001    /**
002     * Copyright 2005-2013 The Kuali Foundation
003     *
004     * Licensed under the Educational Community License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.opensource.org/licenses/ecl2.php
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    package org.kuali.rice.ksb.messaging.resourceloader;
017    
018    import org.kuali.rice.core.api.config.CoreConfigHelper;
019    import org.kuali.rice.core.api.config.property.ConfigContext;
020    import org.kuali.rice.core.api.resourceloader.ResourceLoader;
021    import org.kuali.rice.core.framework.resourceloader.BaseResourceLoader;
022    import org.kuali.rice.ksb.api.KsbApiServiceLocator;
023    import org.kuali.rice.ksb.api.bus.ServiceBus;
024    
025    import javax.xml.namespace.QName;
026    
027    
028    
029    /**
030     * Creates KSBs root resource loader with all the correct children attached ready for starting.
031     * Uses config object to store QNames so everything is good with the current context classloader.
032     *
033     * Can grab any KSB specific resource loader from the resource loading stack.
034     *
035     *
036     * @author Kuali Rice Team (rice.collab@kuali.org)
037     *
038     */
039    public class KSBResourceLoaderFactory {
040            
041            private static final String KSB_ROOT_RESOURCE_LOACER_NAME = "KSB_ROOT_RESOURCE_LOADER";
042            private static final String KSB_REMOTE_RESOURCE_LOADER_LOCAL_NAME = "KSB_REMOTE_RESOURCE_LOADER";
043    
044            private static void initialize() {
045                    String applicationId = CoreConfigHelper.getApplicationId();
046                    if (getRootResourceLoaderName() == null) {
047                            setRootResourceLoaderName(new QName(applicationId, KSB_ROOT_RESOURCE_LOACER_NAME));
048                    }
049                    if (getRemoteResourceLoaderName() == null) {
050                            setRemoteResourceLoaderName(new QName(applicationId, KSB_REMOTE_RESOURCE_LOADER_LOCAL_NAME));
051                    }
052            }
053    
054            public static ResourceLoader createRootKSBRemoteResourceLoader() {
055                    initialize();
056                    ResourceLoader rootResourceLoader = new BaseResourceLoader(getRootResourceLoaderName());
057                    ServiceBus serviceBus = KsbApiServiceLocator.getServiceBus();
058                    if (serviceBus == null) {
059                            throw new IllegalStateException("Failed to locate the ServiceBus");
060                    }
061                    rootResourceLoader.addResourceLoader(new ServiceBusResourceLoader(getRemoteResourceLoaderName(), serviceBus));
062                    return rootResourceLoader;
063            }
064    
065            public static QName getRootResourceLoaderName() {
066                    return (QName)ConfigContext.getCurrentContextConfig().getObject(KSB_ROOT_RESOURCE_LOACER_NAME);
067            }
068    
069            public static void setRootResourceLoaderName(QName name) {
070                    ConfigContext.getCurrentContextConfig().putObject(KSB_ROOT_RESOURCE_LOACER_NAME, name);
071            }
072    
073            public static QName getRemoteResourceLoaderName() {
074                    return (QName)ConfigContext.getCurrentContextConfig().getObject(KSB_REMOTE_RESOURCE_LOADER_LOCAL_NAME);
075            }
076    
077            public static void setRemoteResourceLoaderName(QName remoteResourceLoaderName) {
078                    ConfigContext.getCurrentContextConfig().putObject(KSB_REMOTE_RESOURCE_LOADER_LOCAL_NAME, remoteResourceLoaderName);
079            }
080    
081    }