old-autovect-branch/libjava/classpath/gnu/CORBA/DynAn/AbstractAny.java

   1 /* AbstractAny.java --
   2    Copyright (C) 2005 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 02110-1301 USA.
  20
  21 Linking this library statically or dynamically with other modules is
  22 making a combined work based on this library.  Thus, the terms and
  23 conditions of the GNU General Public License cover the whole
  24 combination.
  25
  26 As a special exception, the copyright holders of this library give you
  27 permission to link this library with independent modules to produce an
  28 executable, regardless of the license terms of these independent
  29 modules, and to copy and distribute the resulting executable under
  30 terms of your choice, provided that you also meet, for each linked
  31 independent module, the terms and conditions of the license of that
  32 module.  An independent module is a module which is not derived from
  33 or based on this library.  If you modify this library, you may extend
  34 this exception to your version of the library, but you are not
  35 obligated to do so.  If you do not wish to do so, delete this
  36 exception statement from your version. */
  37
  38
  39 package gnu.CORBA.DynAn;
  40
  41 import gnu.CORBA.TypeKindNamer;
  42
  43 import org.omg.CORBA.Any;
  44 import org.omg.CORBA.LocalObject;
  45 import org.omg.CORBA.ORB;
  46 import org.omg.CORBA.TypeCode;
  47 import org.omg.DynamicAny.DynAnyPackage.TypeMismatch;
  48
  49 import java.io.Serializable;
  50
  51 /**
  52  * The top of our DynAny implementation, this class provides ORB that is
  53  * required to create anys and factory that is required to initialise DynAnys.
  54  *
  55  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  56  */
  57 public abstract class AbstractAny
  58   extends LocalObject
  59   implements Serializable
  60 {
  61   /**
  62    * Use serialVersionUID for interoperability.
  63    */
  64   private static final long serialVersionUID = 1;
  65
  66   /**
  67    * The "initial final_type" that can be an alias of the known final_type.
  68    */
  69   public TypeCode official_type;
  70
  71   /**
  72    * The "basic" final_type to that the final_type finally evaluates.
  73    */
  74   public final TypeCode final_type;
  75
  76   /**
  77    * The DynAny factory, required in initializations.
  78    */
  79   public final gnuDynAnyFactory factory;
  80
  81   /**
  82    * The ORB, to that this DynAny belongs.
  83    */
  84   public final ORB orb;
  85
  86   /**
  87    * The minor code, indicating the error, related to work with non - GNU
  88    * Classpath DynAny.
  89    */
  90   short MINOR = 8148;
  91
  92   /**
  93    * The message about the empty structure or exception.
  94    */
  95   static final String EMPTY = "Empty structure with no fields.";
  96
  97   /**
  98    * The message about the structure or exception size mismatch.
  99    */
 100   static final String SIZE = "Size mismatch.";
 101
 102   /**
 103    * The message about the content of this DynAny being equal to
 104    * <code>null</code>
 105    */
 106   static final String ISNULL = "The content is null";
 107
 108   /**
 109    * The change value listener.
 110    */
 111   ValueChangeListener listener;
 112
 113   /**
 114    * Create the abstract dyn any.
 115    */
 116   public AbstractAny(TypeCode oType, TypeCode aType,
 117                         gnuDynAnyFactory aFactory, ORB anOrb
 118                        )
 119   {
 120     official_type = oType;
 121     final_type = aType;
 122     factory = aFactory;
 123     orb = anOrb;
 124   }
 125
 126   /**
 127    * Get the typecode.
 128    */
 129   public TypeCode type()
 130   {
 131     return official_type;
 132   }
 133
 134   /**
 135    * Create the Any.
 136    */
 137   public Any createAny()
 138   {
 139     return orb.create_any();
 140   }
 141
 142   /**
 143    * The "value changed" listener.
 144    */
 145   protected void valueChanged()
 146   {
 147     if (listener != null)
 148       listener.changed();
 149   }
 150
 151   /**
 152    * Check the type.
 153    */
 154   void checkType(TypeCode expected, TypeCode actual)
 155           throws TypeMismatch
 156   {
 157     if (!expected.equal(actual))
 158       throw new TypeMismatch(typeMismatch(expected, actual));
 159   }
 160
 161   /**
 162    * Format "Type mismatch" string.
 163    */
 164   String typeMismatch(TypeCode expected, TypeCode actual)
 165   {
 166     return TypeKindNamer.nameIt(expected) + " expected " +
 167            TypeKindNamer.nameIt(actual);
 168   }
 169
 170   /**
 171    * Format "size mismatch" string.
 172    */
 173   String sizeMismatch(int here, int other)
 174   {
 175     return "Size mismatch, " + other + " (expected " + here + ")";
 176   }
 177 }