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<?php namespace Illuminate\Support;
use ReflectionClass;
abstract class ServiceProvider {
/** * The application instance. * * @var \Illuminate\Foundation\Application */ protected $app;
/** * Indicates if loading of the provider is deferred. * * @var bool */ protected $defer = false;
/** * Create a new service provider instance. * * @param \Illuminate\Foundation\Application $app * @return void */ public function __construct($app) { $this->app = $app; }
/** * Bootstrap the application events. * * @return void */ public function boot() {}
/** * Register the service provider. * * @return void */ abstract public function register();
/** * Register the package's component namespaces. * * @param string $package * @param string $namespace * @param string $path * @return void */ public function package($package, $namespace = null, $path = null) { $namespace = $this->getPackageNamespace($package, $namespace);
// In this method we will register the configuration package for the package // so that the configuration options cleanly cascade into the application // folder to make the developers lives much easier in maintaining them. $path = $path ?: $this->guessPackagePath();
$config = $path.'/config';
if ($this->app['files']->isDirectory($config)) { $this->app['config']->package($package, $config, $namespace); }
// Next we will check for any "language" components. If language files exist // we will register them with this given package's namespace so that they // may be accessed using the translation facilities of the application. $lang = $path.'/lang';
if ($this->app['files']->isDirectory($lang)) { $this->app['translator']->addNamespace($namespace, $lang); }
// Next, we will see if the application view folder contains a folder for the // package and namespace. If it does, we'll give that folder precedence on // the loader list for the views so the package views can be overridden. $appView = $this->getAppViewPath($package);
if ($this->app['files']->isDirectory($appView)) { $this->app['view']->addNamespace($namespace, $appView); }
// Finally we will register the view namespace so that we can access each of // the views available in this package. We use a standard convention when // registering the paths to every package's views and other components. $view = $path.'/views';
if ($this->app['files']->isDirectory($view)) { $this->app['view']->addNamespace($namespace, $view); } }
/** * Guess the package path for the provider. * * @return string */ public function guessPackagePath() { $path = with(new ReflectionClass($this))->getFileName();
return realpath(dirname($path).'/../../'); }
/** * Determine the namespace for a package. * * @param string $package * @param string $namespace * @return string */ protected function getPackageNamespace($package, $namespace) { if (is_null($namespace)) { list($vendor, $namespace) = explode('/', $package); }
return $namespace; }
/** * Register the package's custom Artisan commands. * * @param array $commands * @return void */ public function commands($commands) { $commands = is_array($commands) ? $commands : func_get_args();
// To register the commands with Artisan, we will grab each of the arguments // passed into the method and listen for Artisan "start" event which will // give us the Artisan console instance which we will give commands to. $events = $this->app['events'];
$events->listen('artisan.start', function($artisan) use ($commands) { $artisan->resolveCommands($commands); }); }
/** * Get the application package view path. * * @param string $package * @return string */ protected function getAppViewPath($package) { return $this->app['path']."/views/packages/{$package}"; }
/** * Get the services provided by the provider. * * @return array */ public function provides() { return array(); }
/** * Get the events that trigger this service provider to register. * * @return array */ public function when() { return array(); }
/** * Determine if the provider is deferred. * * @return bool */ public function isDeferred() { return $this->defer; }
}
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