managesearch.java

java 写的一个新闻发布系统

                                HttpSession           session )
    throws IOException, ServletException, JahiaException
    {

        // set the default action
        request.setAttribute("subAction","chooseoperation");
        // set the default step
        request.setAttribute("go","change");

        // default values
        String operation = "doindex";

        String val = null;
        val = (String)values.get("operation");
        if ( val != null )
        {
            operation = val;
        }

        // check if the index exists yet for the current site.
        String indexPath = searchServ.getSiteIndex(site.getID());
        boolean indexExists = (indexPath != null );

        values.put("operation",operation);

        request.setAttribute("operation",operation);
        request.setAttribute("indexExists",new Boolean(indexExists));
        doRedirect( request, response, JSP + "operations" );
    }

    //--------------------------------------------------------------------------
    /**
     * Process the form choose operations.
     *
     * @author  Khue Nguyen <a href="mailto:[e-mail]">[e-mail]</a>
     *
     * @param   request       Servlet request.
     * @param   response      Servlet response.
     * @param   session       Servlet session for the current user.
     */
    private void processChooseOperation(	HttpServletRequest    request,
                                            HttpServletResponse   response,
                                            HttpSession           session )
    throws IOException, ServletException, JahiaException
    {

        // get submitted data
        String operation = request.getParameter("operation");
        if ( operation == null )
            displayMain(request,response,session);

        values.put("operation",operation);

        if ( operation.equals("doindex") ){
            displayIndexForm(request,response,session);
        } else if ( operation.equals("dooptimize") ){
            displayOptimizeForm(request,response,session);
        } else {
            displayMain( request, response, session );
        }
    }

    //--------------------------------------------------------------------------
    /**
     * Index the site.
     *
     * @author  Khue Nguyen <a href="mailto:[e-mail]">[e-mail]</a>
     *
     * @param   request       Servlet request.
     * @param   response      Servlet response.
     * @param   session       Servlet session for the current user.
     */
    private void processDoIndex(	HttpServletRequest    request,
                                    HttpServletResponse   response,
                                    HttpSession           session )
    throws IOException, ServletException, JahiaException
    {

        if ( !user.isRoot() ){
            displayError(request,response,"You must be logged as Root Administrator for this operation");
            return;
        }

        synchronized (mLock){

            // get submitted data
            String go = request.getParameter("go");
            if ( go == null )
                displayMain(request,response,session);

            if ( go.equals("ok") ){

                boolean result = false;
                byte[] jahiaLock = null;

                try {
                    try {
                        jahiaLock = Jahia.getLock(user,session);
                        if ( jahiaLock == null ){
                            session.setAttribute(CLASS_NAME + "jahiaDisplayMessage",
                            "Cannot lock jahia in exclusive access mode");
                            JahiaAdministration.doRedirect( request, response,
                                                session, JSP_PATH + "menu.jsp" );
                            return;
                        }
                    } catch ( JahiaException je ){
                        session.setAttribute(CLASS_NAME + "jahiaDisplayMessage",
                                                                je.getMessage());
                        JahiaAdministration.doRedirect( request, response,
                                                session, JSP_PATH + "menu.jsp" );
                        return;
                    }

                    // process the indexation of the full site.
                    result = searchServ.indexSite(site.getID());
                    searchServ.optimizeIndex(site.getID());

                } finally {
                    Jahia.releaseLock(jahiaLock);
                }

                request.setAttribute("result",new Boolean(result));

                // set the default action
                request.setAttribute("subAction","display");
                // set the default step
                request.setAttribute("go","change");

                doRedirect( request, response, JSP + "indexresult" );

            } else {
                displayMain(request,response,session);
            }
        }
    }

    //--------------------------------------------------------------------------
    /**
     * Display the indexation form.
     *
     * @author  Khue Nguyen <a href="mailto:[e-mail]">[e-mail]</a>
     *
     * @param   request       Servlet request.
     * @param   response      Servlet response.
     * @param   session       Servlet session for the current user.
     */
    private void displayIndexForm(	HttpServletRequest    request,
                                    HttpServletResponse   response,
                                    HttpSession           session )
    throws IOException, ServletException, JahiaException
    {

        // set the default action
        request.setAttribute("subAction","doindex");
        // set the default event
        request.setAttribute("go","change");

        doRedirect( request, response, JSP + "index" );
    }

    //--------------------------------------------------------------------------
    /**
     * Display the optimization form.
     *
     * @author  Khue Nguyen <a href="mailto:[e-mail]">[e-mail]</a>
     *
     * @param   request       Servlet request.
     * @param   response      Servlet response.
     * @param   session       Servlet session for the current user.
     */
    private void displayOptimizeForm(	HttpServletRequest    request,
                                        HttpServletResponse   response,
                                        HttpSession           session )
    throws IOException, ServletException, JahiaException
    {

        // set the default action
        request.setAttribute("subAction","dooptimize");
        // set the default event
        request.setAttribute("go","change");

        doRedirect( request, response, JSP + "optimize" );
    }

    //--------------------------------------------------------------------------
    /**
     * Optimize the index.
     *
     * @author  Khue Nguyen <a href="mailto:[e-mail]">[e-mail]</a>
     *
     * @param   request       Servlet request.
     * @param   response      Servlet response.
     * @param   session       Servlet session for the current user.
     */
    private void processDoOptimize(	HttpServletRequest    request,
                                    HttpServletResponse   response,
                                    HttpSession           session )
    throws IOException, ServletException, JahiaException
    {

        // get submitted data
        String go = request.getParameter("go");
        if ( go == null )
            displayMain(request,response,session);

        if ( go.equals("ok") ){
            // process the indexation of the full site.
            boolean result = searchServ.optimizeIndex(site.getID());

            request.setAttribute("result",new Boolean(result));

            // set the default action
            request.setAttribute("subAction","display");
            // set the default step
            request.setAttribute("go","change");

            doRedirect( request, response, JSP + "optimizeresult" );

        } else {
            displayMain(request,response,session);
        }
    }

    //--------------------------------------------------------------------------
    /**
     * Forward to error page.
     *
     * @author  Khue Nguyen <a href="mailto:[e-mail]">[e-mail]</a>
     *
     * @param   request       Servlet request.
     * @param   response      Servlet response.
     * @param   String        the warning msg.
     */
    private void displayError(	HttpServletRequest    request,
                                HttpServletResponse   response,
                                String msg )
    throws IOException, ServletException
    {
        request.setAttribute("warningMsg",msg);
        doRedirect( request, response, JSP + "error" );
    }





}