001 /**
002 * GRANITE DATA SERVICES
003 * Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004 *
005 * This file is part of the Granite Data Services Platform.
006 *
007 * Granite Data Services is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * Granite Data Services is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015 * General Public License for more details.
016 *
017 * You should have received a copy of the GNU Lesser General Public
018 * License along with this library; if not, write to the Free Software
019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020 * USA, or see <http://www.gnu.org/licenses/>.
021 */
022 package org.granite.tide.spring;
023
024 import java.util.Map;
025
026 import javax.servlet.ServletContext;
027
028 import org.granite.config.flex.Destination;
029 import org.granite.context.GraniteContext;
030 import org.granite.logging.Logger;
031 import org.granite.messaging.service.ExtendedServiceExceptionHandler;
032 import org.granite.messaging.service.ServiceException;
033 import org.granite.messaging.service.ServiceFactory;
034 import org.granite.messaging.service.ServiceInvoker;
035 import org.granite.messaging.webapp.HttpGraniteContext;
036 import org.granite.tide.TideServiceInvoker;
037 import org.granite.tide.data.PersistenceExceptionConverter;
038 import org.granite.util.TypeUtil;
039 import org.granite.util.XMap;
040 import org.springframework.context.ApplicationContext;
041 import org.springframework.web.context.support.WebApplicationContextUtils;
042
043 import flex.messaging.messages.RemotingMessage;
044
045
046 /**
047 * @author Sebastien Deleuze
048 */
049 public class SpringServiceFactory extends ServiceFactory {
050
051 private static final Logger log = Logger.getLogger(SpringServiceFactory.class);
052
053 public static final String PERSISTENCE_MANAGER_BEAN_NAME = "persistence-manager-bean-name";
054 public static final String ENTITY_MANAGER_FACTORY_BEAN_NAME = "entity-manager-factory-bean-name";
055
056 private ApplicationContext springContext = null;
057
058 public void setApplicationContext(ApplicationContext applicationContext) {
059 this.springContext = applicationContext;
060 }
061
062
063 @Override
064 public void configure(XMap properties) throws ServiceException {
065 String sServiceExceptionHandler = properties.get("service-exception-handler");
066 if (sServiceExceptionHandler == null) {
067 XMap props = new XMap(properties);
068 props.put("service-exception-handler", ExtendedServiceExceptionHandler.class.getName());
069 super.configure(props);
070 }
071 else
072 super.configure(properties);
073
074 GraniteContext graniteContext = GraniteContext.getCurrentInstance();
075 try {
076 graniteContext.getGraniteConfig().registerExceptionConverter(PersistenceExceptionConverter.class);
077 }
078 catch (Throwable t) {
079 log.info(t, "JPA exception converter not registered (JPA not found on classpath)");
080 }
081 }
082
083
084 @Override
085 public ServiceInvoker<?> getServiceInstance(RemotingMessage request) throws ServiceException {
086
087 String messageType = request.getClass().getName();
088 String destinationId = request.getDestination();
089
090 GraniteContext context = GraniteContext.getCurrentInstance();
091 Map<String, Object> cache = context.getSessionMap(false);
092 if (cache == null)
093 cache = context.getRequestMap();
094 Destination destination = context.getServicesConfig().findDestinationById(messageType, destinationId);
095 if (destination == null)
096 throw new ServiceException("No matching destination: " + destinationId);
097
098 String key = TideServiceInvoker.class.getName() + '.' + destinationId;
099
100 return getServiceInvoker(cache, destination, key);
101
102 }
103
104 private ServiceInvoker<?> getServiceInvoker(Map<String, Object> cache, Destination destination, String key) {
105 GraniteContext context = GraniteContext.getCurrentInstance();
106 if (context.getSessionMap(false) == null)
107 return internalGetServiceInvoker(cache, destination, key);
108
109 synchronized (context.getSessionLock()) {
110 return internalGetServiceInvoker(cache, destination, key);
111 }
112 }
113
114 private ServiceInvoker<?> internalGetServiceInvoker(Map<String, Object> cache, Destination destination, String key) {
115 ServiceInvoker<?> invoker = (ServiceInvoker<?>)cache.get(key);
116 if (invoker == null) {
117 SpringServiceContext tideContext = null;
118 ServletContext sc = ((HttpGraniteContext)GraniteContext.getCurrentInstance()).getServletContext();
119 ApplicationContext springContext = this.springContext != null ? this.springContext : WebApplicationContextUtils.getRequiredWebApplicationContext(sc);
120 Map<String, ?> beans = springContext.getBeansOfType(SpringServiceContext.class);
121 if (beans.size() > 1)
122 throw new RuntimeException("More than one SpringServiceContext bean found");
123 else if (beans.size() == 1)
124 tideContext = (SpringServiceContext)beans.values().iterator().next();
125 else {
126 // Try to create Spring MVC context when Spring MVC available
127 String className = "org.granite.tide.spring.SpringMVCServiceContext";
128 try {
129 Class<SpringServiceContext> clazz = TypeUtil.forName(className, SpringServiceContext.class);
130 tideContext = clazz.getConstructor(ApplicationContext.class).newInstance(springContext);
131 }
132 catch (Exception e) {
133 tideContext = new SpringServiceContext(springContext);
134 }
135 }
136
137 String persistenceManagerBeanName = destination.getProperties().get(PERSISTENCE_MANAGER_BEAN_NAME);
138 tideContext.setPersistenceManagerBeanName(persistenceManagerBeanName);
139
140 String entityManagerFactoryBeanName = destination.getProperties().get(ENTITY_MANAGER_FACTORY_BEAN_NAME);
141 tideContext.setEntityManagerFactoryBeanName(entityManagerFactoryBeanName);
142
143 invoker = new TideServiceInvoker<SpringServiceFactory>(destination, this, tideContext);
144 cache.put(key, invoker);
145 }
146 return invoker;
147 }
148 }