001    /**
002     *   GRANITE DATA SERVICES
003     *   Copyright (C) 2006-2013 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    package org.granite.client.messaging.transport;
021    
022    import org.granite.logging.Logger;
023    
024    /**
025     * @author Franck WOLFF
026     */
027    public interface TransportStatusHandler {
028            
029            void handleIO(boolean active);
030    
031            void handleException(TransportException e);
032    
033            static class NoopEngineStatusHandler implements TransportStatusHandler {
034    
035                    @Override
036                    public void handleIO(boolean active) {
037                    }
038    
039                    @Override
040                    public void handleException(TransportException e) {
041                    }
042            }
043    
044            static class LogEngineStatusHandler implements TransportStatusHandler {
045                    
046                    private static final Logger log = Logger.getLogger(LogEngineStatusHandler.class);
047    
048                    @Override
049                    public void handleIO(boolean active) {
050                            log.info(active ? "Starting IO" : "IO completed");
051                    }
052    
053                    @Override
054                    public void handleException(TransportException e) {
055                            log.error(e, "Engine failed");
056                    }
057            }
058    }