/*
* Copyright 2004-2005 Graeme Rocher
*
* 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 org.grails.validation;
import grails.validation.AbstractConstraint;
import grails.validation.ConstrainedProperty;
import org.apache.commons.validator.routines.CreditCardValidator;
import org.springframework.validation.Errors;
/**
* Validates a credit card number.
*
* @author Graeme Rocher
* @since 0.4
*/
public class CreditCardConstraint extends AbstractConstraint {
private boolean creditCard;
@Override
protected void processValidate(Object target, Object propertyValue, Errors errors) {
if (!creditCard) {
return;
}
CreditCardValidator validator = new CreditCardValidator();
if (!validator.isValid(propertyValue.toString())) {
Object[] args = new Object[] { constraintPropertyName, constraintOwningClass, propertyValue };
rejectValue(target, errors, ConstrainedProperty.DEFAULT_INVALID_CREDIT_CARD_MESSAGE_CODE,
ConstrainedProperty.CREDIT_CARD_CONSTRAINT + ConstrainedProperty.INVALID_SUFFIX, args);
}
}
@Override
public void setParameter(Object constraintParameter) {
if (!(constraintParameter instanceof Boolean)) {
throw new IllegalArgumentException("Parameter for constraint [" +
ConstrainedProperty.CREDIT_CARD_CONSTRAINT + "] of property [" +
constraintPropertyName + "] of class [" +
constraintOwningClass + "] must be a boolean value");
}
creditCard = (Boolean)constraintParameter;
super.setParameter(constraintParameter);
}
public String getName() {
return ConstrainedProperty.CREDIT_CARD_CONSTRAINT;
}
@SuppressWarnings("rawtypes")
public boolean supports(Class type) {
return type != null && String.class.isAssignableFrom(type);
}
}