001/* ValueMemberHelper.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.CORBA; 040 041import gnu.CORBA.Minor; 042import gnu.CORBA.OrbRestricted; 043import gnu.CORBA.TypeCodeHelper; 044 045import org.omg.CORBA.portable.InputStream; 046import 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 */ 053public 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}