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/*-
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2021 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.common.parameters;
import java.lang.annotation.Annotation;
import java.lang.reflect.AnnotatedType;
/**
* Validator of an "item", which is typically found in a collection, or the key or value
* components of an entry in a Map.
*/
public class ItemValidator extends ValueValidator {
private final AnnotatedType annotatedType;
/**
* Constructs the object.
*
* @param validator provider of validation methods
* @param annotatedType a type having validation annotations to be
* applied to the item
*/
public ItemValidator(BeanValidator validator, AnnotatedType annotatedType) {
this(validator, annotatedType, true);
}
/**
* Constructs the object.
*
* @param validator provider of validation methods
* @param annotatedType a type having validation annotations to be
* applied to the item
* @param addValidators {@code true} if to add validators
*/
public ItemValidator(BeanValidator validator, AnnotatedType annotatedType, boolean addValidators) {
this.annotatedType = annotatedType;
if (addValidators) {
validator.addValidators(this);
}
}
/**
* Gets an annotation from the field or the class.
*
* @param annotClass annotation class of interest
* @return the annotation, or {@code null} if the {@link #annotatedType} does
* not contain the desired annotation
*/
@Override
public <T extends Annotation> T getAnnotation(Class<T> annotClass) {
return annotatedType.getAnnotation(annotClass);
}
}
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