feat Ability to configure resource_class_directories

src/Bridge/Symfony/Bundle/DependencyInjection/ApiPlatformExtension.php

@@ -184,6 +184,12 @@ private function registerMetadataConfiguration(ContainerBuilder $container, arra
 
         list($xmlResources, $yamlResources) = $this->getResourcesToWatch($container, $config['mapping']['paths']);
 
+        if (isset($config['resource_class_directories']) && $config['resource_class_directories']) {
+            $container->setParameter('api_platform.resource_class_directories', array_merge(
+                $config['resource_class_directories'], $container->getParameter('api_platform.resource_class_directories')
+            ));
+        }
+
         $container->getDefinition('api_platform.metadata.extractor.xml')->addArgument($xmlResources);
 
         if (class_exists(Annotation::class)) {

src/Bridge/Symfony/Bundle/DependencyInjection/Configuration.php

@@ -148,6 +148,10 @@ public function getConfigTreeBuilder()
                     ->end()
                 ->end()
 
+                ->arrayNode('resource_class_directories')
+                    ->prototype('scalar')->end()
+                ->end()
+
                 ->arrayNode('http_cache')
                     ->addDefaultsIfNotSet()
                     ->children()

tests/Bridge/Symfony/Bundle/DependencyInjection/ApiPlatformExtensionTest.php

@@ -247,6 +247,28 @@ public function testEnableSecurity()
         $this->extension->load(self::DEFAULT_CONFIG, $containerBuilder);
     }
 
+    public function testAddResourceClassDirectories()
+    {
+        $containerBuilderProphecy = $this->getBaseContainerBuilderProphecy();
+        $containerBuilderProphecy->getParameter('api_platform.resource_class_directories')->shouldBeCalled()->willReturn([]);
+        $i = 0;
+        // it's called once from getResourcesToWatch and then if the configuration exists
+        $containerBuilderProphecy->setParameter('api_platform.resource_class_directories', Argument::that(function ($arg) use ($i) {
+            if (0 === $i++) {
+                return $arg;
+            }
+
+            if (!in_array('foobar', $arg, true)) {
+                throw new \Exception('"foobar" should be in "resource_class_directories"');
+            }
+
+            return $arg;
+        }))->shouldBeCalled();
+        $containerBuilder = $containerBuilderProphecy->reveal();
+
+        $this->extension->load(array_merge_recursive(self::DEFAULT_CONFIG, ['api_platform' => ['resource_class_directories' => ['foobar']]]), $containerBuilder);
+    }
+
     /**
      * @expectedException \ApiPlatform\Core\Exception\RuntimeException
      * @expectedExceptionMessageRegExp /Unsupported mapping type in ".+", supported types are XML & Yaml\./

tests/Bridge/Symfony/Bundle/DependencyInjection/ConfigurationTest.php

@@ -119,6 +119,7 @@ public function testDefaultConfig()
                 'vary' => ['Accept'],
                 'public' => null,
             ],
+            'resource_class_directories' => [],
         ], $config);
     }