Source for gnu.java.rmi.server.RMIObjectInputStream

   1: /* RMIObjectInputStream.java --
   2:    Copyright (c) 1996, 1997, 1998, 1999, 2002, 2004
   3:    Free Software Foundation, Inc.
   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.java.rmi.server;
  41: 
  42: import java.io.IOException;
  43: import java.io.InputStream;
  44: import java.io.ObjectInputStream;
  45: import java.io.ObjectStreamClass;
  46: import java.lang.reflect.Proxy;
  47: import java.net.MalformedURLException;
  48: import java.rmi.server.RMIClassLoader;
  49: import java.util.ArrayList;
  50: 
  51: public class RMIObjectInputStream
  52:     extends ObjectInputStream {
  53: 
  54: public RMIObjectInputStream(InputStream strm) throws IOException {
  55:     super(strm);
  56:     enableResolveObject(true);
  57: }
  58: 
  59: protected Class resolveClass(ObjectStreamClass desc) throws IOException, ClassNotFoundException {
  60:     String annotation = (String)getAnnotation();
  61:     
  62:     try {
  63:         if(annotation == null)
  64:             return (RMIClassLoader.loadClass(desc.getName()));
  65:         else
  66:             return (RMIClassLoader.loadClass(annotation, desc.getName()));
  67:     }
  68:     catch (MalformedURLException _) {
  69:         throw new ClassNotFoundException(desc.getName());
  70:     }
  71: }
  72: 
  73: //Separate it for override by MarshalledObject
  74: protected Object getAnnotation()
  75:         throws IOException, ClassNotFoundException
  76: {
  77:     return readObject();
  78: }
  79:     
  80: 
  81:   protected Class resolveProxyClass(String intfs[]) throws IOException,
  82:       ClassNotFoundException
  83:   {
  84:     String annotation = (String) getAnnotation();
  85: 
  86:     Class clss[] = new Class[intfs.length];
  87: 
  88:     for (int i = 0; i < intfs.length; i++)
  89:       {
  90:         if (annotation == null)
  91:           clss[i] = RMIClassLoader.loadClass(intfs[i]);
  92:         else
  93:           clss[i] = RMIClassLoader.loadClass(annotation, intfs[i]);
  94:       }
  95:     
  96:     ClassLoader loader;
  97:     
  98:     if (clss.length > 0)
  99:       {
 100:         // Chain all class loaders (they may differ).
 101:         ArrayList loaders = new ArrayList(intfs.length);
 102:         ClassLoader cx;
 103:         for (int i = 0; i < clss.length; i++)
 104:           {
 105:             cx = clss[i].getClassLoader();
 106:             if (!loaders.contains(cx))
 107:               {
 108:                 loaders.add(0, cx);
 109:               }
 110:           }
 111:         loader = new CombinedClassLoader(loaders);
 112:       }
 113:     else
 114:        loader = ClassLoader.getSystemClassLoader();
 115: 
 116:     try
 117:       {
 118:         return Proxy.getProxyClass(loader, clss);
 119:       }
 120:     catch (IllegalArgumentException e)
 121:       {
 122:         throw new ClassNotFoundException(null, e);
 123:       }
 124:   }
 125: 
 126: protected Object readValue(Class valueClass) throws IOException, ClassNotFoundException {
 127:     if(valueClass.isPrimitive()){
 128:         if(valueClass == Boolean.TYPE)
 129:             return Boolean.valueOf(readBoolean());
 130:         if(valueClass == Byte.TYPE)
 131:             return new Byte(readByte());
 132:         if(valueClass == Character.TYPE)
 133:             return new Character(readChar());
 134:         if(valueClass == Short.TYPE)
 135:             return new Short(readShort());
 136:         if(valueClass == Integer.TYPE)
 137:             return new Integer(readInt());
 138:         if(valueClass == Long.TYPE)
 139:             return new Long(readLong());
 140:         if(valueClass == Float.TYPE)
 141:             return new Float(readFloat());
 142:         if(valueClass == Double.TYPE)
 143:             return new Double(readDouble());
 144:         else
 145:             throw new Error("Unsupported primitive class: " + valueClass);
 146:     } else
 147:         return readObject();
 148: }
 149: 
 150: }