Merge pull request #2 from rezzza/feature/override-debug-event-dispat…

…cher

Add CLI like `app/console debug:event-dispatcher` for our event-dispatcher

README.md

@@ -40,3 +40,6 @@ $changeTracker = new ChangeTracker(
     )
 );
 ```
+
+# EventDispatcher debug
+To debug your own event dispatcher with Symfony, we add a CLI for you. You should register it as a service and use the `--service-id` option.

composer.json

@@ -26,6 +26,7 @@
     "suggest": {
         "doctrine/common": "To use ORMRepository",
         "symfony/event-dispatcher": "To use SymfonyEventBus",
+        "symfony/framework-bundle": "To use EventDispatcherDebugCommand",
         "ext-redis": "To use Redis capabilities"
     }
 }

src/UI/CLI/EventDispatcherDebugCommand.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace Rezzza\DomainEvent\UI\CLI;
+
+use Symfony\Bundle\FrameworkBundle\Command\EventDispatcherDebugCommand as BaseEventDispatcherDebugCommand;
+use Symfony\Bundle\FrameworkBundle\Console\Helper\DescriptorHelper;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Style\SymfonyStyle;
+
+class EventDispatcherDebugCommand extends BaseEventDispatcherDebugCommand
+{
+    protected function configure()
+    {
+        parent::configure();
+        $this->addOption('service-id', null, InputOption::VALUE_REQUIRED, 'The id of the service you want debug', 'event_dispatcher');
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @throws \LogicException
+     */
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $output = new SymfonyStyle($input, $output);
+        $dispatcher = $this->getContainer()->get($input->getOption('service-id'));
+
+        $options = array();
+        if ($event = $input->getArgument('event')) {
+            if (!$dispatcher->hasListeners($event)) {
+                $output->warning(sprintf('The event "%s" does not have any registered listeners.', $event));
+
+                return;
+            }
+
+            $options = array('event' => $event);
+        }
+
+        $helper = new DescriptorHelper();
+        $options['format'] = $input->getOption('format');
+        $options['raw_text'] = $input->getOption('raw');
+        $options['output'] = $output;
+        $helper->describe($output, $dispatcher, $options);
+    }
+}