PoC: Implemented Repository to REST Exception converters

src/bundle/EventListener/ResponseListener.php

@@ -6,6 +6,8 @@
  */
 namespace Ibexa\Bundle\Rest\EventListener;
 
+use Ibexa\Contracts\Core\Repository\Exceptions\Exception as RepositoryException;
+use Ibexa\Rest\Exception\Converter\RepositoryExceptionConverterInterface;
 use Ibexa\Rest\Server\View\AcceptHeaderVisitorDispatcher;
 use Psr\Log\LoggerAwareInterface;
 use Psr\Log\LoggerAwareTrait;
@@ -31,12 +33,17 @@ class ResponseListener implements EventSubscriberInterface, LoggerAwareInterface
      */
     private $viewDispatcher;
 
+    private RepositoryExceptionConverterInterface $repositoryExceptionConverter;
+
     /**
      * @param $viewDispatcher AcceptHeaderVisitorDispatcher
      */
-    public function __construct(AcceptHeaderVisitorDispatcher $viewDispatcher)
-    {
+    public function __construct(
+        AcceptHeaderVisitorDispatcher $viewDispatcher,
+        RepositoryExceptionConverterInterface $repositoryExceptionConverter
+    ) {
         $this->viewDispatcher = $viewDispatcher;
+        $this->repositoryExceptionConverter = $repositoryExceptionConverter;
     }
 
     /**
@@ -74,7 +81,7 @@ public function onKernelResultView(ViewEvent $event)
      *
      * @throws \Exception
      */
-    public function onKernelExceptionView(ExceptionEvent $event)
+    public function onKernelExceptionView(ExceptionEvent $event): void
     {
         if (!$event->getRequest()->attributes->get('is_rest_request')) {
             return;
@@ -86,7 +93,9 @@ public function onKernelExceptionView(ExceptionEvent $event)
         $event->setResponse(
             $this->viewDispatcher->dispatch(
                 $event->getRequest(),
-                $exception
+                $exception instanceof RepositoryException
+                    ? $this->repositoryExceptionConverter->convert($exception)
+                    : $exception
             )
         );
     }

src/bundle/Resources/config/exception/converters.yaml

@@ -0,0 +1,11 @@
+services:
+    _defaults:
+        autowire: true
+        autoconfigure: true
+        public: false
+
+    _instanceof:
+        Ibexa\Rest\Exception\Converter\RepositoryExceptionConverterInterface:
+            tags: [ ibexa.rest.repository_exception.converter ]
+
+    Ibexa\Rest\Exception\Converter\ContentFieldValidationExceptionConverter: ~

src/bundle/Resources/config/services.yml

@@ -1,3 +1,6 @@
+imports:
+    - { resource: exception/converters.yaml }
+
 parameters:
     ibexa.rest.output.visitor.json.regexps:
         - '(^application/vnd\.ibexa\.api\.[A-Za-z]+\+json$)'
@@ -199,6 +202,7 @@ services:
     Ibexa\Bundle\Rest\EventListener\ResponseListener:
         arguments:
             - '@Ibexa\Rest\Server\View\AcceptHeaderVisitorDispatcher'
+            - '@Ibexa\Rest\Exception\Converter\RepositoryExceptionConverterInterface'
         calls:
             - ['setLogger', ['@?logger']]
         tags:
@@ -369,3 +373,10 @@ services:
         parent: hautelook.router.template
         calls:
             - [ setOption, [ strict_requirements, ~ ] ]
+
+    Ibexa\Rest\Exception\Converter\AggregateRepositoryExceptionConverter:
+        arguments:
+            $converters: !tagged_iterator ibexa.rest.repository_exception.converter
+
+    Ibexa\Rest\Exception\Converter\RepositoryExceptionConverterInterface:
+        alias: Ibexa\Rest\Exception\Converter\AggregateRepositoryExceptionConverter

src/lib/Exception/Converter/AggregateRepositoryExceptionConverter.php

@@ -0,0 +1,45 @@
+<?php
+
+/**
+ * @copyright Copyright (C) Ibexa AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace Ibexa\Rest\Exception\Converter;
+
+use Ibexa\Contracts\Core\Repository\Exceptions\Exception as RepositoryException;
+use Ibexa\Rest\Server\Output\ValueObjectVisitor\Exception;
+use Throwable;
+
+/**
+ * @internal
+ */
+final class AggregateRepositoryExceptionConverter implements RepositoryExceptionConverterInterface
+{
+    /** @var iterable<RepositoryExceptionConverterInterface> */
+    private iterable $converters;
+
+    public function __construct(iterable $converters)
+    {
+        $this->converters = $converters;
+    }
+
+    public function convert(RepositoryException $exception): Throwable
+    {
+        foreach ($this->converters as $converter) {
+            if (!$converter->supports($exception)) {
+                continue;
+            }
+
+            return $converter->convert($exception);
+        }
+
+        return $exception;
+    }
+
+    public function supports(RepositoryException $exception): bool
+    {
+        return true;
+    }
+}

src/lib/Exception/Converter/ContentFieldValidationExceptionConverter.php

@@ -0,0 +1,30 @@
+<?php
+
+/**
+ * @copyright Copyright (C) Ibexa AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace Ibexa\Rest\Exception\Converter;
+
+use Ibexa\Contracts\Core\Repository\Exceptions\ContentFieldValidationException as APIContentFieldValidationException;
+use Ibexa\Contracts\Core\Repository\Exceptions\Exception as RepositoryException;
+use Ibexa\Rest\Server\Exceptions\ContentFieldValidationException;
+use Throwable;
+
+final class ContentFieldValidationExceptionConverter implements RepositoryExceptionConverterInterface
+{
+    /**
+     * @param \Ibexa\Contracts\Core\Repository\Exceptions\ContentFieldValidationException $exception
+     */
+    public function convert(RepositoryException $exception): Throwable
+    {
+        return new ContentFieldValidationException($exception);
+    }
+
+    public function supports(RepositoryException $exception): bool
+    {
+        return $exception instanceof APIContentFieldValidationException;
+    }
+}

src/lib/Exception/Converter/RepositoryExceptionConverterInterface.php

@@ -0,0 +1,24 @@
+<?php
+
+/**
+ * @copyright Copyright (C) Ibexa AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace Ibexa\Rest\Exception\Converter;
+
+use Ibexa\Contracts\Core\Repository\Exceptions\Exception as RepositoryException;
+use Throwable;
+
+/**
+ * Convert Repository exceptions to their corresponding REST ValueObjectVisitor instances.
+ *
+ * @internal
+ */
+interface RepositoryExceptionConverterInterface
+{
+    public function convert(RepositoryException $exception): Throwable;
+
+    public function supports(RepositoryException $exception): bool;
+}