001 /* ValueMemberHelper.java --
002 Copyright (C) 2005 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.CORBA;
040
041 import gnu.CORBA.Minor;
042 import gnu.CORBA.OrbRestricted;
043 import gnu.CORBA.TypeCodeHelper;
044
045 import org.omg.CORBA.portable.InputStream;
046 import org.omg.CORBA.portable.OutputStream;
047
048 /**
049 * The helper operations for the value member.
050 *
051 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
052 */
053 public abstract class ValueMemberHelper
054 {
055 /**
056 * The cached typecode value, computed once.
057 */
058 private static TypeCode typeCode = null;
059
060 /**
061 * Used when creating typecodes with recursive value members.
062 */
063 private static boolean active = false;
064
065 /**
066 * Insert the value member into the given Any.
067 */
068 public static void insert(Any a, ValueMember that)
069 {
070 OutputStream out = a.create_output_stream();
071 a.type(type());
072 write(out, that);
073 a.read_value(out.create_input_stream(), type());
074 }
075
076 /**
077 * Extract the value member from the given Any.
078 */
079 public static ValueMember extract(Any a)
080 {
081 return read(a.create_input_stream());
082 }
083
084 /**
085 * Create a typecode for this value member.
086 */
087 public static synchronized TypeCode type()
088 {
089 if (typeCode == null)
090 {
091 synchronized (TypeCode.class)
092 {
093 if (typeCode == null)
094 {
095 ORB orb = OrbRestricted.Singleton;
096
097 if (active)
098 {
099 return orb.create_recursive_tc(id());
100 }
101 active = true;
102
103 StructMember[] members = new StructMember[ 7 ];
104 TypeCode member;
105 member = orb.create_string_tc(0);
106 member =
107 orb.create_alias_tc(IdentifierHelper.id(), "Identifier",
108 member
109 );
110 members [ 0 ] = new StructMember("name", member, null);
111 member = orb.create_string_tc(0);
112 member =
113 orb.create_alias_tc(RepositoryIdHelper.id(), "RepositoryId",
114 member
115 );
116 members [ 1 ] = new StructMember("id", member, null);
117 member = orb.create_string_tc(0);
118 member =
119 orb.create_alias_tc(RepositoryIdHelper.id(), "RepositoryId",
120 member
121 );
122 members [ 2 ] = new StructMember("defined_in", member, null);
123 member = orb.create_string_tc(0);
124 member =
125 orb.create_alias_tc(VersionSpecHelper.id(), "VersionSpec",
126 member
127 );
128 members [ 3 ] = new StructMember("version", member, null);
129 member = orb.create_string_tc(0);
130 member = orb.get_primitive_tc(TCKind.tk_TypeCode);
131 members [ 4 ] = new StructMember("type", member, null);
132 member = IDLTypeHelper.type();
133 members [ 5 ] = new StructMember("type_def", member, null);
134 member = orb.get_primitive_tc(TCKind.tk_short);
135 member =
136 orb.create_alias_tc(VisibilityHelper.id(), "Visibility",
137 member
138 );
139 members [ 6 ] = new StructMember("access", member, null);
140 typeCode =
141 orb.create_struct_tc(ValueMemberHelper.id(), "ValueMember",
142 members
143 );
144 active = false;
145 }
146 }
147 }
148 return typeCode;
149 }
150
151 /**
152 * Return the ValueMember repository id.
153 *
154 * @return "IDL:omg.org/CORBA/ValueMember:1.0", always.
155 */
156 public static String id()
157 {
158 return "IDL:omg.org/CORBA/ValueMember:1.0";
159 }
160
161 /**
162 * Reads the value member from the given stream.
163 */
164 public static ValueMember read(InputStream istream)
165 {
166 try
167 {
168 ValueMember value = new ValueMember();
169 value.name = istream.read_string();
170 value.id = istream.read_string();
171 value.defined_in = istream.read_string();
172 value.version = istream.read_string();
173 value.type = TypeCodeHelper.read(istream);
174 value.type_def = IDLTypeHelper.read(istream);
175 value.access = istream.read_short();
176 return value;
177 }
178 catch (UserException ex)
179 {
180 MARSHAL m = new MARSHAL();
181 m.minor = Minor.UserException;
182 m.initCause(ex);
183 throw m;
184 }
185 }
186
187 /**
188 * Writes the value member to the given stream.
189 */
190 public static void write(OutputStream ostream, ValueMember value)
191 {
192 try
193 {
194 ostream.write_string(value.name);
195 ostream.write_string(value.id);
196 ostream.write_string(value.defined_in);
197 ostream.write_string(value.version);
198 TypeCodeHelper.write(ostream, value.type);
199 IDLTypeHelper.write(ostream, value.type_def);
200 ostream.write_short(value.access);
201 }
202 catch (UserException ex)
203 {
204 MARSHAL m = new MARSHAL();
205 m.minor = Minor.UserException;
206 m.initCause(ex);
207 throw m;
208 }
209 }
210 }