class_FilterChain.php

Go to the documentation of this file.

<?php
class FilterChain extends BaseFrameworkSystem {
        private $filters = array();

        protected function __construct () {
                // Call parent constructor
                parent::__construct(__CLASS__);

                // Clean up a little
                $this->removeNumberFormaters();
                $this->removeSystemArray();
        }

        public final static function createFilterChain () {
                // Get a new instance
                $chainInstance = new FilterChain();

                // Return the prepared instance
                return $chainInstance;
        }

        public final function addFilter (Filterable $filterInstance) {
                $this->filters[] = $filterInstance;
        }

        public function processFilters (Requestable $requestInstance, Responseable $responseInstance) {
                // Run all filters
                //* DEBUG */ echo "COUNT=".count($this->filters)."<br />\n";
                foreach ($this->filters as $filterInstance) {
                        // Try to execute this filter
                        try {
                                //* DEBUG */ echo "FILTER: ".$filterInstance->__toString().": Processing started.<br />\n";
                                $filterInstance->execute($requestInstance, $responseInstance);
                                //* DEBUG */ echo "FILTER: ".$filterInstance->__toString().": Processing ended.<br />\n";
                        } catch (FilterChainException $e) {
                                // This exception can be thrown to just skip any further processing
                                break;
                        }
                } // END - foreach
        }
}

// [EOF]
?>