Source for org.omg.PortableInterceptor.InvalidSlotHelper

   1: /* InvalidSlotHelper.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 org.omg.PortableInterceptor;
  40: 
  41: import gnu.CORBA.EmptyExceptionHolder;
  42: 
  43: import org.omg.CORBA.Any;
  44: import org.omg.CORBA.BAD_OPERATION;
  45: import org.omg.CORBA.ORB;
  46: import org.omg.CORBA.StructMember;
  47: import org.omg.CORBA.TypeCode;
  48: import org.omg.CORBA.portable.InputStream;
  49: import org.omg.CORBA.portable.OutputStream;
  50: 
  51: /**
  52:  * The helper operations for the exception {@link InvalidSlot}.
  53:  *
  54:  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  55:  */
  56: public abstract class InvalidSlotHelper
  57: {
  58:   /**
  59:    * The cached typecode value, computed only once.
  60:    */
  61:   private static TypeCode typeCode;
  62: 
  63:   /**
  64:    * Create the InvalidSlot typecode (structure, named "InvalidSlot").
  65:    */
  66:   public static TypeCode type()
  67:   {
  68:     if (typeCode == null)
  69:       {
  70:         ORB orb = ORB.init();
  71:         StructMember[] members = new StructMember[ 0 ];
  72:         typeCode = orb.create_exception_tc(id(), "InvalidSlot", members);
  73:       }
  74:     return typeCode;
  75:   }
  76: 
  77:   /*
  78:    * Every user exception with no user defined fields can use
  79:    * EmptyExceptionHolder
  80:    */
  81: 
  82:   /**
  83:    * Insert the InvalidSlot into the given Any.
  84:    *
  85:    * @param any the Any to insert into.
  86:    * @param that the InvalidSlot to insert.
  87:    */
  88:   public static void insert(Any any, InvalidSlot that)
  89:   {
  90:     any.insert_Streamable(new EmptyExceptionHolder(that, type()));
  91:   }
  92: 
  93:   /**
  94:    * Extract the InvalidSlot from given Any.
  95:    *
  96:    * @throws BAD_OPERATION if the passed Any does not contain InvalidSlot.
  97:    */
  98:   public static InvalidSlot extract(Any any)
  99:   {
 100:     try
 101:       {
 102:         EmptyExceptionHolder h =
 103:           (EmptyExceptionHolder) any.extract_Streamable();
 104:         return (InvalidSlot) h.value;
 105:       }
 106:     catch (ClassCastException cex)
 107:       {
 108:         BAD_OPERATION bad = new BAD_OPERATION("InvalidSlot expected");
 109:         bad.initCause(cex);
 110:         throw bad;
 111:       }
 112:   }
 113: 
 114:   /**
 115:    * Get the InvalidSlot repository id.
 116:    *
 117:    * @return "IDL:omg.org/PortableInterceptor/InvalidSlot:1.0", always.
 118:    */
 119:   public static String id()
 120:   {
 121:     return "IDL:omg.org/PortableInterceptor/InvalidSlot:1.0";
 122:   }
 123: 
 124:   /**
 125:    * Read the exception from the CDR intput stream.
 126:    *
 127:    * @param input a org.omg.CORBA.portable stream to read from.
 128:    */
 129:   public static InvalidSlot read(InputStream input)
 130:   {
 131:     // Read the exception repository id.
 132:     String id = input.read_string();
 133:     InvalidSlot value = new InvalidSlot(id);
 134: 
 135:     return value;
 136:   }
 137: 
 138:   /**
 139:    * Write the exception to the CDR output stream.
 140:    *
 141:    * @param output a org.omg.CORBA.portable stream stream to write into.
 142:    * @param value a value to write.
 143:    */
 144:   public static void write(OutputStream output, InvalidSlot value)
 145:   {
 146:     // Write the exception repository id.
 147:     output.write_string(id());
 148:   }