Classes List

Symfony\Component\DependencyInjection\Compiler\RegisterEnvVarProcessorsPass

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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\DependencyInjection\Compiler;

use Symfony\Component\DependencyInjection\Argument\ServiceClosureArgument;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\EnvVarProcessor;
use Symfony\Component\DependencyInjection\EnvVarProcessorInterface;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
use Symfony\Component\DependencyInjection\ParameterBag\EnvPlaceholderParameterBag;
use Symfony\Component\DependencyInjection\ServiceLocator;
use Symfony\Component\DependencyInjection\Reference;

/** * Creates the container.env_var_processors_locator service. * * @author Nicolas Grekas <p@tchwork.com> */
class RegisterEnvVarProcessorsPass implements CompilerPassInterface
{
    private static $allowedTypes = array('array''bool''float''int''string');

    public function process(ContainerBuilder $container)
    {
        $bag = $container->getParameterBag();
        $types = array();
        $processors = array();
        foreach ($container->findTaggedServiceIds('container.env_var_processor'as $id => $tags) {
            if (!$r = $container->getReflectionClass($class = $container->getDefinition($id)->getClass())) {
                throw new InvalidArgumentException(sprintf('Class "%s" used for service "%s" cannot be found.'$class$id));
            } elseif (!$r->isSubclassOf(EnvVarProcessorInterface::class)) {
                throw new InvalidArgumentException(sprintf('Service "%s" must implement interface "%s".'$idEnvVarProcessorInterface::class));
            }
            foreach ($class::getProvidedTypes() as $prefix => $type) {
                $processors[$prefix] = new ServiceClosureArgument(new Reference($id));
                $types[$prefix] = self::validateProvidedTypes($type$class);
            }
        }

        if ($bag instanceof EnvPlaceholderParameterBag) {
            foreach (EnvVarProcessor::getProvidedTypes() as $prefix => $type) {
                if (!isset($types[$prefix])) {
                    $types[$prefix] = self::validateProvidedTypes($typeEnvVarProcessor::class);
                }
            }
            $bag->setProvidedTypes($types);
        }

        if ($processors) {
            $container->register('container.env_var_processors_locator'ServiceLocator::class)
                ->setPublic(true)
                ->setArguments(array($processors))
            ;
        }
    }

    private static function validateProvidedTypes($types$class)
    {
        $types = explode('|'$types);

        foreach ($types as $type) {
            if (!in_array($typeself::$allowedTypes)) {
                throw new InvalidArgumentException(sprintf('Invalid type "%s" returned by "%s::getProvidedTypes()", expected one of "%s".'$type$classimplode('", "'self::$allowedTypes)));
            }
        }

        return $types;
    }
}