class_DebugMiddleware.php

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<?php
class DebugMiddleware extends BaseMiddleware implements Registerable {
        private $outputInstance = null;

        private static $thisInstance = null;

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

                // Set own instance
                self::$thisInstance = $this;
        }

        public final static function createDebugMiddleware ($debuggerClass) {
                // Create an instance if this middleware
                $debugInstance = new DebugMiddleware();

                // Is there a valid output instance provided?
                if ((!is_null($debuggerClass)) && (is_object($debuggerClass)) && ($debuggerClass instanceof OutputStreamer)) {
                        // Use the given output instance
                        $debugInstance->setOutputInstance($debuggerClass);
                } elseif ((!is_null($debuggerClass)) && (is_string($debuggerClass)) && (class_exists($debuggerClass))) {
                        // A name for a debug output class has been provided so we try to get it
                        $debuggerInstance = ObjectFactory::createObjectByName($debuggerClass);

                        // Set this as output class
                        $debugInstance->setOutputInstance($debuggerInstance);
                }

                // Return instance
                return $debugInstance;
        }

        public final static function getInstance() {
                return self::$thisInstance;
        }

        public final function setOutputInstance (OutputStreamer $outputInstance) {
                $this->outputInstance = $outputInstance;
        }

        public final function output ($outStream) {
                // Is the output stream set
                if (empty($outStream)) {
                        // Initialization phase
                        return;
                } // END - if

                // Use the output instance
                $this->outputInstance->outputStream($outStream);
        }
}

// [EOF]
?>