001 /* _NamingContextExtStub.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.CosNaming;
040
041 import gnu.CORBA.NamingService.NameTransformer;
042
043 import org.omg.CORBA.MARSHAL;
044 import org.omg.CORBA.ObjectHelper;
045 import org.omg.CORBA.portable.ApplicationException;
046 import org.omg.CORBA.portable.Delegate;
047 import org.omg.CORBA.portable.InputStream;
048 import org.omg.CORBA.portable.OutputStream;
049 import org.omg.CORBA.portable.RemarshalException;
050 import org.omg.CosNaming.NamingContextExtPackage.AddressHelper;
051 import org.omg.CosNaming.NamingContextExtPackage.InvalidAddress;
052 import org.omg.CosNaming.NamingContextExtPackage.InvalidAddressHelper;
053 import org.omg.CosNaming.NamingContextExtPackage.StringNameHelper;
054 import org.omg.CosNaming.NamingContextExtPackage.URLStringHelper;
055 import org.omg.CosNaming.NamingContextPackage.CannotProceed;
056 import org.omg.CosNaming.NamingContextPackage.InvalidName;
057 import org.omg.CosNaming.NamingContextPackage.InvalidNameHelper;
058 import org.omg.CosNaming.NamingContextPackage.NotFound;
059
060 /**
061 * The extended naming context stub (proxy), used on the client side.
062 * The most of the {@link NamingContextExt} methods contain the code
063 * for remote invocaton. However as remote invocation is potencially an
064 * expensive step, some trivial methods, not requiring access to the
065 * naming database, are handled locally (see the method descriptions for
066 * details).
067 *
068 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
069 */
070 public class _NamingContextExtStub
071 extends _NamingContextStub
072 implements NamingContextExt
073 {
074 /**
075 * Use serialVersionUID (v1.4) for interoperability.
076 */
077 private static final long serialVersionUID = 6333293895664182866L;
078
079 /**
080 * This stub can be the base of the two CORBA objects, so it
081 * has two repository ids.
082 */
083 private static String[] __ids =
084 { NamingContextExtHelper.id(), NamingContextHelper.id() };
085
086 /**
087 * The local name form converter.
088 */
089 private NameTransformer converter = new NameTransformer();
090
091 /**
092 * Create the naming context stub.
093 */
094 public _NamingContextExtStub()
095 {
096 super();
097 }
098
099 /**
100 * Create the naming context stub with the given delegate.
101 */
102 _NamingContextExtStub(Delegate delegate)
103 {
104 super(delegate);
105 }
106
107 /**
108 * Return the array of repository ids for this object.
109 * This stub can be the base of the two CORBA objects, so it
110 * has two repository ids, for {@link NamingContext} and
111 * for {@link NamingContextExt}.
112 */
113 public String[] _ids()
114 {
115 return (String[]) __ids.clone();
116 }
117
118 /** {@inheritDoc} */
119 public org.omg.CORBA.Object resolve_str(String a_name_string)
120 throws NotFound, CannotProceed, InvalidName
121 {
122 InputStream in = null;
123 try
124 {
125 OutputStream _out = _request("resolve_str", true);
126 StringNameHelper.write(_out, a_name_string);
127 in = _invoke(_out);
128
129 return ObjectHelper.read(in);
130 }
131 catch (ApplicationException ex)
132 {
133 in = ex.getInputStream();
134
135 String id = ex.getId();
136 throw4(in, id);
137
138 // Should never happen.
139 throw new InternalError();
140 }
141 catch (RemarshalException _rm)
142 {
143 return resolve_str(a_name_string);
144 }
145 finally
146 {
147 _releaseReply(in);
148 }
149 }
150
151 /**
152 * Converts the string name representation into the array
153 * name representation.
154 *
155 * This method is handled locally.
156 */
157 public NameComponent[] to_name(String a_name_string)
158 throws InvalidName
159 {
160 return converter.toName(a_name_string);
161 }
162
163 /**
164 * Convert the name array representation to the name string
165 * representation.
166 *
167 * This method is handled locally.
168 */
169 public String to_string(NameComponent[] a_name)
170 throws InvalidName
171 {
172 return converter.toString(a_name);
173 }
174
175 /** {@inheritDoc} */
176 public String to_url(String an_address, String a_name_string)
177 throws InvalidAddress, InvalidName
178 {
179 InputStream in = null;
180 try
181 {
182 OutputStream _out = _request("to_url", true);
183 AddressHelper.write(_out, an_address);
184 StringNameHelper.write(_out, a_name_string);
185 in = _invoke(_out);
186
187 return URLStringHelper.read(in);
188 }
189 catch (ApplicationException ex)
190 {
191 in = ex.getInputStream();
192
193 String id = ex.getId();
194 if (id.equals(InvalidAddressHelper.id()))
195 throw InvalidAddressHelper.read(in);
196 else if (id.equals(InvalidNameHelper.id()))
197 throw InvalidNameHelper.read(in);
198 else
199 throw new MARSHAL(id);
200 }
201 catch (RemarshalException _rm)
202 {
203 return to_url(an_address, a_name_string);
204 }
205 finally
206 {
207 _releaseReply(in);
208 }
209 }
210 }