/*
* JBoss, Home of Professional Open Source
* Copyright 2009, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* 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.hibernate.validator.ap.checks;
import java.util.Collections;
import java.util.Set;
import javax.lang.model.element.AnnotationMirror;
import javax.lang.model.element.TypeElement;
import javax.validation.Constraint;
import org.hibernate.validator.ap.util.AnnotationApiHelper;
import org.hibernate.validator.ap.util.CollectionHelper;
import org.hibernate.validator.ap.util.ConstraintHelper;
/**
* Checks, that for each constraint annotation type, which is not a composed constraint,
* a validator implementation is specified using {@link Constraint} annotation.
*
* @author Gunnar Morling
*/
public class ConstraintValidatorCheck extends AbstractConstraintCheck {
private ConstraintHelper constraintHelper;
private final AnnotationApiHelper annotationApiHelper;
public ConstraintValidatorCheck(ConstraintHelper constraintHelper, AnnotationApiHelper annotationApiHelper) {
this.constraintHelper = constraintHelper;
this.annotationApiHelper = annotationApiHelper;
}
@Override
public Set<ConstraintCheckError> checkAnnotationType(TypeElement element, AnnotationMirror annotation) {
AnnotationMirror constraintMirror = annotationApiHelper.getMirror(
element.getAnnotationMirrors(), Constraint.class
);
boolean atLeastOneValidatorGiven = !annotationApiHelper.getAnnotationArrayValue(
constraintMirror, "validatedBy"
).isEmpty();
if ( !( atLeastOneValidatorGiven || constraintHelper.isComposedConstraint( element ) ) ) {
return CollectionHelper.asSet(
new ConstraintCheckError(
element,
annotationApiHelper.getMirror( element.getAnnotationMirrors(), Constraint.class ),
"CONSTRAINT_TYPE_WITHOUT_VALIDATOR"
)
);
}
return Collections.emptySet();
}
}