private IPage instantiatePage()

in tapestry-framework/src/org/apache/tapestry/pageload/PageLoader.java [661:718]
49 lines of code
7 McCabe index (conditional complexity)

    private IPage instantiatePage(String name, INamespace namespace, IComponentSpecification spec)
    {
        IPage result = null;

        String pageName = namespace.constructQualifiedName(name);
        String className = spec.getComponentClassName();
        ILocation location = spec.getLocation();

        if (Tapestry.isBlank(className))
        {
            if (LOG.isDebugEnabled())
                LOG.debug(
                    "Page "
                        + namespace.constructQualifiedName(name)
                        + " does not specify a component class.");

            className =
                _engine.getPropertySource().getPropertyValue(
                    "org.apache.tapestry.default-page-class");

            if (className == null)
                className = BasePage.class.getName();

            if (LOG.isDebugEnabled())
                LOG.debug("Defaulting to class " + className);
        }

        Class pageClass = _enhancer.getEnhancedClass(spec, className);
        String enhancedClassName = pageClass.getName();

        try
        {
            result = (IPage) pageClass.newInstance();

            result.setNamespace(namespace);
            result.setSpecification(spec);
            result.setPageName(pageName);
            result.setPage(result);
            result.setLocale(_locale);
            result.setLocation(location);
        }
        catch (ClassCastException ex)
        {
            throw new ApplicationRuntimeException(
                Tapestry.format("PageLoader.class-not-page", enhancedClassName),
                location,
                ex);
        }
        catch (Exception ex)
        {
            throw new ApplicationRuntimeException(
                Tapestry.format("PageLoader.unable-to-instantiate", enhancedClassName),
                location,
                ex);
        }

        return result;
    }