View Javadoc

1   /**
2    * This file Copyright (c) 2014 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  import org.apache.commons.lang.StringUtils;
40  
41  /**
42   * Virtual uri mapping implementation which combines functionality of {@link HostBasedVirtualURIMapping} and {@link RegexpVirtualURIMapping}.
43   */
44  public class HostBasedRegexpVirtualURIMapping extends HostBasedVirtualURIMapping implements QueryAwareVirtualURIMapping {
45  
46      private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(HostBasedRegexpVirtualURIMapping.class);
47      protected Pattern regexp;
48  
49      @Override
50      public MappingResult mapURI(String uri) {
51          return this.mapURI(uri, null);
52      }
53  
54      @Override
55      public MappingResult mapURI(final String uri, String queryString) {
56  
57          if (regexp != null) {
58              final Matcher matcher;
59              if (queryString != null) {
60                  matcher = regexp.matcher(uri + "?" + queryString);
61              } else {
62                  matcher = regexp.matcher(uri);
63              }
64  
65              if (matcher.find()) {
66                  final MappingResult r = new MappingResult();
67                  String hostMappping = this.tryToMapHost();
68                  String replaced;
69                  try {
70                      if (StringUtils.isNotEmpty(hostMappping)) {
71                          replaced = matcher.replaceAll(hostMappping);
72                      } else {
73                          replaced = matcher.replaceAll(toURI);
74                      }
75  
76                      r.setLevel(matcher.groupCount() + 1);
77                      r.setToURI(replaced);
78                      return r;
79                  } catch (IndexOutOfBoundsException e) {
80                      log.warn("{} misconfigured: {}", toString(), e.getMessage());
81                  }
82              }
83          }
84          return null;
85      }
86  
87      @Override
88      public void setFromURI(String fromURI) {
89          this.fromURI = fromURI;
90          this.regexp = Pattern.compile(fromURI);
91      }
92  
93  }