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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\HttpKernel\Bundle;
use Symfony\Component\DependencyInjection\ContainerAwareTrait;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Container;
use Symfony\Component\Console\Application;
use Symfony\Component\Finder\Finder;
use Symfony\Component\DependencyInjection\Extension\ExtensionInterface;
/**
* An implementation of BundleInterface that adds a few conventions
* for DependencyInjection extensions and Console commands.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
abstract class Bundle implements BundleInterface
{
use ContainerAwareTrait;
protected $name;
protected $extension;
protected $path;
/**
* Boots the Bundle.
*/
public function boot()
{
}
/**
* Shutdowns the Bundle.
*/
public function shutdown()
{
}
/**
* Builds the bundle.
*
* It is only ever called once when the cache is empty.
*
* This method can be overridden to register compilation passes,
* other extensions, ...
*
* @param ContainerBuilder $container A ContainerBuilder instance
*/
public function build(ContainerBuilder $container)
{
}
/**
* Returns the bundle's container extension.
*
* @return ExtensionInterface|null The container extension
*
* @throws \LogicException
*/
public function getContainerExtension()
{
if (null === $this->extension) {
$extension = $this->createContainerExtension();
if (null !== $extension) {
if (!$extension instanceof ExtensionInterface) {
throw new \LogicException(sprintf('Extension %s must implement Symfony\Component\DependencyInjection\Extension\ExtensionInterface.', get_class($extension)));
}
// check naming convention
$basename = preg_replace('/Bundle$/', '', $this->getName());
$expectedAlias = Container::underscore($basename);
if ($expectedAlias != $extension->getAlias()) {
throw new \LogicException(sprintf(
'Users will expect the alias of the default extension of a bundle to be the underscored version of the bundle name ("%s"). You can override "Bundle::getContainerExtension()" if you want to use "%s" or another alias.',
$expectedAlias, $extension->getAlias()
));
}
$this->extension = $extension;
} else {
$this->extension = false;
}
}
if ($this->extension) {
return $this->extension;
}
}
/**
* Gets the Bundle namespace.
*
* @return string The Bundle namespace
*/
public function getNamespace()
{
$class = get_class($this);
return substr($class, 0, strrpos($class, '\\'));
}
/**
* Gets the Bundle directory path.
*
* @return string The Bundle absolute path
*/
public function getPath()
{
if (null === $this->path) {
$reflected = new \ReflectionObject($this);
$this->path = dirname($reflected->getFileName());
}
return $this->path;
}
/**
* Returns the bundle parent name.
*
* @return string The Bundle parent name it overrides or null if no parent
*/
public function getParent()
{
}
/**
* Returns the bundle name (the class short name).
*
* @return string The Bundle name
*/
final public function getName()
{
if (null !== $this->name) {
return $this->name;
}
$name = get_class($this);
$pos = strrpos($name, '\\');
return $this->name = false === $pos ? $name : substr($name, $pos + 1);
}
/**
* Finds and registers Commands.
*
* Override this method if your bundle commands do not follow the conventions:
*
* * Commands are in the 'Command' sub-directory
* * Commands extend Symfony\Component\Console\Command\Command
*
* @param Application $application An Application instance
*/
public function registerCommands(Application $application)
{
if (!is_dir($dir = $this->getPath().'/Command')) {
return;
}
if (!class_exists('Symfony\Component\Finder\Finder')) {
throw new \RuntimeException('You need the symfony/finder component to register bundle commands.');
}
$finder = new Finder();
$finder->files()->name('*Command.php')->in($dir);
$prefix = $this->getNamespace().'\\Command';
foreach ($finder as $file) {
$ns = $prefix;
if ($relativePath = $file->getRelativePath()) {
$ns .= '\\'.str_replace('/', '\\', $relativePath);
}
$class = $ns.'\\'.$file->getBasename('.php');
if ($this->container) {
$alias = 'console.command.'.strtolower(str_replace('\\', '_', $class));
if ($this->container->has($alias)) {
continue;
}
}
$r = new \ReflectionClass($class);
if ($r->isSubclassOf('Symfony\\Component\\Console\\Command\\Command') && !$r->isAbstract() && !$r->getConstructor()->getNumberOfRequiredParameters()) {
$application->add($r->newInstance());
}
}
}
/**
* Returns the bundle's container extension class.
*
* @return string
*/
protected function getContainerExtensionClass()
{
$basename = preg_replace('/Bundle$/', '', $this->getName());
return $this->getNamespace().'\\DependencyInjection\\'.$basename.'Extension';
}
/**
* Creates the bundle's container extension.
*
* @return ExtensionInterface|null
*/
protected function createContainerExtension()
{
if (class_exists($class = $this->getContainerExtensionClass())) {
return new $class();
}
}
}
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