001 /*
002 GRANITE DATA SERVICES
003 Copyright (C) 2011 GRANITE DATA SERVICES S.A.S.
004
005 This file is part of Granite Data Services.
006
007 Granite Data Services is free software; you can redistribute it and/or modify
008 it under the terms of the GNU Library General Public License as published by
009 the Free Software Foundation; either version 2 of the License, or (at your
010 option) any later version.
011
012 Granite Data Services is distributed in the hope that it will be useful, but
013 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015 for more details.
016
017 You should have received a copy of the GNU Library General Public License
018 along with this library; if not, see <http://www.gnu.org/licenses/>.
019 */
020
021 package org.granite.tide.spring;
022
023 import java.util.Map;
024
025 import javax.servlet.ServletContext;
026
027 import org.granite.config.flex.Destination;
028 import org.granite.context.GraniteContext;
029 import org.granite.logging.Logger;
030 import org.granite.messaging.service.ExtendedServiceExceptionHandler;
031 import org.granite.messaging.service.ServiceException;
032 import org.granite.messaging.service.ServiceFactory;
033 import org.granite.messaging.service.ServiceInvoker;
034 import org.granite.messaging.webapp.HttpGraniteContext;
035 import org.granite.tide.TideServiceInvoker;
036 import org.granite.tide.data.PersistenceExceptionConverter;
037 import org.granite.util.TypeUtil;
038 import org.granite.util.XMap;
039 import org.springframework.context.ApplicationContext;
040 import org.springframework.web.context.support.WebApplicationContextUtils;
041
042 import flex.messaging.messages.RemotingMessage;
043
044
045 /**
046 * @author Sebastien Deleuze
047 */
048 public class SpringServiceFactory extends ServiceFactory {
049
050 private static final Logger log = Logger.getLogger(SpringServiceFactory.class);
051
052 public static final String PERSISTENCE_MANAGER_BEAN_NAME = "persistence-manager-bean-name";
053 public static final String ENTITY_MANAGER_FACTORY_BEAN_NAME = "entity-manager-factory-bean-name";
054
055 private ApplicationContext springContext = null;
056
057 public void setApplicationContext(ApplicationContext applicationContext) {
058 this.springContext = applicationContext;
059 }
060
061
062 @Override
063 public void configure(XMap properties) throws ServiceException {
064 String sServiceExceptionHandler = properties.get("service-exception-handler");
065 if (sServiceExceptionHandler == null) {
066 XMap props = new XMap(properties);
067 props.put("service-exception-handler", ExtendedServiceExceptionHandler.class.getName());
068 super.configure(props);
069 }
070 else
071 super.configure(properties);
072
073 GraniteContext graniteContext = GraniteContext.getCurrentInstance();
074 try {
075 graniteContext.getGraniteConfig().registerExceptionConverter(PersistenceExceptionConverter.class);
076 }
077 catch (Throwable t) {
078 log.info(t, "JPA exception converter not registered (JPA not found on classpath)");
079 }
080 }
081
082
083 @Override
084 public ServiceInvoker<?> getServiceInstance(RemotingMessage request) throws ServiceException {
085
086 String messageType = request.getClass().getName();
087 String destinationId = request.getDestination();
088
089 GraniteContext context = GraniteContext.getCurrentInstance();
090 Map<String, Object> cache = context.getSessionMap();
091 Destination destination = context.getServicesConfig().findDestinationById(messageType, destinationId);
092 if (destination == null)
093 throw new ServiceException("No matching destination: " + destinationId);
094
095 String key = TideServiceInvoker.class.getName() + '.' + destinationId;
096
097 return getServiceInvoker(cache, destination, key);
098
099 }
100
101 private ServiceInvoker<?> getServiceInvoker(Map<String, Object> cache, Destination destination, String key) {
102 GraniteContext context = GraniteContext.getCurrentInstance();
103 synchronized (context.getSessionLock()) {
104 ServiceInvoker<?> invoker = (ServiceInvoker<?>)cache.get(key);
105 if (invoker == null) {
106 SpringServiceContext tideContext = null;
107 ServletContext sc = ((HttpGraniteContext)context).getServletContext();
108 ApplicationContext springContext = this.springContext != null ? this.springContext : WebApplicationContextUtils.getRequiredWebApplicationContext(sc);
109 Map<String, ?> beans = springContext.getBeansOfType(SpringServiceContext.class);
110 if (beans.size() > 1)
111 throw new RuntimeException("More than one SpringServiceContext bean found");
112 else if (beans.size() == 1)
113 tideContext = (SpringServiceContext)beans.values().iterator().next();
114 else {
115 // Try to create Spring MVC context when Spring MVC available
116 String className = "org.granite.tide.spring.SpringMVCServiceContext";
117 try {
118 Class<SpringServiceContext> clazz = TypeUtil.forName(className, SpringServiceContext.class);
119 tideContext = clazz.getConstructor(ApplicationContext.class).newInstance(springContext);
120 }
121 catch (Exception e) {
122 tideContext = new SpringServiceContext(springContext);
123 }
124 }
125
126 String persistenceManagerBeanName = destination.getProperties().get(PERSISTENCE_MANAGER_BEAN_NAME);
127 tideContext.setPersistenceManagerBeanName(persistenceManagerBeanName);
128
129 String entityManagerFactoryBeanName = destination.getProperties().get(ENTITY_MANAGER_FACTORY_BEAN_NAME);
130 tideContext.setEntityManagerFactoryBeanName(entityManagerFactoryBeanName);
131
132 invoker = new TideServiceInvoker<SpringServiceFactory>(destination, this, tideContext);
133 cache.put(key, invoker);
134 }
135 return invoker;
136 }
137
138 }
139 }