org.hibernate.validator.internal.constraintvalidators.bv.time.AbstractInstantBasedTimeValidator Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of bean-validator Show documentation
Show all versions of bean-validator Show documentation
JSR 380's RI, Hibernate Validator version ${hibernate-validator.version} and its dependencies repackaged as OSGi bundle
/*
* Hibernate Validator, declare and validate application constraints
*
* License: Apache License, Version 2.0
* See the license.txt file in the root directory or .
*/
package org.hibernate.validator.internal.constraintvalidators.bv.time;
import java.lang.annotation.Annotation;
import java.lang.invoke.MethodHandles;
import java.time.Clock;
import java.time.Duration;
import java.time.Instant;
import javax.validation.ConstraintValidatorContext;
import javax.validation.metadata.ConstraintDescriptor;
import org.hibernate.validator.constraintvalidation.HibernateConstraintValidator;
import org.hibernate.validator.constraintvalidation.HibernateConstraintValidatorInitializationContext;
import org.hibernate.validator.internal.util.logging.Log;
import org.hibernate.validator.internal.util.logging.LoggerFactory;
/**
* Base class for all time validators that use an {@link Instant} to be compared to the time reference.
*
* @author Alaa Nassef
* @author Guillaume Smet
*/
public abstract class AbstractInstantBasedTimeValidator implements HibernateConstraintValidator {
private static final Log LOG = LoggerFactory.make( MethodHandles.lookup() );
protected Clock referenceClock;
@Override
public void initialize(ConstraintDescriptor constraintDescriptor, HibernateConstraintValidatorInitializationContext initializationContext) {
try {
this.referenceClock = Clock.offset(
initializationContext.getClockProvider().getClock(),
getEffectiveTemporalValidationTolerance( initializationContext.getTemporalValidationTolerance() )
);
}
catch (Exception e) {
throw LOG.getUnableToGetCurrentTimeFromClockProvider( e );
}
}
@Override
public boolean isValid(T value, ConstraintValidatorContext context) {
// null values are valid
if ( value == null ) {
return true;
}
int result = getInstant( value ).compareTo( referenceClock.instant() );
return isValid( result );
}
/**
* Returns the temporal validation tolerance to apply.
*/
protected abstract Duration getEffectiveTemporalValidationTolerance(Duration absoluteTemporalValidationTolerance);
/**
* Returns the {@link Instant} measured from Epoch.
*/
protected abstract Instant getInstant(T value);
/**
* Returns whether the result of the comparison between the validated value and the time reference is considered
* valid.
*/
protected abstract boolean isValid(int result);
}