Source for gnu.classpath.jdwp.processor.ClassObjectReferenceCommandSet

   1: /* ClassObjectReferenceCommandSet.java -- class to implement the
   2:    ClassObjectReference Command Set
   3:    Copyright (C) 2005 Free Software Foundation
   4: 
   5: This file is part of GNU Classpath.
   6: 
   7: GNU Classpath is free software; you can redistribute it and/or modify
   8: it under the terms of the GNU General Public License as published by
   9: the Free Software Foundation; either version 2, or (at your option)
  10: any later version.
  11: 
  12: GNU Classpath is distributed in the hope that it will be useful, but
  13: WITHOUT ANY WARRANTY; without even the implied warranty of
  14: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15: General Public License for more details.
  16: 
  17: You should have received a copy of the GNU General Public License
  18: along with GNU Classpath; see the file COPYING.  If not, write to the
  19: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  20: 02110-1301 USA.
  21: 
  22: Linking this library statically or dynamically with other modules is
  23: making a combined work based on this library.  Thus, the terms and
  24: conditions of the GNU General Public License cover the whole
  25: combination.
  26: 
  27: As a special exception, the copyright holders of this library give you
  28: permission to link this library with independent modules to produce an
  29: executable, regardless of the license terms of these independent
  30: modules, and to copy and distribute the resulting executable under
  31: terms of your choice, provided that you also meet, for each linked
  32: independent module, the terms and conditions of the license of that
  33: module.  An independent module is a module which is not derived from
  34: or based on this library.  If you modify this library, you may extend
  35: this exception to your version of the library, but you are not
  36: obligated to do so.  If you do not wish to do so, delete this
  37: exception statement from your version. */
  38: 
  39: 
  40: package gnu.classpath.jdwp.processor;
  41: 
  42: import gnu.classpath.jdwp.JdwpConstants;
  43: import gnu.classpath.jdwp.exception.JdwpException;
  44: import gnu.classpath.jdwp.exception.JdwpInternalErrorException;
  45: import gnu.classpath.jdwp.exception.NotImplementedException;
  46: import gnu.classpath.jdwp.id.ObjectId;
  47: import gnu.classpath.jdwp.id.ReferenceTypeId;
  48: 
  49: import java.io.DataOutputStream;
  50: import java.io.IOException;
  51: import java.nio.ByteBuffer;
  52: 
  53: /**
  54:  * A class representing the ClassObjectReference Command Set.
  55:  *
  56:  * @author Aaron Luchko <aluchko@redhat.com>
  57:  */
  58: public class ClassObjectReferenceCommandSet
  59:   extends CommandSet
  60: {
  61:   public boolean runCommand(ByteBuffer bb, DataOutputStream os, byte command)
  62:     throws JdwpException
  63:   {
  64:     try
  65:       {
  66:         switch (command)
  67:           {
  68:           case JdwpConstants.CommandSet.ClassObjectReference.REFLECTED_TYPE:
  69:             executeReflectedType(bb, os);
  70:             break;
  71:           default:
  72:             throw new NotImplementedException("Command " + command +
  73:               " not found in ClassObject Reference Command Set.");
  74:           }
  75:       }
  76:     catch (IOException ex)
  77:       {
  78:         // The DataOutputStream we're using isn't talking to a socket at all
  79:         // So if we throw an IOException we're in serious trouble
  80:         throw new JdwpInternalErrorException(ex);
  81:       }
  82: 
  83:     return false;
  84:   }
  85: 
  86:   public void executeReflectedType(ByteBuffer bb, DataOutputStream os)
  87:     throws JdwpException, IOException
  88:   {
  89:     ObjectId oid = idMan.readObjectId(bb);
  90:     Class clazz = (Class) oid.getObject();
  91: 
  92:     // The difference between a ClassObjectId and a ReferenceTypeId is one is
  93:     // stored as an ObjectId and the other as a ReferenceTypeId.
  94:     ReferenceTypeId refId = idMan.getReferenceTypeId(clazz);
  95:     refId.writeTagged(os);
  96:   }
  97: }