// Copyright (c) 2003-2014, Jodd Team (jodd.org). All Rights Reserved.
package jodd.vtor.constraint;
import jodd.bean.BeanException;
import jodd.bean.BeanUtil;
import jodd.vtor.ValidationConstraint;
import jodd.vtor.ValidationConstraintContext;
import jodd.vtor.VtorException;
public class EqualToDeclaredFieldConstraint implements ValidationConstraint<EqualToDeclaredField> {
public EqualToDeclaredFieldConstraint() {
}
public EqualToDeclaredFieldConstraint(String fieldName) {
this.fieldName = fieldName;
}
// ---------------------------------------------------------------- properties
protected String fieldName;
public String getFieldName() {
return fieldName;
}
public void setFieldName(String fieldName) {
this.fieldName = fieldName;
}
// ---------------------------------------------------------------- configure
public void configure(EqualToDeclaredField annotation) {
this.fieldName = annotation.value();
}
// ---------------------------------------------------------------- valid
public boolean isValid(ValidationConstraintContext vcc, Object value) {
return validate(vcc.getTarget(), value, fieldName);
}
public static boolean validate(Object target, Object value, String fieldName) {
if (value == null) {
return true;
}
Object valueToCompare;
try {
valueToCompare = BeanUtil.getDeclaredProperty(target, fieldName);
} catch (BeanException bex) {
throw new VtorException("Invalid value: " + fieldName, bex);
}
if (valueToCompare == null) {
return false;
}
return value.equals(valueToCompare);
}
}