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/*
* Copyright 2017 ~ 2025 the original author or authors. James Wong
*
* 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
*
* http://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 com.wl4g.infra.common.validation;
import static org.apache.commons.lang3.StringUtils.isBlank;
import java.text.ParseException;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import org.apache.commons.lang3.time.DateUtils;
/**
* {@link DateValidator}
*
* @author James Wong <[email protected]>
* @version 2022-04-03 v3.0.0
* @since v3.0.0
*/
public class DateValidator implements ConstraintValidator {
private Boolean required;
private String format;
@Override
public void initialize(DateValue constraintAnnotation) {
this.required = constraintAnnotation.required();
this.format = constraintAnnotation.format();
}
@Override
public boolean isValid(String dateValue, ConstraintValidatorContext context) {
if (isBlank(dateValue)) {
// If it is not a required parameter, it means legal.
return !required;
} else {
try {
// Check date format.
DateUtils.parseDate(dateValue, format);
return true;
} catch (ParseException e) {
return false;
}
}
}
}