001    /*
002      GRANITE DATA SERVICES
003      Copyright (C) 2012 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.client.messaging.transport;
022    
023    import org.granite.logging.Logger;
024    
025    /**
026     * @author Franck WOLFF
027     */
028    public interface TransportStatusHandler {
029            
030            void handleIO(boolean active);
031    
032            void handleException(TransportException e);
033    
034            static class NoopEngineStatusHandler implements TransportStatusHandler {
035    
036                    @Override
037                    public void handleIO(boolean active) {
038                    }
039    
040                    @Override
041                    public void handleException(TransportException e) {
042                    }
043            }
044    
045            static class LogEngineStatusHandler implements TransportStatusHandler {
046                    
047                    private static final Logger log = Logger.getLogger(LogEngineStatusHandler.class);
048    
049                    @Override
050                    public void handleIO(boolean active) {
051                            log.info(active ? "Starting IO" : "IO completed");
052                    }
053    
054                    @Override
055                    public void handleException(TransportException e) {
056                            log.error(e, "Engine failed");
057                    }
058            }
059    }