/*

  * Copyright 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.ksb.messaging.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;

 import org.kuali.rice.core.resourceloader.BaseResourceLoader;

 import org.kuali.rice.core.resourceloader.GlobalResourceLoader;

 import org.kuali.rice.core.resourceloader.ResourceLoader;

 import org.kuali.rice.core.resourceloader.SpringResourceLoader;

 import org.kuali.rice.ksb.messaging.RemoteResourceServiceLocator;

 import org.kuali.rice.ksb.messaging.RemoteResourceServiceLocatorImpl;

 /**

  * Creates KSBs root resource loader with all the correct children attached ready for starting.

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

  *

  * Can grab any KSB specific resource loader from the resource loading stack.

  *

  *

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

  *

  */

 public class KSBResourceLoaderFactory {

         private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger

                         .getLogger(KSBResourceLoaderFactory.class);

         private static final String KSB_ROOT_RESOURCE_LOACER_NAME = "KSB_ROOT_RESOURCE_LOADER";

         private static final String KSB_REMOTE_RESOURCE_LOADER_LOCAL_NAME = "KSB_REMOTE_RESOURCE_LOADER";

         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(), KSB_ROOT_RESOURCE_LOACER_NAME));

                 }

                 if (getRemoteResourceLoaderName() == null) {

                         setRemoteResourceLoaderName(new QName(ConfigContext.getCurrentContextConfig().getServiceNamespace(), KSB_REMOTE_RESOURCE_LOADER_LOCAL_NAME));

                 }

         }

         public static ResourceLoader createRootKSBRemoteResourceLoader() {

                 initialize();

                 ResourceLoader rootResourceLoader = new BaseResourceLoader(getRootResourceLoaderName());

                 rootResourceLoader.addResourceLoader(new RemoteResourceServiceLocatorImpl(getRemoteResourceLoaderName()));

                 return rootResourceLoader;

         }

         public static ResourceLoader createThinClientKSBResourceLoader() {

                 ResourceLoader resourceLoader = new SpringResourceLoader(new QName("", "KSB_THIN_CLIENT_RESOURCE_LOADER"), "classpath:org/kuali/rice/ksb/config/KSBThinClientSpringBeans.xml");

                 GlobalResourceLoader.addResourceLoader(resourceLoader);

                 return resourceLoader;

         }

         public static BaseResourceLoader getRootResourceLoader() {

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

         }

         public static RemoteResourceServiceLocator getRemoteResourceLocator() {

                 return (RemoteResourceServiceLocator)GlobalResourceLoader.getResourceLoader(getRemoteResourceLoaderName());

         }

         public static QName getRootResourceLoaderName() {

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

         }

         public static void setRootResourceLoaderName(QName name) {

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

         }

         public static QName getRemoteResourceLoaderName() {

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

         }

         public static void setRemoteResourceLoaderName(QName remoteResourceLoaderName) {

                 ConfigContext.getCurrentContextConfig().putObject(KSB_REMOTE_RESOURCE_LOADER_LOCAL_NAME, remoteResourceLoaderName);

         }

 }