001 /* CurrentHelper.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 package org.omg.PortableInterceptor;
040
041 import gnu.CORBA.Minor;
042 import gnu.CORBA.OrbRestricted;
043
044 import org.omg.CORBA.Any;
045 import org.omg.CORBA.BAD_OPERATION;
046 import org.omg.CORBA.BAD_PARAM;
047 import org.omg.CORBA.MARSHAL;
048 import org.omg.CORBA.TypeCode;
049 import org.omg.CORBA.portable.InputStream;
050 import org.omg.CORBA.portable.OutputStream;
051
052 /**
053 * The helper operations for the CORBA object {@link Current}.
054 *
055 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
056 */
057 public abstract class CurrentHelper
058 {
059 /**
060 * Get the type code of the {@link Current}.
061 */
062 public static TypeCode type()
063 {
064 return OrbRestricted.Singleton.create_interface_tc(id(), "Current");
065 }
066
067 /**
068 * Insert the Current into the given Any.
069 *
070 * @param any the Any to insert into.
071 * @param that the Current to insert.
072 */
073 public static void insert(Any any, Current that)
074 {
075 any.insert_Object(that);
076 }
077
078 /**
079 * Extract the Current from given Any.
080 *
081 * @throws BAD_OPERATION if the passed Any does not contain Current.
082 */
083 public static Current extract(Any any)
084 {
085 return narrow(any.extract_Object());
086 }
087
088 /**
089 * Get the Current repository id.
090 *
091 * @return "org.omg.PortableInterceptor.CurrentOperations", always.
092 */
093 public static String id()
094 {
095 return "IDL:omg.org/PortableInterceptor/Current:1.0";
096 }
097
098 /**
099 * Cast the passed object into the Current.
100 *
101 * @param obj the object to narrow.
102 * @return narrowed instance.
103 * @throws BAD_PARAM if the passed object is not a Current.
104 */
105 public static Current narrow(org.omg.CORBA.Object obj)
106 {
107 if (obj == null)
108 {
109 return null;
110 }
111 else if (obj instanceof Current)
112 {
113 return (Current) obj;
114 }
115 else
116 {
117 throw new BAD_PARAM("Not a Current");
118 }
119 }
120
121 /**
122 * Narrow the given object to the Current. For the objects that are
123 * always local, this operation does not differ from the ordinary
124 * {@link #narrow} (ClassCastException will be thrown if narrowing something
125 * different). See also OMG issue 4158.
126 *
127 * @param obj the object to cast.
128 *
129 * @return the casted Current.
130 *
131 * @since 1.5
132 */
133 public static Current unchecked_narrow(org.omg.CORBA.Object obj)
134 {
135 return narrow(obj);
136 }
137
138 /**
139 * Not supported for compatibility reasons.
140 *
141 * @specnote Not supported by Sun at least till jdk 1.5 inclusive.
142 *
143 * @throws MARSHAL always.
144 */
145 public static Current read(InputStream input)
146 {
147 MARSHAL m = new MARSHAL("Inappropriate");
148 m.minor = Minor.Inappropriate;
149 throw m;
150 }
151
152 /**
153 * Not supported for compatibility reasons.
154 *
155 * @specnote Not supported by Sun at least till jdk 1.5 inclusive.
156 *
157 * @throws MARSHAL always.
158 */
159 public static void write(OutputStream output, Current value)
160 {
161 MARSHAL m = new MARSHAL("Inappropriate");
162 m.minor = Minor.Inappropriate;
163 throw m;
164 }
165 }