managelogs.java

java 写的一个新闻发布系统

     * @param   res       the HttpServletResponse object
     * @param   sess      the HttpSession object
     */
    private void processEnable( HttpServletRequest   req,
                                HttpServletResponse  res,
                                HttpSession          sess )
    throws IOException, ServletException
    {
        String   jahiaDisplayMessage = (String)  sess.getAttribute(CLASS_NAME + "jahiaDisplayMessage");


            // set default values...
            if(jahiaDisplayMessage == null)     jahiaDisplayMessage = Jahia.COPYRIGHT;


            if(lReg != null) {

                // get log config
                JahiaEventListenerInterface theListener = (lReg.getListener(LOGGING_EVENT_LISTENER));
                if( lReg.addListener("LoggingEventListener", LOGGING_EVENT_LISTENER) ) {
                    jahiaDisplayMessage = "Audit event logging successfully enabled";
                } else {
                    jahiaDisplayMessage = "Audit event logging could not be enabled";
                }
            }

            // set request attributes...
            sess.setAttribute(CLASS_NAME + "jahiaDisplayMessage",  jahiaDisplayMessage);
            displaySettings( req, res, sess );

    } // end processEnable



    /**
     * Disable Audit Event logging
     *
     * @author Mikhael Janson
     * @param   req       the HttpServletRequest object
     * @param   res       the HttpServletResponse object
     * @param   sess      the HttpSession object
     */
    private void processDisable( HttpServletRequest   req,
                                 HttpServletResponse  res,
                                 HttpSession          sess )
    throws IOException, ServletException
    {
        String   jahiaDisplayMessage = (String)  sess.getAttribute(CLASS_NAME + "jahiaDisplayMessage");

            // set default values...
            if(jahiaDisplayMessage == null) {  jahiaDisplayMessage = Jahia.COPYRIGHT;  }

            if(lReg != null) {

                // get log config
                //JahiaEventListenerInterface theListener = (lReg.getListener(LOGGING_EVENT_LISTENER));
                if( lReg.removeListener("LoggingEventListener") ) {
                    jahiaDisplayMessage = "Audit event logging successfully disabled";
                } else {
                    jahiaDisplayMessage = "Audit event logging could not be disabled";
                }
            }

            // set request attributes...
            sess.setAttribute(CLASS_NAME + "jahiaDisplayMessage",  jahiaDisplayMessage);
            displaySettings( req, res, sess );

    } // end processDisable



    /**
     * Update the maxLog property...
     *
     * @author Mikhael Janson
     * @param   req       the HttpServletRequest object
     * @param   res       the HttpServletResponse object
     * @param   sess      the HttpSession object
     */
    private void processSettings( HttpServletRequest   req,
                                  HttpServletResponse  res,
                                  HttpSession          sess )
    throws IOException, ServletException
    {
        String   jahiaDisplayMessage = (String)  sess.getAttribute(CLASS_NAME + "jahiaDisplayMessage");

            // get request parameters...
            String               maxLogs  =  req.getParameter("maxlogs");
            if (maxLogs == null) maxLogs  =  "500";

            // make sure we've got a valid number
            int maxLogsInt;
            try {
                maxLogsInt = Integer.parseInt(maxLogs.trim());

                // update the config property...
                PropertiesManager propertiesManager =  new PropertiesManager( Jahia.getJahiaPropertiesFileName() );
                propertiesManager.setProperty( "jahiaMaxLogs", Integer.toString(maxLogsInt) );
                propertiesManager.storeProperties();

                // if needed, delete superfluous log entries

                if (lMgr !=null) {

                    int result = lMgr.enforceMaxLogs(maxLogsInt);
                    jahiaDisplayMessage =  result + " log entries deleted";

                } else {

                    sess.setAttribute(CLASS_NAME + "jahiaDisplayMessage",  "Could not get an instance of AuditLogManager");
                    JahiaAdministration.displayMenu( req, res, sess );   // back to menu in case of problems with the Managers...
                }
            }
            catch(NumberFormatException nfe) {
                jahiaDisplayMessage =  "Invalid value entered for maximum log size";
            }

            // set request attributes...
            sess.setAttribute(CLASS_NAME + "jahiaDisplayMessage",  jahiaDisplayMessage);
            displaySettings( req, res, sess );

    } // end processSettings



    /**
     * Display a confirmation request for flushing all audit log entries, using doRedirect().
     *
     * @author Mikhael Janson
     * @param   req       the HttpServletRequest object
     * @param   res       the HttpServletResponse object
     * @param   sess      the HttpSession object
     */
    private void displayFlush( HttpServletRequest   req,
                               HttpServletResponse  res,
                               HttpSession          sess )
    throws IOException, ServletException
    {

        String       jahiaDisplayMessage  =  (String)  sess.getAttribute(CLASS_NAME + "jahiaDisplayMessage");
        String       keeprecent           =  (String)  req.getParameter("keeprecent");
        StringBuffer buf                  =  new StringBuffer();
        String       jsp_template         =  JSP_PATH + "logs_flushconfirm.jsp";

            // set request attributes...
            Boolean keeprecentlogs =  new Boolean(keeprecent);
            sess.setAttribute("keeprecentlogs", keeprecentlogs );
            if( !keeprecentlogs.booleanValue() ) {
                req.setAttribute("engineMessage", "");
                JahiaAdministration.doRedirect( req, res, sess, jsp_template );

            } else {
                try {
                    String  maxLogsDaysStr = (String) req.getParameter("maxlogsdays");
                    Integer maxlogsdays = new Integer(maxLogsDaysStr.trim());

                    if(maxlogsdays.intValue() < 1) {
                        sess.setAttribute(CLASS_NAME + "jahiaDisplayMessage",  "The number of days you entered is invalid");
                        sess.setAttribute("maxlogsdays", null);
                        displayView( req, res, sess );
                    } else {
                        sess.setAttribute("maxlogsdays", maxlogsdays);
                        buf.append(" older than ");
                        buf.append(maxlogsdays.toString());
                        buf.append(" days");
                        sess.setAttribute(CLASS_NAME + "jahiaDisplayMessage",  jahiaDisplayMessage);
                        req.setAttribute("engineMessage", buf.toString());
                        JahiaAdministration.doRedirect( req, res, sess, jsp_template );
                    }
                }
                catch (ClassCastException cce) {
                    sess.setAttribute(CLASS_NAME + "jahiaDisplayMessage",  "Your request could not be fulfilled");
                    displayView( req, res, sess );
                }
                catch (NumberFormatException nfe) {
                    sess.setAttribute(CLASS_NAME + "jahiaDisplayMessage",  "The number of days you entered is invalid");
                    displayView( req, res, sess );
                }
            }
    } // end displayFlush



    /**
     * Remove all audit log entries.
     *
     * @author Mikhael Janson
     * @param   req       the HttpServletRequest object
     * @param   res       the HttpServletResponse object
     * @param   sess      the HttpSession object
     */
    private void processFlush( HttpServletRequest   req,
                               HttpServletResponse  res,
                               HttpSession          sess )
    throws IOException, ServletException
    {

        String   jahiaDisplayMessage  =  (String)  sess.getAttribute(CLASS_NAME + "jahiaDisplayMessage");
        Boolean  keeprecentlogs       =  (Boolean) sess.getAttribute("keeprecentlogs");
        Integer  maxlogsdays          =  (keeprecentlogs.booleanValue()) ? (Integer) sess.getAttribute("maxlogsdays") : null ;

        if (lMgr !=null) {

            // flush logs
            lMgr.flushLogs( ((JahiaUser) sess.getAttribute(ParamBean.SESSION_USER)), maxlogsdays );
        }

        // set request attributes...
        sess.setAttribute(CLASS_NAME + "jahiaDisplayMessage",  jahiaDisplayMessage);
        displayView( req, res, sess );

    } // end processFlush


} // end class ManageLogs