001/* InvalidPolicyHelper.java --
002   Copyright (C) 2005 Free Software Foundation, Inc.
003
004This file is part of GNU Classpath.
005
006GNU Classpath is free software; you can redistribute it and/or modify
007it under the terms of the GNU General Public License as published by
008the Free Software Foundation; either version 2, or (at your option)
009any later version.
010
011GNU Classpath is distributed in the hope that it will be useful, but
012WITHOUT ANY WARRANTY; without even the implied warranty of
013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014General Public License for more details.
015
016You should have received a copy of the GNU General Public License
017along with GNU Classpath; see the file COPYING.  If not, write to the
018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
01902110-1301 USA.
020
021Linking this library statically or dynamically with other modules is
022making a combined work based on this library.  Thus, the terms and
023conditions of the GNU General Public License cover the whole
024combination.
025
026As a special exception, the copyright holders of this library give you
027permission to link this library with independent modules to produce an
028executable, regardless of the license terms of these independent
029modules, and to copy and distribute the resulting executable under
030terms of your choice, provided that you also meet, for each linked
031independent module, the terms and conditions of the license of that
032module.  An independent module is a module which is not derived from
033or based on this library.  If you modify this library, you may extend
034this exception to your version of the library, but you are not
035obligated to do so.  If you do not wish to do so, delete this
036exception statement from your version. */
037
038
039package org.omg.PortableServer.POAPackage;
040
041import gnu.CORBA.Minor;
042import gnu.CORBA.OrbRestricted;
043import gnu.CORBA.Poa.InvalidPolicyHolder;
044
045import org.omg.CORBA.Any;
046import org.omg.CORBA.BAD_OPERATION;
047import org.omg.CORBA.ORB;
048import org.omg.CORBA.StructMember;
049import org.omg.CORBA.TCKind;
050import org.omg.CORBA.TypeCode;
051import org.omg.CORBA.portable.InputStream;
052import org.omg.CORBA.portable.OutputStream;
053
054/**
055 * The helper operations for the exception {@link InvalidPolicy}.
056 *
057 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
058 */
059public abstract class InvalidPolicyHelper
060{
061  /**
062   * The cached typecode value, computed only once.
063   */
064  private static TypeCode typeCode;
065
066  /**
067   * Create the InvalidPolicy typecode (emtpy structure,
068   * named "InvalidPolicy").
069   * The typecode states that the structure contains the
070   * single field, named "index".
071   */
072  public static TypeCode type()
073  {
074    if (typeCode == null)
075      {
076        ORB orb = OrbRestricted.Singleton;
077        StructMember[] members = new StructMember[ 1 ];
078
079        TypeCode field;
080
081        field = orb.get_primitive_tc(TCKind.tk_ushort);
082        members [ 0 ] = new StructMember("index", field, null);
083        typeCode = orb.create_exception_tc(id(), "InvalidPolicy", members);
084      }
085    return typeCode;
086  }
087
088  /**
089  * Insert the InvalidPolicy into the given Any.
090  * This method uses the InvalidPolicyHolder.
091  *
092  * @param any the Any to insert into.
093  * @param that the InvalidPolicy to insert.
094  */
095  public static void insert(Any any, InvalidPolicy that)
096  {
097    any.insert_Streamable(new InvalidPolicyHolder(that));
098  }
099
100  /**
101   * Extract the InvalidPolicy from given Any.
102   * This method uses the InvalidPolicyHolder.
103   *
104   * @throws BAD_OPERATION if the passed Any does not contain InvalidPolicy.
105   */
106  public static InvalidPolicy extract(Any any)
107  {
108    try
109      {
110        return ((InvalidPolicyHolder) any.extract_Streamable()).value;
111      }
112    catch (ClassCastException cex)
113      {
114        BAD_OPERATION bad = new BAD_OPERATION("InvalidPolicy expected");
115        bad.minor = Minor.Any;        
116        bad.initCause(cex);
117        throw bad;
118      }
119  }
120
121  /**
122   * Get the InvalidPolicy repository id.
123   *
124   * @return "IDL:omg.org/PortableServer/POA/InvalidPolicy:1.0", always.
125   */
126  public static String id()
127  {
128    return "IDL:omg.org/PortableServer/POA/InvalidPolicy:1.0";
129  }
130
131  /**
132   * Read the exception from the CDR intput stream.
133   *
134   * @param input a org.omg.CORBA.portable stream to read from.
135   */
136  public static InvalidPolicy read(InputStream input)
137  {
138    // Read the exception repository id.
139    input.read_string();
140    InvalidPolicy value = new InvalidPolicy();
141
142    value.index = input.read_short();
143    return value;
144  }
145
146  /**
147   * Write the exception to the CDR output stream.
148   *
149   * @param output a org.omg.CORBA.portable stream stream to write into.
150   * @param value a value to write.
151   */
152  public static void write(OutputStream output, InvalidPolicy value)
153  {
154    // Write the exception repository id.
155    output.write_string(id());
156    output.write_short(value.index);
157  }
158}