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Diffstat (limited to 'libjava/classpath/gnu/javax/rmi/CORBA/DelegateFactory.java')
-rw-r--r-- | libjava/classpath/gnu/javax/rmi/CORBA/DelegateFactory.java | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/javax/rmi/CORBA/DelegateFactory.java b/libjava/classpath/gnu/javax/rmi/CORBA/DelegateFactory.java new file mode 100644 index 000000000..a12afd51e --- /dev/null +++ b/libjava/classpath/gnu/javax/rmi/CORBA/DelegateFactory.java @@ -0,0 +1,107 @@ +/* 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; + } + } +} |