001// Copyright 2009 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007//     http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014package org.apache.tapestry5.internal.beanvalidator;
015
016import java.util.Locale;
017
018import javax.validation.MessageInterpolator;
019
020import org.apache.tapestry5.ioc.services.ThreadLocale;
021/**
022 * The default message interpolation algorithm uses {@link Locale#getDefault()}. This behavior is not appropriate for Tapestry applications, 
023 * thus we need a {@link Locale} aware message interpolator.
024 */
025public class MessageInterpolatorImpl implements MessageInterpolator 
026{
027        private final MessageInterpolator delegate;
028        private final ThreadLocale threadLocale;
029        
030        public MessageInterpolatorImpl(MessageInterpolator delegate, ThreadLocale threadLocale) 
031        {
032                this.delegate = delegate;
033                this.threadLocale = threadLocale;
034        }
035
036        /**
037         * @see javax.validation.MessageInterpolator#interpolate(java.lang.String, javax.validation.MessageInterpolator.Context)
038         */
039        @Override
040        public String interpolate(String messageTemplate, Context context) 
041        {
042                return interpolate(messageTemplate, context, threadLocale.getLocale());
043        }
044
045        /**
046         * @see javax.validation.MessageInterpolator#interpolate(java.lang.String, javax.validation.MessageInterpolator.Context, java.util.Locale)
047         */
048        @Override
049        public String interpolate(String messageTemplate, Context context, Locale locale) 
050        {
051                return this.delegate.interpolate(messageTemplate, context, locale);
052        }
053
054}