001/* StartTlsRequest.java -- extended ldap TLS request
002   Copyright (C) 2006 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 javax.naming.ldap;
040
041import java.util.Iterator;
042
043import gnu.classpath.ServiceFactory;
044
045import javax.naming.NamingException;
046
047/**
048 * @since 1.4
049 */
050public class StartTlsRequest
051    implements ExtendedRequest
052{
053  private static final long serialVersionUID = 4441679576360753397L;
054
055  /**
056   * The assigned object identifier for this response.
057   */
058  public static final String OID = "1.3.6.1.4.1.1466.20037"; 
059
060  /**
061   * Create a new instance.
062   */
063  public StartTlsRequest()
064  {
065  }
066
067  /**
068   * Return the response identifier.  This is simply the value
069   * of the {@link #OID} field.
070   */
071  public String getID()
072  {
073    return OID;
074  }
075
076  /**
077   * Return the encoded value.  This implementation always returns null.
078   */
079  public byte[] getEncodedValue()
080  {
081    return null;
082  }
083
084  /**
085   * Create a new extended reponse object, using the standard service
086   * provider approach to load a provider.  The provider will be a subclass
087   * of StartTlsRequest with a no-argument constructor.  The key is
088   * "javax.naming.ldap.StartTlsRequest".
089   * @param id the identifier, must be {@link #OID} or null
090   * @param berValue ignored
091   * @param offset ignored
092   * @param length ignored
093   * @throws NamingException if there is a problem creating the response
094   */
095  public ExtendedResponse createExtendedResponse(String id, byte[] berValue,
096                                                 int offset, int length)
097      throws NamingException
098  {
099    if (id != null && ! OID.equals(id))
100      throw new NamingException("incorrect id: was \"" + id
101                                + "\", but expected: \"" + OID + "\"");
102    Iterator it = ServiceFactory.lookupProviders(StartTlsRequest.class);
103    if (it.hasNext())
104      return (ExtendedResponse) it.next();
105    throw new NamingException("couldn't find provider for "
106                              + "javax.naming.ldap.StartTlsRequest");
107  }
108}