001    /* ObjectHelper.java --
002       Copyright (C) 2005, 2006 Free Software Foundation, Inc.
003    
004    This file is part of GNU Classpath.
005    
006    GNU Classpath is free software; you can redistribute it and/or modify
007    it under the terms of the GNU General Public License as published by
008    the Free Software Foundation; either version 2, or (at your option)
009    any later version.
010    
011    GNU Classpath is distributed in the hope that it will be useful, but
012    WITHOUT ANY WARRANTY; without even the implied warranty of
013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014    General Public License for more details.
015    
016    You should have received a copy of the GNU General Public License
017    along with GNU Classpath; see the file COPYING.  If not, write to the
018    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019    02110-1301 USA.
020    
021    Linking this library statically or dynamically with other modules is
022    making a combined work based on this library.  Thus, the terms and
023    conditions of the GNU General Public License cover the whole
024    combination.
025    
026    As a special exception, the copyright holders of this library give you
027    permission to link this library with independent modules to produce an
028    executable, regardless of the license terms of these independent
029    modules, and to copy and distribute the resulting executable under
030    terms of your choice, provided that you also meet, for each linked
031    independent module, the terms and conditions of the license of that
032    module.  An independent module is a module which is not derived from
033    or based on this library.  If you modify this library, you may extend
034    this exception to your version of the library, but you are not
035    obligated to do so.  If you do not wish to do so, delete this
036    exception statement from your version. */
037    
038    
039    package org.omg.CORBA;
040    
041    import gnu.CORBA.Minor;
042    import gnu.CORBA.OrbRestricted;
043    
044    import org.omg.CORBA.portable.InputStream;
045    import org.omg.CORBA.portable.OutputStream;
046    
047    /**
048     * The helper operations for the binding list.
049     *
050     * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
051     */
052    public abstract class ObjectHelper
053    {
054      /**
055       * Extract the array of object from the given {@link Any}.
056       */
057      public static org.omg.CORBA.Object extract(Any a)
058      {
059        try
060          {
061            return ((ObjectHolder) a.extract_Streamable()).value;
062          }
063        catch (ClassCastException ex)
064          {
065            BAD_OPERATION bad = new BAD_OPERATION("CORBA object expected");
066            bad.minor = Minor.Any;
067            throw bad;        
068          }
069      }
070    
071      /**
072       * Get the object repository id.
073       * @return the empty string.
074       */
075      public static String id()
076      {
077        return "";
078      }
079    
080      /**
081       * Insert the object into the given {@link Any}.
082       */
083      public static void insert(Any a, org.omg.CORBA.Object object)
084      {
085        a.insert_Streamable(new ObjectHolder(object));
086      }
087    
088      /**
089       * Read the object from the given CDR input stream.
090       */
091      public static org.omg.CORBA.Object read(InputStream istream)
092      {
093        return istream.read_Object();
094      }
095    
096      /**
097       * Return the object type code.
098       */
099      public static TypeCode type()
100      {
101        return OrbRestricted.Singleton.get_primitive_tc(TCKind.tk_objref);
102      }
103    
104      /**
105       * Write the object into the given CDR output stream.
106       */
107      public static void write(OutputStream ostream, org.omg.CORBA.Object value)
108      {
109        ostream.write_Object(value);
110      }
111    }