001 /**
002 * Copyright 2005-2014 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.krad.dao.proxy;
017
018 import org.apache.commons.lang.StringUtils;
019 import org.kuali.rice.core.api.config.ConfigurationException;
020 import org.kuali.rice.core.framework.persistence.jpa.OrmUtils;
021 import org.kuali.rice.krad.bo.ModuleConfiguration;
022 import org.kuali.rice.krad.dao.BusinessObjectDao;
023 import org.kuali.rice.krad.dao.DocumentDao;
024 import org.kuali.rice.krad.dao.impl.DocumentDaoJpa;
025 import org.kuali.rice.krad.dao.impl.DocumentDaoOjb;
026 import org.kuali.rice.krad.document.Document;
027 import org.kuali.rice.krad.service.DocumentAdHocService;
028 import org.kuali.rice.krad.service.KRADServiceLocatorWeb;
029 import org.kuali.rice.krad.service.KualiModuleService;
030 import org.kuali.rice.krad.service.ModuleService;
031 import org.springframework.transaction.annotation.Transactional;
032
033 import javax.persistence.EntityManager;
034 import java.util.List;
035 import java.util.Map;
036 import java.util.concurrent.ConcurrentHashMap;
037
038 @Transactional
039 public class DocumentDaoProxy implements DocumentDao {
040
041 private DocumentDao documentDaoJpa;
042 private DocumentDao documentDaoOjb;
043
044 private static KualiModuleService kualiModuleService;
045 private static Map<String, DocumentDao> documentDaoValues = new ConcurrentHashMap<String, DocumentDao>();
046
047 private DocumentDao getDao(Class<? extends Document> clazz) {
048 ModuleService moduleService = getKualiModuleService().getResponsibleModuleService(clazz);
049 if (moduleService != null) {
050 ModuleConfiguration moduleConfig = moduleService.getModuleConfiguration();
051 String dataSourceName = "";
052 EntityManager entityManager = null;
053 if (moduleConfig != null) {
054 dataSourceName = moduleConfig.getDataSourceName();
055 entityManager = moduleConfig.getEntityManager();
056 }
057
058 if (StringUtils.isNotEmpty(dataSourceName)) {
059 if (documentDaoValues.get(dataSourceName) != null) {
060 return documentDaoValues.get(dataSourceName);
061 }
062 if (OrmUtils.isJpaAnnotated(clazz) && (OrmUtils.isJpaEnabled() || OrmUtils.isJpaEnabled("rice.krad"))) {
063 //using JPA
064 if (entityManager != null) {
065 // we set the entity manager directly in the constructor
066 DocumentDaoJpa documentDaoJpaInstance =
067 new DocumentDaoJpa(entityManager, this.documentDaoJpa.getBusinessObjectDao(),
068 this.documentDaoJpa.getDocumentAdHocService());
069
070 documentDaoValues.put(dataSourceName, documentDaoJpaInstance);
071 return documentDaoJpaInstance;
072 }
073 throw new ConfigurationException("EntityManager is null. EntityManager must be set in the Module Configuration bean in the appropriate spring beans xml. (see nested exception for details).");
074 }
075 //using OJB
076 DocumentDaoOjb documentDaoOjbInstance =
077 new DocumentDaoOjb(
078 this.documentDaoOjb.getBusinessObjectDao(),
079 this.documentDaoOjb.getDocumentAdHocService());
080
081 // set the data source alias
082 documentDaoOjbInstance.setJcdAlias(dataSourceName);
083
084 documentDaoValues.put(dataSourceName, documentDaoOjbInstance);
085 return documentDaoOjbInstance;
086
087 }
088
089 }
090 return (OrmUtils.isJpaAnnotated(clazz) && OrmUtils.isJpaEnabled()) ? documentDaoJpa : documentDaoOjb;
091 }
092
093 /**
094 * @see org.kuali.rice.krad.dao.DocumentDao#save(org.kuali.rice.krad.document.Document)
095 */
096 @Override
097 public <T extends Document> T save(T document) {
098 return getDao(document.getClass()).save(document);
099 }
100
101 /**
102 * @see org.kuali.rice.krad.dao.DocumentDao#findByDocumentHeaderId(java.lang.Class, java.lang.String)
103 */
104 @Override
105 public <T extends Document> T findByDocumentHeaderId(Class<T> clazz, String id) {
106 return getDao(clazz).findByDocumentHeaderId(clazz, id);
107 }
108
109 /**
110 * @see org.kuali.rice.krad.dao.DocumentDao#findByDocumentHeaderIds(java.lang.Class, java.util.List)
111 */
112 @Override
113 public <T extends Document> List<T> findByDocumentHeaderIds(Class<T> clazz, List<String> idList) {
114 return getDao(clazz).findByDocumentHeaderIds(clazz, idList);
115 }
116
117 /**
118 * @see org.kuali.rice.krad.dao.DocumentDao#getBusinessObjectDao()
119 */
120 @Override
121 public BusinessObjectDao getBusinessObjectDao() {
122 if (OrmUtils.isJpaEnabled()) {
123 return documentDaoJpa.getBusinessObjectDao();
124 }
125 return documentDaoOjb.getBusinessObjectDao();
126 }
127
128 /**
129 * @see org.kuali.rice.krad.dao.DocumentDao#getDocumentAdHocService()
130 */
131 @Override
132 public DocumentAdHocService getDocumentAdHocService() {
133 if (OrmUtils.isJpaEnabled()) {
134 return documentDaoJpa.getDocumentAdHocService();
135 }
136 return documentDaoOjb.getDocumentAdHocService();
137 }
138
139 public void setDocumentDaoJpa(DocumentDao documentDaoJpa) {
140 this.documentDaoJpa = documentDaoJpa;
141 }
142
143 public void setDocumentDaoOjb(DocumentDao documentDaoOjb) {
144 this.documentDaoOjb = documentDaoOjb;
145 }
146
147 private synchronized static KualiModuleService getKualiModuleService() {
148 if (kualiModuleService == null) {
149 kualiModuleService = KRADServiceLocatorWeb.getKualiModuleService();
150 }
151 return kualiModuleService;
152 }
153
154 }