001    /**
002     *
003     * Copyright 2005 LogicBlaze, Inc.
004     *
005     * Licensed under the Apache License, Version 2.0 (the "License");
006     * you may not use this file except in compliance with the License.
007     * You may obtain a copy of the License at
008     *
009     * http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     *
017     **/
018    
019    package org.logicblaze.lingo.jms;
020    
021    import org.springframework.aop.framework.ProxyFactoryBean;
022    import org.springframework.aop.framework.ProxyFactory;
023    import org.springframework.beans.factory.FactoryBean;
024    
025    import javax.jms.JMSException;
026    
027    /**
028     * Factory bean for JMS proxies. Behaves like the proxied service when
029     * used as bean reference, exposing the specified service interface.
030     * <p/>
031     * <p>The service URL must be an JMS URL exposing a JMS service.
032     * For details, see JmsClientInterceptor docs.
033     *
034     * @author James Strachan
035     * @see JmsClientInterceptor
036     * @see JmsServiceExporter
037     */
038    public class JmsProxyFactoryBean extends JmsClientInterceptor implements FactoryBean {
039    
040        private Object serviceProxy;
041    
042        public void afterPropertiesSet() throws JMSException {
043            super.afterPropertiesSet();
044            Class serviceInterface = getServiceInterface();
045            this.serviceProxy = ProxyFactory.getProxy(serviceInterface, this);
046        }
047    
048        public Object getObject() {
049            return this.serviceProxy;
050        }
051    
052        public Class getObjectType() {
053            return (this.serviceProxy != null) ? this.serviceProxy.getClass() : getServiceInterface();
054        }
055    
056        public boolean isSingleton() {
057            return true;
058        }
059    
060    }