01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 2 of the License, or
12: * (at your option) any later version.
13: *
14: * Resin Open Source is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17: * of NON-INFRINGEMENT. See the GNU General Public License for more
18: * details.
19: *
20: * You should have received a copy of the GNU General Public License
21: * along with Resin Open Source; if not, write to the
22: *
23: * Free Software Foundation, Inc.
24: * 59 Temple Place, Suite 330
25: * Boston, MA 02111-1307 USA
26: *
27: * @author Scott Ferguson
28: */
29:
30: package com.caucho.server.rewrite;
31:
32: import com.caucho.server.dispatch.ForwardFilterChain;
33: import com.caucho.config.ConfigException;
34:
35: import javax.servlet.FilterChain;
36: import java.util.regex.Matcher;
37:
38: public class ForwardRule extends AbstractRuleWithConditions {
39: private String _target;
40:
41: protected ForwardRule(RewriteDispatch rewriteDispatch) {
42: super (rewriteDispatch);
43: }
44:
45: public String getTagName() {
46: return "forward";
47: }
48:
49: public void setTarget(String target) {
50: _target = target;
51: }
52:
53: @Override
54: public String rewrite(String uri, Matcher matcher) {
55: return matcher.replaceAll(_target);
56: }
57:
58: @Override
59: public FilterChain dispatch(String uri, String queryString,
60: FilterChain accept, FilterChainMapper next) {
61: if (queryString == null)
62: return new ForwardFilterChain(uri);
63:
64: if (uri.indexOf('?') >= 0)
65: return new ForwardFilterChain(uri + "&" + queryString);
66: else
67: return new ForwardFilterChain(uri + "?" + queryString);
68: }
69:
70: @Override
71: public void init() throws ConfigException {
72: super .init();
73:
74: required(_target, "target");
75: }
76: }
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