ProxyClassLoader.java
上传用户:shenzhenrh
上传日期:2013-05-12
资源大小:2904k
文件大小:2k
源码类别:
信息检索与抽取
开发平台:
Unix_Linux
- // Swarm library. Copyright (C) 1999-2000 Swarm Development Group.
- // This program 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 of the
- // License, or (at your option) any later version.
- //
- // This program 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 this program; if not, write to the Free Software
- // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- // USA
- //
- // The Swarm Development Group can be reached via our website at:
- // http://www.swarm.org/
- package swarm;
- import java.io.IOException;
- import gnu.bytecode.ClassType;
- import gnu.bytecode.Access;
- import gnu.bytecode.Type;
- import gnu.bytecode.Method;
- public class ProxyClassLoader extends ClassLoader {
- public Class findClass (String name) {
- try {
- ClassType clas = new ClassType (name);
- ClassType superClass = ClassType.make ("swarm.ObjCProxy");
- clas.setSuper (superClass);
- Method constructor = clas.addMethod ("<init>", Type.typeArray0,
- Type.void_type, Access.PUBLIC);
- Method superConstructor =
- superClass.addMethod ("<init>", Type.typeArray0,
- Type.void_type, Access.PUBLIC);
- constructor.init_param_slots ();
- gnu.bytecode.CodeAttr code = constructor.getCode();
- code.emitPushThis();
- code.emitInvokeSpecial (superConstructor);
- code.emitReturn();
- byte[] b = clas.writeToArray ();
- return defineClass (name, b, 0, b.length);
- } catch (IOException e) {
- e.printStackTrace (System.err);
- System.exit (1);
- }
- return null;
- }
- }
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