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.tomcat;
022    
023    import org.apache.catalina.CometEvent;
024    import org.apache.catalina.CometEvent.EventSubType;
025    import org.apache.catalina.CometEvent.EventType;
026    
027    /**
028     * @author Franck WOLFF
029     */
030    public class EventUtil {
031    
032        public static boolean isTimeout(CometEvent event) {
033            return (
034                event.getEventType() == EventType.ERROR &&
035                event.getEventSubType() == EventSubType.TIMEOUT
036            );
037        }
038    
039        public static boolean isError(CometEvent event) {
040            return (event.getEventType() == EventType.ERROR);
041        }
042    
043        public static boolean isErrorButNotTimeout(CometEvent event) {
044            return (
045                event.getEventType() == EventType.ERROR &&
046                event.getEventSubType() != EventSubType.TIMEOUT
047            );
048        }
049        
050        public static boolean isValid(CometEvent event) {
051            if (event != null) {
052                    try {
053                            return event.getHttpServletRequest() != null && event.getHttpServletResponse() != null;
054                    } catch (Exception e) {
055                    }
056            }
057            return false;
058        }
059    
060        public static String toString(CometEvent event) {
061            if (event == null)
062                    return "null";
063            try {
064                    return event.getClass().getName() + " [" + event.getEventType() + '.' + event.getEventSubType() + ']';
065            }
066            catch (Exception e) {
067                    return e.toString();
068            }
069        }
070    }