/**
* Loads a component by class name.
*
* If the component class has a method named "ACCEPT_CONTEXT"
* that method will be invoked on the object instance
* after the component is initialized.
* The context object (instance of this class) will be passed in as
* an argument to ACCEPT_CONTEXT.
*
* @see DF_Web_Component_Loader for component initialization
* @param string $class
* @return DF_Web_Component
*/
protected function component($class)
{
if (!is_string($class)) {
throw new DF_Error_InvalidArgumentException("class", $class, "string");
}
#self::$LOGGER->debug("Looking up component: $class");
$component = NULL;
try {
$component = $this->component_loader->component($class);
} catch (DF_Web_Component_LoaderException $ex) {
self::$LOGGER->error("Error loading component {$class}:\n" . $ex->__toString());
// Dont need the entire stack trace of the component loader
throw new DF_Web_Exception("Failed loading component {$class}:\n" . $ex->getMessage());
} catch (DF_Web_Exception $ex) {
#self::$LOGGER->error("Error initializing component $class:\n".$ex->__toString());
throw $ex;
#throw new DF_Web_Exception($ex->getMessage());
}
if (method_exists($component, 'ACCEPT_CONTEXT')) {
try {
return $component->ACCEPT_CONTEXT($this);
} catch (DF_Web_Exception $ex) {
throw new DF_Web_Exception("Failed to call {$class}->ACCEPT_CONTEXT(..)", $ex);
#throw new DF_Web_Exception(
# "Failed executing {$class}->ACCEPT_CONTEXT(): "
# .$ex->getMessage().", exception in "
# .sprintf("%s(%d)",$ex->getFile(),$ex->getLine())
#);
}
}
return $component;
}
public function setUp()
{
$this->smarty = DF_Web_Component_Loader::component('DF_Web_View_Smarty', 'DF_Web');
}