Source for org.omg.CosNaming.BindingHelper

   1: /* BindingHelper.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.CosNaming;
  40: 
  41: import gnu.CORBA.Minor;
  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 {@link Binding}.
  53:  *
  54:  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  55:  */
  56: public abstract class BindingHelper
  57: {
  58:   /**
  59:    * The {@link Binding} repository id.
  60:    */
  61:   private static String _id = "IDL:omg.org/CosNaming/Binding:1.0";
  62: 
  63:   /**
  64:    * The cached type code value.
  65:    */
  66:   private static TypeCode typeCode;
  67: 
  68:   /**
  69:    * Extract the binding from the given {@link Any}.
  70:    */
  71:   public static Binding extract(Any a)
  72:   {
  73:     try
  74:       {
  75:         return ((BindingHolder) a.extract_Streamable()).value;
  76:       }
  77:     catch (ClassCastException ex)
  78:       {
  79:         BAD_OPERATION bad = new BAD_OPERATION("Binding expected");
  80:         bad.minor = Minor.Any;
  81:         bad.initCause(ex);
  82:         throw bad;
  83:       }
  84:   }
  85: 
  86:   /**
  87:    * Return the binding repository id.
  88:    */
  89:   public static String id()
  90:   {
  91:     return _id;
  92:   }
  93: 
  94:   /**
  95:    * Insert the binding into the given {@link Any}.
  96:    */
  97:   public static void insert(Any a, Binding that)
  98:   {
  99:     a.insert_Streamable(new BindingHolder(that));
 100:   }
 101: 
 102:   /**
 103:    * Read the binding from the given CDR stream.
 104:    */
 105:   public static Binding read(InputStream istream)
 106:   {
 107:     Binding value = new Binding();
 108:     value.binding_name = NameHelper.read(istream);
 109:     value.binding_type = BindingTypeHelper.read(istream);
 110:     return value;
 111:   }
 112: 
 113:   /**
 114:    * Create the type code for this exception.
 115:    */
 116:   public static TypeCode type()
 117:   {
 118:     if (typeCode == null)
 119:       {
 120:         ORB orb = ORB.init();
 121: 
 122:         StructMember[] members = new StructMember[ 2 ];
 123:         TypeCode member;
 124:         member = NameComponentHelper.type();
 125:         member = orb.create_sequence_tc(0, member);
 126:         member = orb.create_alias_tc(NameHelper.id(), "Name", member);
 127:         members [ 0 ] = new StructMember("binding_name", member, null);
 128:         member = BindingTypeHelper.type();
 129:         members [ 1 ] = new StructMember("binding_type", member, null);
 130:         typeCode = orb.create_struct_tc(id(), "Binding", members);
 131:       }
 132:     return typeCode;
 133:   }
 134: 
 135:   /**
 136:    * Write the exception to the CDR output stream.
 137:    */
 138:   public static void write(OutputStream ostream, Binding value)
 139:   {
 140:     NameHelper.write(ostream, value.binding_name);
 141:     BindingTypeHelper.write(ostream, value.binding_type);
 142:   }
 143: }