blob: 9808f89bcd35aaa73e8fdcd2ff103e8763408799 [file] [log] [blame]
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.bval.jsr.metadata;
import java.lang.annotation.Annotation;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;
import org.apache.bval.util.Validate;
public class CompositeValidatorMappingProvider extends ValidatorMappingProvider {
private final List<ValidatorMappingProvider> delegates;
public CompositeValidatorMappingProvider(List<ValidatorMappingProvider> delegates) {
super();
this.delegates = Validate.notNull(delegates, "delegates");
Validate.isTrue(!delegates.isEmpty(), "no delegates specified");
Validate.isTrue(delegates.stream().noneMatch(Objects::isNull), "One or more supplied delegates was null");
}
@Override
protected <A extends Annotation> ValidatorMapping<A> doGetValidatorMapping(Class<A> constraintType) {
return ValidatorMapping.merge(delegates.stream().map(d -> d.doGetValidatorMapping(constraintType))
.filter(Objects::nonNull).collect(Collectors.toList()), AnnotationBehaviorMergeStrategy.consensus());
}
}