/*
    * Copyright 2005-2007 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.core.resourceloader;
  
  import javax.xml.namespace.QName;
  
  import org.springframework.beans.BeansException;
  import org.springframework.beans.factory.BeanFactory;
  import org.springframework.beans.factory.BeanFactoryAware;
  
  /**
   * A ResourceLoader that is BeanFactoryAware and can be wired inside of Spring to provide
   * resource loading capabilities to that Spring BeanFactory.
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class SpringBeanFactoryResourceLoader extends BaseResourceLoader implements BeanFactoryAware {
  
  	private BeanFactory beanFactory;
  
  	public SpringBeanFactoryResourceLoader() {
  		this(new QName("", "BeanFactoryResourceLoader"));
  	}
  
  	public SpringBeanFactoryResourceLoader(QName name) {
  		super(name);
  	}
  
  	public void setBeanFactory(BeanFactory beanFactory) throws BeansException {
  		this.beanFactory = beanFactory;
  	}
  
  	protected BeanFactory getBeanFactory() {
  		return this.beanFactory;
  	}
  
  	@Override
  	public Object getService(QName serviceName) {
  		String resolvedServiceName = resolveServiceName(serviceName);
  		if (this.beanFactory.containsBean(resolvedServiceName)) {
  			Object service = this.beanFactory.getBean(resolvedServiceName);
  			if (service != null) {
  				return postProcessService(serviceName, service);
  			}
  		}
  		return super.getService(serviceName);
  	}
  
  	/**
  	 * Resolves the given QName service name to a String representation which is used
  	 * to lookup the service in Spring.  Default implementation simply calls toString()
  	 * on the QName.
  	 */
  	protected String resolveServiceName(QName serviceName) {
  		return serviceName.toString();
  	}
  
  
  
  }