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jeremybenn |
/* NamingServiceTransient.java --
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Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.CORBA.NamingService;
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import gnu.CORBA.OrbFunctional;
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import gnu.CORBA.IOR;
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import org.omg.CosNaming.NamingContextExt;
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import java.io.FileOutputStream;
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import java.io.PrintStream;
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import java.io.UnsupportedEncodingException;
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/**
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* The server for the gnu classpath naming service. This is an executable class
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* that must be started to launch the GNU Classpath CORBA transient naming
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* service.
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*
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* GNU Classpath currently works with this naming service and is also
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* interoperable with the Sun Microsystems naming services from releases 1.3 and
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* 1.4, both transient <i>tnameserv</i> and persistent <i>orbd</i>.
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*
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* @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
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*/
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public class NamingServiceTransient
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{
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/**
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* The default port (900), on that the naming service starts if no
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* -ORBInitialPort is specified in the command line.
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*/
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public static final int PORT = 900;
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/**
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* Get the object key for the naming service. The default key is the string
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* "NameService" in ASCII.
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*
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* @return the byte array.
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*/
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public static byte[] getDefaultKey()
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{
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try
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{ // NameService
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return "NameService".getBytes("UTF-8");
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}
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catch (UnsupportedEncodingException ex)
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{
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throw new InternalError("UTF-8 unsupported");
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}
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}
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/**
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* Start the naming service on the current host at the given port.
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*
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* @param portArgument the port on which the service will be
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* started, or -1 to use the default port, 900
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* @param fileArgument if non-null, store the IOR string of this
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* naming service in a file by this name
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*/
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public static void start(int portArgument, String fileArgument)
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{
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int port = PORT;
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if (portArgument > -1)
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port = portArgument;
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String iorf = fileArgument;
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try
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{
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// Create and initialize the ORB
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final OrbFunctional orb = new OrbFunctional();
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OrbFunctional.setPort(port);
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// Create the servant and register it with the ORB
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NamingContextExt namer = new Ext(new TransientContext());
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// Case with the key "NameService".
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orb.connect(namer, "NameService".getBytes());
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// Storing the IOR reference.
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String ior = orb.object_to_string(namer);
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IOR iorr = IOR.parse(ior);
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if (iorf != null)
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{
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FileOutputStream f = new FileOutputStream(iorf);
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PrintStream p = new PrintStream(f);
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p.print(ior);
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p.close();
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}
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new Thread()
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{
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public void run()
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{
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// Wait for invocations from clients.
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orb.run();
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}
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}.start();
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}
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catch (Exception e)
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{
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System.err.println("ERROR: " + e);
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e.printStackTrace(System.err);
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}
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// Restore the default value for allocating ports for the subsequent
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// objects.
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OrbFunctional.setPort(OrbFunctional.DEFAULT_INITIAL_PORT);
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}
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}
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