*
* @author Roland Haeder <webmaster@ship-simu.org>
* @version 0.0.0
- * @copyright Copyright (c) 2007 - 2009 Roland Haeder, this is free software
+ * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 Core Developer Team
* @license GNU GPL 3.0 or any newer version
* @link http://www.ship-simu.org
*
*/
private $filterChains = array();
+ // Exception constants
+ const EXCEPTION_FILTER_CHAIN_INVALID = 0xf10;
+
/**
* Protected constructor
*
* @param $filterChain Name of the filter chain
* @return void
*/
- private function initFilterChain ($filterChain) {
+ protected function initFilterChain ($filterChain) {
$this->filterChains[$filterChain] = ObjectFactory::createObjectByConfiguredName('filter_chain_class');
}
+ /**
+ * Adds a filter to a given filter group
+ *
+ * @param $filterGroup Group of the filter
+ * @param $filterInstance An instance of a filter
+ * @return void
+ */
+ protected function addFilter ($filterGroup, Filterable $filterInstance) {
+ $this->filterChains[$filterGroup]->addFilter($filterInstance);
+ }
+
/**
* Adds a filter to the pre filter chain
*
*/
public function addPreFilter (Filterable $filterInstance) {
// Add the pre filter
- $this->filterChains['pre']->addFilter($filterInstance);
+ $this->addFilter('pre', $filterInstance);
}
/**
*/
public function addPostFilter (Filterable $filterInstance) {
// Add the post filter
- $this->filterChains['post']->addFilter($filterInstance);
+ $this->addFilter('post', $filterInstance);
+ }
+
+ /**
+ * Executes given filter chain group
+ *
+ * @param $filterGroup Group of the filter to execute
+ * @param $requestInstance An instance of a request class
+ * @param $responseInstance An instance of a response class
+ * @return void
+ * @throws InvalidFilterChainException If the filter chain is invalid
+ */
+ protected function executeFilters ($filterGroup, Requestable $requestInstance, Responseable $responseInstance) {
+ // Test if the filter is there
+ if (!isset($this->filterChains[$filterGroup])) {
+ // Throw an exception here
+ throw new InvalidFilterChainException(array($this, $filterGroup), self::EXCEPTION_FILTER_CHAIN_INVALID);
+ } // END - if
+
+ // Run all filters
+ $this->filterChains[$filterGroup]->processFilters($requestInstance, $responseInstance);
}
/**
*/
protected function executePreFilters (Requestable $requestInstance, Responseable $responseInstance) {
// Execute all pre filters
- $this->filterChains['pre']->processFilters($requestInstance, $responseInstance);
+ $this->executeFilters('pre', $requestInstance, $responseInstance);
}
/**
*/
protected function executePostFilters (Requestable $requestInstance, Responseable $responseInstance) {
// Execute all post filters
- $this->filterChains['post']->processFilters($requestInstance, $responseInstance);
+ $this->executeFilters('post', $requestInstance, $responseInstance);
}
}