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package org.mule.transport.udp; |
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|
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import org.mule.DefaultMuleMessage; |
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import org.mule.api.MuleException; |
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import org.mule.api.MuleMessage; |
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import org.mule.api.config.MuleProperties; |
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import org.mule.api.endpoint.InboundEndpoint; |
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import org.mule.api.lifecycle.CreateException; |
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import org.mule.api.lifecycle.Disposable; |
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import org.mule.api.service.Service; |
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import org.mule.api.transport.Connector; |
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import org.mule.api.transport.MessageAdapter; |
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import org.mule.config.i18n.CoreMessages; |
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import org.mule.transport.AbstractMessageReceiver; |
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import org.mule.transport.ConnectException; |
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import org.mule.transport.udp.i18n.UdpMessages; |
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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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import java.util.List; |
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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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|
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|
43 | 6000 | public class UdpMessageReceiver extends AbstractMessageReceiver implements Work |
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{ |
45 | 8 | 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; |
49 | 8 | protected List responseTransformers = null; |
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|
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public UdpMessageReceiver(Connector connector, Service service, InboundEndpoint endpoint) |
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throws CreateException |
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{ |
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|
55 | 8 | super(connector, service, endpoint); |
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|
57 | 8 | bufferSize = ((UdpConnector) connector).getReceiveBufferSize(); |
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|
59 | 8 | uri = endpoint.getEndpointURI().getUri(); |
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|
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try |
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{ |
63 | 8 | if (!"null".equalsIgnoreCase(uri.getHost())) |
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{ |
65 | 8 | inetAddress = InetAddress.getByName(uri.getHost()); |
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} |
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} |
68 | 0 | catch (UnknownHostException e) |
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{ |
70 | 0 | throw new CreateException(UdpMessages.failedToLocateHost(uri), e, this); |
71 | 8 | } |
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|
73 | 8 | responseTransformers = getResponseTransformers(); |
74 | 8 | } |
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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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{ |
80 | 2 | socket = ((UdpConnector) connector).getSocket(endpoint); |
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} |
82 | 0 | catch (Exception e) |
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{ |
84 | 0 | throw new ConnectException(UdpMessages.failedToBind(uri), e, this); |
85 | 2 | } |
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|
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try |
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{ |
89 | 2 | getWorkManager().scheduleWork(this, WorkManager.INDEFINITE, null, connector); |
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} |
91 | 0 | catch (WorkException e) |
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{ |
93 | 0 | throw new ConnectException(CoreMessages.failedToScheduleWork(), e, this); |
94 | 2 | } |
95 | 2 | } |
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|
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protected void doDisconnect() throws Exception |
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{ |
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|
100 | 2 | disposing.set(true); |
101 | 2 | if (socket != null) |
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{ |
103 | 2 | socket.close(); |
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} |
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|
106 | 2 | } |
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|
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protected void doStart() throws MuleException |
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{ |
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|
111 | 2 | } |
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|
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protected void doStop() throws MuleException |
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{ |
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|
116 | 2 | } |
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|
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protected List getResponseTransformers() |
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{ |
120 | 8 | List transformers = endpoint.getResponseTransformers(); |
121 | 8 | if (transformers == null) |
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{ |
123 | 0 | return connector.getDefaultResponseTransformers(); |
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} |
125 | 8 | return transformers; |
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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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{ |
130 | 0 | return new DatagramSocket(uri.getPort(), inetAddress); |
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} |
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|
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|
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public DatagramSocket getSocket() |
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{ |
136 | 0 | return socket; |
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} |
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|
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protected DatagramPacket createPacket() |
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{ |
141 | 3002 | 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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|
147 | 3002 | return packet; |
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} |
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|
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public void run() |
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{ |
152 | 3004 | while (!disposing.get()) |
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{ |
154 | 3002 | if (connector.isStarted()) |
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{ |
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|
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try |
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{ |
159 | 3002 | DatagramPacket packet = createPacket(); |
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try |
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{ |
162 | 3002 | if (logger.isDebugEnabled()) |
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{ |
164 | 0 | logger.debug("Receiving packet on " + uri); |
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} |
166 | 3002 | socket.receive(packet); |
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|
168 | 3000 | if (logger.isTraceEnabled()) |
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{ |
170 | 0 | logger.trace("Received packet on: " + uri); |
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} |
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|
173 | 3000 | Work work = createWork(packet); |
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try |
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{ |
176 | 3000 | getWorkManager().scheduleWork(work, WorkManager.INDEFINITE, null, connector); |
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} |
178 | 0 | catch (WorkException e) |
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{ |
180 | 0 | logger.error("Udp receiver interrupted: " + e.getMessage(), e); |
181 | 3000 | } |
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} |
183 | 0 | catch (SocketTimeoutException e) |
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{ |
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|
186 | 3000 | } |
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|
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} |
189 | 2 | catch (Exception e) |
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{ |
191 | 2 | if (!connector.isDisposed() && !disposing.get()) |
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{ |
193 | 0 | logger.debug("Accept failed on socket: " + e, e); |
194 | 0 | handleException(e); |
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} |
196 | 3002 | } |
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} |
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} |
199 | 2 | } |
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|
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public void release() |
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{ |
203 | 0 | dispose(); |
204 | 0 | } |
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|
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protected void doDispose() |
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{ |
208 | 12 | if (socket != null && !socket.isClosed()) |
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{ |
210 | 0 | logger.debug("Closing Udp connection: " + uri); |
211 | 0 | socket.close(); |
212 | 0 | logger.info("Closed Udp connection: " + uri); |
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} |
214 | 12 | } |
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|
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protected Work createWork(DatagramPacket packet) throws IOException |
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{ |
218 | 3000 | 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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{ |
223 | 3000 | 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) |
227 | 3000 | { |
228 | 3000 | this.socket = socket; |
229 | 3000 | this.packet = packet; |
230 | 3000 | } |
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|
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public void release() |
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{ |
234 | 0 | dispose(); |
235 | 0 | } |
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|
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public void dispose() |
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{ |
239 | 3000 | if (socket != null && !socket.isClosed()) |
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{ |
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try |
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{ |
243 | 3000 | socket.close(); |
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} |
245 | 0 | catch (Exception e) |
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{ |
247 | 0 | logger.error("Socket close failed", e); |
248 | 3000 | } |
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} |
250 | 3000 | socket = null; |
251 | 3000 | } |
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|
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|
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public void run() |
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{ |
256 | 3000 | MuleMessage returnMessage = null; |
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try |
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{ |
259 | 3000 | MessageAdapter adapter = connector.getMessageAdapter(packet); |
260 | 3000 | final SocketAddress clientAddress = socket.getRemoteSocketAddress(); |
261 | 3000 | if (clientAddress != null) |
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{ |
263 | 0 | adapter.setProperty(MuleProperties.MULE_REMOTE_CLIENT_ADDRESS, clientAddress); |
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} |
265 | 2999 | returnMessage = routeMessage(new DefaultMuleMessage(adapter), endpoint.isSynchronous()); |
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|
267 | 2999 | if (returnMessage != null) |
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{ |
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byte[] data; |
270 | 0 | if (responseTransformers != null) |
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{ |
272 | 0 | returnMessage.applyTransformers(responseTransformers); |
273 | 0 | Object response = returnMessage.getPayload(); |
274 | 0 | if (response instanceof byte[]) |
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{ |
276 | 0 | data = (byte[]) response; |
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} |
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else |
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{ |
280 | 0 | data = response.toString().getBytes(); |
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} |
282 | 0 | } |
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else |
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{ |
285 | 0 | data = returnMessage.getPayloadAsBytes(); |
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} |
287 | 0 | DatagramPacket result = new DatagramPacket(data, data.length, packet.getAddress(), |
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packet.getPort()); |
289 | 0 | socket.send(result); |
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} |
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} |
292 | 1 | catch (Exception e) |
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{ |
294 | 1 | if (!disposing.get()) |
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{ |
296 | 1 | handleException(e); |
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} |
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} |
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finally |
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{ |
301 | 3000 | dispose(); |
302 | 3000 | } |
303 | 3000 | } |
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} |
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} |