/**
* Abiquo community edition
* cloud management application for hybrid clouds
* Copyright (C) 2008-2010 - Abiquo Holdings S.L.
*
* This application is free software; you can redistribute it and/or
* modify it under the terms of the GNU LESSER GENERAL PUBLIC
* LICENSE as published by the Free Software Foundation under
* version 3 of the License
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* LESSER GENERAL PUBLIC LICENSE v.3 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
package com.abiquo.model.validation;
import static java.lang.annotation.ElementType.METHOD;
import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import javax.validation.Constraint;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import javax.validation.OverridesAttribute;
import javax.validation.Payload;
import com.abiquo.server.core.common.Limit;
@Documented
@Constraint(validatedBy = LimitRange.Validator.class)
@Target({METHOD})
@Retention(RetentionPolicy.RUNTIME)
public @interface LimitRange
{
@OverridesAttribute(constraint = LimitRange.class, name = "type")
String type();
String message() default "invalid limit range for {type}";
Class< ? >[] groups() default {};
Class< ? extends Payload>[] payload() default {};
static class Validator implements ConstraintValidator<LimitRange, Limit>
{
public static final long NO_LIMIT = 0;
LimitRange anno;
@Override
public void initialize(LimitRange anno)
{
this.anno = anno;
}
@Override
public boolean isValid(Limit limit, ConstraintValidatorContext context)
{
boolean valid = false;
if (limit.soft < 0 || limit.hard < 0)
{
valid = false;
}
else
{
valid =
(limit.soft == NO_LIMIT && limit.hard == NO_LIMIT)
|| (limit.soft >= NO_LIMIT && limit.hard == NO_LIMIT)
|| (limit.soft != NO_LIMIT && limit.soft <= limit.hard);
}
if (!valid)
{
context.disableDefaultConstraintViolation();
context.buildConstraintViolationWithTemplate(
"invalid limit range for " + anno.type() + ": soft = " + limit.soft
+ "; hard = " + limit.hard).addConstraintViolation();
}
return valid;
}
}
}