managetemplates.java

java 写的一个新闻发布系统

            PropertiesManager properties =  new PropertiesManager( Jahia.getJahiaPropertiesFileName() );

            request.setAttribute("warningMsg","");

            JahiaSite site = (JahiaSite)request.getAttribute("site");

            String subAction 	= (String)request.getParameter("subaction");
            String templName 	= (String)request.getParameter("templName");
            String rootFolder 	= (String)request.getParameter("rootFolder");
            if ( rootFolder == null ){
                rootFolder = File.separator;
            }

            String fileName 	= (String)request.getParameter("fileName");
            String isAvailable 	= (String)request.getParameter("isAvailable");

            request.setAttribute("templName",JahiaTools.replaceNullString(templName,""));
            request.setAttribute("rootFolder",JahiaTools.replaceNullString(rootFolder,""));
            request.setAttribute("fileName",JahiaTools.replaceNullString(fileName,""));

            if ( isAvailable != null ){
                request.setAttribute("isAvailable",new Integer(1));
            } else {
                request.setAttribute("isAvailable",new Integer(0));
            }

            if ( subAction != null && subAction.equals("save") && canAddNew ){
                if ( templName == null || (templName.length()<=0)
                     || fileName == null || (fileName.length()<=0) ) {
                    request.setAttribute("warningMsg","Please complete requested informations (*)");
                } else {

                    // save definition in db
                    String path = this.context.getRealPath(properties.getProperty("jahiaTemplatesDiskPath") );

                    while ( rootFolder.startsWith("/")
                            || rootFolder.startsWith("\\")
                            || rootFolder.startsWith(".") ){
                        rootFolder = rootFolder.substring(1,rootFolder.length());
                    }

                    while ( rootFolder.endsWith("/")
                            || rootFolder.endsWith("\\") ){
                        rootFolder = rootFolder.substring(0,rootFolder.length()-1);
                    }

                    // check if the file really exist
                    StringBuffer tempFullPath = new StringBuffer (1024);
                    tempFullPath.append(path);
                    tempFullPath.append(File.separator);
                    tempFullPath.append(site.getSiteKey());
                    tempFullPath.append(File.separator);
                    tempFullPath.append(rootFolder);
                    tempFullPath.append(File.separator) ;
                    tempFullPath.append(fileName) ;

                    if ( !JahiaTools.checkFileNameCaseSensitive(tempFullPath.toString()) ){
                        request.setAttribute("warningMsg","Jahia cannot find the file "
                                                + fileName + " in the folder " + rootFolder);
                    } else if ( rootFolder.startsWith(".") ){
                        request.setAttribute("warningMsg","The template folder is not valid ");
                    } else {
                        StringBuffer buff = new StringBuffer (1024);
                        buff.append(properties.getProperty("jahiaTemplatesDiskPath"));
                        buff.append(site.getSiteKey());
                        buff.append("/") ;
                        if ( !rootFolder.equals("") ){
                            buff.append(rootFolder);
                            buff.append("/") ;
                        }
                        buff.append(fileName) ;
                        String sourcePath = JahiaTools.replacePattern(buff.toString(),"\\","/");

                        JahiaPageDefinition def = pageTempServ.getPageTemplateBySourcePath(site.getID(),sourcePath);
                        if ( def == null || !def.getSourcePath().equals(sourcePath) ){

                            pageTempServ.createPageTemplate (

                                        site.getID(),
                                        templName,
                                        sourcePath,
                                        (isAvailable != null),
                                        "",      	// no image
                                        site.getAclID() );

                            request.setAttribute("warningMsg","The template "
                                                + fileName + " has been successfully added in Jahia");
                        } else {
                            request.setAttribute("warningMsg",
                            "This template is already registered in Jahia");
                        }
                    }
                }

            }

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

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


    } // end addTemplate





    protected String getTemplatesContext(HttpSession session){

        String templatesContext = null;

        // try to get from session
        templatesContext = (String)session.getAttribute(CLASS_NAME + "jahiaTemplatesDiskPath");
        if ( templatesContext == null ){

            PropertiesManager props =  new PropertiesManager( Jahia.getJahiaPropertiesFileName() );

            if ( props!= null ){

                templatesContext = (String)props.getProperty("jahiaTemplatesDiskPath");

                if ( templatesContext != null ){
                    session.setAttribute(CLASS_NAME + "jahiaTemplatesDiskPath", templatesContext);
                }
            }
        }

        return templatesContext;
    }


    /**
     * Display a custom version of the pages settings view, using doRedirect().
     * This form prompts the user to choose an alternative template for any pages
     * currently referenced.
     *
     * @author  Alexandre Kraft
     * @author  Mikha雔 Janson
     *
     * @param   request       Servlet request.
     * @param   response      Servlet response.
     * @param   session       Servlet session for the current user.
     * @param   criticalPages an <code>List</code> of <code>JahiaPage</code> objects referencing the template we want to delete.
     * @param   templ          a reference to the template we want to delete.
     */
    private void displaySwap( HttpServletRequest    request,
                              HttpServletResponse   response,
                              HttpSession           session,
                              List                  criticalPages,
                              JahiaPageDefinition   templ )
    throws IOException, ServletException
    {
        try {

            // get all pages id...
            JahiaPageBaseService pageService       = JahiaPageBaseService.getInstance();

            // get all pages infos...
            Vector        allPagesInfosVector      = new Vector();
            Vector        allTemplatesVector       = new Vector();
            for (int i=0; i<criticalPages.size(); i++) {
                JahiaPage page = (JahiaPage) criticalPages.get(i);
                allPagesInfosVector.add (page);
            }

            // get homepage id for the current site...
            Integer homePageID = new Integer( site.getHomePageID() );

            // retrieve previous form values...
            Integer basePageID           = (Integer) request.getAttribute(CLASS_NAME + "basePageID");
            Integer baseTemplateID       = (Integer) request.getAttribute(CLASS_NAME + "baseTemplateID");

            // get only visible templates
            Enumeration completeTemplatesEnumeration =  ServicesRegistry.getInstance().getJahiaPageTemplateService().getPageTemplates (site.getID(), true);

            // exclude the template we want to delete...
            while (completeTemplatesEnumeration.hasMoreElements()) {
                JahiaPageDefinition template = (JahiaPageDefinition) completeTemplatesEnumeration.nextElement();
                if(template.getID() != templ.getID()) {
                    allTemplatesVector.add (template);
                }
            }
            Enumeration allTemplatesEnumeration = allTemplatesVector.elements();

            // set default values...
            if(basePageID == null)     {  basePageID     =  new Integer(0);  }
            if(baseTemplateID == null) {  baseTemplateID =  new Integer(0);  }
            if(homePageID == null)     {  homePageID     =  new Integer(0);  }

            // set all pages infos into an enumeration and redirect...
            request.setAttribute("homePageID",                homePageID);
            request.setAttribute("basePageID",                basePageID);
            request.setAttribute("baseTemplateID",            baseTemplateID);
            request.setAttribute("allTemplatesEnumeration",   allTemplatesEnumeration);
            request.setAttribute("allPagesInfosEnumeration",  allPagesInfosVector.elements());
            request.setAttribute("totalCriticalPages",        new Integer(criticalPages.size()));
            request.setAttribute("templ",                     templ);

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

            // reset message...
            session.setAttribute(CLASS_NAME + "jahiaDisplayMessage",  Jahia.COPYRIGHT);
        } catch (JahiaException je) {
        }
    } // end displaySwap


    /**
     * Process requested template swapping to remove references
     * to a given template from a page before deleteing the template.
     *
     * @author  Mikha雔 Janson
     *
     * @param   request       Servlet request.
     * @param   response      Servlet response.
     * @param   session       Servlet session for the current user.
     */
    protected void processSwap( HttpServletRequest   request,
                                HttpServletResponse  response,
                                HttpSession          session )
    throws Throwable
    {
        int       idPage            =  0;
        int       idTemplate        =  0;
        String    idPageString      =  "";
        String    idTemplateString  =  (String) request.getParameter("templateid").trim();
        String[]  pageIDs           =  request.getParameterValues( "pageids" );
        List      errors            =  new ArrayList();
        JahiaPage page              =  null;

        boolean   valid             = true;


        // check form validity...
        if ((pageIDs == null) || (pageIDs.length < 1)) {
            valid = false;
            errors.add("Please choose at least one page.");
        }

        if (idTemplateString.equals("0")) {
            valid = false;
            errors.add("Please choose a template.");
        }

        if (!valid) {
            request.setAttribute("manageTemplatesErrors", errors);
            idTemplate = 0;

        } else {

            try {

                idTemplate  = Integer.parseInt(idTemplateString);

            } catch (NumberFormatException nfe) {
                // FIXME - Mik : TEMPORARY...
                session.setAttribute(CLASS_NAME + "jahiaDisplayMessage",  "Invalid template reference.");
            }

        }

        // get form values...
        if (pageIDs != null) {

            String titlePage = "";

            for (int i = 0; i < pageIDs.length; i++) {
                idPageString  = pageIDs[i];

                try {
                    idPage    = Integer.parseInt(idPageString);

                    if (!swapTemplate(idPage, idTemplate)) {

                        titlePage = sReg.getJahiaPageService().lookupPage(idPage).getTitle();
                        errors.add("Couldn't change templates for page "+ titlePage);
                    }
                } catch (Exception e) {
                    //
                }
            }
        }
        request.setAttribute("processedSwap", new Integer(1));
        editTemplate (request, response, session);


    } // end processSwap



    /**
     * Perform a template swap on a page
     *
     * @author  Mikhael Janson
     *
     * @param   idPage        the ID of the page we want to update
     * @param   idTemplate    the ID of the template we want to assign this page
     */
    private boolean swapTemplate( int idPage, int idTemplate )
    {
        boolean   out  = false;
        JahiaPage page = null;
        try {

            JahiaPageService pageServ = ServicesRegistry.getInstance()
                                                        .getJahiaPageService();

            if ( idPage != 0 && idTemplate != 0 ){
                page =  pageServ.lookupPage(idPage);

                if ( page != null ){
                    // set new settings for this JahiaPage...
                    page.setPageTemplateID (idTemplate);
                    page.commitChanges (true);
                    // FIXME - mik : CHECK IF THE PAGE HAS CHANGED TEMPLATES, AND THE TEMPLATE IS VALID...
                    out = true;
                }

            }

        } catch ( JahiaException je ){
            //
        }

        return out;

    } // end swapTemplate



} // end ManageTemplates