicast;
11  
12  import org.mule.api.endpoint.ImmutableEndpoint;
13  import org.mule.api.transport.Connector;
14  import org.mule.transport.udp.UdpSocketFactory;
15  
16  import java.io.IOException;
17  import java.net.DatagramSocket;
18  import java.net.InetAddress;
19  import java.net.MulticastSocket;
20  
21  /**
22   * TODO
23   */
24  public class MulticastSocketFactory extends UdpSocketFactory
25  {
26  
27      public Object makeObject(Object key) throws Exception
28      {
29          ImmutableEndpoint ep = (ImmutableEndpoint)key;
30          MulticastSocket socket = (MulticastSocket)super.makeObject(key);
31          socket.setLoopbackMode(((MulticastConnector)ep.getConnector()).isLoopback());
32          int ttl  = ((MulticastConnector)ep.getConnector()).getTimeToLive();
33          if(ttl!= Connector.INT_VALUE_NOT_SET)
34          {
35              socket.setTimeToLive(ttl);
36          }
37          return socket;
38      }
39  
40  
41      //@java.lang.Override
42      public void destroyObject(Object key, Object object) throws Exception
43      {
44          ImmutableEndpoint ep = (ImmutableEndpoint)key;
45          InetAddress inetAddress;
46          String host = ep.getEndpointURI().getHost();
47          if("null".equalsIgnoreCase(host))
48          {
49              inetAddress = InetAddress.getLocalHost();
50          }
51          else
52          {
53              inetAddress = InetAddress.getByName(host);
54          }
55          MulticastSocket socket = (MulticastSocket)object;
56          socket.leaveGroup(inetAddress);
57          super.destroyObject(key, object);
58      }
59  
60      protected DatagramSocket createSocket() throws IOException
61      {
62          return new MulticastSocket();
63      }
64  
65      protected DatagramSocket createSocket(int port) throws IOException
66      {
67          throw new IllegalArgumentException("A group host or IP address is required");
68      }
69  
70      protected DatagramSocket createSocket(int port, InetAddress inetAddress) throws IOException
71      {
72          MulticastSocket socket = new MulticastSocket(port);
73          socket.joinGroup(inetAddress);
74          return socket;
75      }
76  }