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/*
 * Copyright 2002-2012 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.remoting.rmi;

import javax.naming.NamingException;

import org.springframework.aop.framework.ProxyFactory;
import org.springframework.beans.factory.BeanClassLoaderAware;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.util.ClassUtils;

/**
 * {@link FactoryBean} for RMI proxies from JNDI.
 *
 * 

Typically used for RMI-IIOP (CORBA), but can also be used for EJB home objects * (for example, a Stateful Session Bean home). In contrast to a plain JNDI lookup, * this accessor also performs narrowing through {@link javax.rmi.PortableRemoteObject}. * *

With conventional RMI services, this invoker is typically used with the RMI * service interface. Alternatively, this invoker can also proxy a remote RMI service * with a matching non-RMI business interface, i.e. an interface that mirrors the RMI * service methods but does not declare RemoteExceptions. In the latter case, * RemoteExceptions thrown by the RMI stub will automatically get converted to * Spring's unchecked RemoteAccessException. * *

The JNDI environment can be specified as "jndiEnvironment" property, * or be configured in a {@code jndi.properties} file or as system properties. * For example: * *

<property name="jndiEnvironment">
 * 	 <props>
 *		 <prop key="java.naming.factory.initial">com.sun.jndi.cosnaming.CNCtxFactory</prop>
 *		 <prop key="java.naming.provider.url">iiop://localhost:1050</prop>
 *	 </props>
 * </property>
* * @author Juergen Hoeller * @since 1.1 * @see #setServiceInterface * @see #setJndiName * @see #setJndiTemplate * @see #setJndiEnvironment * @see #setJndiName * @see JndiRmiServiceExporter * @see org.springframework.remoting.RemoteAccessException * @see java.rmi.RemoteException * @see java.rmi.Remote * @see javax.rmi.PortableRemoteObject#narrow */ public class JndiRmiProxyFactoryBean extends JndiRmiClientInterceptor implements FactoryBean, BeanClassLoaderAware { private ClassLoader beanClassLoader = ClassUtils.getDefaultClassLoader(); private Object serviceProxy; @Override public void setBeanClassLoader(ClassLoader classLoader) { this.beanClassLoader = classLoader; } @Override public void afterPropertiesSet() throws NamingException { super.afterPropertiesSet(); if (getServiceInterface() == null) { throw new IllegalArgumentException("Property 'serviceInterface' is required"); } this.serviceProxy = new ProxyFactory(getServiceInterface(), this).getProxy(this.beanClassLoader); } @Override public Object getObject() { return this.serviceProxy; } @Override public Class getObjectType() { return getServiceInterface(); } @Override public boolean isSingleton() { return true; } }