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1   /**
2    * This file Copyright (c) 2003-2010 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.util;
35  
36  import info.magnolia.context.MgnlContext;
37  import org.apache.commons.lang.StringUtils;
38  
39  /**
40   * @author gjoseph
41   * @version $Revision: $ ($Author: $)
42   */
43  public class SelectorUtil {
44      /**
45       * <p>
46       * get selector as requested from the URI. The selector is the part between the handle and the extension.
47       * selector("http://server/a.x.1.f.4.html") = "x.1.f.4"
48       * </p>
49       * <strong>Warning - this might change in the future - see MAGNOLIA-2343 for details.</strong>
50       *
51       * @return selector String as requested from the URI
52       */
53      public static String getSelector() {
54          return MgnlContext.getAggregationState().getSelector();
55      }
56  
57      /**
58       * Get the selector by index
59       * <strong>Warning - this might change in the future - see MAGNOLIA-2343 for details.</strong>
60       *
61       * @return the selector value
62       */
63      public static String getSelector(int index) {
64          String[] selectors = StringUtils.split(getSelector(), ".");
65          if (selectors.length > index) {
66              return selectors[index];
67          }
68          return null;
69      }
70  }