/* SocketTransport.java -- a socket transport Copyright (C) 2005 Free Software Foundation This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath 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 General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version. */ package gnu.classpath.jdwp.transport; import gnu.classpath.jdwp.transport.ITransport; import gnu.classpath.jdwp.transport.TransportException; import java.io.InputStream; import java.io.IOException; import java.io.OutputStream; import java.net.ServerSocket; import java.net.Socket; import java.util.HashMap; import javax.net.ServerSocketFactory; import javax.net.SocketFactory; /** * A socket-based transport. This transport uses * configury string that looks like "name=dt_socket, * address=localhost:1234,server=y". * * @author Keith Seitz */ class SocketTransport implements ITransport { /** * Name of this transport */ public static final String NAME = "dt_socket"; // Configure properties private static final String _PROPERTY_ADDRESS = "address"; private static final String _PROPERTY_SERVER = "server"; // Port number private int _port; // Host name private String _host; // Are we acting as a server? private boolean _server = false; // Socket private Socket _socket; /** * Setup the connection configuration from the given properties * * @param properties the properties of the JDWP session * @throws TransportException for any configury errors */ public void configure (HashMap properties) throws TransportException { // Get address [form: "hostname:port"] String p = (String) properties.get (_PROPERTY_ADDRESS); if (p != null) { String[] s = p.split (":"); if (s.length == 2) { _host = s[0]; _port = Integer.parseInt (s[1]); } } // Get server [form: "y" or "n"] p = (String) properties.get (_PROPERTY_SERVER); if (p != null) { if (p.toLowerCase().equals ("y")) _server = true; } } /** * Initialize this socket connection. This includes * connecting to the host (or listening for it). * * @throws TransportException if a transport-related error occurs */ public void initialize () throws TransportException { try { if (_server) { // Get a server socket ServerSocketFactory ssf = ServerSocketFactory.getDefault (); ServerSocket ss = ssf.createServerSocket (_port, 1); _socket = ss.accept (); } else { // Get a client socket (the factory will connect it) SocketFactory sf = SocketFactory.getDefault (); _socket = sf.createSocket (_host, _port); } } catch (IOException ioe) { // This will grab UnknownHostException, too. throw new TransportException (ioe); } } /** * Returns an InputStream for the transport * * @throws IOException if an I/O error occurs creating the stream * or the socket is not connected */ public InputStream getInputStream () throws IOException { return _socket.getInputStream (); } /** * Returns an OutputStream for the transport * * @throws IOException if an I/O error occurs creating the stream * or the socket is not connected */ public OutputStream getOutputStream () throws IOException { return _socket.getOutputStream (); } }