diff options
author | Matthieu Napoli <matthieu@mnapoli.fr> | 2015-03-10 05:34:18 +0300 |
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committer | Matthieu Napoli <matthieu@mnapoli.fr> | 2015-03-16 04:58:22 +0300 |
commit | bbae3aecca789e3bde2878f05e8d82ad5d064fa6 (patch) | |
tree | b4133ba09e7bba3e9d6093c88a5027195a2bf336 /core/Plugin/API.php | |
parent | ca2f0d3047cee0e084bf02d1e6bae4761eb7c3c0 (diff) |
Dependency injection in API classes
Diffstat (limited to 'core/Plugin/API.php')
-rw-r--r-- | core/Plugin/API.php | 56 |
1 files changed, 53 insertions, 3 deletions
diff --git a/core/Plugin/API.php b/core/Plugin/API.php index 4e5095a3aa..162c9e02f2 100644 --- a/core/Plugin/API.php +++ b/core/Plugin/API.php @@ -9,7 +9,8 @@ namespace Piwik\Plugin; -use Piwik\Singleton; +use Piwik\Container\StaticContainer; +use Psr\Log\LoggerInterface; /** * The base class of all API singletons. @@ -39,7 +40,56 @@ use Piwik\Singleton; * * @api */ -abstract class API extends Singleton +abstract class API { - + private static $instances; + + /** + * Returns the singleton instance for the derived class. If the singleton instance + * has not been created, this method will create it. + * + * @return static + */ + public static function getInstance() { + $class = get_called_class(); + + if (!isset(self::$instances[$class])) { + $container = StaticContainer::getContainer(); + + $refl = new \ReflectionClass($class); + + if (!$refl->getConstructor() || $refl->getConstructor()->isPublic()) { + self::$instances[$class] = $container->get($class); + } else { + /** @var LoggerInterface $logger */ + $logger = $container->get('Psr\Log\LoggerInterface'); + + // BC with API defining a protected constructor + $logger->notice('The API class {class} defines a protected constructor which is deprecated, make the constructor public instead', array('class' => $class)); + self::$instances[$class] = new $class; + } + } + + return self::$instances[$class]; + } + + /** + * Used in tests only + * @ignore + */ + public static function unsetInstance() + { + $class = get_called_class(); + unset(self::$instances[$class]); + } + + /** + * Sets the singleton instance. For testing purposes. + * @ignore + */ + public static function setSingletonInstance($instance) + { + $class = get_called_class(); + self::$instances[$class] = $instance; + } } |