| /* VMVio.java -- Native operations, required by value IO. |
| Copyright (C) 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. */ |
| |
| /** |
| * This is a temporary replacement for the native call that would allocate |
| * objects without public constructors. The replacement only allocates |
| * objects with public parameterless constructor and objects with public |
| * constructor taking string (like some Throwables). |
| * |
| * @author Audrius Meskauskas (AudriusA@Bioinformatics.org) |
| * |
| * TODO FIXME replace by native call like in VMObjectInputStream. |
| * Required modification of Classpath the build system. |
| */ |
| |
| |
| package gnu.CORBA.CDR; |
| |
| import java.lang.reflect.Constructor; |
| |
| public class VMVio |
| { |
| /** |
| * Allocates a new Object of type clazz but without running the default |
| * constructor on it. It then calls the given constructor on it. The given |
| * constructor method comes from the constr_clazz which is a super class of |
| * the given clazz. |
| */ |
| public static Object allocateObject(Class clazz, Class constr_clazz, |
| Constructor constructor) |
| throws InstantiationException |
| { |
| try |
| { |
| Constructor c = clazz.getConstructor(new Class[0]); |
| c.setAccessible(true); |
| return c.newInstance(new Object[0]); |
| } |
| catch (Exception ex) |
| { |
| try |
| { |
| Constructor c = clazz.getConstructor(new Class[] { String.class }); |
| return c.newInstance(new Object[] { "" }); |
| } |
| catch (Exception ex2) |
| { |
| Constructor c[] = clazz.getConstructors(); |
| |
| for (int i = 0; i < c.length; i++) |
| { |
| try |
| { |
| c[i].setAccessible(true); |
| Class[] args = c[i].getParameterTypes(); |
| return c[i].newInstance(new Object[args.length]); |
| } |
| catch (Exception ex3) |
| { |
| // Try another one. |
| } |
| } |
| } |
| throw new InstantiationException(clazz.getName()); |
| } |
| } |
| } |