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1   /*
2    * Copyright (c) 2002-2022, City of 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.util.url;
35  
36  import org.apache.commons.lang3.StringUtils;
37  
38  // Java Util
39  import java.util.ArrayList;
40  import java.util.List;
41  
42  /**
43   * This class provides utility methods for the generation of Url String
44   */
45  public class UrlItem
46  {
47      // //////////////////////////////////////////////////////////////////////////
48      // Constants
49      private static final String ANCHOR_DELIMITER = "#";
50  
51      /** the root of the url. */
52      private String _strRoot;
53  
54      /** the list of parameters. */
55      private List<UrlParameterItem> _listParameters = new ArrayList<>( );
56      private String _strAnchor;
57  
58      /**
59       * Constructs an url with no parameters.
60       * 
61       * @param strRoot
62       *            The url's root.
63       */
64      public UrlItem( String strRoot )
65      {
66          _strRoot = strRoot;
67      }
68  
69      /**
70       * Add a Parameter to the url.
71       * 
72       * @param strName
73       *            The name of the parameter.
74       * @param strValue
75       *            The value of the parameter.
76       */
77      public void addParameter( String strName, String strValue )
78      {
79          _listParameters.add( new UrlParameterItem( strName, strValue ) );
80      }
81  
82      /**
83       * Add a Parameter to the url.
84       * 
85       * @param strName
86       *            The name of the parameter.
87       * @param nValue
88       *            The value of the parameter.
89       */
90      public void addParameter( String strName, int nValue )
91      {
92          _listParameters.add( new UrlParameterItem( strName, nValue ) );
93      }
94  
95      /**
96       * Return the url string.
97       * 
98       * @return String The url string.
99       */
100     public String getUrl( )
101     {
102         StringBuilder urlCode = new StringBuilder( _strRoot );
103 
104         boolean bFirst = ( _strRoot.indexOf( '?' ) == -1 );
105 
106         for ( UrlParameterItem parameter : _listParameters )
107         {
108             // Add a ? or & to the root url if it does already contains one
109             urlCode.append( parameter.getCode( bFirst ) );
110             bFirst = false;
111         }
112 
113         if ( ( getAnchor( ) != null ) && !getAnchor( ).equals( StringUtils.EMPTY ) )
114         {
115             urlCode.append( ANCHOR_DELIMITER );
116             urlCode.append( getAnchor( ) );
117         }
118 
119         return urlCode.toString( );
120     }
121 
122     /**
123      * Return the url string.
124      * 
125      * @return String The url string with entity code.
126      */
127     public String getUrlWithEntity( )
128     {
129         StringBuilder urlCode = new StringBuilder( _strRoot );
130 
131         boolean bFirst = ( _strRoot.indexOf( '?' ) == -1 );
132 
133         for ( UrlParameterItem parameter : _listParameters )
134         {
135             // Add a ? or & to the root url if it does already contains one
136             urlCode.append( parameter.getCodeEntity( bFirst ) );
137             bFirst = false;
138         }
139 
140         if ( StringUtils.isNotEmpty( getAnchor( ) ) )
141         {
142             urlCode.append( ANCHOR_DELIMITER + getAnchor( ) );
143         }
144 
145         return urlCode.toString( );
146     }
147 
148     /**
149      * Get the anchor
150      * 
151      * @return the _srtAnchor
152      */
153     public String getAnchor( )
154     {
155         return _strAnchor;
156     }
157 
158     /**
159      * Set the anchor
160      * 
161      * @param strAnchorName
162      *            the _srtAnchor to set
163      */
164     public void setAnchor( String strAnchorName )
165     {
166         _strAnchor = strAnchorName;
167     }
168 
169     /**
170      * {@inheritDoc}
171      */
172     @Override
173     public String toString( )
174     {
175         return getUrl( );
176     }
177 }