refactoring for dependency injection and testability.

laravel/cache/file.php

@@ -1,75 +1,21 @@
 <?php namespace Laravel\Cache;
 
-/**
- * Wrap the file functions in a class that can be injected into driver.
- * Since the file functions are global, the driver is untestable without
- * injecting a wrapper around them.
- */
-class File_Engine {
-
-	/**
-	 * Determine if a file exists.
-	 *
-	 * @param  string  $file
-	 * @return bool
-	 */
-	public function exists($file)
-	{
-		return file_exists($file);
-	}
-
-	/**
-	 * Get the contents of a file.
-	 *
-	 * @param  string  $file
-	 * @return string
-	 */
-	public function get($file)
-	{
-		return file_get_contents($file);
-	}
-
-	/**
-	 * Write to a file.
-	 *
-	 * @param  string  $file
-	 * @param  string  $value
-	 * @return void
-	 */
-	public function put($file, $value)
-	{
-		file_put_contents($file, $value, LOCK_EX);
-	}
-
-	/**
-	 * Delete a file.
-	 *
-	 * @param  string  $file
-	 * @return void
-	 */
-	public function forget($file)
-	{
-		@unlink($file);
-	}
-
-}
-
 class File extends Driver {
 
 	/**
-	 * The File cache engine.
+	 * The file manager instance.
 	 *
-	 * @var File_Engine
+	 * @var Laravel\File
 	 */
 	private $file;
 
 	/**
 	 * Create a new File cache driver instance.
 	 *
-	 * @param  File_Engine  $file
+	 * @param  Laravel\File  $file
 	 * @return void
 	 */
-	public function __construct(File_Engine $file)
+	public function __construct(\Laravel\File $file)
 	{
 		$this->file = $file;
 	}
@@ -134,7 +80,7 @@ class File extends Driver {
 	 */
 	public function forget($key)
 	{
-		$this->file->forget(CACHE_PATH.$key);
+		$this->file->delete(CACHE_PATH.$key);
 	}
 
 }

laravel/cache/manager.php

@@ -0,0 +1,65 @@
+<?php namespace Laravel\Cache;
+
+use Laravel\IoC;
+use Laravel\Config;
+
+class Manager {
+
+	/**
+	 * All of the active cache drivers.
+	 *
+	 * @var Cache\Driver
+	 */
+	public static $drivers = array();
+
+	/**
+	 * Get a cache driver instance.
+	 *
+	 * If no driver name is specified, the default cache driver will be returned
+	 * as defined in the cache configuration file.
+	 *
+	 * <code>
+	 *		// Get the default cache driver
+	 *		$driver = Cache::driver();
+	 *
+	 *		// Get the APC cache driver
+	 *		$apc = Cache::driver('apc');
+	 * </code>
+	 *
+	 * @param  string        $driver
+	 * @return Cache\Driver
+	 */
+	public static function driver($driver = null)
+	{
+		if (is_null($driver)) $driver = Config::get('cache.driver');
+
+		if ( ! array_key_exists($driver, static::$drivers))
+		{
+			if ( ! in_array($driver, array('apc', 'file', 'memcached')))
+			{
+				throw new \Exception("Cache driver [$driver] is not supported.");
+			}
+
+			return static::$drivers[$driver] = IoC::container()->resolve('laravel.cache.'.$driver);
+		}
+
+		return static::$drivers[$driver];
+	}
+
+	/**
+	 * Pass all other methods to the default cache driver.
+	 *
+	 * Passing method calls to the driver instance provides a convenient API for the developer
+	 * when always using the default cache driver.
+	 *
+	 * <code>
+	 *		// Get an item from the default cache driver
+	 *		$name = Cache::get('name');
+	 * </code>
+	 */
+	public static function __callStatic($method, $parameters)
+	{
+		return call_user_func_array(array(static::driver(), $method), $parameters);
+	}
+
+}