public function resolveRef($ref)
{
$jsonPointer = new JsonPointer($ref);
$refSchema = $this->getSchema($jsonPointer->getFilename());
foreach ($jsonPointer->getPropertyPaths() as $path) {
if (is_object($refSchema) && property_exists($refSchema, $path)) {
$refSchema = $this->resolveRefSchema($refSchema->{$path});
} elseif (is_array($refSchema) && array_key_exists($path, $refSchema)) {
$refSchema = $this->resolveRefSchema($refSchema[$path]);
} else {
throw new UnresolvableJsonPointerException(sprintf('File: %s is found, but could not resolve fragment: %s', $jsonPointer->getFilename(), $jsonPointer->getPropertyPathAsString()));
}
}
return $refSchema;
}
/**
* @param JsonPointer $pointer
* @return string property path
*/
protected function convertJsonPointerIntoPropertyPath(JsonPointer $pointer)
{
$result = array_map(function ($path) {
return sprintf(is_numeric($path) ? '[%d]' : '.%s', $path);
}, $pointer->getPropertyPaths());
return trim(implode('', $result), '.');
}
/**
* @param JsonPointer $jsonPointer
* @param object $refSchema
* @throws UnresolvableJsonPointerException when json schema file is found but reference can not be resolved
* @return object
*/
private function getRefSchema(JsonPointer $jsonPointer, $refSchema)
{
foreach ($jsonPointer->getPropertyPaths() as $path) {
if (is_object($refSchema) && property_exists($refSchema, $path)) {
$refSchema = $refSchema->{$path};
} elseif (is_array($refSchema) && array_key_exists($path, $refSchema)) {
$refSchema = $refSchema[$path];
} else {
throw new UnresolvableJsonPointerException(sprintf('File: %s is found, but could not resolve fragment: %s', $jsonPointer->getFilename(), $jsonPointer->getPropertyPathAsString()));
}
}
return $refSchema;
}