old-autovect-branch/libjava/classpath/org/omg/CosNaming/NameHelper.java

   1 /* NameHelper.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.TypeCode;
  47 import org.omg.CORBA.portable.InputStream;
  48 import org.omg.CORBA.portable.OutputStream;
  49
  50 /**
  51  * The helper operations for the name that is defined as an array
  52  * of the name components. There is no java class, directly matching
  53  * the 'Name' IDL type.
  54  *
  55  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  56  */
  57 public abstract class NameHelper
  58 {
  59   /**
  60    * The repository id of the Name.
  61    */
  62   private static String _id = "IDL:omg.org/CosNaming/Name:1.0";
  63
  64   /**
  65    * The cached typecode of the Name.
  66    */
  67   private static TypeCode typeCode;
  68
  69   /**
  70    * Extract the Name the given {@link Any}.
  71    */
  72   public static NameComponent[] extract(Any a)
  73   {
  74     try
  75       {
  76         return ((NameHolder) a.extract_Streamable()).value;
  77       }
  78     catch (ClassCastException ex)
  79       {
  80         BAD_OPERATION bad = new BAD_OPERATION("Name expected");
  81         bad.initCause(ex);
  82         bad.minor = Minor.Any;
  83         throw bad;
  84       }
  85   }
  86
  87   /**
  88    * Get the Name repository Id.
  89    */
  90   public static String id()
  91   {
  92     return _id;
  93   }
  94
  95   /**
  96    * Extract the Name from the given {@link Any}.
  97    */
  98   public static void insert(Any a, NameComponent[] that)
  99   {
 100     a.insert_Streamable(new NameHolder(that));
 101   }
 102
 103   /**
 104    * Read the Name from the given CDR input stream.
 105    */
 106   public static NameComponent[] read(InputStream istream)
 107   {
 108     NameComponent[] value = null;
 109     int l = istream.read_long();
 110     value = new NameComponent[ l ];
 111     for (int i = 0; i < value.length; ++i)
 112       value [ i ] = NameComponentHelper.read(istream);
 113     return value;
 114   }
 115
 116   /**
 117    * Get the type code of the Name.
 118    */
 119   public static TypeCode type()
 120   {
 121     if (typeCode == null)
 122       {
 123         typeCode = NameComponentHelper.type();
 124         typeCode = ORB.init().create_sequence_tc(0, typeCode);
 125         typeCode =
 126           ORB.init().create_alias_tc(NameHelper.id(), "Name", typeCode);
 127       }
 128     return typeCode;
 129   }
 130
 131   /**
 132    * Write the Name into the CDR output stream.
 133    */
 134   public static void write(OutputStream ostream, NameComponent[] value)
 135   {
 136     ostream.write_long(value.length);
 137     for (int i = 0; i < value.length; ++i)
 138       NameComponentHelper.write(ostream, value [ i ]);
 139   }
 140 }