1 /*
2 * Copyright (c) 2002-2014, 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.util.beanvalidation;
35
36 import static fr.paris.lutece.portal.service.i18n.I18nService.getLocalizedString;
37 import fr.paris.lutece.portal.web.l10n.LocaleService;
38
39 import java.util.Locale;
40 import java.util.regex.Matcher;
41 import java.util.regex.Pattern;
42
43 import javax.validation.MessageInterpolator;
44 import javax.validation.Validation;
45
46
47 /**
48 * Lutece Message Interpolator
49 */
50 public class LuteceMessageInterpolator implements MessageInterpolator
51 {
52 private static final Pattern PATTERN_LOCALIZED_KEY = Pattern.compile( "#i18n\\{(.*?)\\}" );
53 private static Locale _locale;
54 private MessageInterpolator _interpolator;
55
56 /**
57 * Constructor;
58 */
59 public LuteceMessageInterpolator( )
60 {
61 _interpolator = Validation.byDefaultProvider( ).configure( ).getDefaultMessageInterpolator( );
62 _locale = LocaleService.getDefault( );
63 }
64
65 /**
66 * Sets the locale for messages
67 * @param locale The locale
68 */
69 public static void setLocale( Locale locale )
70 {
71 _locale = locale;
72 }
73
74 /**
75 * {@inheritDoc }
76 */
77 @Override
78 public String interpolate( String messageTemplate, Context context )
79 {
80 String strMessage = _interpolator.interpolate( messageTemplate, context );
81
82 return interpolateMessage( strMessage, _locale );
83 }
84
85 /**
86 * {@inheritDoc }
87 */
88 @Override
89 public String interpolate( String messageTemplate, Context context, Locale locale )
90 {
91 String strMessage = _interpolator.interpolate( messageTemplate, context );
92
93 return interpolateMessage( strMessage, locale );
94 }
95
96 /**
97 *
98 * @param strMessage The message to transform
99 * @param locale The Locale
100 * @return The transformed message
101 */
102 protected static String interpolateMessage( String strMessage, Locale locale )
103 {
104 Matcher matcher = PATTERN_LOCALIZED_KEY.matcher( strMessage );
105
106 if ( matcher.find( ) )
107 {
108 StringBuffer sb = new StringBuffer( );
109
110 do
111 {
112 matcher.appendReplacement( sb, getLocalizedString( matcher.group( 1 ), locale ) );
113 }
114 while ( matcher.find( ) );
115
116 matcher.appendTail( sb );
117
118 return sb.toString( );
119 }
120
121 return strMessage;
122 }
123 }