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.ejb;
022    
023    import java.util.Map;
024    
025    import org.granite.config.flex.Destination;
026    import org.granite.context.GraniteContext;
027    import org.granite.messaging.service.ExtendedServiceExceptionHandler;
028    import org.granite.messaging.service.ServiceException;
029    import org.granite.messaging.service.ServiceFactory;
030    import org.granite.messaging.service.ServiceInvoker;
031    import org.granite.scan.ScannedItemHandler;
032    import org.granite.tide.TideServiceInvoker;
033    import org.granite.tide.data.PersistenceExceptionConverter;
034    import org.granite.util.XMap;
035    
036    import flex.messaging.messages.RemotingMessage;
037    
038    
039    /**
040     * @author William DRAI
041     */
042    public class EjbServiceFactory extends ServiceFactory {
043        
044        public static final String ENTITY_MANAGER_FACTORY_JNDI_NAME = "entity-manager-factory-jndi-name";
045        public static final String ENTITY_MANAGER_JNDI_NAME = "entity-manager-jndi-name";
046    
047        private String lookup = null;
048    
049        public static ScannedItemHandler getScannedItemHandler() {
050            return EjbScannedItemHandler.instance(true);
051        }
052        
053        public String getLookup() {
054            return lookup;
055        }
056    
057    
058        @Override
059        public void configure(XMap properties) throws ServiceException {
060            String sServiceExceptionHandler = properties.get("service-exception-handler");
061            if (sServiceExceptionHandler == null) {
062                XMap props = new XMap(properties);
063                props.put("service-exception-handler", ExtendedServiceExceptionHandler.class.getName());
064                super.configure(props);
065            }
066            else
067                super.configure(properties);
068            
069            GraniteContext graniteContext = GraniteContext.getCurrentInstance();
070            graniteContext.getGraniteConfig().registerExceptionConverter(PersistenceExceptionConverter.class);
071            graniteContext.getGraniteConfig().registerExceptionConverter(EJBAccessExceptionConverter.class);
072            
073            this.lookup = properties.get("lookup");
074        }
075    
076    
077        @Override
078        public ServiceInvoker<?> getServiceInstance(RemotingMessage request) throws ServiceException {
079            String messageType = request.getClass().getName();
080            String destinationId = request.getDestination();
081    
082            GraniteContext context = GraniteContext.getCurrentInstance();
083            Map<String, Object> cache = context.getSessionMap();
084            Destination destination = context.getServicesConfig().findDestinationById(messageType, destinationId);
085            String key = TideServiceInvoker.class.getName() + '.' + destinationId;
086    
087            return getServiceInvoker(cache, destination, key);
088        }
089    
090        private ServiceInvoker<?> getServiceInvoker(Map<String, Object> cache, Destination destination, String key) {
091            GraniteContext context = GraniteContext.getCurrentInstance();
092            synchronized (context.getSessionLock()) {
093                ServiceInvoker<?> invoker = (ServiceInvoker<?>)cache.get(key);
094                if (invoker == null) {
095                    String lookup = getLookup();
096    
097                    if (destination.getProperties().containsKey("lookup"))
098                        lookup = destination.getProperties().get("lookup");
099                    
100                    EjbServiceContext tideContext = new EjbServiceContext(lookup); 
101                    
102                    if (destination.getProperties().containsKey(ENTITY_MANAGER_FACTORY_JNDI_NAME)) {
103                        tideContext.setEntityManagerFactoryJndiName(destination.getProperties().get(ENTITY_MANAGER_FACTORY_JNDI_NAME));
104                    } 
105                    else if (destination.getProperties().containsKey(ENTITY_MANAGER_JNDI_NAME)) {
106                        tideContext.setEntityManagerJndiName(destination.getProperties().get(ENTITY_MANAGER_JNDI_NAME));
107                    }
108                    
109                    invoker = new TideServiceInvoker<EjbServiceFactory>(destination, this, tideContext);
110                    cache.put(key, invoker);
111                }
112                return invoker;
113            }
114        }
115    }