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https://github.com/Alfresco/alfresco-community-repo.git
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git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@13682 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
113 lines
4.7 KiB
Java
113 lines
4.7 KiB
Java
/*
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* Copyright (C) 2005-2009 Alfresco Software Limited.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* As a special exception to the terms and conditions of version 2.0 of
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* the GPL, you may redistribute this Program in connection with Free/Libre
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* and Open Source Software ("FLOSS") applications as described in Alfresco's
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* FLOSS exception. You should have received a copy of the text describing
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* the FLOSS exception, and it is also available here:
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* http://www.alfresco.com/legal/licensing"
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*/
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package org.alfresco.repo.management;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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import java.util.Map;
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import org.aopalliance.intercept.MethodInterceptor;
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import org.aopalliance.intercept.MethodInvocation;
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import org.springframework.aop.framework.ProxyFactoryBean;
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import org.springframework.aop.support.DefaultPointcutAdvisor;
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/**
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* A factory bean, normally used in conjunction with {@link DefaultManagedApplicationContextFactory} allowing selected
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* interfaces in a child application context to be proxied by a bean in the parent application context. This allows
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* 'hot-swapping' and reconfiguration of entire subsystems.
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*/
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public class ManagedSubsystemProxyFactory extends ProxyFactoryBean
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{
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private static final long serialVersionUID = -4186421942840611218L;
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/** The source application context factory. */
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private ManagedApplicationContextFactory sourceApplicationContextFactory;
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/** An optional bean name to look up in the source application context **/
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private String sourceBeanName;
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/**
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* Instantiates a new managed subsystem proxy factory.
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*/
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public ManagedSubsystemProxyFactory()
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{
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addAdvisor(new DefaultPointcutAdvisor(new MethodInterceptor()
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{
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public Object invoke(MethodInvocation mi) throws Throwable
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{
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Method method = mi.getMethod();
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try
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{
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if (ManagedSubsystemProxyFactory.this.sourceBeanName == null)
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{
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Map<?, ?> beans = ManagedSubsystemProxyFactory.this.sourceApplicationContextFactory
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.getApplicationContext().getBeansOfType(method.getDeclaringClass());
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if (beans.size() != 1)
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{
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throw new RuntimeException("Don't know where to route call to method " + method);
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}
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return method.invoke(beans.values().iterator().next(), mi.getArguments());
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}
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else
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{
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Object bean = ManagedSubsystemProxyFactory.this.sourceApplicationContextFactory
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.getApplicationContext().getBean(ManagedSubsystemProxyFactory.this.sourceBeanName);
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return method.invoke(bean, mi.getArguments());
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}
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}
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catch (InvocationTargetException e)
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{
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// Unwrap invocation target exceptions
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throw e.getTargetException();
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}
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}
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}));
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}
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/**
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* Sets the source application context factory.
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*
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* @param sourceApplicationContextFactory
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* the sourceApplicationContextFactory to set
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*/
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public void setSourceApplicationContextFactory(ManagedApplicationContextFactory sourceApplicationContextFactory)
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{
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this.sourceApplicationContextFactory = sourceApplicationContextFactory;
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}
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/**
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* Sets optional bean name to target all calls to in the source application context. If not set, an appropriate
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* bean is looked up based on method class.
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*
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* @param sourceBeanName
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* the sourceBeanName to set
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*/
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public void setSourceBeanName(String sourceBeanName)
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{
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this.sourceBeanName = sourceBeanName;
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}
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}
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