spring LocaleContextMessageInterpolator 源码
spring LocaleContextMessageInterpolator 代码
文件路径：/spring-context/src/main/java/org/springframework/validation/beanvalidation/LocaleContextMessageInterpolator.java
/*
* Copyright 2002-2012 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.validation.beanvalidation;
import java.util.Locale;
import jakarta.validation.MessageInterpolator;
import org.springframework.context.i18n.LocaleContextHolder;
import org.springframework.util.Assert;
/**
* Delegates to a target {@link MessageInterpolator} implementation but enforces Spring's
* managed Locale. Typically used to wrap the validation provider's default interpolator.
*
* @author Juergen Hoeller
* @since 3.0
* @see org.springframework.context.i18n.LocaleContextHolder#getLocale()
*/
public class LocaleContextMessageInterpolator implements MessageInterpolator {
private final MessageInterpolator targetInterpolator;
/**
* Create a new LocaleContextMessageInterpolator, wrapping the given target interpolator.
* @param targetInterpolator the target MessageInterpolator to wrap
*/
public LocaleContextMessageInterpolator(MessageInterpolator targetInterpolator) {
Assert.notNull(targetInterpolator, "Target MessageInterpolator must not be null");
this.targetInterpolator = targetInterpolator;
}
@Override
public String interpolate(String message, Context context) {
return this.targetInterpolator.interpolate(message, context, LocaleContextHolder.getLocale());
}
@Override
public String interpolate(String message, Context context, Locale locale) {
return this.targetInterpolator.interpolate(message, context, locale);
}
}
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