| /* DelegateFactory.java -- |
| Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc. |
| |
| 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., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 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 |
| 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.javax.rmi.CORBA; |
| |
| import gnu.CORBA.ObjectCreator; |
| |
| |
| /** |
| * This class produces delegates, using the system properties. If not |
| * corresponding property is specified, returns default implementations. |
| * |
| * @author Wu Gansha (gansha.wu@intel.com) |
| * @author Audrius Meskauskas (AudriusA@Bioinformatics.org) |
| */ |
| public class DelegateFactory |
| { |
| /** |
| * The name to get a stub delegate. |
| */ |
| public static final String STUB = "Stub"; |
| |
| /** |
| * The name to get the util delegate. |
| */ |
| public static final String UTIL = "Util"; |
| |
| /** |
| * The name to get the ValueHandler delegate. |
| */ |
| public static final String VALUEHANDLER = "ValueHandler"; |
| |
| /** |
| * The name to get the PortableRemoteObject delegate. |
| */ |
| public static final String PORTABLE_REMOTE_OBJECT = "PortableRemoteObject"; |
| |
| /** |
| * Get an instance of the given delegate. As in all cases the singleton |
| * instance is used, the caching here would be redundant. |
| * |
| * @param type a delegate type. |
| * |
| * @return the associated delegate. |
| * |
| * @throws InternalError if the delegate class, indicated in the system |
| * properties, cannot be instantiated. |
| */ |
| public static Object getInstance(String type) |
| throws InternalError |
| { |
| String propertyName = "javax.rmi.CORBA." + type + "Class"; |
| String dcname = System.getProperty(propertyName); |
| if (dcname == null) |
| { |
| // // No javax.rmi.CORBA.XXXClass property sepcified. |
| dcname = "gnu.javax.rmi.CORBA." + type + "DelegateImpl"; |
| } |
| try |
| { |
| Class dclass = ObjectCreator.forName(dcname); |
| return dclass.newInstance(); |
| } |
| catch (Exception e) |
| { |
| InternalError ierr = new InternalError("Exception when trying to get " |
| + type + "delegate instance:" + dcname); |
| ierr.initCause(e); |
| throw ierr; |
| } |
| } |
| } |