Source for org.omg.CosNaming.NamingContextExtPackage.StringNameHelper

   1: /* StringNameHelper.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.NamingContextExtPackage;
  40: 
  41: import org.omg.CORBA.Any;
  42: import org.omg.CORBA.ORB;
  43: import org.omg.CORBA.TypeCode;
  44: import org.omg.CORBA.portable.InputStream;
  45: import org.omg.CORBA.portable.OutputStream;
  46: import org.omg.CORBA.portable.Streamable;
  47: 
  48: /**
  49:  * Helper operations for the string name.
  50:  * The string name is directly mapped into java String.
  51:  * There is no separate "String name" class in the implementation.
  52:  *
  53:  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  54:  */
  55: public abstract class StringNameHelper
  56: {
  57:   /**
  58:    * The string name repository id.
  59:    */
  60:   private static String _id =
  61:     "IDL:omg.org/CosNaming/NamingContextExt/StringName:1.0";
  62: 
  63:   /**
  64:    * The cached type code (string alias).
  65:    */
  66:   private static TypeCode typeCode;
  67: 
  68:   /**
  69:    * Just extracts string from this {@link Any}.
  70:    */
  71:   public static String extract(Any a)
  72:   {
  73:     return a.extract_string();
  74:   }
  75: 
  76:   /**
  77:    * Get repository id.
  78:    */
  79:   public static String id()
  80:   {
  81:     return _id;
  82:   }
  83: 
  84:   /**
  85:    * Just inserts string into this {@link Any}.
  86:    */
  87:   public static void insert(Any a, String that)
  88:   {
  89:     a.insert_string(that);
  90:   }
  91: 
  92:   /**
  93:    * Delegates functionality to {@link InputStream#read_string()}.
  94:    */
  95:   public static String read(InputStream istream)
  96:   {
  97:     return istream.read_string();
  98:   }
  99: 
 100:   /**
 101:    * Return the "StringName", alias of String, typecode.
 102:    */
 103:   public static synchronized TypeCode type()
 104:   {
 105:     if (typeCode == null)
 106:       {
 107:         typeCode = ORB.init().create_string_tc(0);
 108:         typeCode = ORB.init().create_alias_tc(id(), "StringName", typeCode);
 109:       }
 110:     return typeCode;
 111:   }
 112: 
 113:   /**
 114:    * Delegates functionality to {@link OutputStream#write_string}.
 115:    */
 116:   public static void write(OutputStream ostream, String value)
 117:   {
 118:     ostream.write_string(value);
 119:   }
 120: }