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Diffstat (limited to 'jurt/com/sun/star/lib/connections/pipe/PipeConnection.java')
| -rw-r--r-- | jurt/com/sun/star/lib/connections/pipe/PipeConnection.java | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/jurt/com/sun/star/lib/connections/pipe/PipeConnection.java b/jurt/com/sun/star/lib/connections/pipe/PipeConnection.java new file mode 100644 index 000000000000..455e3aab6502 --- /dev/null +++ b/jurt/com/sun/star/lib/connections/pipe/PipeConnection.java @@ -0,0 +1,232 @@ +/************************************************************************* + * + * 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.pipe; + +import java.io.IOException; + +import java.util.StringTokenizer; +import java.util.Enumeration; +import java.util.Vector; + +import com.sun.star.lib.util.NativeLibraryLoader; + +import com.sun.star.io.XStreamListener; + +import com.sun.star.connection.XConnection; +import com.sun.star.connection.XConnectionBroadcaster; + +/** + * The PipeConnection implements the <code>XConnection</code> interface + * and is uses by the <code>PipeConnector</code> and the <code>PipeAcceptor</code>. + * This class is not part of the provided <code>api</code>. + * <p> + * @version $Revision: 1.7 $ $ $Date: 2008-04-11 11:13:00 $ + * @author Kay Ramme + * @see com.sun.star.comp.connections.PipeAcceptor + * @see com.sun.star.comp.connections.PipeConnector + * @see com.sun.star.connections.XConnection + * @since UDK1.0 + */ +public class PipeConnection implements XConnection, XConnectionBroadcaster { + /** + * When set to true, enables various debugging output. + */ + static public final boolean DEBUG = false; + + static { + // load shared library for JNI code + NativeLibraryLoader.loadLibrary(PipeConnection.class.getClassLoader(), "jpipe"); + } + + protected String _aDescription; + protected long _nPipeHandle; + protected Vector _aListeners; + protected boolean _bFirstRead; + + /** + * Constructs a new <code>PipeConnection</code>. + * <p> + * @param description the description of the connection + * @param pipe the pipe of the connection + */ + public PipeConnection(String description) + throws IOException + { + if (DEBUG) System.err.println("##### " + getClass().getName() + " - instantiated " + description ); + + _aListeners = new Vector(); + _bFirstRead = true; + + // get pipe name from pipe descriptor + String aPipeName = null; + StringTokenizer aTokenizer = new StringTokenizer( description, "," ); + if ( aTokenizer.hasMoreTokens() ) + { + String aConnType = aTokenizer.nextToken(); + if ( !aConnType.equals( "pipe" ) ) + throw new RuntimeException( "invalid pipe descriptor: does not start with 'pipe,'" ); + + String aPipeNameParam = aTokenizer.nextToken(); + if ( !aPipeNameParam.substring( 0, 5 ).equals( "name=" ) ) + throw new RuntimeException( "invalid pipe descriptor: no 'name=' parameter found" ); + aPipeName = aPipeNameParam.substring( 5 ); + } + else + throw new RuntimeException( "invalid or empty pipe descriptor" ); + + // create the pipe + try + { createJNI( aPipeName ); } + catch ( java.lang.NullPointerException aNPE ) + { throw new IOException( aNPE.getMessage() ); } + catch ( com.sun.star.io.IOException aIOE ) + { throw new IOException( aIOE.getMessage() ); } + catch ( java.lang.Exception aE ) + { throw new IOException( aE.getMessage() ); } + } + + public void addStreamListener(XStreamListener aListener ) throws com.sun.star.uno.RuntimeException { + _aListeners.addElement(aListener); + } + + public void removeStreamListener(XStreamListener aListener ) throws com.sun.star.uno.RuntimeException { + _aListeners.removeElement(aListener); + } + + private void notifyListeners_open() { + Enumeration elements = _aListeners.elements(); + while(elements.hasMoreElements()) { + XStreamListener xStreamListener = (XStreamListener)elements.nextElement(); + xStreamListener.started(); + } + } + + private void notifyListeners_close() { + Enumeration elements = _aListeners.elements(); + while(elements.hasMoreElements()) { + XStreamListener xStreamListener = (XStreamListener)elements.nextElement(); + xStreamListener.closed(); + } + } + + private void notifyListeners_error(com.sun.star.uno.Exception exception) { + Enumeration elements = _aListeners.elements(); + while(elements.hasMoreElements()) { + XStreamListener xStreamListener = (XStreamListener)elements.nextElement(); + xStreamListener.error(exception); + } + } + + // JNI implementation to create the pipe + private native int createJNI( String name ) + throws com.sun.star.io.IOException, com.sun.star.uno.RuntimeException; + + // JNI implementation to read from the pipe + private native int readJNI(/*OUT*/byte[][] bytes, int nBytesToRead) + throws com.sun.star.io.IOException, com.sun.star.uno.RuntimeException; + + // JNI implementation to write to the pipe + private native void writeJNI(byte aData[]) + throws com.sun.star.io.IOException, com.sun.star.uno.RuntimeException; + + // JNI implementation to flush the pipe + private native void flushJNI() + throws com.sun.star.io.IOException, com.sun.star.uno.RuntimeException; + + // JNI implementation to close the pipe + private native void closeJNI() + throws com.sun.star.io.IOException, com.sun.star.uno.RuntimeException; + + /** + * 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(_bFirstRead) { + _bFirstRead = false; + + notifyListeners_open(); + } + + return readJNI( bytes, nBytesToRead ); + } + + /** + * 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 + { + writeJNI( aData ); + } + + /** + * 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 + { + flushJNI(); + } + + /** + * 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 + { + if (DEBUG) System.out.print( "PipeConnection::close() " ); + closeJNI(); + notifyListeners_close(); + if (DEBUG) System.out.println( "done" ); + } + + /** + * 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 _aDescription; + } + +} + |