resolve subresource class just like the resource class

Author: esserj

src/Metadata/Extractor/XmlExtractor.php

@@ -120,7 +120,7 @@ private function getProperties(\SimpleXMLElement $resource): array
                 'attributes' => $this->getAttributes($property, 'attribute'),
                 'subresource' => $property->subresource ? [
                     'collection' => $this->phpize($property->subresource, 'collection', 'bool'),
-                    'resourceClass' => $this->phpize($property->subresource, 'resourceClass', 'string'),
+                    'resourceClass' => $this->resolve($this->phpize($property->subresource, 'resourceClass', 'string')),
                     'maxDepth' => $this->phpize($property->subresource, 'maxDepth', 'integer'),
                 ] : null,
             ];

src/Metadata/Extractor/YamlExtractor.php

@@ -100,6 +100,9 @@ private function extractProperties(array $resourceYaml, string $resourceName, st
             if (!\is_array($propertyValues)) {
                 throw new InvalidArgumentException(sprintf('"%s" setting is expected to be null or an array, %s given in "%s".', $propertyName, \gettype($propertyValues), $path));
             }
+            if (isset($propertyValues['subresource']['resourceClass'])) {
+                $propertyValues['subresource']['resourceClass'] = $this->resolve($propertyValues['subresource']['resourceClass']);
+            }
 
             $this->resources[$resourceName]['properties'][$propertyName] = [
                 'description' => $this->phpize($propertyValues, 'description', 'string'),