001/* 002 * Copyright 2002-2012 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.validation.beanvalidation; 018 019import java.util.Locale; 020import javax.validation.MessageInterpolator; 021 022import org.springframework.context.i18n.LocaleContextHolder; 023import org.springframework.util.Assert; 024 025/** 026 * Delegates to a target {@link MessageInterpolator} implementation but enforces Spring's 027 * managed Locale. Typically used to wrap the validation provider's default interpolator. 028 * 029 * @author Juergen Hoeller 030 * @since 3.0 031 * @see org.springframework.context.i18n.LocaleContextHolder#getLocale() 032 */ 033public class LocaleContextMessageInterpolator implements MessageInterpolator { 034 035 private final MessageInterpolator targetInterpolator; 036 037 038 /** 039 * Create a new LocaleContextMessageInterpolator, wrapping the given target interpolator. 040 * @param targetInterpolator the target MessageInterpolator to wrap 041 */ 042 public LocaleContextMessageInterpolator(MessageInterpolator targetInterpolator) { 043 Assert.notNull(targetInterpolator, "Target MessageInterpolator must not be null"); 044 this.targetInterpolator = targetInterpolator; 045 } 046 047 048 @Override 049 public String interpolate(String message, Context context) { 050 return this.targetInterpolator.interpolate(message, context, LocaleContextHolder.getLocale()); 051 } 052 053 @Override 054 public String interpolate(String message, Context context, Locale locale) { 055 return this.targetInterpolator.interpolate(message, context, locale); 056 } 057 058}