001/* 002 * Copyright 2002-2012 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.scripting.support; 018 019import org.springframework.aop.target.dynamic.BeanFactoryRefreshableTargetSource; 020import org.springframework.beans.factory.BeanFactory; 021import org.springframework.scripting.ScriptFactory; 022import org.springframework.scripting.ScriptSource; 023import org.springframework.util.Assert; 024 025/** 026 * Subclass of {@link BeanFactoryRefreshableTargetSource} that determines whether 027 * a refresh is required through the given {@link ScriptFactory}. 028 * 029 * @author Rob Harrop 030 * @author Juergen Hoeller 031 * @author Mark Fisher 032 * @since 2.0 033 */ 034public class RefreshableScriptTargetSource extends BeanFactoryRefreshableTargetSource { 035 036 private final ScriptFactory scriptFactory; 037 038 private final ScriptSource scriptSource; 039 040 private final boolean isFactoryBean; 041 042 043 /** 044 * Create a new RefreshableScriptTargetSource. 045 * @param beanFactory the BeanFactory to fetch the scripted bean from 046 * @param beanName the name of the target bean 047 * @param scriptFactory the ScriptFactory to delegate to for determining 048 * whether a refresh is required 049 * @param scriptSource the ScriptSource for the script definition 050 * @param isFactoryBean whether the target script defines a FactoryBean 051 */ 052 public RefreshableScriptTargetSource(BeanFactory beanFactory, String beanName, 053 ScriptFactory scriptFactory, ScriptSource scriptSource, boolean isFactoryBean) { 054 055 super(beanFactory, beanName); 056 Assert.notNull(scriptFactory, "ScriptFactory must not be null"); 057 Assert.notNull(scriptSource, "ScriptSource must not be null"); 058 this.scriptFactory = scriptFactory; 059 this.scriptSource = scriptSource; 060 this.isFactoryBean = isFactoryBean; 061 } 062 063 064 /** 065 * Determine whether a refresh is required through calling 066 * ScriptFactory's {@code requiresScriptedObjectRefresh} method. 067 * @see ScriptFactory#requiresScriptedObjectRefresh(ScriptSource) 068 */ 069 @Override 070 protected boolean requiresRefresh() { 071 return this.scriptFactory.requiresScriptedObjectRefresh(this.scriptSource); 072 } 073 074 /** 075 * Obtain a fresh target object, retrieving a FactoryBean if necessary. 076 */ 077 @Override 078 protected Object obtainFreshBean(BeanFactory beanFactory, String beanName) { 079 return super.obtainFreshBean(beanFactory, 080 (this.isFactoryBean ? BeanFactory.FACTORY_BEAN_PREFIX + beanName : beanName)); 081 } 082 083}