public void preRenderPage()

in empire-db-jsf2/src/main/java/org/apache/empire/jsf2/pages/Page.java [139:233]
78 lines of code
14 McCabe index (conditional complexity)

    public void preRenderPage(FacesContext context)
    {
        if (this.initialized)
        {
            // PageBean.log.error("PageBean {} is already initialized.", name());
            try
            {
                Page.log.debug("PageBean {} is already initialized. Calling doRefresh().", getPageName());
                doRefresh();
            }
            catch (Exception e)
            {
                logAndHandleActionException("doRefresh", e);
            }
            return; // already Initialized
        }

        // Check access
        try
        {
            checkPageAccess();
            // redirected?
            if (context.getResponseComplete())
                return;
        }
        catch (Exception e)
        {
            logAndHandleActionException("checkAccess", e);
            // redirected?
            if (context.getResponseComplete())
                return;
            // Oops, not redirected yet?
            if (getParentPage()!=null)
                navigateTo(getParentOutcome(true)); 
            // Done
            return;
        }

        // Initialize
        this.initialized = true;

        // String value of "null"?
        if (this.action!=null && "null".equals(this.action))
        {   log.warn("Invalid action name 'null' for {}", getClass().getName());
            this.action = null;
        }    
        
        // Execute Action
        if (this.action != null)
        {   try
            {   // Process action
                log.info("Processing action {} on {}.", String.valueOf(action), getPageName());
                Method method = getClass().getMethod(action);
                Object result = method.invoke(this);
                if (result != null)
                {
                    String outcome = result.toString();
                    // Retrieve the NavigationHandler instance..
                    NavigationHandler navHandler = context.getApplication().getNavigationHandler();
                    // Invoke nav handling..
                    navHandler.handleNavigation(context, action, outcome);
                    // Trigger a switch to Render Response if needed
                    context.renderResponse();
                    return;
                }
                restoreSessionMessage();
            }
            catch (NoSuchMethodException nsme)
            {
                logAndHandleActionException(action, nsme);
            }
            catch (Exception e)
            {
                logAndHandleActionException(action, e.getCause());
            }
            finally
            {
                // Clear action
                this.action = null; // Page.INVALID_ACTION;
            }
        }
        else
        {   // call default Action
            try
            {
                Page.log.debug("Initializing PageBean {}. Calling doInit()", getPageName());
                doInit();
                restoreSessionMessage();
            }
            catch (Exception e)
            {
                logAndHandleActionException("doInit", e);
            }
        }
    }