1 /**
2 * This file Copyright (c) 2003-2011 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.cms.beans.config;
35
36 import java.util.regex.Matcher;
37 import java.util.regex.Pattern;
38
39 /**
40 * Query aware virtual uri mapping implementation that uses regular expressions in fromURI/toURI. When using regular expression in
41 * <code>fromURI</code>, <code>toURI</code> can contain references to the regexp matches. For example:
42 *
43 * <pre>
44 * fromURI=/products/([0-9A-Z]+)\.html\?available(true|false)
45 * toURI=/product/detail.html?productId=$1&available=$2
46 * </pre>
47 *
48 * @author Fabrizio Giustina
49 * @author philipp
50 * @version $Id: DefaultVirtualURIMapping.java 10295 2007-08-02 21:33:58Z fgiust $
51 */
52 public class RegexpVirtualURIMapping implements QueryAwareVirtualURIMapping {
53 private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(RegexpVirtualURIMapping.class);
54
55 private String fromURI;
56 private String toURI;
57 private Pattern regexp;
58
59 public MappingResult mapURI(final String uri) {
60 return mapURI(uri, null);
61 }
62
63 public MappingResult mapURI(final String uri, String queryString) {
64
65 if (regexp != null) {
66 final Matcher matcher;
67 if(queryString != null){
68 matcher = regexp.matcher(uri + "?" + queryString);
69 }else{
70 matcher = regexp.matcher(uri);
71 }
72
73 if (matcher.find()) {
74 final MappingResult r = new MappingResult();
75 final int matcherCount = matcher.groupCount();
76 try {
77 final String replaced = matcher.replaceAll(toURI);
78
79 r.setLevel(matcherCount + 1);
80 r.setToURI(replaced);
81 return r;
82 } catch (IndexOutOfBoundsException e) {
83 log.warn("{} misconfigured: {}", toString(), e.getMessage());
84 }
85 }
86 }
87
88 return null;
89 }
90
91 public String getFromURI() {
92 return this.fromURI;
93 }
94
95 public void setFromURI(String fromURI) {
96 this.fromURI = fromURI;
97
98 this.regexp = Pattern.compile(fromURI);
99 }
100
101 public String getToURI() {
102 return this.toURI;
103 }
104
105 public void setToURI(String toURI) {
106 this.toURI = toURI;
107 }
108
109 public String toString() {
110 return "RegexpVirtualURIMapping[" + fromURI + " --> " + toURI + "]";
111 }
112
113 }