| /* |
| * 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()); |
| } |
| } |