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package org.mule.transport.tcp; |
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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.construct.FlowConstruct; |
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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.lifecycle.DisposeException; |
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import org.mule.api.retry.RetryCallback; |
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import org.mule.api.retry.RetryContext; |
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import org.mule.api.transaction.Transaction; |
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import org.mule.api.transaction.TransactionException; |
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import org.mule.api.transport.Connector; |
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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.AbstractReceiverResourceWorker; |
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import org.mule.transport.ConnectException; |
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import org.mule.transport.tcp.i18n.TcpMessages; |
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import org.mule.util.monitor.Expirable; |
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|
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import java.io.BufferedInputStream; |
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import java.io.BufferedOutputStream; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.OutputStream; |
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import java.net.ServerSocket; |
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import java.net.Socket; |
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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.util.Iterator; |
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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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import edu.emory.mathcs.backport.java.util.concurrent.TimeUnit; |
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import edu.emory.mathcs.backport.java.util.concurrent.atomic.AtomicBoolean; |
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|
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|
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|
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|
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|
56 | 0 | public class TcpMessageReceiver extends AbstractMessageReceiver implements Work |
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{ |
58 | 0 | private ServerSocket serverSocket = null; |
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|
60 | 0 | protected final AtomicBoolean disposing = new AtomicBoolean(false); |
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|
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public TcpMessageReceiver(Connector connector, FlowConstruct flowConstruct, InboundEndpoint endpoint) |
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throws CreateException |
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{ |
65 | 0 | super(connector, flowConstruct, endpoint); |
66 | 0 | } |
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|
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@Override |
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protected void doConnect() throws ConnectException |
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{ |
71 | 0 | disposing.set(false); |
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|
73 | 0 | URI uri = endpoint.getEndpointURI().getUri(); |
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|
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try |
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{ |
77 | 0 | serverSocket = ((TcpConnector) connector).getServerSocket(uri); |
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} |
79 | 0 | catch (Exception e) |
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{ |
81 | 0 | throw new ConnectException(TcpMessages.failedToBindToUri(uri), e, this); |
82 | 0 | } |
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|
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try |
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{ |
86 | 0 | getWorkManager().scheduleWork(this, WorkManager.INDEFINITE, null, connector); |
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} |
88 | 0 | catch (WorkException e) |
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{ |
90 | 0 | throw new ConnectException(CoreMessages.failedToScheduleWork(), e, this); |
91 | 0 | } |
92 | 0 | } |
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|
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@Override |
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protected void doDisconnect() throws ConnectException |
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{ |
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|
98 | 0 | disposing.set(true); |
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|
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try |
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{ |
102 | 0 | if (serverSocket != null) |
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{ |
104 | 0 | if (logger.isDebugEnabled()) |
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{ |
106 | 0 | logger.debug("Closing: " + serverSocket); |
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} |
108 | 0 | serverSocket.close(); |
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} |
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} |
111 | 0 | catch (IOException e) |
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{ |
113 | 0 | logger.warn("Failed to close server socket: " + e.getMessage(), e); |
114 | 0 | } |
115 | 0 | } |
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|
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@Override |
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protected void doStart() throws MuleException |
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{ |
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|
121 | 0 | } |
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|
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@Override |
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protected void doStop() throws MuleException |
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{ |
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|
127 | 0 | } |
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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 ServerSocket getServerSocket() |
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{ |
135 | 0 | return serverSocket; |
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} |
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|
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public void run() |
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{ |
140 | 0 | while (!disposing.get()) |
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{ |
142 | 0 | if (connector.isStarted() && !disposing.get()) |
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{ |
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try |
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{ |
146 | 0 | retryTemplate.execute(new RetryCallback() |
147 | 0 | { |
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public void doWork(RetryContext context) throws Exception |
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{ |
150 | 0 | Socket socket = null; |
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try |
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{ |
153 | 0 | socket = serverSocket.accept(); |
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} |
155 | 0 | catch (Exception e) |
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{ |
157 | 0 | if (!connector.isDisposed() && !disposing.get()) |
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{ |
159 | 0 | throw new ConnectException(e, null); |
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} |
161 | 0 | } |
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|
163 | 0 | if (socket != null) |
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{ |
165 | 0 | Work work = createWork(socket); |
166 | 0 | getWorkManager().scheduleWork(work, WorkManager.INDEFINITE, null, connector); |
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} |
168 | 0 | } |
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|
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public String getWorkDescription() |
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{ |
172 | 0 | return getConnectionDescription(); |
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} |
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}, getWorkManager()); |
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} |
176 | 0 | catch (Exception e) |
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{ |
178 | 0 | getConnector().getMuleContext().getExceptionListener().handleException(e); |
179 | 0 | } |
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} |
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} |
182 | 0 | } |
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|
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public void release() |
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{ |
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|
187 | 0 | } |
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|
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@Override |
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protected void doDispose() |
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{ |
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try |
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{ |
194 | 0 | if (serverSocket != null && !serverSocket.isClosed()) |
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{ |
196 | 0 | if (logger.isDebugEnabled()) |
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{ |
198 | 0 | logger.debug("Closing: " + serverSocket); |
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} |
200 | 0 | serverSocket.close(); |
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} |
202 | 0 | serverSocket = null; |
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} |
204 | 0 | catch (Exception e) |
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{ |
206 | 0 | logger.error(new DisposeException(TcpMessages.failedToCloseSocket(), e, this)); |
207 | 0 | } |
208 | 0 | logger.info("Closed Tcp port"); |
209 | 0 | } |
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|
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protected Work createWork(Socket socket) throws IOException |
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{ |
213 | 0 | return new TcpWorker(socket, this); |
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} |
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|
216 | 0 | protected class TcpWorker extends AbstractReceiverResourceWorker implements Disposable, Expirable |
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{ |
218 | 0 | protected Socket socket = null; |
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protected TcpInputStream dataIn; |
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protected InputStream underlyingIn; |
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protected OutputStream dataOut; |
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protected TcpProtocol protocol; |
223 | 0 | protected boolean dataInWorkFinished = false; |
224 | 0 | protected Object notify = new Object(); |
225 | 0 | private boolean moreMessages = true; |
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|
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public TcpWorker(Socket socket, AbstractMessageReceiver receiver) throws IOException |
228 | 0 | { |
229 | 0 | super(socket, receiver, ((TcpConnector) connector).getTcpProtocol().createResponse(socket)); |
230 | 0 | this.socket = socket; |
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|
232 | 0 | final TcpConnector tcpConnector = ((TcpConnector) connector); |
233 | 0 | protocol = tcpConnector.getTcpProtocol(); |
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|
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try |
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{ |
237 | 0 | tcpConnector.configureSocket(TcpConnector.SERVER, socket); |
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|
239 | 0 | underlyingIn = new BufferedInputStream(socket.getInputStream()); |
240 | 0 | dataIn = new TcpInputStream(underlyingIn) |
241 | 0 | { |
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@Override |
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public void close() throws IOException |
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{ |
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|
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|
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|
248 | 0 | dataInWorkFinished = true; |
249 | 0 | moreMessages = false; |
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|
251 | 0 | synchronized (notify) |
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{ |
253 | 0 | notify.notifyAll(); |
254 | 0 | } |
255 | 0 | } |
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}; |
257 | 0 | dataOut = new BufferedOutputStream(socket.getOutputStream()); |
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} |
259 | 0 | catch (IOException e) |
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{ |
261 | 0 | logger.error("Failed to set Socket properties: " + e.getMessage(), e); |
262 | 0 | } |
263 | 0 | } |
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|
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public void expired() |
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{ |
267 | 0 | dispose(); |
268 | 0 | } |
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|
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public void dispose() |
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{ |
272 | 0 | releaseSocket(); |
273 | 0 | } |
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|
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@Override |
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public void release() |
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{ |
278 | 0 | waitForStreams(); |
279 | 0 | releaseSocket(); |
280 | 0 | } |
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|
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private void waitForStreams() |
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{ |
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|
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|
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|
287 | 0 | if (!dataInWorkFinished) |
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{ |
289 | 0 | synchronized (notify) |
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{ |
291 | 0 | if (!dataInWorkFinished) |
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{ |
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try |
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{ |
295 | 0 | notify.wait(); |
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} |
297 | 0 | catch (InterruptedException e) |
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{ |
299 | 0 | } |
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} |
301 | 0 | } |
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} |
303 | 0 | } |
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|
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|
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|
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|
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private void releaseSocket() |
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{ |
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try |
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{ |
312 | 0 | if (socket != null && !socket.isClosed()) |
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{ |
314 | 0 | if (logger.isDebugEnabled()) |
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{ |
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|
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|
318 | 0 | final SocketAddress socketAddress = socket.getLocalSocketAddress(); |
319 | 0 | if (socketAddress == null) |
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{ |
321 | 0 | logger.debug("Listener has already been closed by other process."); |
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} |
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else |
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{ |
325 | 0 | logger.debug("Closing listener: " + socketAddress); |
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} |
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} |
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|
329 | 0 | shutdownSocket(); |
330 | 0 | socket.close(); |
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} |
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} |
333 | 0 | catch (IOException e) |
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{ |
335 | 0 | logger.warn("Socket close failed with: " + e); |
336 | 0 | } |
337 | 0 | } |
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|
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protected void shutdownSocket() throws IOException |
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{ |
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try |
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{ |
343 | 0 | socket.shutdownOutput(); |
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} |
345 | 0 | catch (UnsupportedOperationException e) |
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{ |
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|
348 | 0 | } |
349 | 0 | } |
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|
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@Override |
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protected void bindTransaction(Transaction tx) throws TransactionException |
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{ |
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|
355 | 0 | } |
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|
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@Override |
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protected Object getNextMessage(Object resource) throws Exception |
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{ |
360 | 0 | long keepAliveTimeout = ((TcpConnector)connector).getKeepAliveTimeout(); |
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|
362 | 0 | Object readMsg = null; |
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try |
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{ |
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|
366 | 0 | if(keepAliveTimeout > 0) |
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{ |
368 | 0 | ((TcpConnector) connector).getKeepAliveMonitor().addExpirable(keepAliveTimeout, |
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TimeUnit.MILLISECONDS, this); |
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} |
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|
372 | 0 | readMsg = protocol.read(dataIn); |
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|
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|
375 | 0 | ((TcpConnector) connector).getKeepAliveMonitor().removeExpirable(this); |
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|
377 | 0 | if (dataIn.isStreaming()) |
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{ |
379 | 0 | moreMessages = false; |
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} |
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|
382 | 0 | return readMsg; |
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} |
384 | 0 | catch (SocketTimeoutException e) |
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{ |
386 | 0 | ((TcpConnector) connector).getKeepAliveMonitor().removeExpirable(this); |
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} |
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finally |
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{ |
390 | 0 | if (readMsg == null) |
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{ |
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|
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|
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|
395 | 0 | dataIn.close(); |
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} |
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} |
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|
399 | 0 | return null; |
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} |
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|
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@Override |
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protected boolean hasMoreMessages(Object message) |
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{ |
405 | 0 | return !socket.isClosed() && !dataInWorkFinished |
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&& !disposing.get() && moreMessages; |
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} |
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|
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@Override |
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protected void handleResults(List messages) throws Exception |
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{ |
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|
413 | 0 | if (endpoint.getExchangePattern().hasResponse()) |
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{ |
415 | 0 | for (Iterator iterator = messages.iterator(); iterator.hasNext();) |
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{ |
417 | 0 | Object o = iterator.next(); |
418 | 0 | protocol.write(dataOut, o); |
419 | 0 | dataOut.flush(); |
420 | 0 | } |
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} |
422 | 0 | } |
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|
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@Override |
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protected void preRouteMuleMessage(final MuleMessage message) throws Exception |
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{ |
427 | 0 | super.preRouteMuleMessage(message); |
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|
429 | 0 | final SocketAddress clientAddress = socket.getRemoteSocketAddress(); |
430 | 0 | if (clientAddress != null) |
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{ |
432 | 0 | message.setOutboundProperty(MuleProperties.MULE_REMOTE_CLIENT_ADDRESS, clientAddress.toString()); |
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} |
434 | 0 | } |
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} |
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|
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} |