1 /* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
2 *
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 package org.acegisecurity.securechannel;
17
18 import java.io.IOException;
19
20 import javax.servlet.ServletException;
21 import javax.servlet.ServletRequest;
22 import javax.servlet.ServletResponse;
23
24
25 /**
26 * May be used by a {@link ChannelProcessor} to launch a web channel.
27 *
28 * <P>
29 * <code>ChannelProcessor</code>s can elect to launch a new web channel
30 * directly, or they can delegate to another class. The
31 * <code>ChannelEntryPoint</code> is a pluggable interface to assist
32 * <code>ChannelProcessor</code>s in performing this delegation.
33 * </p>
34 *
35 * @author Ben Alex
36 * @version $Id: ChannelEntryPoint.java 1784 2007-02-24 21:00:24Z luke_t $
37 */
38 public interface ChannelEntryPoint {
39 //~ Methods ========================================================================================================
40
41 /**
42 * Commences a secure channel.<P>Implementations should modify the headers on the
43 * <code>ServletResponse</code> as necessary to commence the user agent using the implementation's supported
44 * channel type.</p>
45 *
46 * @param request that a <code>ChannelProcessor</code> has rejected
47 * @param response so that the user agent can begin using a new channel
48 *
49 * @throws IOException DOCUMENT ME!
50 * @throws ServletException DOCUMENT ME!
51 */
52 void commence(ServletRequest request, ServletResponse response)
53 throws IOException, ServletException;
54 }