001    /* NoContextHelper.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.PortableServer.CurrentPackage;
040    
041    import gnu.CORBA.EmptyExceptionHolder;
042    import gnu.CORBA.Minor;
043    import gnu.CORBA.OrbRestricted;
044    
045    import org.omg.CORBA.Any;
046    import org.omg.CORBA.BAD_OPERATION;
047    import org.omg.CORBA.ORB;
048    import org.omg.CORBA.StructMember;
049    import org.omg.CORBA.TypeCode;
050    import org.omg.CORBA.portable.InputStream;
051    import org.omg.CORBA.portable.OutputStream;
052    
053    /**
054    * The helper operations for the exception {@link NoContext}.
055    *
056    * @author Audrius Meskauskas, Lithiania (AudriusA@Bioinformatics.org)
057    */
058    public abstract class NoContextHelper
059    {
060      /**
061       * Create the NoContext typecode (structure, named "NoContext").
062       */
063      public static TypeCode type()
064      {
065        ORB orb = OrbRestricted.Singleton;
066        StructMember[] members = new StructMember[0];
067        return orb.create_exception_tc(id(), "NoContext", members);
068      }
069    
070      /*
071       * Every user exception with no user defined fields can use
072       * EmptyExceptionHolder
073       */
074    
075      /**
076       * Insert the NoContext into the given Any.
077       *
078       * @param any the Any to insert into.
079       * @param that the NoContext to insert.
080       */
081      public static void insert(Any any, NoContext that)
082      {
083        any.insert_Streamable(new EmptyExceptionHolder(that, type()));
084      }
085    
086      /**
087       * Extract the NoContext from given Any.
088       *
089       * @throws BAD_OPERATION if the passed Any does not contain NoContext.
090       */
091      public static NoContext extract(Any any)
092      {
093        try
094          {
095            EmptyExceptionHolder h =
096              (EmptyExceptionHolder) any.extract_Streamable();
097            return (NoContext) h.value;
098          }
099        catch (ClassCastException cex)
100          {
101            BAD_OPERATION bad = new BAD_OPERATION("NoContext expected");
102            bad.minor = Minor.Any;        
103            bad.initCause(cex);
104            throw bad;
105          }
106      }
107    
108      /**
109       * Get the NoContext repository id.
110       *
111       * @return "IDL:omg.org/PortableServer/Current/NoContext:1.0", always.
112       */
113      public static String id()
114      {
115        return "IDL:omg.org/PortableServer/Current/NoContext:1.0";
116      }
117    
118      /**
119       * Read the exception from the CDR intput stream.
120       *
121       * @param input a org.omg.CORBA.portable stream to read from.
122       */
123      public static NoContext read(InputStream input)
124      {
125        // Read the exception repository id.
126        String id = input.read_string();
127        NoContext value = new NoContext(id);
128    
129        return value;
130      }
131    
132      /**
133       * Write the exception to the CDR output stream.
134       *
135       * @param output a org.omg.CORBA.portable stream stream to write into.
136       * @param value a value to write.
137       */
138      public static void write(OutputStream output, NoContext value)
139      {
140        // Write the exception repository id.
141        output.write_string(id());
142      }
143    }