/* * Copyright 2002-2018 the original author or authors. * * Licensed 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.springframework.context.annotation; import java.lang.reflect.Method; import java.util.Map; import org.springframework.core.annotation.AnnotatedElementUtils; import org.springframework.core.annotation.AnnotationAttributes; import org.springframework.util.ConcurrentReferenceHashMap; /** * Utilities for processing {@link Bean}-annotated methods. * * @author Chris Beams * @author Juergen Hoeller * @since 3.1 */ abstract class BeanAnnotationHelper { private static final Map<Method, String> beanNameCache = new ConcurrentReferenceHashMap<>(); private static final Map<Method, Boolean> scopedProxyCache = new ConcurrentReferenceHashMap<>(); public static boolean isBeanAnnotated(Method method) { return AnnotatedElementUtils.hasAnnotation(method, Bean.class); } public static String determineBeanNameFor(Method beanMethod) { String beanName = beanNameCache.get(beanMethod); if (beanName == null) { // By default, the bean name is the name of the @Bean-annotated method beanName = beanMethod.getName(); // Check to see if the user has explicitly set a custom bean name... AnnotationAttributes bean = AnnotatedElementUtils.findMergedAnnotationAttributes(beanMethod, Bean.class, false, false); if (bean != null) { String[] names = bean.getStringArray("name"); if (names.length > 0) { beanName = names[0]; } } beanNameCache.put(beanMethod, beanName); } return beanName; } public static boolean isScopedProxy(Method beanMethod) { Boolean scopedProxy = scopedProxyCache.get(beanMethod); if (scopedProxy == null) { AnnotationAttributes scope = AnnotatedElementUtils.findMergedAnnotationAttributes(beanMethod, Scope.class, false, false); scopedProxy = (scope != null && scope.getEnum("proxyMode") != ScopedProxyMode.NO); scopedProxyCache.put(beanMethod, scopedProxy); } return scopedProxy; } }