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package org.mule.transport.udp; |
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import org.mule.DefaultMuleMessage; |
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import org.mule.api.MuleEvent; |
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import org.mule.api.MuleMessage; |
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import org.mule.api.endpoint.ImmutableEndpoint; |
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import org.mule.api.endpoint.OutboundEndpoint; |
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import org.mule.api.retry.RetryContext; |
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import org.mule.api.transformer.DataType; |
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import org.mule.transport.AbstractMessageDispatcher; |
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import org.mule.transport.NullPayload; |
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import java.io.IOException; |
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import java.net.DatagramPacket; |
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import java.net.DatagramSocket; |
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import java.net.InetAddress; |
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public class UdpMessageDispatcher extends AbstractMessageDispatcher |
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{ |
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protected final UdpConnector connector; |
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public UdpMessageDispatcher(OutboundEndpoint endpoint) |
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{ |
35 | 0 | super(endpoint); |
36 | 0 | this.connector = (UdpConnector)endpoint.getConnector(); |
37 | 0 | } |
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@Override |
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public RetryContext validateConnection(RetryContext retryContext) |
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{ |
42 | 0 | DatagramSocket socket = null; |
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try |
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{ |
45 | 0 | socket = connector.getSocket(endpoint); |
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|
47 | 0 | retryContext.setOk(); |
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} |
49 | 0 | catch (Exception ex) |
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{ |
51 | 0 | retryContext.setFailed(ex); |
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} |
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finally |
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{ |
55 | 0 | if (socket != null) |
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{ |
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try |
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{ |
59 | 0 | connector.releaseSocket(socket, endpoint); |
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} |
61 | 0 | catch (Exception e) |
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{ |
63 | 0 | if (logger.isDebugEnabled()) |
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{ |
65 | 0 | logger.debug("Failed to release a socket " + socket, e); |
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} |
67 | 0 | } |
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} |
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} |
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|
71 | 0 | return retryContext; |
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} |
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@Override |
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protected void doConnect() throws Exception |
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{ |
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80 | 0 | } |
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@Override |
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protected void doDisconnect() throws Exception |
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{ |
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86 | 0 | } |
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@Override |
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protected synchronized void doDispatch(MuleEvent event) throws Exception |
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{ |
92 | 0 | ImmutableEndpoint ep = event.getEndpoint(); |
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|
94 | 0 | DatagramSocket socket = connector.getSocket(ep); |
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try |
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{ |
97 | 0 | byte[] payload = event.transformMessage(DataType.BYTE_ARRAY_DATA_TYPE); |
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|
99 | 0 | int port = ep.getEndpointURI().getPort(); |
100 | 0 | InetAddress inetAddress = null; |
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|
102 | 0 | if("null".equalsIgnoreCase(ep.getEndpointURI().getHost())) |
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{ |
104 | 0 | inetAddress = InetAddress.getLocalHost(); |
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} |
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else |
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{ |
108 | 0 | inetAddress = InetAddress.getByName(ep.getEndpointURI().getHost()); |
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} |
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|
111 | 0 | write(socket, payload, port, inetAddress); |
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} |
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finally |
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{ |
115 | 0 | connector.releaseSocket(socket, ep); |
116 | 0 | } |
117 | 0 | } |
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protected void write(DatagramSocket socket, byte[] data, int port, InetAddress inetAddress) throws IOException |
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{ |
121 | 0 | DatagramPacket packet = new DatagramPacket(data, data.length); |
122 | 0 | if (port >= 0) |
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{ |
124 | 0 | packet.setPort(port); |
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} |
126 | 0 | packet.setAddress(inetAddress); |
127 | 0 | socket.send(packet); |
128 | 0 | } |
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@Override |
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protected synchronized MuleMessage doSend(MuleEvent event) throws Exception |
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{ |
133 | 0 | doDispatch(event); |
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|
135 | 0 | if (event.getEndpoint().getExchangePattern().hasResponse()) |
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{ |
137 | 0 | DatagramSocket socket = connector.getSocket(event.getEndpoint()); |
138 | 0 | DatagramPacket result = receive(socket, event.getTimeout()); |
139 | 0 | if (result == null) |
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{ |
141 | 0 | return createNullMuleMessage(); |
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} |
143 | 0 | return createMuleMessage(result, event.getMessage(), endpoint.getEncoding()); |
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} |
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else |
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{ |
147 | 0 | return new DefaultMuleMessage(NullPayload.getInstance(), connector.getMuleContext()); |
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} |
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} |
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private DatagramPacket receive(DatagramSocket socket, int timeout) throws IOException |
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{ |
153 | 0 | int origTimeout = socket.getSoTimeout(); |
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try |
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{ |
156 | 0 | DatagramPacket packet = new DatagramPacket(new byte[connector.getReceiveBufferSize()], |
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connector.getReceiveBufferSize()); |
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|
159 | 0 | if(timeout > 0 && timeout != socket.getSoTimeout()) |
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{ |
161 | 0 | socket.setSoTimeout(timeout); |
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} |
163 | 0 | socket.receive(packet); |
164 | 0 | return packet; |
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} |
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finally |
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{ |
168 | 0 | if(socket.getSoTimeout()!= origTimeout) |
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{ |
170 | 0 | socket.setSoTimeout(origTimeout); |
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} |
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} |
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} |
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@Override |
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protected void doDispose() |
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{ |
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|
179 | 0 | } |
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} |