1 | |
|
2 | |
|
3 | |
|
4 | |
|
5 | |
|
6 | |
|
7 | |
|
8 | |
|
9 | |
|
10 | |
|
11 | |
package org.mule.providers.udp; |
12 | |
|
13 | |
import org.mule.impl.MuleMessage; |
14 | |
import org.mule.providers.AbstractMessageDispatcher; |
15 | |
import org.mule.umo.UMOEvent; |
16 | |
import org.mule.umo.UMOMessage; |
17 | |
import org.mule.umo.endpoint.UMOImmutableEndpoint; |
18 | |
|
19 | |
import java.io.IOException; |
20 | |
import java.net.DatagramPacket; |
21 | |
import java.net.DatagramSocket; |
22 | |
import java.net.InetAddress; |
23 | |
import java.util.Map; |
24 | |
|
25 | |
|
26 | |
|
27 | |
|
28 | |
|
29 | |
|
30 | |
public class UdpMessageDispatcher extends AbstractMessageDispatcher |
31 | |
{ |
32 | |
protected final UdpConnector connector; |
33 | |
|
34 | |
public UdpMessageDispatcher(UMOImmutableEndpoint endpoint) |
35 | |
{ |
36 | 0 | super(endpoint); |
37 | 0 | this.connector = (UdpConnector)endpoint.getConnector(); |
38 | 0 | } |
39 | |
|
40 | |
protected void doConnect() throws Exception |
41 | |
{ |
42 | |
|
43 | 0 | DatagramSocket socket = connector.getSocket(endpoint); |
44 | 0 | connector.releaseSocket(socket, endpoint); |
45 | 0 | } |
46 | |
|
47 | |
protected void doDisconnect() throws Exception |
48 | |
{ |
49 | |
|
50 | 0 | } |
51 | |
|
52 | |
|
53 | |
protected synchronized void doDispatch(UMOEvent event) throws Exception |
54 | |
{ |
55 | 0 | UMOImmutableEndpoint ep = event.getEndpoint(); |
56 | |
|
57 | 0 | DatagramSocket socket = connector.getSocket(ep); |
58 | |
try |
59 | |
{ |
60 | 0 | byte[] payload = event.getTransformedMessageAsBytes(); |
61 | |
|
62 | 0 | int port = ep.getEndpointURI().getPort(); |
63 | 0 | InetAddress inetAddress = null; |
64 | |
|
65 | 0 | if("null".equalsIgnoreCase(ep.getEndpointURI().getHost())) |
66 | |
{ |
67 | 0 | inetAddress = InetAddress.getLocalHost(); |
68 | |
} |
69 | |
else |
70 | |
{ |
71 | 0 | inetAddress = InetAddress.getByName(ep.getEndpointURI().getHost()); |
72 | |
} |
73 | |
|
74 | 0 | write(socket, payload, port, inetAddress); |
75 | |
} |
76 | |
finally |
77 | |
{ |
78 | 0 | connector.releaseSocket(socket, ep); |
79 | 0 | } |
80 | 0 | } |
81 | |
|
82 | |
protected void write(DatagramSocket socket, byte[] data, int port, InetAddress inetAddress) throws IOException |
83 | |
{ |
84 | 0 | DatagramPacket packet = new DatagramPacket(data, data.length); |
85 | 0 | if (port >= 0) |
86 | |
{ |
87 | 0 | packet.setPort(port); |
88 | |
} |
89 | 0 | packet.setAddress(inetAddress); |
90 | 0 | socket.send(packet); |
91 | 0 | } |
92 | |
|
93 | |
protected synchronized UMOMessage doSend(UMOEvent event) throws Exception |
94 | |
{ |
95 | 0 | doDispatch(event); |
96 | |
|
97 | 0 | if (event.getEndpoint().isRemoteSync()) |
98 | |
{ |
99 | 0 | DatagramSocket socket = connector.getSocket(event.getEndpoint()); |
100 | 0 | DatagramPacket result = receive(socket, event.getTimeout()); |
101 | 0 | if (result == null) |
102 | |
{ |
103 | 0 | return null; |
104 | |
} |
105 | 0 | return new MuleMessage(connector.getMessageAdapter(result), event.getMessage()); |
106 | |
} |
107 | |
else |
108 | |
{ |
109 | 0 | return event.getMessage(); |
110 | |
} |
111 | |
} |
112 | |
|
113 | |
private DatagramPacket receive(DatagramSocket socket, int timeout) throws IOException |
114 | |
{ |
115 | 0 | int origTimeout = socket.getSoTimeout(); |
116 | |
try |
117 | |
{ |
118 | 0 | DatagramPacket packet = new DatagramPacket(new byte[connector.getReceiveBufferSize()], |
119 | |
connector.getReceiveBufferSize()); |
120 | |
|
121 | 0 | if(timeout > 0 && timeout != socket.getSoTimeout()) |
122 | |
{ |
123 | 0 | socket.setSoTimeout(timeout); |
124 | |
} |
125 | 0 | socket.receive(packet); |
126 | 0 | return packet; |
127 | |
} |
128 | |
finally |
129 | |
{ |
130 | 0 | if(socket.getSoTimeout()!= origTimeout) |
131 | |
{ |
132 | 0 | socket.setSoTimeout(origTimeout); |
133 | |
} |
134 | |
} |
135 | |
} |
136 | |
|
137 | |
|
138 | |
|
139 | |
|
140 | |
|
141 | |
|
142 | |
|
143 | |
|
144 | |
|
145 | |
|
146 | |
|
147 | |
|
148 | |
protected UMOMessage doReceive(long timeout) throws Exception |
149 | |
{ |
150 | 0 | DatagramSocket socket = connector.getSocket(endpoint); |
151 | 0 | DatagramPacket result = receive(socket, (int)timeout); |
152 | 0 | if (result == null) |
153 | |
{ |
154 | 0 | return null; |
155 | |
} |
156 | 0 | return new MuleMessage(connector.getMessageAdapter(result), (Map)null); |
157 | |
} |
158 | |
|
159 | |
protected void doDispose() |
160 | |
{ |
161 | |
|
162 | 0 | } |
163 | |
} |