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.messaging.service;
023
024 import java.util.HashMap;
025 import java.util.Map;
026
027 import org.granite.config.flex.Destination;
028 import org.granite.logging.Logger;
029 import org.granite.util.TypeUtil;
030
031 import flex.messaging.messages.RemotingMessage;
032
033 /**
034 * @author Franck WOLFF
035 */
036 public class SimpleServiceInvoker extends ServiceInvoker<SimpleServiceFactory> {
037
038 private static final Logger log = Logger.getLogger(SimpleServiceInvoker.class);
039
040 private final Map<String, Object> sources;
041
042 protected SimpleServiceInvoker(Destination destination, SimpleServiceFactory factory) throws ServiceException {
043 super(destination, factory);
044
045 String className = destination.getProperties().get("source");
046 if (className == null)
047 throw new ServiceException("No source property for destination: " + destination);
048 className = className.trim();
049
050 log.debug(">> New SimpleServiceInvoker constructing new: %s", className);
051
052 // Invokee class set at runtime (RemoteObject.source).
053 if ("*".equals(className))
054 sources = new HashMap<String, Object>();
055 else {
056 try {
057 if (destination.getScannedClass() != null)
058 this.invokee = destination.getScannedClass().newInstance();
059 else
060 this.invokee = TypeUtil.newInstance(className);
061 } catch (Exception e) {
062 throw new ServiceException("Invalid source property for destination: " + destination, e);
063 }
064 sources = null;
065 }
066 }
067
068 @Override
069 protected Object adjustInvokee(RemotingMessage request, String methodName, Object[] args) throws ServiceException {
070
071 if (sources == null)
072 return super.adjustInvokee(request, methodName, args);
073
074 String className = request.getSource();
075 if (className == null)
076 throw new ServiceException("No source property in request for '*' destination: " + destination);
077 className = className.trim();
078
079 Object invokee = null;
080
081 synchronized (sources) {
082 invokee = sources.get(className);
083 if (invokee == null) {
084 try {
085 invokee = TypeUtil.newInstance(className);
086 } catch (Exception e) {
087 throw new ServiceException("Invalid source property in request for '*' destination: " + destination, e);
088 }
089 sources.put(className, invokee);
090 }
091 }
092
093 return invokee;
094 }
095 }