1 /*
   2  * Copyright (c) 2000, 2003, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.corba.se.impl.ior;
  27 
  28 import org.omg.CORBA.OctetSeqHolder ;
  29 
  30 import org.omg.CORBA_2_3.portable.InputStream ;
  31 import org.omg.CORBA_2_3.portable.OutputStream ;
  32 
  33 import com.sun.corba.se.spi.ior.ObjectId ;
  34 import com.sun.corba.se.spi.ior.ObjectKeyFactory ;
  35 
  36 import com.sun.corba.se.spi.orb.ORB ;
  37 import com.sun.corba.se.spi.orb.ORBVersion ;
  38 import com.sun.corba.se.spi.orb.ORBVersionFactory ;
  39 
  40 import com.sun.corba.se.impl.ior.ObjectKeyFactoryImpl ;
  41 
  42 import com.sun.corba.se.impl.encoding.CDRInputStream ;
  43 
  44 /**
  45  * Handles object keys created by JDK ORBs from before JDK 1.4.0.
  46  */
  47 public final class OldJIDLObjectKeyTemplate extends OldObjectKeyTemplateBase
  48 {
  49     /**
  50      * JDK 1.3.1 FCS did not include a version byte at the end of
  51      * its object keys.  JDK 1.3.1_01 included the byte with the
  52      * value 1.  Anything below 1 is considered an invalid value.
  53      */
  54     public static final byte NULL_PATCH_VERSION = 0;
  55 
  56     byte patchVersion = OldJIDLObjectKeyTemplate.NULL_PATCH_VERSION;
  57 
  58     public OldJIDLObjectKeyTemplate( ORB orb, int magic, int scid,
  59         InputStream is, OctetSeqHolder osh )
  60     {
  61         this( orb, magic, scid, is );
  62 
  63         osh.value = readObjectKey( is ) ;
  64 
  65         /**
  66          * Beginning with JDK 1.3.1_01, a byte was placed at the end of
  67          * the object key with a value indicating the patch version.
  68          * JDK 1.3.1_01 had the value 1.  If other patches are necessary
  69          * which involve ORB versioning changes, they should increment
  70          * the patch version.
  71          *
  72          * Note that if we see a value greater than 1 in this code, we
  73          * will treat it as if we're talking to the most recent ORB version.
  74          *
  75          * WARNING: This code is sensitive to changes in CDRInputStream
  76          * getPosition.  It assumes that the CDRInputStream is an
  77          * encapsulation whose position can be compared to the object
  78          * key array length.
  79          */
  80         if (magic == ObjectKeyFactoryImpl.JAVAMAGIC_NEW &&
  81             osh.value.length > ((CDRInputStream)is).getPosition()) {
  82 
  83             patchVersion = is.read_octet();
  84 
  85             if (patchVersion == ObjectKeyFactoryImpl.JDK1_3_1_01_PATCH_LEVEL)
  86                 setORBVersion(ORBVersionFactory.getJDK1_3_1_01());
  87             else if (patchVersion > ObjectKeyFactoryImpl.JDK1_3_1_01_PATCH_LEVEL)
  88                 setORBVersion(ORBVersionFactory.getORBVersion());
  89             else
  90                 throw wrapper.invalidJdk131PatchLevel( new Integer( patchVersion ) ) ;
  91         }
  92     }
  93 
  94 
  95     public OldJIDLObjectKeyTemplate( ORB orb, int magic, int scid, int serverid)
  96     {
  97         super( orb, magic, scid, serverid, JIDL_ORB_ID, JIDL_OAID ) ;
  98     }
  99 
 100     public OldJIDLObjectKeyTemplate(ORB orb, int magic, int scid, InputStream is)
 101     {
 102         this( orb, magic, scid, is.read_long() ) ;
 103     }
 104 
 105     protected void writeTemplate( OutputStream os )
 106     {
 107         os.write_long( getMagic() ) ;
 108         os.write_long( getSubcontractId() ) ;
 109         os.write_long( getServerId() ) ;
 110     }
 111 
 112     public void write(ObjectId objectId, OutputStream os)
 113     {
 114         super.write(objectId, os);
 115 
 116         if (patchVersion != OldJIDLObjectKeyTemplate.NULL_PATCH_VERSION)
 117            os.write_octet( patchVersion ) ;
 118     }
 119 }