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1   /*
2    * Copyright (c) 2002-2017, Mairie de Paris
3    * All rights reserved.
4    *
5    * Redistribution and use in source and binary forms, with or without
6    * modification, are permitted provided that the following conditions
7    * are met:
8    *
9    *  1. Redistributions of source code must retain the above copyright notice
10   *     and the following disclaimer.
11   *
12   *  2. Redistributions in binary form must reproduce the above copyright notice
13   *     and the following disclaimer in the documentation and/or other materials
14   *     provided with the distribution.
15   *
16   *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
17   *     contributors may be used to endorse or promote products derived from
18   *     this software without specific prior written permission.
19   *
20   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
24   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30   * POSSIBILITY OF SUCH DAMAGE.
31   *
32   * License 1.0
33   */
34  package fr.paris.lutece.plugins.directory.utils;
35  
36  import org.apache.commons.lang.StringUtils;
37  
38  import java.util.ArrayList;
39  import java.util.HashMap;
40  import java.util.List;
41  import java.util.Map;
42  
43  /**
44   *
45   * UrlUtils
46   *
47   */
48  public final class UrlUtils
49  {
50      private static final String INTERROGATION_MARK = "?";
51      private static final String AMPERSAND = "&";
52      private static final String EQUAL = "=";
53  
54      /**
55       * Private constructor
56       */
57      private UrlUtils( )
58      {
59      }
60  
61      /**
62       * Get the parameter map from a given url
63       * 
64       * @param strUrl
65       *            the url
66       * @return the parameter map
67       */
68      public static Map<String, List<String>> getMapParametersFromUrl( String strUrl )
69      {
70          Map<String, List<String>> mapParameters = new HashMap<String, List<String>>( );
71  
72          if ( StringUtils.isNotBlank( strUrl ) && ( strUrl.indexOf( INTERROGATION_MARK ) > 0 ) )
73          {
74              String strUrlParameters = strUrl.substring( strUrl.indexOf( INTERROGATION_MARK ) + 1 );
75              String [ ] listParameters = strUrlParameters.split( AMPERSAND );
76  
77              if ( ( listParameters != null ) && ( listParameters.length > 0 ) )
78              {
79                  for ( String strParameter : listParameters )
80                  {
81                      String [ ] parameter = strParameter.split( EQUAL );
82  
83                      if ( ( parameter != null ) && ( parameter.length == 2 ) )
84                      {
85                          List<String> listParameterValues = mapParameters.get( parameter [0] );
86  
87                          if ( ( listParameterValues != null ) && !listParameterValues.isEmpty( ) )
88                          {
89                              listParameterValues.add( parameter [1] );
90                          }
91                          else
92                          {
93                              listParameterValues = new ArrayList<String>( );
94                              listParameterValues.add( parameter [1] );
95                              mapParameters.put( parameter [0], listParameterValues );
96                          }
97                      }
98                  }
99              }
100         }
101 
102         return mapParameters;
103     }
104 }