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package org.mule.providers.udp; |
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import org.mule.config.MuleProperties; |
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import org.mule.config.i18n.CoreMessages; |
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import org.mule.impl.MuleMessage; |
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import org.mule.providers.AbstractMessageReceiver; |
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import org.mule.providers.udp.i18n.UdpMessages; |
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import org.mule.umo.UMOComponent; |
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import org.mule.umo.UMOException; |
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import org.mule.umo.UMOMessage; |
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import org.mule.umo.endpoint.UMOEndpoint; |
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import org.mule.umo.lifecycle.Disposable; |
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import org.mule.umo.lifecycle.InitialisationException; |
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import org.mule.umo.provider.UMOConnector; |
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import org.mule.umo.provider.UMOMessageAdapter; |
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import org.mule.umo.transformer.UMOTransformer; |
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|
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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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import java.net.SocketAddress; |
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import java.net.SocketTimeoutException; |
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import java.net.URI; |
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import java.net.UnknownHostException; |
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|
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import javax.resource.spi.work.Work; |
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import javax.resource.spi.work.WorkException; |
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import javax.resource.spi.work.WorkManager; |
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|
44 | 4004 | public class UdpMessageReceiver extends AbstractMessageReceiver implements Work |
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{ |
46 | 10 | protected DatagramSocket socket = null; |
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protected InetAddress inetAddress; |
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protected int bufferSize; |
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private URI uri; |
50 | 10 | protected UMOTransformer responseTransformer = null; |
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|
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public UdpMessageReceiver(UMOConnector connector, UMOComponent component, UMOEndpoint endpoint) |
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throws InitialisationException |
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{ |
55 | 10 | super(connector, component, endpoint); |
56 | 10 | bufferSize = ((UdpConnector)connector).getReceiveBufferSize(); |
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|
58 | 10 | uri = endpoint.getEndpointURI().getUri(); |
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|
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try |
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{ |
62 | 10 | if(!"null".equalsIgnoreCase(uri.getHost())) |
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{ |
64 | 8 | inetAddress = InetAddress.getByName(uri.getHost()); |
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} |
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} |
67 | 0 | catch (UnknownHostException e) |
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{ |
69 | 0 | throw new InitialisationException(UdpMessages.failedToLocateHost(uri), e, this); |
70 | 10 | } |
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|
72 | 10 | responseTransformer = getResponseTransformer(); |
73 | 10 | } |
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|
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protected void doConnect() throws Exception |
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{ |
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try |
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{ |
79 | 4 | socket = ((UdpConnector)connector).getSocket(endpoint); |
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} |
81 | 0 | catch (Exception e) |
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{ |
83 | 0 | throw new InitialisationException(UdpMessages.failedToBind(uri), e, this); |
84 | 4 | } |
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|
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try |
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{ |
88 | 4 | getWorkManager().scheduleWork(this, WorkManager.INDEFINITE, null, connector); |
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} |
90 | 0 | catch (WorkException e) |
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{ |
92 | 0 | throw new InitialisationException(CoreMessages.failedToScheduleWork(), e, this); |
93 | 4 | } |
94 | 4 | } |
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|
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protected void doDisconnect() throws Exception |
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{ |
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|
99 | 4 | disposing.set(true); |
100 | 4 | if (socket != null) |
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{ |
102 | 4 | socket.close(); |
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} |
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|
105 | 4 | } |
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|
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protected void doStart() throws UMOException |
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{ |
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|
110 | 4 | } |
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|
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protected void doStop() throws UMOException |
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{ |
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|
115 | 4 | } |
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|
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protected UMOTransformer getResponseTransformer() throws InitialisationException |
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{ |
119 | 10 | UMOTransformer transformer = component.getDescriptor().getResponseTransformer(); |
120 | 10 | if (transformer == null) |
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{ |
122 | 10 | return connector.getDefaultResponseTransformer(); |
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} |
124 | 0 | return transformer; |
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} |
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|
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protected DatagramSocket createSocket(URI uri, InetAddress inetAddress) throws IOException |
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{ |
129 | 0 | return new DatagramSocket(uri.getPort(), inetAddress); |
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} |
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|
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|
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|
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|
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public DatagramSocket getSocket() |
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{ |
137 | 0 | return socket; |
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} |
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|
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protected DatagramPacket createPacket() |
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{ |
142 | 2006 | DatagramPacket packet = new DatagramPacket(new byte[bufferSize], bufferSize); |
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|
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|
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|
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|
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|
148 | 2006 | return packet; |
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} |
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|
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public void run() |
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{ |
153 | 2010 | while (!disposing.get()) |
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{ |
155 | 2006 | if (connector.isStarted()) |
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{ |
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|
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try |
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{ |
160 | 2006 | DatagramPacket packet = createPacket(); |
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try |
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{ |
163 | 2006 | socket.receive(packet); |
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|
165 | 2002 | if (logger.isTraceEnabled()) |
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{ |
167 | 0 | logger.trace("Received packet on: " + uri); |
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} |
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|
170 | 2002 | Work work = createWork(packet); |
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try |
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{ |
173 | 2002 | getWorkManager().scheduleWork(work, WorkManager.INDEFINITE, null, connector); |
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} |
175 | 0 | catch (WorkException e) |
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{ |
177 | 0 | logger.error("Udp receiver interrupted: " + e.getMessage(), e); |
178 | 2002 | } |
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} |
180 | 0 | catch (SocketTimeoutException e) |
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{ |
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|
183 | 2002 | } |
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|
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} |
186 | 4 | catch (Exception e) |
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{ |
188 | 4 | if (!connector.isDisposed() && !disposing.get()) |
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{ |
190 | 0 | logger.debug("Accept failed on socket: " + e, e); |
191 | 0 | handleException(e); |
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} |
193 | 2006 | } |
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} |
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} |
196 | 4 | } |
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|
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public void release() |
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{ |
200 | 0 | dispose(); |
201 | 0 | } |
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|
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protected void doDispose() |
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{ |
205 | 10 | if (socket != null && !socket.isClosed()) |
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{ |
207 | 0 | logger.debug("Closing Udp connection: " + uri); |
208 | 0 | socket.close(); |
209 | 0 | logger.info("Closed Udp connection: " + uri); |
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} |
211 | 10 | } |
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|
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protected Work createWork(DatagramPacket packet) throws IOException |
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{ |
215 | 2002 | return new UdpWorker(new DatagramSocket(0), packet); |
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} |
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|
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protected class UdpWorker implements Work, Disposable |
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{ |
220 | 2002 | private DatagramSocket socket = null; |
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private DatagramPacket packet; |
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|
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public UdpWorker(DatagramSocket socket, DatagramPacket packet) |
224 | 2002 | { |
225 | 2002 | this.socket = socket; |
226 | 2002 | this.packet = packet; |
227 | 2002 | } |
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|
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public void release() |
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{ |
231 | 0 | dispose(); |
232 | 0 | } |
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|
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public void dispose() |
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{ |
236 | 2002 | if (socket != null && !socket.isClosed()) |
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{ |
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try |
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{ |
240 | 2002 | socket.close(); |
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} |
242 | 0 | catch (Exception e) |
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{ |
244 | 0 | logger.error("Socket close failed", e); |
245 | 2002 | } |
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} |
247 | 2002 | socket = null; |
248 | 2002 | } |
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|
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|
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|
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|
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public void run() |
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{ |
255 | 2002 | UMOMessage returnMessage = null; |
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try |
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{ |
258 | 2002 | UMOMessageAdapter adapter = connector.getMessageAdapter(packet); |
259 | 2002 | final SocketAddress clientAddress = socket.getRemoteSocketAddress(); |
260 | 2002 | if (clientAddress != null) |
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{ |
262 | 0 | adapter.setProperty(MuleProperties.MULE_REMOTE_CLIENT_ADDRESS, clientAddress); |
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} |
264 | 2002 | returnMessage = routeMessage(new MuleMessage(adapter), endpoint.isSynchronous()); |
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|
266 | 2002 | if (returnMessage != null) |
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{ |
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byte[] data; |
269 | 0 | if (responseTransformer != null) |
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{ |
271 | 0 | Object response = responseTransformer.transform(returnMessage.getPayload()); |
272 | 0 | if (response instanceof byte[]) |
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{ |
274 | 0 | data = (byte[])response; |
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} |
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else |
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{ |
278 | 0 | data = response.toString().getBytes(); |
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} |
280 | 0 | } |
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else |
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{ |
283 | 0 | data = returnMessage.getPayloadAsBytes(); |
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} |
285 | 0 | DatagramPacket result = new DatagramPacket(data, data.length, packet.getAddress(), |
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packet.getPort()); |
287 | 0 | socket.send(result); |
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} |
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} |
290 | 0 | catch (Exception e) |
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{ |
292 | 0 | if (!disposing.get()) |
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{ |
294 | 0 | handleException(e); |
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} |
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} |
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finally |
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{ |
299 | 2002 | dispose(); |
300 | 2002 | } |
301 | 2002 | } |
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} |
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} |