%line | %branch | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
org.apache.commons.validator.DateValidator |
|
|
1 | /* |
|
2 | * $Id: DateValidator.java 366933 2006-01-07 22:51:01Z niallp $ |
|
3 | * $Rev: 366933 $ |
|
4 | * $Date: 2006-01-07 22:51:01 +0000 (Sat, 07 Jan 2006) $ |
|
5 | * |
|
6 | * ==================================================================== |
|
7 | * Copyright 2001-2006 The Apache Software Foundation |
|
8 | * |
|
9 | * Licensed under the Apache License, Version 2.0 (the "License"); |
|
10 | * you may not use this file except in compliance with the License. |
|
11 | * You may obtain a copy of the License at |
|
12 | * |
|
13 | * http://www.apache.org/licenses/LICENSE-2.0 |
|
14 | * |
|
15 | * Unless required by applicable law or agreed to in writing, software |
|
16 | * distributed under the License is distributed on an "AS IS" BASIS, |
|
17 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
|
18 | * See the License for the specific language governing permissions and |
|
19 | * limitations under the License. |
|
20 | */ |
|
21 | ||
22 | package org.apache.commons.validator; |
|
23 | ||
24 | import java.text.DateFormat; |
|
25 | import java.text.ParseException; |
|
26 | import java.text.SimpleDateFormat; |
|
27 | import java.util.Locale; |
|
28 | ||
29 | /** |
|
30 | * <p>Perform date validations.</p> |
|
31 | * <p> |
|
32 | * This class is a Singleton; you can retrieve the instance via the |
|
33 | * getInstance() method. |
|
34 | * </p> |
|
35 | * |
|
36 | * @since Validator 1.1 |
|
37 | */ |
|
38 | public class DateValidator { |
|
39 | ||
40 | /** |
|
41 | * Singleton instance of this class. |
|
42 | */ |
|
43 | 0 | private static final DateValidator DATE_VALIDATOR = new DateValidator(); |
44 | ||
45 | /** |
|
46 | * Returns the Singleton instance of this validator. |
|
47 | * @return A singleton instance of the DateValidator. |
|
48 | */ |
|
49 | public static DateValidator getInstance() { |
|
50 | 0 | return DATE_VALIDATOR; |
51 | } |
|
52 | ||
53 | /** |
|
54 | * Protected constructor for subclasses to use. |
|
55 | */ |
|
56 | protected DateValidator() { |
|
57 | 0 | super(); |
58 | 0 | } |
59 | ||
60 | /** |
|
61 | * <p>Checks if the field is a valid date. The pattern is used with |
|
62 | * <code>java.text.SimpleDateFormat</code>. If strict is true, then the |
|
63 | * length will be checked so '2/12/1999' will not pass validation with |
|
64 | * the format 'MM/dd/yyyy' because the month isn't two digits. |
|
65 | * The setLenient method is set to <code>false</code> for all.</p> |
|
66 | * |
|
67 | * @param value The value validation is being performed on. |
|
68 | * @param datePattern The pattern passed to <code>SimpleDateFormat</code>. |
|
69 | * @param strict Whether or not to have an exact match of the datePattern. |
|
70 | * @return true if the date is valid. |
|
71 | */ |
|
72 | public boolean isValid(String value, String datePattern, class="keyword">boolean strict) { |
|
73 | ||
74 | 0 | if (value == null |
75 | || datePattern == null |
|
76 | || datePattern.length() <= 0) { |
|
77 | ||
78 | 0 | return false; |
79 | } |
|
80 | ||
81 | 0 | SimpleDateFormat formatter = new SimpleDateFormat(datePattern); |
82 | 0 | formatter.setLenient(false); |
83 | ||
84 | try { |
|
85 | 0 | formatter.parse(value); |
86 | 0 | } catch(ParseException e) { |
87 | 0 | return false; |
88 | } |
|
89 | ||
90 | 0 | if (strict && (datePattern.length() != value.length())) { |
91 | 0 | return false; |
92 | } |
|
93 | ||
94 | 0 | return true; |
95 | } |
|
96 | ||
97 | /** |
|
98 | * <p>Checks if the field is a valid date. The <code>Locale</code> is |
|
99 | * used with <code>java.text.DateFormat</code>. The setLenient method |
|
100 | * is set to <code>false</code> for all.</p> |
|
101 | * |
|
102 | * @param value The value validation is being performed on. |
|
103 | * @param locale The locale to use for the date format, defaults to the default |
|
104 | * system default if null. |
|
105 | * @return true if the date is valid. |
|
106 | */ |
|
107 | public boolean isValid(String value, Locale locale) { |
|
108 | ||
109 | 0 | if (value == null) { |
110 | 0 | return false; |
111 | } |
|
112 | ||
113 | 0 | DateFormat formatter = null; |
114 | 0 | if (locale != null) { |
115 | 0 | formatter = DateFormat.getDateInstance(DateFormat.SHORT, locale); |
116 | } else { |
|
117 | 0 | formatter = |
118 | DateFormat.getDateInstance( |
|
119 | DateFormat.SHORT, |
|
120 | Locale.getDefault()); |
|
121 | } |
|
122 | ||
123 | 0 | formatter.setLenient(false); |
124 | ||
125 | try { |
|
126 | 0 | formatter.parse(value); |
127 | 0 | } catch(ParseException e) { |
128 | 0 | return false; |
129 | } |
|
130 | ||
131 | 0 | return true; |
132 | } |
|
133 | ||
134 | } |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |