--- /dev/null
+<?php
+
+/*
+ * This file is part of the Behat Testwork.
+ * (c) Konstantin Kudryashov <ever.zet@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Behat\Testwork\Call\ServiceContainer;
+
+use Behat\Testwork\ServiceContainer\Extension;
+use Behat\Testwork\ServiceContainer\ExtensionManager;
+use Behat\Testwork\ServiceContainer\ServiceProcessor;
+use Symfony\Component\Config\Definition\Builder\ArrayNodeDefinition;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Definition;
+
+/**
+ * Provides call services for testwork.
+ *
+ * @author Konstantin Kudryashov <ever.zet@gmail.com>
+ */
+final class CallExtension implements Extension
+{
+ /*
+ * Available services
+ */
+ const CALL_CENTER_ID = 'call.center';
+
+ /*
+ * Available extension points
+ */
+ const CALL_FILTER_TAG = 'call.call_filter';
+ const CALL_HANDLER_TAG = 'call.call_handler';
+ const RESULT_FILTER_TAG = 'call.result_filter';
+ const EXCEPTION_HANDLER_TAG = 'call.exception_handler';
+
+ /**
+ * @var ServiceProcessor
+ */
+ private $processor;
+
+ /**
+ * Initializes extension.
+ *
+ * @param null|ServiceProcessor $processor
+ */
+ public function __construct(ServiceProcessor $processor = null)
+ {
+ $this->processor = $processor ? : new ServiceProcessor();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getConfigKey()
+ {
+ return 'calls';
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function initialize(ExtensionManager $extensionManager)
+ {
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function configure(ArrayNodeDefinition $builder)
+ {
+ $builder
+ ->addDefaultsIfNotSet()
+ ->children()
+ ->scalarNode('error_reporting')
+ ->info('Call executor will catch exceptions matching this level')
+ ->defaultValue(E_ALL | E_STRICT)
+ ->end()
+ ->end()
+ ;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function load(ContainerBuilder $container, array $config)
+ {
+ $this->loadCallCenter($container);
+ $this->loadCallHandlers($container, $config['error_reporting']);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function process(ContainerBuilder $container)
+ {
+ $this->processCallFilters($container);
+ $this->processCallHandlers($container);
+ $this->processResultFilters($container);
+ $this->processExceptionHandlers($container);
+ }
+
+ /**
+ * Loads call center service.
+ *
+ * @param ContainerBuilder $container
+ */
+ protected function loadCallCenter(ContainerBuilder $container)
+ {
+ $definition = new Definition('Behat\Testwork\Call\CallCenter');
+ $container->setDefinition(self::CALL_CENTER_ID, $definition);
+ }
+
+ /**
+ * Loads prebuilt call handlers.
+ *
+ * @param ContainerBuilder $container
+ * @param integer $errorReporting
+ */
+ protected function loadCallHandlers(ContainerBuilder $container, $errorReporting)
+ {
+ $definition = new Definition('Behat\Testwork\Call\Handler\RuntimeCallHandler', array($errorReporting));
+ $definition->addTag(self::CALL_HANDLER_TAG, array('priority' => 50));
+ $container->setDefinition(self::CALL_HANDLER_TAG . '.runtime', $definition);
+ }
+
+ /**
+ * Registers all call filters to the CallCenter.
+ *
+ * @param ContainerBuilder $container
+ */
+ protected function processCallFilters(ContainerBuilder $container)
+ {
+ $references = $this->processor->findAndSortTaggedServices($container, CallExtension::CALL_FILTER_TAG);
+ $definition = $container->getDefinition(CallExtension::CALL_CENTER_ID);
+
+ foreach ($references as $reference) {
+ $definition->addMethodCall('registerCallFilter', array($reference));
+ }
+ }
+
+ /**
+ * Registers all call handlers to the CallCenter.
+ *
+ * @param ContainerBuilder $container
+ */
+ protected function processCallHandlers(ContainerBuilder $container)
+ {
+ $references = $this->processor->findAndSortTaggedServices($container, CallExtension::CALL_HANDLER_TAG);
+ $definition = $container->getDefinition(CallExtension::CALL_CENTER_ID);
+
+ foreach ($references as $reference) {
+ $definition->addMethodCall('registerCallHandler', array($reference));
+ }
+ }
+
+ /**
+ * Registers all call result filters to the CallCenter.
+ *
+ * @param ContainerBuilder $container
+ */
+ protected function processResultFilters(ContainerBuilder $container)
+ {
+ $references = $this->processor->findAndSortTaggedServices($container, CallExtension::RESULT_FILTER_TAG);
+ $definition = $container->getDefinition(CallExtension::CALL_CENTER_ID);
+
+ foreach ($references as $reference) {
+ $definition->addMethodCall('registerResultFilter', array($reference));
+ }
+ }
+
+ /**
+ * Registers all exception handlers to the CallCenter.
+ *
+ * @param ContainerBuilder $container
+ */
+ private function processExceptionHandlers(ContainerBuilder $container)
+ {
+ $references = $this->processor->findAndSortTaggedServices($container, CallExtension::EXCEPTION_HANDLER_TAG);
+ $definition = $container->getDefinition(CallExtension::CALL_CENTER_ID);
+
+ foreach ($references as $reference) {
+ $definition->addMethodCall('registerExceptionHandler', array($reference));
+ }
+ }
+}