001 /* DynFixedHelper.java --
002 Copyright (C) 2005, 2006 Free Software Foundation, Inc.
003
004 This file is part of GNU Classpath.
005
006 GNU Classpath is free software; you can redistribute it and/or modify
007 it under the terms of the GNU General Public License as published by
008 the Free Software Foundation; either version 2, or (at your option)
009 any later version.
010
011 GNU Classpath is distributed in the hope that it will be useful, but
012 WITHOUT ANY WARRANTY; without even the implied warranty of
013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014 General Public License for more details.
015
016 You should have received a copy of the GNU General Public License
017 along with GNU Classpath; see the file COPYING. If not, write to the
018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019 02110-1301 USA.
020
021 Linking this library statically or dynamically with other modules is
022 making a combined work based on this library. Thus, the terms and
023 conditions of the GNU General Public License cover the whole
024 combination.
025
026 As a special exception, the copyright holders of this library give you
027 permission to link this library with independent modules to produce an
028 executable, regardless of the license terms of these independent
029 modules, and to copy and distribute the resulting executable under
030 terms of your choice, provided that you also meet, for each linked
031 independent module, the terms and conditions of the license of that
032 module. An independent module is a module which is not derived from
033 or based on this library. If you modify this library, you may extend
034 this exception to your version of the library, but you are not
035 obligated to do so. If you do not wish to do so, delete this
036 exception statement from your version. */
037
038
039
040 package org.omg.DynamicAny;
041
042 import gnu.CORBA.OrbRestricted;
043
044 import org.omg.CORBA.BAD_OPERATION;
045 import org.omg.CORBA.BAD_PARAM;
046 import org.omg.CORBA.TypeCode;
047 import org.omg.CORBA.Any;
048 import org.omg.CORBA.portable.InputStream;
049 import org.omg.CORBA.MARSHAL;
050 import org.omg.CORBA.portable.OutputStream;
051
052 /**
053 * The helper operations for {@link DynFixed}. Following the 1.5 JDK
054 * specifications, DynFixed is always a local object, so the two methods of this
055 * helper ({@link #read} and {@link #write} are not in use, always throwing
056 * {@link MARSHAL}.
057 *
058 * @specnote always throwing MARSHAL in read and write ensures compatibility
059 * with other popular implementations like Sun's.
060 *
061 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
062 */
063 public abstract class DynFixedHelper
064 {
065 /**
066 * Cast the passed object into the DynFixed. As DynFixed is a local object,
067 * the method just uses java type cast.
068 *
069 * @param obj the object to narrow.
070 * @return narrowed instance.
071 * @throws BAD_PARAM if the passed object is not a DynFixed.
072 */
073 public static DynFixed narrow(org.omg.CORBA.Object obj)
074 {
075 try
076 {
077 return (DynFixed) obj;
078 }
079 catch (ClassCastException cex)
080 {
081 throw new BAD_PARAM(obj.getClass().getName() + " is not a DynFixed");
082 }
083 }
084
085 /**
086 * Narrow the given object to the DynFixed. For the objects that are
087 * always local, this operation does not differ from the ordinary
088 * {@link #narrow} (ClassCastException will be thrown if narrowing something
089 * different). See OMG issue 4158.
090 *
091 * @param obj the object to cast.
092 *
093 * @return the casted DynFixed.
094 *
095 * @since 1.5
096 */
097 public static DynFixed unchecked_narrow(org.omg.CORBA.Object obj)
098 {
099 return narrow(obj);
100 }
101
102 /**
103 * Get the type code of the {@link DynFixed}.
104 */
105 public static TypeCode type()
106 {
107 return OrbRestricted.Singleton.create_interface_tc(id(), "DynFixed");
108 }
109
110 /**
111 * Insert the DynFixed into the given Any.
112 *
113 * @param any the Any to insert into.
114 *
115 * @param that the DynFixed to insert.
116 */
117 public static void insert(Any any, DynFixed that)
118 {
119 any.insert_Object(that);
120 }
121
122 /**
123 * Extract the DynFixed from given Any.
124 *
125 * @throws BAD_OPERATION if the passed Any does not contain DynFixed.
126 */
127 public static DynFixed extract(Any any)
128 {
129 return narrow(any.extract_Object());
130 }
131
132 /**
133 * Get the DynFixed repository id.
134 *
135 * @return "IDL:omg.org/DynamicAny/DynFixed:1.0", always.
136 */
137 public static String id()
138 {
139 return "IDL:omg.org/DynamicAny/DynFixed:1.0";
140 }
141
142 /**
143 * This should read DynFixed from the CDR input stream, but (following the JDK
144 * 1.5 API) it does not.
145 *
146 * @param input a org.omg.CORBA.portable stream to read from.
147 *
148 * @specenote Sun throws the same exception.
149 *
150 * @throws MARSHAL always.
151 */
152 public static DynFixed read(InputStream input)
153 {
154 throw new MARSHAL(DynAnyFactoryHelper.not_applicable(id()));
155 }
156
157 /**
158 * This should read DynFixed from the CDR input stream, but (following the JDK
159 * 1.5 API) it does not.
160 *
161 * @param output a org.omg.CORBA.portable stream to write into.
162 *
163 * @specenote Sun throws the same exception.
164 *
165 * @throws MARSHAL always.
166 */
167 public static void write(OutputStream output, DynFixed value)
168 {
169 throw new MARSHAL(DynAnyFactoryHelper.not_applicable(id()));
170 }
171 }