Http session Listener

import java.io.File;
import javax.servlet.http.HttpSessionEvent;

import org.springframework.security.web.session.HttpSessionEventPublisher;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class SessionListener extends HttpSessionEventPublisher
{
   
    private static Log log = LogFactory.getLog(SessionListener.class);
   
    @Override
    public void sessionDestroyed(HttpSessionEvent event) {
        deleteFolders(event);
        super.sessionDestroyed(event);
    }
   
    private void deleteFolders(HttpSessionEvent event)
    {
        try {
            String strSessionId = event.getSession().getId();
            String BaseDir = "";
            if(event.getSession().getAttribute("contextRoot") != null)
               BaseDir = event.getSession().getServletContext().getRealPath(event.getSession().getAttribute("contextRoot").toString()) + "/uploads/reports/";
              log.debug("SessionListener :: deleteFolders() :: Reports DIR Path = " + BaseDir);
              if (BaseDir != null && BaseDir.length() > 0) {
                BaseDir = BaseDir + strSessionId + "/";
                log.debug("SessionListener :: deleteFolders() :: Reports DIR Path for this Session = " + BaseDir);
                File reportsDir = new File(BaseDir);
                boolean success = true;
                 if (reportsDir.isDirectory()) {
                     String[] children = reportsDir.list();
                     log.debug("SessionListener :: deleteFolders() :: It is a directory and no of files in it are = " + children.length);
                     for (int k=0; k<children.length; k++) {
                        new File(reportsDir, children[k]).delete();
                     }
                     success = reportsDir.delete();
                     log.debug("SessionListener :: deleteFolders() :: Report deletion status = " + success);
                     if(success) {
                         log.info("Session named Directory deleted. Which was used to generate reports. Session ID : " + strSessionId );
                     }
                 } else
                     log.debug( BaseDir + " is not a directory");
            } else {
                log.info("Directory is not found to delete for Session ID : " + strSessionId );
            }
               
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            log.error("Session Dir deletion exception  : ", e);
        }
    } //end of deleteFolders()
   
} //end of file

Entry in the web.xml

    <listener>
        <listener-class>
            mypackage.SessionListener
        </listener-class>
    </listener>