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 org.omg.CORBA.Any;
  42: import org.omg.CORBA.BAD_OPERATION;
  43: import org.omg.CORBA.ORB;
  44: import org.omg.CORBA.StructMember;
  45: import org.omg.CORBA.TypeCode;
  46: import org.omg.CORBA.portable.InputStream;
  47: import org.omg.CORBA.portable.OutputStream;
  48: 
  49: /**
  50:  * The helper operations for {@link Binding}.
  51:  *
  52:  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  53:  */
  54: public abstract class BindingHelper
  55: {
  56:   /**
  57:    * The {@link Binding} repository id.
  58:    */
  59:   private static String _id = "IDL:omg.org/CosNaming/Binding:1.0";
  60: 
  61:   /**
  62:    * The cached type code value.
  63:    */
  64:   private static TypeCode typeCode;
  65: 
  66:   /**
  67:    * Extract the binding from the given {@link Any}.
  68:    */
  69:   public static Binding extract(Any a)
  70:   {
  71:     try
  72:       {
  73:         return ((BindingHolder) a.extract_Streamable()).value;
  74:       }
  75:     catch (ClassCastException ex)
  76:       {
  77:         throw new BAD_OPERATION("Binding expected");
  78:       }
  79:   }
  80: 
  81:   /**
  82:    * Return the binding repository id.
  83:    */
  84:   public static String id()
  85:   {
  86:     return _id;
  87:   }
  88: 
  89:   /**
  90:    * Insert the binding into the given {@link Any}.
  91:    */
  92:   public static void insert(Any a, Binding that)
  93:   {
  94:     a.insert_Streamable(new BindingHolder(that));
  95:   }
  96: 
  97:   /**
  98:    * Read the binding from the given CDR stream.
  99:    */
 100:   public static Binding read(InputStream istream)
 101:   {
 102:     Binding value = new Binding();
 103:     value.binding_name = NameHelper.read(istream);
 104:     value.binding_type = BindingTypeHelper.read(istream);
 105:     return value;
 106:   }
 107: 
 108:   /**
 109:    * Create the type code for this exception.
 110:    */
 111:   public static TypeCode type()
 112:   {
 113:     if (typeCode == null)
 114:       {
 115:         ORB orb = ORB.init();
 116: 
 117:         StructMember[] members = new StructMember[ 2 ];
 118:         TypeCode member;
 119:         member = NameComponentHelper.type();
 120:         member = orb.create_sequence_tc(0, member);
 121:         member = orb.create_alias_tc(NameHelper.id(), "Name", member);
 122:         members [ 0 ] = new StructMember("binding_name", member, null);
 123:         member = BindingTypeHelper.type();
 124:         members [ 1 ] = new StructMember("binding_type", member, null);
 125:         typeCode = orb.create_struct_tc(id(), "Binding", members);
 126:       }
 127:     return typeCode;
 128:   }
 129: 
 130:   /**
 131:    * Write the exception to the CDR output stream.
 132:    */
 133:   public static void write(OutputStream ostream, Binding value)
 134:   {
 135:     NameHelper.write(ostream, value.binding_name);
 136:     BindingTypeHelper.write(ostream, value.binding_type);
 137:   }
 138: }