Source for org.omg.PortableServer.CurrentPackage.NoContextHelper

   1: /* NoContextHelper.java --
   2:    Copyright (C) 2005, 2006 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 org.omg.PortableServer.CurrentPackage;
  40: 
  41: import gnu.CORBA.EmptyExceptionHolder;
  42: import gnu.CORBA.Minor;
  43: import gnu.CORBA.OrbRestricted;
  44: 
  45: import org.omg.CORBA.Any;
  46: import org.omg.CORBA.BAD_OPERATION;
  47: import org.omg.CORBA.ORB;
  48: import org.omg.CORBA.StructMember;
  49: import org.omg.CORBA.TypeCode;
  50: import org.omg.CORBA.portable.InputStream;
  51: import org.omg.CORBA.portable.OutputStream;
  52: 
  53: /**
  54: * The helper operations for the exception {@link NoContext}.
  55: *
  56: * @author Audrius Meskauskas, Lithiania (AudriusA@Bioinformatics.org)
  57: */
  58: public abstract class NoContextHelper
  59: {
  60:   /**
  61:    * Create the NoContext typecode (structure, named "NoContext").
  62:    */
  63:   public static TypeCode type()
  64:   {
  65:     ORB orb = OrbRestricted.Singleton;
  66:     StructMember[] members = new StructMember[0];
  67:     return orb.create_exception_tc(id(), "NoContext", members);
  68:   }
  69: 
  70:   /*
  71:    * Every user exception with no user defined fields can use
  72:    * EmptyExceptionHolder
  73:    */
  74: 
  75:   /**
  76:    * Insert the NoContext into the given Any.
  77:    *
  78:    * @param any the Any to insert into.
  79:    * @param that the NoContext to insert.
  80:    */
  81:   public static void insert(Any any, NoContext that)
  82:   {
  83:     any.insert_Streamable(new EmptyExceptionHolder(that, type()));
  84:   }
  85: 
  86:   /**
  87:    * Extract the NoContext from given Any.
  88:    *
  89:    * @throws BAD_OPERATION if the passed Any does not contain NoContext.
  90:    */
  91:   public static NoContext extract(Any any)
  92:   {
  93:     try
  94:       {
  95:         EmptyExceptionHolder h =
  96:           (EmptyExceptionHolder) any.extract_Streamable();
  97:         return (NoContext) h.value;
  98:       }
  99:     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: }