/*

  * Copyright 2007-2008 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.kuali.rice.core.config.Config;

 import org.kuali.rice.core.config.ConfigContext;

 import org.kuali.rice.core.config.ConfigurationException;

 /**

  * Creates resource loader for rice spring context.

  * Uses config object to store QNames so everything is good with the current context classloader.

  *

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public class RiceResourceLoaderFactory {

         private static final String RICE_ROOT_RESOURCE_LOADER_NAME = "RICE_ROOT_RESOURCE_LOADER";

         private static final String RICE_SPRING_RESOURCE_LOADER_NAME = "RICE_SPRING_RESOURCE_LOADER_NAME";

         private static void initialize() {

                 Config config = ConfigContext.getCurrentContextConfig();

                 if (config.getServiceNamespace() == null) {

                         throw new ConfigurationException("No service namespace available at this time");

                 }

                 if (getRootResourceLoaderName() == null) {

                         setRootResourceLoaderName(new QName(ConfigContext.getCurrentContextConfig().getServiceNamespace(), RICE_ROOT_RESOURCE_LOADER_NAME));

                 }

                 if (getSpringResourceLoaderName() == null) {

                         setSpringResourceLoaderName(new QName(ConfigContext.getCurrentContextConfig().getServiceNamespace(), RICE_SPRING_RESOURCE_LOADER_NAME));

                 }

         }

         public static ResourceLoader createRootRiceResourceLoader(String springFileLocations) {

                 initialize();

                 ResourceLoader rootResourceLoader = 

                         new BaseResourceLoader((QName)ConfigContext.getCurrentContextConfig().getObject(RICE_ROOT_RESOURCE_LOADER_NAME),

                         new SimpleServiceLocator());

                 ResourceLoader springResourceLoader = 

                         new SpringResourceLoader((QName)ConfigContext.getCurrentContextConfig().getObject(RICE_SPRING_RESOURCE_LOADER_NAME),

                         springFileLocations.split(SpringLoader.SPRING_SEPARATOR_CHARACTER));

                 rootResourceLoader.addResourceLoaderFirst(springResourceLoader);

                 return rootResourceLoader;

         }

         public static BaseResourceLoader getRootResourceLoader() {

                 return (BaseResourceLoader)GlobalResourceLoader.getResourceLoader(getRootResourceLoaderName());

         }

         public static SpringResourceLoader getSpringResourceLoader() {

                 return (SpringResourceLoader)GlobalResourceLoader.getResourceLoader(getSpringResourceLoaderName());

         }

         public static QName getRootResourceLoaderName() {

                 return (QName)ConfigContext.getCurrentContextConfig().getObject(RICE_ROOT_RESOURCE_LOADER_NAME);

         }

         public static void setRootResourceLoaderName(QName name) {

                 ConfigContext.getCurrentContextConfig().putObject(RICE_ROOT_RESOURCE_LOADER_NAME, name);

         }

         public static QName getSpringResourceLoaderName() {

                 return (QName)ConfigContext.getCurrentContextConfig().getObject(RICE_SPRING_RESOURCE_LOADER_NAME);

         }

         public static void setSpringResourceLoaderName(QName ksbRsourceLoaderName) {

                 ConfigContext.getCurrentContextConfig().putObject(RICE_SPRING_RESOURCE_LOADER_NAME, ksbRsourceLoaderName);

         }

 }