1 files changed, 88 insertions, 0 deletions
diff --git a/lib/Bridge.php b/lib/Bridge.php
new file mode 100644
index 0000000..a2ae927
--- /dev/null
+++ b/lib/Bridge.php
@@ -0,0 +1,88 @@
+<?php
+require_once(__DIR__ . '/BridgeInterface.php');
+class Bridge {
+
+	static protected $dirBridge;
+
+	public function __construct(){
+		throw new \LogicException('Please use ' . __CLASS__ . '::create for new object.');
+	}
+
+	/**
+	* Create a new bridge object
+	* @param string $nameBridge Defined bridge name you want use
+	* @return Bridge object dedicated
+	*/
+	static public function create($nameBridge){
+		if(!preg_match('@^[A-Z][a-zA-Z0-9-]*$@', $nameBridge)) {
+			$message = <<<EOD
+'nameBridge' must start with one uppercase character followed or not by
+alphanumeric or dash characters!
+EOD;
+			throw new \InvalidArgumentException($message);
+		}
+
+		$nameBridge = $nameBridge . 'Bridge';
+		$pathBridge = self::getDir() . $nameBridge . '.php';
+
+		if(!file_exists($pathBridge)) {
+			throw new \Exception('The bridge you looking for does not exist. It should be at path '
+			. $pathBridge);
+		}
+
+		require_once $pathBridge;
+
+		if((new ReflectionClass($nameBridge))->isInstantiable()) {
+			return new $nameBridge();
+		}
+
+		return false;
+	}
+
+	static public function setDir($dirBridge){
+		if(!is_string($dirBridge)) {
+			throw new \InvalidArgumentException('Dir bridge must be a string.');
+		}
+
+		if(!file_exists($dirBridge)) {
+			throw new \Exception('Dir bridge does not exist.');
+		}
+
+		self::$dirBridge = $dirBridge;
+	}
+
+	static public function getDir(){
+		if(is_null(self::$dirBridge)) {
+			throw new \LogicException(__CLASS__ . ' class need to know bridge path !');
+		}
+
+		return self::$dirBridge;
+	}
+
+	/**
+	* Lists the available bridges.
+	* @return array List of the bridges
+	*/
+	static public function listBridges(){
+		$listBridge = array();
+		$dirFiles = scandir(self::getDir());
+
+		if($dirFiles !== false) {
+			foreach($dirFiles as $fileName) {
+				if(preg_match('@^([^.]+)Bridge\.php$@U', $fileName, $out)) {
+					$listBridge[] = $out[1];
+				}
+			}
+		}
+
+		return $listBridge;
+	}
+
+	static public function isWhitelisted($whitelist, $name){
+		return in_array($name, $whitelist)
+		|| in_array($name . '.php', $whitelist)
+		|| in_array($name . 'bridge', $whitelist) // DEPRECATED
+		|| in_array($name . 'bridge.php', $whitelist) // DEPRECATED
+		|| (count($whitelist) === 1 && trim($whitelist[0]) === '*');
+	}
+}