| /* |
| * 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.beam.sdk.testing; |
| |
| import java.lang.annotation.Annotation; |
| import java.util.Arrays; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Predicate; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.FluentIterable; |
| import org.junit.experimental.categories.Category; |
| |
| /** A utility class for querying annotations. */ |
| class Annotations { |
| |
| /** Annotation predicates. */ |
| static class Predicates { |
| |
| static Predicate<Annotation> isAnnotationOfType(final Class<? extends Annotation> clazz) { |
| return annotation -> |
| annotation.annotationType() != null && annotation.annotationType().equals(clazz); |
| } |
| |
| static Predicate<Annotation> isCategoryOf(final Class<?> value, final boolean allowDerived) { |
| return category -> |
| FluentIterable.from(Arrays.asList(((Category) category).value())) |
| .anyMatch( |
| aClass -> allowDerived ? value.isAssignableFrom(aClass) : value.equals(aClass)); |
| } |
| } |
| } |