01: /* ***** BEGIN LICENSE BLOCK *****
02: * Version: MPL 1.1
03: * The contents of this file are subject to the Mozilla Public License Version
04: * 1.1 (the "License"); you may not use this file except in compliance with
05: * the License. You may obtain a copy of the License at
06: * http://www.mozilla.org/MPL/
07: *
08: * Software distributed under the License is distributed on an "AS IS" basis,
09: * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
10: * for the specific language governing rights and limitations under the
11: * License.
12: *
13: * The Original Code is Riot.
14: *
15: * The Initial Developer of the Original Code is
16: * Neteye GmbH.
17: * Portions created by the Initial Developer are Copyright (C) 2006
18: * the Initial Developer. All Rights Reserved.
19: *
20: * Contributor(s):
21: * Felix Gnass [fgnass at neteye dot de]
22: *
23: * ***** END LICENSE BLOCK ***** */
24: package org.riotfamily.common.web.filter;
25:
26: import java.io.IOException;
27:
28: import javax.servlet.FilterChain;
29: import javax.servlet.ServletException;
30: import javax.servlet.http.HttpServletRequest;
31: import javax.servlet.http.HttpServletResponse;
32:
33: /**
34: * Acts like a {@link FilterChain}, just for FilterPlugins.
35: *
36: * @author Felix Gnass [fgnass at neteye dot de]
37: * @since 6.4
38: */
39: public class PluginChain {
40:
41: private FilterChain filterChain;
42:
43: private FilterPlugin[] plugins;
44:
45: private int nextPlugin = 0;
46:
47: public PluginChain(FilterChain filterChain, FilterPlugin[] plugins) {
48: this .filterChain = filterChain;
49: this .plugins = plugins;
50: }
51:
52: public void doFilter(HttpServletRequest request,
53: HttpServletResponse response) throws IOException,
54: ServletException {
55:
56: if (nextPlugin < plugins.length) {
57: plugins[nextPlugin++].doFilter(request, response, this);
58: } else {
59: filterChain.doFilter(request, response);
60: }
61: }
62: }
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