Source for org.omg.DynamicAny.DynAnySeqHelper

   1: /* DynAnySeq.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.DynamicAny;
  40: 
  41: import gnu.CORBA.DynAnySeqHolder;
  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.MARSHAL;
  48: import org.omg.CORBA.ORB;
  49: import org.omg.CORBA.TypeCode;
  50: import org.omg.CORBA.portable.InputStream;
  51: import org.omg.CORBA.portable.OutputStream;
  52: 
  53: /**
  54:  * A helper operations for the array of {@link DynAny} (DynAny[]).
  55:  * Following the 1.5 JDK specifications, DynAny (and hence an sequence of
  56:  * DynAny's) is always a local object, so the two methods of this helper
  57:  * ({@link #read} and {@link #write} are not in use, always throwing
  58:  * {@link MARSHAL}.
  59:  *
  60:  * @specnote always throwing MARSHAL in read and write ensures compatibility
  61:  * with other popular implementations like Sun's.
  62:  *
  63:  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  64:  */
  65: public abstract class DynAnySeqHelper
  66: {
  67:   public static TypeCode type()
  68:   {
  69:     ORB orb = OrbRestricted.Singleton;
  70:     TypeCode t = orb.create_sequence_tc(0, DynAnyHelper.type());
  71:     return orb.create_alias_tc(id(), "DynAnySeq", t);
  72:   }
  73: 
  74:   /**
  75:    * Insert the DynAnySeq into the given Any.
  76:    * This method uses the DynAnySeqHolder.
  77:    *
  78:    * @param any the Any to insert into.
  79:    * @param those the DynAny[] to insert.
  80:    */
  81:   public static void insert(Any any, DynAny[] those)
  82:   {
  83:     any.insert_Streamable(new DynAnySeqHolder(those));
  84:   }
  85: 
  86:   /**
  87:    * Extract the DynAnySeq from given Any.
  88:    * This method uses the DynAnySeqHolder.
  89:    *
  90:    * @throws BAD_OPERATION if the passed Any does not contain DynAnySeq.
  91:    */
  92:   public static DynAny[] extract(Any any)
  93:   {
  94:     try
  95:       {
  96:         return ((DynAnySeqHolder) any.extract_Streamable()).value;
  97:       }
  98:     catch (ClassCastException cex)
  99:       {
 100:         BAD_OPERATION bad = new BAD_OPERATION("DynAnySeq expected");
 101:         bad.initCause(cex);
 102:         bad.minor = Minor.Any;        
 103:         throw bad;
 104:       }
 105:   }
 106: 
 107:   /**
 108:    * Get the DynAnySeq repository id.
 109:    *
 110:    * @return "IDL:omg.org/DynamicAny/DynAnySeq:1.0", always.
 111:    */
 112:   public static String id()
 113:   {
 114:     return "IDL:omg.org/DynamicAny/DynAnySeq:1.0";
 115:   }
 116: 
 117:   /**
 118:    * The method should read this object from the CDR input stream, but
 119:    * (following the JDK 1.5 API) it does not.
 120:    *
 121:    * @param input a org.omg.CORBA.portable stream to read from.
 122:    *
 123:    * @specenote Sun throws the same exception.
 124:    *
 125:    * @throws MARSHAL always.
 126:    */
 127:   public static DynAny[] read(InputStream input)
 128:   {
 129:     throw new MARSHAL(DynAnyFactoryHelper.not_applicable(id()));
 130:   }
 131: 
 132:   /**
 133:    * The method should write this object to the CDR input stream, but
 134:    * (following the JDK 1.5 API) it does not.
 135:    *
 136:    * @param output a org.omg.CORBA.portable stream to write into.
 137:    *
 138:    * @specenote Sun throws the same exception.
 139:    *
 140:    * @throws MARSHAL always.
 141:    */
 142:   public static void write(OutputStream output, DynAny[] value)
 143:   {
 144:     throw new MARSHAL(DynAnyFactoryHelper.not_applicable(id()));
 145:   }