diff options
Diffstat (limited to 'jurt/com/sun/star/lib/connections/socket/SocketConnection.java')
| -rw-r--r-- | jurt/com/sun/star/lib/connections/socket/SocketConnection.java | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/jurt/com/sun/star/lib/connections/socket/SocketConnection.java b/jurt/com/sun/star/lib/connections/socket/SocketConnection.java new file mode 100644 index 000000000000..8512bdb49fe1 --- /dev/null +++ b/jurt/com/sun/star/lib/connections/socket/SocketConnection.java @@ -0,0 +1,252 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ +package com.sun.star.lib.connections.socket; + + +import java.io.BufferedInputStream; +import java.io.BufferedOutputStream; +import java.io.InputStream; +import java.io.IOException; +import java.io.OutputStream; + +import java.net.Socket; + +import java.util.Enumeration; +import java.util.Vector; + + +import com.sun.star.io.XStreamListener; + +import com.sun.star.connection.XConnection; +import com.sun.star.connection.XConnectionBroadcaster; + +/** + * The SocketConnection implements the <code>XConnection</code> interface + * and is uses by the <code>SocketConnector</code> and the <code>SocketAcceptor</code>. + * This class is not part of the provided <code>api</code>. + * <p> + * @version $Revision: 1.6 $ $ $Date: 2008-04-11 11:14:31 $ + * @author Kay Ramme + * @see com.sun.star.comp.connections.SocketAcceptor + * @see com.sun.star.comp.connections.SocketConnector + * @see com.sun.star.connections.XConnection + * @since UDK1.0 + */ +public class SocketConnection implements XConnection, XConnectionBroadcaster { + /** + * When set to true, enables various debugging output. + */ + static public final boolean DEBUG = false; + + protected String _description; + protected Socket _socket; + protected InputStream _inputStream; + protected OutputStream _outputStream; + protected Vector _listeners; + protected boolean _firstRead; + + /** + * Constructs a new <code>SocketConnection</code>. + * <p> + * @param description the description of the connection + * @param socket the socket of the connection + */ + public SocketConnection(String description, Socket socket) throws IOException { + if (DEBUG) System.err.println("##### " + getClass().getName() + " - instantiated " + description + " " + socket); + + _description = description + + ",localHost=" + socket.getLocalAddress().getHostName() + + ",localPort=" + socket.getLocalPort() + + ",peerHost=" + socket.getInetAddress().getHostName() + + ",peerPort=" + socket.getPort(); + + _socket = socket; + _inputStream = new BufferedInputStream(socket.getInputStream()); + _outputStream = new BufferedOutputStream(socket.getOutputStream()); + + _listeners = new Vector(); + _firstRead = true; + } + + + + + public void addStreamListener(XStreamListener aListener ) throws com.sun.star.uno.RuntimeException { + _listeners.addElement(aListener); + } + + public void removeStreamListener(XStreamListener aListener ) throws com.sun.star.uno.RuntimeException { + _listeners.removeElement(aListener); + } + + private void notifyListeners_open() { + Enumeration elements = _listeners.elements(); + while(elements.hasMoreElements()) { + XStreamListener xStreamListener = (XStreamListener)elements.nextElement(); + xStreamListener.started(); + } + } + + private void notifyListeners_close() { + Enumeration elements = _listeners.elements(); + while(elements.hasMoreElements()) { + XStreamListener xStreamListener = (XStreamListener)elements.nextElement(); + xStreamListener.closed(); + } + } + + private void notifyListeners_error(com.sun.star.uno.Exception exception) { + Enumeration elements = _listeners.elements(); + while(elements.hasMoreElements()) { + XStreamListener xStreamListener = (XStreamListener)elements.nextElement(); + xStreamListener.error(exception); + } + } + + + /** + * Read the required number of bytes. + * <p> + * @return the number of bytes read + * @param aReadBytes the outparameter, where the bytes have to be placed + * @param nBytesToRead the number of bytes to read + * @see com.sun.star.connections.XConnection#read + */ + public int read(/*OUT*/byte[][] bytes, int nBytesToRead) throws com.sun.star.io.IOException, com.sun.star.uno.RuntimeException { + if(_firstRead) { + _firstRead = false; + + notifyListeners_open(); + } + + String errMessage = null; + + int read_bytes = 0; + bytes[0] = new byte[nBytesToRead]; + + try { + int count = 0; + + do { + count = _inputStream.read(bytes[0], read_bytes, nBytesToRead - read_bytes); + if(count == -1) + errMessage = "EOF reached - " + getDescription(); + + read_bytes += count; + } + while(read_bytes >= 0 && read_bytes < nBytesToRead && count >= 0); + } + catch(IOException ioException) { + if(DEBUG) { + System.err.println("##### " + getClass().getName() + ".read - exception occurred:" + ioException); + ioException.printStackTrace(); + } + + errMessage = ioException.toString(); + } + + if(errMessage != null) { + com.sun.star.io.IOException unoIOException = new com.sun.star.io.IOException(errMessage); + notifyListeners_error(unoIOException); + + throw unoIOException; + } + + if (DEBUG) System.err.println("##### " + getClass().getName() + " - read byte:" + read_bytes + " " + bytes[0]); + + return read_bytes; + } + + /** + * Write bytes. + * <p> + * @param aData the bytes to write + * @see com.sun.star.connections.XConnection#write + */ + public void write(byte aData[]) throws com.sun.star.io.IOException, com.sun.star.uno.RuntimeException { + try { + _outputStream.write(aData); + } + catch(IOException ioException) { + com.sun.star.io.IOException unoIOException = new com.sun.star.io.IOException(ioException.toString()); + notifyListeners_error(unoIOException); + + throw unoIOException; + } + + if (DEBUG) System.err.println("##### " + getClass().getName() + " - written bytes:" + aData + " " + aData.length); + } + + /** + * Flushes the buffer. + * <p> + * @see com.sun.star.connections.XConnection#flush + */ + public void flush() throws com.sun.star.io.IOException, com.sun.star.uno.RuntimeException { + try { + _outputStream.flush(); + } + catch(IOException ioException) { + com.sun.star.io.IOException unoIOException = new com.sun.star.io.IOException(ioException.toString()); + notifyListeners_error(unoIOException); + + throw unoIOException; + } + } + + /** + * Closes the connection. + * <p> + * @see com.sun.star.connections.XConnection#close + */ + public void close() throws com.sun.star.io.IOException, com.sun.star.uno.RuntimeException { + try { + _socket.close(); + } + catch(IOException ioException) { + com.sun.star.io.IOException unoIOException = new com.sun.star.io.IOException(ioException.toString()); + notifyListeners_error(unoIOException); + + throw unoIOException; + } + if (DEBUG) System.err.println("##### " + getClass().getName() + " - socket closed"); + + notifyListeners_close(); + } + + /** + * Gives a description of the connection. + * <p> + * @return the description + * @see com.sun.star.connections.XConnection#getDescription + */ + public String getDescription() throws com.sun.star.uno.RuntimeException { + return _description; + } + +} + |