/**
    * Copyright 2005-2012 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.rice.ksb.messaging;
  
  import org.apache.log4j.Logger;
  import org.kuali.rice.core.api.util.ClassLoaderUtils;
  import org.kuali.rice.ksb.api.bus.support.JavaServiceConfiguration;
  import org.springframework.aop.framework.ProxyFactory;
  import org.springframework.remoting.httpinvoker.HttpInvokerProxyFactoryBean;
  
  import java.util.ArrayList;
  import java.util.List;
  
  
  public class KSBHttpInvokerProxyFactoryBean extends HttpInvokerProxyFactoryBean {
  	private static final Logger LOG = Logger.getLogger(KSBHttpInvokerProxyFactoryBean.class);
  
  	private Object serviceProxy;
  
  	private JavaServiceConfiguration serviceConfiguration;
  
  	public JavaServiceConfiguration getServiceConfiguration() {
  		return this.serviceConfiguration;
  	}
  
  	public void setServiceConfiguration(JavaServiceConfiguration serviceConfiguration) {
  		this.serviceConfiguration = serviceConfiguration;
  	}
  
  	@Override
  	public void afterPropertiesSet() {
  		ProxyFactory proxyFactory = new ProxyFactory(getServiceInterfaces());
  		proxyFactory.addAdvice(this);
  		LOG.debug("Http proxying service " + getServiceConfiguration());
  		this.serviceProxy = proxyFactory.getProxy();
  	}
  
  	@Override
  	public Object getObject() {
  		return this.serviceProxy;
  	}
  
  	@Override
  	public Class<?> getObjectType() {
  		return getObject().getClass();
  	}
  
  	@Override
  	public boolean isSingleton() {
  		return false;
  	}
  
  	public Class<?>[] getServiceInterfaces() {
  		List<Class<?>> serviceInterfaces = new ArrayList<Class<?>>();
  		try {
  			for (String interfaceName : getServiceConfiguration().getServiceInterfaces()) {
  				Class<?> clazz = Class.forName(interfaceName, true, ClassLoaderUtils.getDefaultClassLoader());
  				LOG.debug("Adding service interface '" + clazz + "' to proxy object for service " + getServiceConfiguration());
  				serviceInterfaces.add(clazz);
  			}
  		} catch (ClassNotFoundException e) {
  			throw new RuntimeException(e);
  		}
  		return serviceInterfaces.toArray(new Class[0]);
  	}
  }