| /* |
| * 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.util.Objects; |
| import java.util.function.Consumer; |
| import java.util.stream.Stream; |
| |
| import org.apache.bval.util.reflection.Reflection; |
| import org.apache.commons.weaver.privilizer.Privilizing; |
| import org.apache.commons.weaver.privilizer.Privilizing.CallTo; |
| |
| @Privilizing(@CallTo(Reflection.class)) |
| public abstract class ClassLoadingValidatorMappingProvider extends ValidatorMappingProvider { |
| |
| protected final <T> Stream<Class<? extends T>> load(Stream<String> classNames, Class<T> assignableTo, |
| Consumer<? super ClassNotFoundException> handleException) { |
| return classNames.map(className -> { |
| try { |
| return Reflection.toClass(className, getClassLoader()); |
| } catch (ClassNotFoundException e) { |
| handleException.accept(e); |
| return (Class<?>) null; |
| } |
| }).filter(Objects::nonNull).map(c -> (Class<? extends T>) c.asSubclass(assignableTo)); |
| } |
| |
| protected ClassLoader getClassLoader() { |
| final ClassLoader classloader = Thread.currentThread().getContextClassLoader(); |
| return classloader == null ? getClass().getClassLoader() : classloader; |
| } |
| } |