- $this->loadedTemplates = new FrameworkArrayObject();
- }
-
- /**
- * Private getter for language instance
- *
- * @return $langInstance An instance to the language sub-system
- */
- private function getLanguageInstance () {
- return $this->langInstance;
- }
-
- /**
- * Private getter for file IO instance
- *
- * @return $fileIOInstance An instance to the file I/O sub-system
- */
- private function getFileIOInstance () {
- return $this->fileIOInstance;
- }
-
- /**
- * Prepare the template engine (TemplateEngine by default) for a give
- * application helper instance (ApplicationHelper by default).
- *
- * @param $appInstance An application helper instance
- * @return $tplEngine The template engine instance
- * @throws NullPointerException If the template engine could not
- * be initialized
- * @throws UnsupportedTemplateEngineException If $tplEngine is an
- * unsupported template engine
- */
- private function prepareTemplateEngine (BaseFrameworkSystem $appInstance) {
- // Generate FQFN for all application templates
- $fqfn = sprintf("%s%s/%s/%s",
- PATH,
- $this->getConfigInstance()->readConfig("application_path"),
- strtolower($appInstance->getAppShortName()),
- $this->getConfigInstance()->readConfig("tpl_base_path")
- );
-
- // Initialize the template engine
- $tplEngine = null;
- $eval = sprintf("\$tplEngine = %s::create%s(
- \"%s\",
- \$this->getLanguageInstance(),
- \$this->getFileIOInstance()
-);",
- $this->getConfigInstance()->readConfig("tpl_engine"),
- $this->getConfigInstance()->readConfig("tpl_engine"),
- $fqfn
- );
-
- // Debug message
- if ((!is_null($this->getDebugInstance())) && (defined('DEBUG_EVAL'))) {
- $this->getDebugInstance()->output(sprintf("[%s:] Konstruierte PHP-Anweisung: <pre><em>%s</em></pre><br />\n",
- $this->__toString(),
- htmlentities($eval)
- ));
- }
-
- // Run the command
- @eval($eval);
-
- // Is it a valid instance?
- if (is_null($tplEngine)) {
- // No class returned
- throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
- } elseif (!$tplEngine instanceof CompileableTemplate) {
- // Not an object! ;-(
- throw new UnsupportedTemplateEngineException($tplEngine, self::EXCEPTION_TEMPLATE_ENGINE_UNSUPPORTED);
- }
-
- // Return the prepared instance
- return $tplEngine;