001/* 002 * Copyright 2002-2018 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.aop.framework.autoproxy; 018 019import org.springframework.core.NamedThreadLocal; 020import org.springframework.lang.Nullable; 021 022/** 023 * Holder for the current proxy creation context, as exposed by auto-proxy creators 024 * such as {@link AbstractAdvisorAutoProxyCreator}. 025 * 026 * @author Juergen Hoeller 027 * @author Ramnivas Laddad 028 * @since 2.5 029 */ 030public final class ProxyCreationContext { 031 032 /** ThreadLocal holding the current proxied bean name during Advisor matching. */ 033 private static final ThreadLocal<String> currentProxiedBeanName = 034 new NamedThreadLocal<>("Name of currently proxied bean"); 035 036 037 private ProxyCreationContext() { 038 } 039 040 041 /** 042 * Return the name of the currently proxied bean instance. 043 * @return the name of the bean, or {@code null} if none available 044 */ 045 @Nullable 046 public static String getCurrentProxiedBeanName() { 047 return currentProxiedBeanName.get(); 048 } 049 050 /** 051 * Set the name of the currently proxied bean instance. 052 * @param beanName the name of the bean, or {@code null} to reset it 053 */ 054 static void setCurrentProxiedBeanName(@Nullable String beanName) { 055 if (beanName != null) { 056 currentProxiedBeanName.set(beanName); 057 } 058 else { 059 currentProxiedBeanName.remove(); 060 } 061 } 062 063}