/**
* @param UriInterface $referenceUri
* @param Value\ReferenceValue $reference
*
* @return Value\ValueInterface
* @throws Exception\UndefinedReferenceException
*/
protected function resolveExternal(UriInterface $referenceUri, Value\ReferenceValue $reference)
{
try {
$value = $this->reader()->read($this->uriFactory()->create($referenceUri->toString()), $reference->mimeType());
} catch (ReadException $e) {
throw new Exception\UndefinedReferenceException($reference, $this->currentBaseUri(), $e);
}
$this->pushScopeMap($this->scopeMapFactory()->create($referenceUri, $value));
$value = $value->accept($this);
$this->popScopeMap();
$referencePointer = $this->pointerFactory()->createFromUri($referenceUri);
if ($referencePointer->hasAtoms()) {
$value = $this->pointerResolver()->resolve($referencePointer, $value);
if (null === $value) {
throw new Exception\UndefinedReferenceException($reference, $this->currentBaseUri());
}
}
return $value;
}
