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<?php |
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/* |
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* This file is part of the Behat Symfony2Extension |
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* |
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* (c) Konstantin Kudryashov <[email protected]> |
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* |
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* This source file is subject to the MIT license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace Behat\Symfony2Extension\Context\Argument; |
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use Behat\Behat\Context\Argument\ArgumentResolver; |
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use ReflectionClass; |
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use Symfony\Component\DependencyInjection\ContainerInterface; |
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use Symfony\Component\DependencyInjection\Exception\ParameterNotFoundException; |
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use Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException; |
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use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException; |
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use Symfony\Component\HttpKernel\KernelInterface; |
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/** |
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* Resolves service arguments using the application container. |
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* |
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* @author Konstantin Kudryashov <[email protected]> |
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*/ |
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final class ServiceArgumentResolver implements ArgumentResolver |
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{ |
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private $kernel; |
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/** |
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* Initializes resolver. |
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* |
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* @param KernelInterface $kernel |
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*/ |
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public function __construct(KernelInterface $kernel) |
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{ |
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$this->kernel = $kernel; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function resolveArguments(ReflectionClass $classReflection, array $arguments) |
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{ |
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$newArguments = array(); |
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foreach ($arguments as $key => $argument) { |
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$newArguments[$key] = $this->resolveArgument($argument); |
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} |
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return $newArguments; |
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} |
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/** |
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* Resolves single argument using container. |
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* |
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* @param string $argument |
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* |
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* @return mixed |
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*/ |
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private function resolveArgument($argument) |
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{ |
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if (is_array($argument)) { |
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return array_map(array($this, 'resolveArgument'), $argument); |
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} |
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if (!is_string($argument)) { |
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return $argument; |
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} |
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$container = $this->kernel->getContainer(); |
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if ($service = $this->getService($container, $argument)) { |
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return $service; |
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} |
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$resolvedParam = $this->replaceParameters($container, $argument); |
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if (!is_string($resolvedParam)) { |
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return $resolvedParam; |
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} |
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return $this->escape($resolvedParam); |
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} |
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/** |
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* @param ContainerInterface $container |
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* @param string $argument |
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* @return object|null |
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* @throws ServiceNotFoundException |
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*/ |
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private function getService(ContainerInterface $container, $argument) |
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{ |
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if ($serviceName = $this->getServiceName($argument)) { |
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return $container->get($serviceName); |
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} |
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return null; |
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} |
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/** |
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* @param string $argument |
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* @return string|null |
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*/ |
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private function getServiceName($argument) |
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{ |
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if (preg_match('/^@[?]?([^@].*)$/', $argument, $matches)) { |
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return $matches[1]; |
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} |
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return null; |
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} |
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/** |
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* Sanitise the container key given by the Behat config file, |
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* and retrieve the parameter from the Container. |
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* |
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* First, check if the whole string is one substitution, if it is, then pull it from the container. |
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* |
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* Secondly, iterate over all substitutions in the string. Exception is thrown if referencing a |
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* collection-type parameter when the key is not an entire substitution. |
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* |
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* This is to handle the case where we're given an argument which should return a |
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* collection-type parameter from the container. |
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* |
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* @param ContainerInterface $container |
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* @param string $argument |
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* @throws InvalidArgumentException |
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* @return mixed |
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*/ |
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private function replaceParameters(ContainerInterface $container, $argument) |
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{ |
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if (preg_match('/^(?<!%)%([^%]+)%(?!%)$/', $argument, $matches)) { |
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$replaced = $matches[1]; |
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if ($container->hasParameter($replaced)) { |
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return $container->getParameter($replaced); |
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} |
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return $replaced; |
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} |
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return preg_replace_callback( |
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'/(?<!%)%([^%]+)%(?!%)/', |
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function ($matches) use ($container) { |
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$parameter = $container->getParameter($matches[1]); |
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if (is_array($parameter)) { |
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throw new InvalidArgumentException( |
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'Cannot reference a collection-type parameter with string interpolation.' |
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); |
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} |
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return $parameter; |
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}, |
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$argument |
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); |
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} |
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/** |
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* @param string $argument |
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* @return string |
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*/ |
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private function escape($argument) |
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{ |
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$argument = preg_replace('/^@/', '', $argument); |
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return str_replace('%%', '%', $argument); |
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} |
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} |
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Behat /
Symfony2Extension
