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; 020 021import javax.validation.MessageInterpolator; 022 023import org.springframework.context.i18n.LocaleContextHolder; 024import org.springframework.util.Assert; 025 026/** 027 * Delegates to a target {@link MessageInterpolator} implementation but enforces Spring's 028 * managed Locale. Typically used to wrap the validation provider's default interpolator. 029 * 030 * @author Juergen Hoeller 031 * @since 3.0 032 * @see org.springframework.context.i18n.LocaleContextHolder#getLocale() 033 */ 034public class LocaleContextMessageInterpolator implements MessageInterpolator { 035 036 private final MessageInterpolator targetInterpolator; 037 038 039 /** 040 * Create a new LocaleContextMessageInterpolator, wrapping the given target interpolator. 041 * @param targetInterpolator the target MessageInterpolator to wrap 042 */ 043 public LocaleContextMessageInterpolator(MessageInterpolator targetInterpolator) { 044 Assert.notNull(targetInterpolator, "Target MessageInterpolator must not be null"); 045 this.targetInterpolator = targetInterpolator; 046 } 047 048 049 @Override 050 public String interpolate(String message, Context context) { 051 return this.targetInterpolator.interpolate(message, context, LocaleContextHolder.getLocale()); 052 } 053 054 @Override 055 public String interpolate(String message, Context context, Locale locale) { 056 return this.targetInterpolator.interpolate(message, context, locale); 057 } 058 059}