1 /** 2 * This file Copyright (c) 2019 Magnolia International 3 * Ltd. (http://www.magnolia-cms.com). All rights reserved. 4 * 5 * 6 * This file is dual-licensed under both the Magnolia 7 * Network Agreement and the GNU General Public License. 8 * You may elect to use one or the other of these licenses. 9 * 10 * This file is distributed in the hope that it will be 11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the 12 * implied warranty of MERCHANTABILITY or FITNESS FOR A 13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT. 14 * Redistribution, except as permitted by whichever of the GPL 15 * or MNA you select, is prohibited. 16 * 17 * 1. For the GPL license (GPL), you can redistribute and/or 18 * modify this file under the terms of the GNU General 19 * Public License, Version 3, as published by the Free Software 20 * Foundation. You should have received a copy of the GNU 21 * General Public License, Version 3 along with this program; 22 * if not, write to the Free Software Foundation, Inc., 51 23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 24 * 25 * 2. For the Magnolia Network Agreement (MNA), this file 26 * and the accompanying materials are made available under the 27 * terms of the MNA which accompanies this distribution, and 28 * is available at http://www.magnolia-cms.com/mna.html 29 * 30 * Any modifications to this file must keep this entire header 31 * intact. 32 * 33 */ 34 package info.magnolia.i18nsystem.bytebudddy; 35 36 import java.lang.annotation.Annotation; 37 import java.util.stream.Stream; 38 39 import net.bytebuddy.description.type.TypeDescription; 40 import net.bytebuddy.matcher.ElementMatcher; 41 import net.bytebuddy.matcher.ElementMatchers; 42 43 /** 44 * Macro-matcher which evaluates a delegate matcher against the whole type hierarchy of a specified class. 45 * In case a type or any of its super-types (or interfaces) matches, current matcher also reports a found match. 46 * 47 * @param <T> type description 48 */ 49 public class AnyTypeInHierarchyMatcher<T extends TypeDescription> extends ElementMatcher.Junction.AbstractBase<T> { 50 51 /** 52 * Convenience API that constructs a matcher which searches for a specific annotation declared on a type or any of its super-types/interfaces. 53 */ 54 public static <C extends TypeDescription> AnyTypeInHierarchyMatcher<C> annotationIsPresentInTypeHierarchy(Class<? extends Annotation> annotationType) { 55 return new AnyTypeInHierarchyMatcher<>(ElementMatchers.isAnnotatedWith(annotationType)); 56 } 57 58 private final ElementMatcher<? super TypeDescription> matcher; 59 60 public AnyTypeInHierarchyMatcher(ElementMatcher<? super TypeDescription> matcher) { 61 this.matcher = matcher; 62 } 63 64 @Override 65 public boolean matches(T target) { 66 Stream<TypeDescription> allTypes = Stream.concat(Stream.of(target.asGenericType().asErasure()), target.getInterfaces().asErasures().stream()); 67 return allTypes.anyMatch(matcher::matches) || (target.getSuperClass() != null && matches((T) target.getSuperClass().asErasure())); 68 } 69 }