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.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 * Lutece Message Interpolator
48 */
49 public class LuteceMessageInterpolator implements MessageInterpolator
50 {
51 private static final Pattern PATTERN_LOCALIZED_KEY = Pattern.compile( "#i18n\\{(.*?)\\}" );
52 private static Locale _locale;
53 private MessageInterpolator _interpolator;
54
55 /**
56 * Constructor;
57 */
58 public LuteceMessageInterpolator( )
59 {
60 _interpolator = Validation.byDefaultProvider( ).configure( ).getDefaultMessageInterpolator( );
61 _locale = LocaleService.getDefault( );
62 }
63
64 /**
65 * Sets the locale for messages
66 *
67 * @param locale
68 * The locale
69 */
70 public static void setLocale( Locale locale )
71 {
72 _locale = locale;
73 }
74
75 /**
76 * {@inheritDoc }
77 */
78 @Override
79 public String interpolate( String messageTemplate, Context context )
80 {
81 String strMessage = _interpolator.interpolate( messageTemplate, context );
82
83 return interpolateMessage( strMessage, _locale );
84 }
85
86 /**
87 * {@inheritDoc }
88 */
89 @Override
90 public String interpolate( String messageTemplate, Context context, Locale locale )
91 {
92 String strMessage = _interpolator.interpolate( messageTemplate, context );
93
94 return interpolateMessage( strMessage, locale );
95 }
96
97 /**
98 *
99 * @param strMessage
100 * The message to transform
101 * @param locale
102 * The Locale
103 * @return The transformed message
104 */
105 protected static String interpolateMessage( String strMessage, Locale locale )
106 {
107 Matcher matcher = PATTERN_LOCALIZED_KEY.matcher( strMessage );
108
109 if ( matcher.find( ) )
110 {
111 StringBuffer sb = new StringBuffer( );
112
113 do
114 {
115 matcher.appendReplacement( sb, getLocalizedString( matcher.group( 1 ), locale ) );
116 }
117 while ( matcher.find( ) );
118
119 matcher.appendTail( sb );
120
121 return sb.toString( );
122 }
123
124 return strMessage;
125 }
126 }