1 /*
2 * Copyright (c) 2002-2018, 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.modules.multiview.business.record.column;
35
36 import java.io.Serializable;
37 import java.util.Comparator;
38 import java.util.Date;
39
40 import org.apache.commons.lang3.math.NumberUtils;
41
42 /**
43 * Comparator for RecordColumnCell objects
44 */
45 public class RecordColumnCellComparator implements Comparator<RecordColumnCell>, Serializable
46 {
47 // Generated UID
48 private static final long serialVersionUID = -7519611978697011989L;
49
50 // Variables
51 private final String _strSortKey;
52
53 /**
54 * Constructor
55 *
56 * @param strSortKey
57 * The key used to sort the RecordColumnCell
58 */
59 public RecordColumnCellComparator( String strSortKey )
60 {
61 _strSortKey = strSortKey;
62 }
63
64 /**
65 * {@inheritDoc}
66 */
67 @Override
68 public int compare( RecordColumnCell recordColumnCellOne, RecordColumnCell recordColumnCellTwo )
69 {
70 int nComparisonResult = NumberUtils.INTEGER_ZERO;
71
72 if ( recordColumnCellOne == null )
73 {
74 if ( recordColumnCellTwo != null )
75 {
76 nComparisonResult = NumberUtils.INTEGER_MINUS_ONE;
77 }
78 }
79 else
80 {
81 if ( recordColumnCellTwo == null )
82 {
83 nComparisonResult = NumberUtils.INTEGER_ONE;
84 }
85 else
86 {
87 Object objectOne = recordColumnCellOne.getRecordColumnCellValueByName( _strSortKey );
88 Object objectTwo = recordColumnCellTwo.getRecordColumnCellValueByName( _strSortKey );
89
90 nComparisonResult = compareRecordColumnCellObject( objectOne, objectTwo );
91 }
92 }
93
94 return nComparisonResult;
95 }
96
97 /**
98 * Compare two RecordColumnCell object values by converting them as String
99 *
100 * @param objectOne
101 * The first object to compare
102 * @param objectTwo
103 * The second object to compare
104 * @return the result of the comparison of the two given objects
105 */
106 private int compareRecordColumnCellObject( Object objectOne, Object objectTwo )
107 {
108 int nComparisonResult = NumberUtils.INTEGER_ZERO;
109
110 if ( objectOne == null )
111 {
112 if ( objectTwo != null )
113 {
114 nComparisonResult = NumberUtils.INTEGER_MINUS_ONE;
115 }
116 }
117 else
118 {
119 if ( objectTwo == null )
120 {
121 nComparisonResult = NumberUtils.INTEGER_ONE;
122 }
123 else
124 {
125 nComparisonResult = compareObject( objectOne, objectTwo );
126 }
127 }
128
129 return nComparisonResult;
130 }
131
132 /**
133 * Make the comparison between the two given object. If there are both Date a comparison will be make on the two Dates otherwise it their comparison as
134 * String which will be made
135 *
136 * @param objectOne
137 * The first object to compare
138 * @param objectTwo
139 * The second object to compare
140 * @return the result of the comparison between the two given objects
141 */
142 private int compareObject( Object objectOne, Object objectTwo )
143 {
144 int nComparisonResult = NumberUtils.INTEGER_ZERO;
145
146 if ( objectOne instanceof Date && objectTwo instanceof Date )
147 {
148 Date dateOne = (Date) objectOne;
149 Date dateTwo = (Date) objectTwo;
150
151 nComparisonResult = dateOne.compareTo( dateTwo );
152 }
153 else
154 {
155 String strObjectOneRepresentation = String.valueOf( objectOne );
156 String strObjectTwoRepresentation = String.valueOf( objectTwo );
157
158 nComparisonResult = strObjectOneRepresentation.compareTo( strObjectTwoRepresentation );
159 }
160
161 return nComparisonResult;
162 }
163 }