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.gravity.adapters;
022    
023    import org.granite.config.flex.Destination;
024    import org.granite.gravity.Channel;
025    import org.granite.gravity.Gravity;
026    import org.granite.logging.Logger;
027    import org.granite.messaging.service.ServiceException;
028    import org.granite.util.ClassUtil;
029    import org.granite.util.XMap;
030    
031    import flex.messaging.messages.AsyncMessage;
032    import flex.messaging.messages.CommandMessage;
033    
034    /**
035     * @author William DRAI
036     */
037    public abstract class ServiceAdapter {
038    
039        private static final Logger log = Logger.getLogger(ServiceAdapter.class);
040    
041        private String id;
042        private Gravity gravity;
043        private Destination destination;
044        private Object adapterState;
045        private SecurityPolicy securityPolicy = new DefaultSecurityPolicy();
046    
047    
048        public String getId() {
049            return id;
050        }
051        public void setId(String id) {
052            this.id = id;
053        }
054    
055        public Gravity getGravity() {
056            return gravity;
057        }
058        public void setGravity(Gravity gravity) {
059            this.gravity = gravity;
060        }
061    
062        public Destination getDestination() {
063            return destination;
064        }
065        public void setDestination(Destination destination) {
066            this.destination = destination;
067        }
068    
069        public Object getAdapterState() {
070            return adapterState;
071        }
072        public void setAdapterState(Object adapterState) {
073            this.adapterState = adapterState;
074        }
075    
076        public SecurityPolicy getSecurityPolicy() {
077            return securityPolicy;
078        }
079        public void setSecurityPolicy(SecurityPolicy securityPolicy) {
080            this.securityPolicy = securityPolicy;
081        }
082    
083    
084        public void configure(XMap adapterProperties, XMap destinationProperties) throws ServiceException {
085            String securityPolicy = adapterProperties.get("security-policy");
086            if (securityPolicy != null) {
087                    try {
088                            this.securityPolicy = ClassUtil.newInstance(securityPolicy, SecurityPolicy.class);
089                    }
090                    catch (Exception e) {
091                            log.error(e, "Could not create instance of %s (using default security policy)", securityPolicy);
092                    }
093            }
094        }
095    
096        public void start() throws ServiceException {
097        }
098    
099        public void stop() throws ServiceException {
100        }
101    
102    
103        public abstract Object manage(Channel fromClient, CommandMessage message);
104    
105        public abstract Object invoke(Channel fromClient, AsyncMessage message);
106    }