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1   /**
2    * Copyright 2005-2015 The Kuali Foundation
3    *
4    * Licensed under the Educational Community License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.opensource.org/licenses/ecl2.php
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.kuali.rice.ksb.messaging.resourceloader;
17  
18  import org.kuali.rice.core.api.config.CoreConfigHelper;
19  import org.kuali.rice.core.api.config.property.ConfigContext;
20  import org.kuali.rice.core.api.resourceloader.ResourceLoader;
21  import org.kuali.rice.core.framework.resourceloader.BaseResourceLoader;
22  import org.kuali.rice.ksb.api.KsbApiServiceLocator;
23  import org.kuali.rice.ksb.api.bus.ServiceBus;
24  
25  import javax.xml.namespace.QName;
26  
27  
28  
29  /**
30   * Creates KSBs root resource loader with all the correct children attached ready for starting.
31   * Uses config object to store QNames so everything is good with the current context classloader.
32   *
33   * Can grab any KSB specific resource loader from the resource loading stack.
34   *
35   *
36   * @author Kuali Rice Team (rice.collab@kuali.org)
37   *
38   */
39  public class KSBResourceLoaderFactory {
40  	
41  	private static final String KSB_ROOT_RESOURCE_LOACER_NAME = "KSB_ROOT_RESOURCE_LOADER";
42  	private static final String KSB_REMOTE_RESOURCE_LOADER_LOCAL_NAME = "KSB_REMOTE_RESOURCE_LOADER";
43  
44  	private static void initialize() {
45  		String applicationId = CoreConfigHelper.getApplicationId();
46  		if (getRootResourceLoaderName() == null) {
47  			setRootResourceLoaderName(new QName(applicationId, KSB_ROOT_RESOURCE_LOACER_NAME));
48  		}
49  		if (getRemoteResourceLoaderName() == null) {
50  			setRemoteResourceLoaderName(new QName(applicationId, KSB_REMOTE_RESOURCE_LOADER_LOCAL_NAME));
51  		}
52  	}
53  
54  	public static ResourceLoader createRootKSBRemoteResourceLoader() {
55  		initialize();
56  		ResourceLoader rootResourceLoader = new BaseResourceLoader(getRootResourceLoaderName());
57  		ServiceBus serviceBus = KsbApiServiceLocator.getServiceBus();
58  		if (serviceBus == null) {
59  			throw new IllegalStateException("Failed to locate the ServiceBus");
60  		}
61  		rootResourceLoader.addResourceLoader(new ServiceBusResourceLoader(getRemoteResourceLoaderName(), serviceBus));
62  		return rootResourceLoader;
63  	}
64  
65  	public static QName getRootResourceLoaderName() {
66  		return (QName)ConfigContext.getCurrentContextConfig().getObject(KSB_ROOT_RESOURCE_LOACER_NAME);
67  	}
68  
69  	public static void setRootResourceLoaderName(QName name) {
70  		ConfigContext.getCurrentContextConfig().putObject(KSB_ROOT_RESOURCE_LOACER_NAME, name);
71  	}
72  
73  	public static QName getRemoteResourceLoaderName() {
74  		return (QName)ConfigContext.getCurrentContextConfig().getObject(KSB_REMOTE_RESOURCE_LOADER_LOCAL_NAME);
75  	}
76  
77  	public static void setRemoteResourceLoaderName(QName remoteResourceLoaderName) {
78  		ConfigContext.getCurrentContextConfig().putObject(KSB_REMOTE_RESOURCE_LOADER_LOCAL_NAME, remoteResourceLoaderName);
79  	}
80  
81  }