extractdeploysite.java

java 写的一个新闻发布系统

    //
    // EXTRACT SECTION
    //
    //--------------------------------------------------------------------------


    //--------------------------------------------------------------------------
    /**
     * Display the list of site the user can choose to extract
     *
     * @author  Khue Nguyen
     *
     * @param   request       Servlet request.
     * @param   response      Servlet response.
     * @param   session       Servlet session for the current user.
     */
    private void displayExtract( HttpServletRequest    request,
                                 HttpServletResponse   response,
                                 HttpSession           session )
    throws IOException, ServletException
    {

        JahiaConsole.println(CLASS_NAME+".displayExtract","started");
        try {

            Enumeration enum = siteServ.getSites();
            request.setAttribute("sitesList", enum);

            // retrieve previous form values...
            Vector selSiteIDs  	 	 =  (Vector) session.getAttribute(CLASS_NAME
                                        + "selSiteIDs");
            String jahiaExtractName  =  (String) session.getAttribute(CLASS_NAME
                                        + "jahiaExtractName");
            String jahiaExtractDesc  =  (String) session.getAttribute(CLASS_NAME
                                        + "jahiaExtractDesc");
            String warningMsg		 =  (String) session.getAttribute(CLASS_NAME
                                        + "warningMsg");


            // set default values (if necessary)...
            if (selSiteIDs == null ) 	 { selSiteIDs = new Vector();	 }
            if(jahiaExtractName == null) { jahiaExtractName	= "";        }
            if(jahiaExtractDesc == null) { jahiaExtractDesc = "";        }
            if(warningMsg == null) 		 { warningMsg = "";        		 }

            // set request attributes...
            request.setAttribute("selSiteIDs",  		selSiteIDs);
            request.setAttribute("jahiaExtractName",  	jahiaExtractName);
            request.setAttribute("jahiaExtractDesc",  	jahiaExtractDesc);
            request.setAttribute("warningMsg", 			warningMsg);

            JahiaAdministration.doRedirect( request, response, session,
                                        JSP_PATH + "extdep_site_extract.jsp" );

        } catch ( JahiaException je ){
            request.setAttribute("jahiaDisplayMessage",
                                    "An error occured while processing your request");
            JahiaAdministration.doRedirect( request,
                                            response,
                                            session,
                                            JSP_PATH + "menu.jsp" );
        }
    }


    //--------------------------------------------------------------------------
    /**
     * Display the extraction confirmation screen
     *
     * @author  Khue Nguyen
     *
     * @param   request       Servlet request.
     * @param   response      Servlet response.
     * @param   session       Servlet session for the current user.
     */
    private void displayExtractConfirmation( HttpServletRequest    request,
                                             HttpServletResponse   response,
                                             HttpSession           session )
    throws IOException, ServletException
    {

        JahiaConsole.println(CLASS_NAME+".displayExtractConfirmation","started");
        try {

            Enumeration enum = siteServ.getSites();
            request.setAttribute("sitesList", enum);

            // retrieve previous form values...
            Vector selSiteIDs  	 	 =  (Vector) session.getAttribute(CLASS_NAME
                                        + "selSiteIDs");
            String jahiaExtractName  =  (String) session.getAttribute(CLASS_NAME
                                        + "jahiaExtractName");
            String jahiaExtractDesc  =  (String) session.getAttribute(CLASS_NAME
                                        + "jahiaExtractDesc");
            String warningMsg		 =  (String) session.getAttribute(CLASS_NAME
                                        + "warningMsg");


            // set default values (if necessary)...
            if (selSiteIDs == null ) 	 { selSiteIDs = new Vector();	 }
            if(jahiaExtractName == null) { jahiaExtractName	= "";        }
            if(jahiaExtractDesc == null) { jahiaExtractDesc = "";        }
            if(warningMsg == null) 		 { warningMsg = "";        		 }

            // set request attributes...
            request.setAttribute("selSiteIDs",  		selSiteIDs);
            request.setAttribute("jahiaExtractName",  	jahiaExtractName);
            request.setAttribute("jahiaExtractDesc",  	jahiaExtractDesc);
            request.setAttribute("warningMsg", 			warningMsg);

            JahiaAdministration.doRedirect( request, response, session,
                                        JSP_PATH + "extdep_site_extractconfirmation.jsp" );

        } catch ( JahiaException je ){
            request.setAttribute("jahiaDisplayMessage",
                                    "An error occured while processing your request");
            JahiaAdministration.doRedirect( request,
                                            response,
                                            session,
                                            JSP_PATH + "extdep_site_extractconfirmation.jsp" );
        }
    }

    //--------------------------------------------------------------------------
    /**
     * Process and check the validity of extraction options.
     *
     * @author  Khue Nguyen
     *
     * @param   request       Servlet request.
     * @param   response      Servlet response.
     * @param   session       Servlet session for the current user.
     */
    private void processExtract( HttpServletRequest   request,
                                 HttpServletResponse  response,
                                 HttpSession          session )
    throws IOException, ServletException, JahiaException
    {
        JahiaConsole.println(CLASS_NAME+".processExtract","started");

		// start the chrono...
		long startTime = JahiaChrono.getInstance().start();

        synchronized (mLock){

            // Try to get the excluse lock on Jahia
            JahiaUser user = (JahiaUser)session.getAttribute(ParamBean.SESSION_USER);

            if ( user == null || !user.isAdminMember(0) ){
                session.setAttribute(CLASS_NAME + "jahiaDisplayMessage",  "Illegal Access Operation");
                JahiaAdministration.doRedirect( request, response, session, JSP_PATH + "menu.jsp" );
                return;
            }

            byte[] jahiaLock = null;
            boolean freeLock = true;

            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;
            }

            try {


                String confirmExtraction  =
                (String) request.getParameter("confirmExtraction");

                // the extraction folder
                File extFolder = null;

                // error status
                boolean err = false;

                // sites to extract
                String[] siteIDsArr = null;
                Vector selSiteIDs = null;

                String jahiaExtractName  = null;

                String jahiaExtractDesc  =  null;

                if ( confirmExtraction == null || !confirmExtraction.equals("yes") ){

                    // sites to extract
                    siteIDsArr = request.getParameterValues("sitesList");
                    selSiteIDs = new Vector();

                    if ( siteIDsArr != null ){
                        for ( int i=0 ; i<siteIDsArr.length ; i++ ){
                            int selSiteID = -1;
                            try {
                                selSiteID = Integer.parseInt(siteIDsArr[i]);
                            } catch (Throwable t){
                                request.setAttribute("jahiaDisplayMessage",
                                            "An error occured while processing your request");
                                JahiaAdministration.doRedirect( request,
                                                            response,
                                                            session,
                                                            JSP_PATH + "menu.jsp" );
                            }
                            selSiteIDs.add(new Integer(selSiteID));
                        }
                    }


                    jahiaExtractName  =
                    (String) request.getParameter("jahiaExtractName");

                    jahiaExtractDesc  =
                    (String) request.getParameter("jahiaExtractDesc");

                    if ( jahiaExtractDesc == null || jahiaExtractDesc.trim().equals("") ){
                        jahiaExtractDesc = "No description";
                    }

                    session.setAttribute(CLASS_NAME + "selSiteIDs",selSiteIDs);
                    session.setAttribute(CLASS_NAME + "jahiaExtractName",jahiaExtractName);
                    session.setAttribute(CLASS_NAME + "jahiaExtractDesc",jahiaExtractDesc);

                    if (selSiteIDs.size()==0){
                        session.setAttribute(CLASS_NAME + "warningMsg",
                                                "At least one site must be selected");
                        displayExtract(request, response, session);
                        return;
                    }

                    // set default values (if necessary)...
                    if(jahiaExtractName == null) { jahiaExtractName	= "";        }
                    if(jahiaExtractDesc == null) { jahiaExtractDesc = "";        }

                    // check user input validity
                    if ( (jahiaExtractName == null)
                         || (jahiaExtractName.trim().length()==0) ){
                        session.setAttribute(CLASS_NAME + "warningMsg",
                        "Please complete requested informations");
                        err = true;
                    } else if ( jahiaExtractName.indexOf(" ") != -1 ){
                        session.setAttribute(CLASS_NAME + "warningMsg",
                        "The extraction name must be a unique word");
                        err = true;
                    } else if ( !isExtractNameValid(jahiaExtractName) ){
                        session.setAttribute(CLASS_NAME + "warningMsg",
                        "Invalid Characters in Extraction Name");
                        err = true;
                    } else if ( checkExtractionFolder(jahiaExtractName) ){
                        session.setAttribute(CLASS_NAME + "warningMsg",
                        "Please choose another Extraction Name");
                        err = true;
                    }


                    if ( !err )	{
                        displayExtractConfirmation(request,response,session);
                    } else {
                        displayExtract(request, response, session);
                    }
                    return;
                }



                // Get confirmation so start extraction

                // retrieve previous form values...
                selSiteIDs  	 	 =  (Vector) session.getAttribute(CLASS_NAME
                                            + "selSiteIDs");
                jahiaExtractName  =  (String) session.getAttribute(CLASS_NAME
                                            + "jahiaExtractName");
                jahiaExtractDesc  =  (String) session.getAttribute(CLASS_NAME
                                            + "jahiaExtractDesc");

                if ( selSiteIDs == null ||
                     jahiaExtractName == null ||
                     jahiaExtractDesc == null ){

                    request.setAttribute("jahiaDisplayMessage",
                                         "An error occured while processing your request\n");
                    throw new JahiaException("Error occured while processing your request",
                    CLASS_NAME+": Invalid data in session",
                    JahiaException.FILE_ERROR,
                    JahiaException.ERROR);
                }

                // create the extraction folder
                extFolder = createExtractionFolder(jahiaExtractName);
                if ( !extFolder.isDirectory() ){
                    request.setAttribute("jahiaDisplayMessage",
                                         "An error occured while processing your request\n"
                                         +"Cannot create extraction folder");
                    throw new JahiaException("Error occured while processing your request",
                    CLASS_NAME+": Cannot create extraction folder",
                    JahiaException.FILE_ERROR,
                    JahiaException.ERROR);
                }

                mSiteExtractionFolder = extFolder.getAbsolutePath();

                // set request attributes...
                if ( err ){
                    displayExtract(request, response, session);
                } else {

                    // change session time out to 1 hour ( the extraction can be very long !)
                    int timeOut = session.getMaxInactiveInterval();

                    try {

                        session.setMaxInactiveInterval(7200);

                        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;
                        }

                        // start extraction here
                        JahiaConsole.println(CLASS_NAME+".processExtract",
                        "start extract " + selSiteIDs.size() + " sites");