current state as framework

core/Logger.inc

@@ -0,0 +1,116 @@
+<?php
+
+	/**
+	 * NRE
+	 *
+	 * @author	coderkun <olli@coderkun.de>
+	 * @copyright	2013 coderkun (http://www.coderkun.de)
+	 * @license	http://www.gnu.org/licenses/gpl.html
+	 * @link	http://www.coderkun.de/projects/nre
+	 */
+	
+	namespace nre\core;
+	
+	
+	/**
+	 * Class to log messages to different targets.
+	 * 
+	 * @author	coderkun <olli@coderkun.de>
+	 */
+	class Logger
+	{
+		/**
+		 * Log mode: Detect automatic
+		 * 
+		 * @var int
+		 */
+		const LOGMODE_AUTO = 0;
+		/**
+		 * Log mode: Print to screen
+		 * 
+		 * @var int
+		 */
+		const LOGMODE_SCREEN = 1;
+		/**
+		 * Log mode: Use PHP-logging mechanism
+		 * 
+		 * @var int
+		 */
+		const LOGMODE_PHP = 2;
+		
+		
+		
+		
+		/**
+		 * Construct a new logger.
+		 */
+		public function __construct()
+		{
+		}
+		
+		
+		
+		
+		/**
+		 * Log a message.
+		 * 
+		 * @param	string	$message	Message to log
+		 * @param	int	$logMode	Log mode to use
+		 */
+		public function log($message, $logMode=self::LOGMODE_SCREEN)
+		{
+			// Choose log mode automatically
+			if($logMode == self::LOGMODE_AUTO) {
+				$logMode = $this->getAutoLogMode();
+			}
+			
+			// Print message to screen
+			if($logMode & self::LOGMODE_SCREEN) {
+				$this->logToScreen($message);
+			}
+			
+			// Use PHP-logging mechanism
+			if($logMode & self::LOGMODE_PHP) {
+				$this->logToPhp($message);
+			}
+		}
+		
+		
+		
+		
+		/**
+		 * Print a message to screen.
+		 * 
+		 * @param	string	$message	Message to print
+		 */
+		private function logToScreen($message)
+		{
+			echo "$message<br>\n";
+		}
+		
+		
+		/**
+		 * Log a message by using PHP-logging mechanism.
+		 * 
+		 * @param	string	$message	Message to log
+		 */
+		private function logToPhp($message)
+		{
+			error_log($message, 0);
+		}
+		
+		
+		/**
+		 * Detect log mode automatically by distinguishing between
+		 * production and test environment.
+		 * 
+		 * @return	int	Automatically detected log mode
+		 */
+		private function getAutoLogMode()
+		{
+			return ($_SERVER['SERVER_ADDR'] == '127.0.0.1') ? self::LOGMODE_SCREEN : self::LOGMODE_PHP;
+		}
+		
+	}
+
+?>