/*
* Copyright 2002-2009 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.jms.remoting;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.beans.factory.BeanClassLoaderAware;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.util.ClassUtils;
/**
* FactoryBean for JMS invoker proxies. Exposes the proxied service for use
* as a bean reference, using the specified service interface.
*
* <p>Serializes remote invocation objects and deserializes remote invocation
* result objects. Uses Java serialization just like RMI, but with the JMS
* provider as communication infrastructure.
*
* <p>To be configured with a {@link javax.jms.QueueConnectionFactory} and a
* target queue (either as {@link javax.jms.Queue} reference or as queue name).
*
* @author Juergen Hoeller
* @since 2.0
* @see #setConnectionFactory
* @see #setQueueName
* @see #setServiceInterface
* @see org.springframework.jms.remoting.JmsInvokerClientInterceptor
* @see org.springframework.jms.remoting.JmsInvokerServiceExporter
*/
public class JmsInvokerProxyFactoryBean extends JmsInvokerClientInterceptor
implements FactoryBean<Object>, BeanClassLoaderAware {
private Class serviceInterface;
private ClassLoader beanClassLoader = ClassUtils.getDefaultClassLoader();
private Object serviceProxy;
/**
* Set the interface that the proxy must implement.
* @param serviceInterface the interface that the proxy must implement
* @throws IllegalArgumentException if the supplied <code>serviceInterface</code>
* is <code>null</code>, or if the supplied <code>serviceInterface</code>
* is not an interface type
*/
public void setServiceInterface(Class serviceInterface) {
if (serviceInterface == null || !serviceInterface.isInterface()) {
throw new IllegalArgumentException("'serviceInterface' must be an interface");
}
this.serviceInterface = serviceInterface;
}
public void setBeanClassLoader(ClassLoader classLoader) {
this.beanClassLoader = classLoader;
}
public void afterPropertiesSet() {
super.afterPropertiesSet();
if (this.serviceInterface == null) {
throw new IllegalArgumentException("Property 'serviceInterface' is required");
}
this.serviceProxy = new ProxyFactory(this.serviceInterface, this).getProxy(this.beanClassLoader);
}
public Object getObject() {
return this.serviceProxy;
}
public Class<?> getObjectType() {
return this.serviceInterface;
}
public boolean isSingleton() {
return true;
}
}
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