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 @Override 60 public MappingResult mapURI(final String uri) { 61 return mapURI(uri, null); 62 } 63 64 public MappingResult mapURI(final String uri, String queryString) { 65 66 if (regexp != null) { 67 final Matcher matcher; 68 if(queryString != null){ 69 matcher = regexp.matcher(uri + "?" + queryString); 70 }else{ 71 matcher = regexp.matcher(uri); 72 } 73 74 if (matcher.find()) { 75 final MappingResult r = new MappingResult(); 76 final int matcherCount = matcher.groupCount(); 77 try { 78 final String replaced = matcher.replaceAll(toURI); 79 80 r.setLevel(matcherCount + 1); 81 r.setToURI(replaced); 82 return r; 83 } catch (IndexOutOfBoundsException e) { 84 log.warn("{} misconfigured: {}", toString(), e.getMessage()); 85 } 86 } 87 } 88 89 return null; 90 } 91 92 public String getFromURI() { 93 return this.fromURI; 94 } 95 96 public void setFromURI(String fromURI) { 97 this.fromURI = fromURI; 98 99 this.regexp = Pattern.compile(fromURI); 100 } 101 102 public String getToURI() { 103 return this.toURI; 104 } 105 106 public void setToURI(String toURI) { 107 this.toURI = toURI; 108 } 109 110 @Override 111 public String toString() { 112 return "RegexpVirtualURIMapping[" + fromURI + " --> " + toURI + "]"; 113 } 114 115 }