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.target; 018 019import org.springframework.aop.target.AbstractBeanFactoryBasedTargetSource; 020import org.springframework.aop.target.CommonsPool2TargetSource; 021import org.springframework.aop.target.PrototypeTargetSource; 022import org.springframework.aop.target.ThreadLocalTargetSource; 023import org.springframework.lang.Nullable; 024 025/** 026 * Convenient TargetSourceCreator using bean name prefixes to create one of three 027 * well-known TargetSource types: 028 * <li>: CommonsPool2TargetSource 029 * <li>% ThreadLocalTargetSource 030 * <li>! PrototypeTargetSource 031 * 032 * @author Rod Johnson 033 * @author Stephane Nicoll 034 * @see org.springframework.aop.target.CommonsPool2TargetSource 035 * @see org.springframework.aop.target.ThreadLocalTargetSource 036 * @see org.springframework.aop.target.PrototypeTargetSource 037 */ 038public class QuickTargetSourceCreator extends AbstractBeanFactoryBasedTargetSourceCreator { 039 040 /** 041 * The CommonsPool2TargetSource prefix. 042 */ 043 public static final String PREFIX_COMMONS_POOL = ":"; 044 045 /** 046 * The ThreadLocalTargetSource prefix. 047 */ 048 public static final String PREFIX_THREAD_LOCAL = "%"; 049 050 /** 051 * The PrototypeTargetSource prefix. 052 */ 053 public static final String PREFIX_PROTOTYPE = "!"; 054 055 @Override 056 @Nullable 057 protected final AbstractBeanFactoryBasedTargetSource createBeanFactoryBasedTargetSource( 058 Class<?> beanClass, String beanName) { 059 060 if (beanName.startsWith(PREFIX_COMMONS_POOL)) { 061 CommonsPool2TargetSource cpts = new CommonsPool2TargetSource(); 062 cpts.setMaxSize(25); 063 return cpts; 064 } 065 else if (beanName.startsWith(PREFIX_THREAD_LOCAL)) { 066 return new ThreadLocalTargetSource(); 067 } 068 else if (beanName.startsWith(PREFIX_PROTOTYPE)) { 069 return new PrototypeTargetSource(); 070 } 071 else { 072 // No match. Don't create a custom target source. 073 return null; 074 } 075 } 076 077}