/**
* Parses an attribute.
*
* @param ResourceInterface $resource
* @param AttributeMetadataInterface $attributeMetadata
* @param string $io
* @param Type|null $type
*
* @return array
*/
private function parseAttribute(ResourceInterface $resource, AttributeMetadataInterface $attributeMetadata, $io, Type $type = null)
{
$data = array('dataType' => null, 'required' => $attributeMetadata->isRequired(), 'description' => $attributeMetadata->getDescription(), 'readonly' => !$attributeMetadata->isWritable());
if (null == $type) {
if (!isset($attributeMetadata->getTypes()[0])) {
// Default to string
$data['dataType'] = DataTypes::STRING;
return $data;
}
// Use the first type found as primary
$type = $attributeMetadata->getTypes()[0];
}
if ($type->isCollection()) {
$data['actualType'] = DataTypes::COLLECTION;
if ($collectionType = $type->getCollectionType()) {
$subAttribute = $this->parseAttribute($resource, $attributeMetadata, $io, $collectionType);
if (self::IRI === $subAttribute['dataType']) {
$data['dataType'] = 'array of IRIs';
$data['subType'] = DataTypes::STRING;
return $data;
}
$data['subType'] = $subAttribute['subType'];
$data['children'] = $subAttribute['children'];
}
return $data;
}
$phpType = $type->getType();
if ('object' === $phpType) {
$class = $type->getClass();
if ('DateTime' === $class) {
$data['dataType'] = DataTypes::DATETIME;
$data['format'] = sprintf('{DateTime %s}', \DateTime::ATOM);
return $data;
}
if (self::OUT_PREFIX === $io && $attributeMetadata->isNormalizationLink() || self::IN_PREFIX === $io && $attributeMetadata->isDenormalizationLink()) {
$data['dataType'] = self::IRI;
$data['actualType'] = DataTypes::STRING;
return $data;
}
$data['actualType'] = DataTypes::MODEL;
$data['subType'] = $class;
$data['children'] = $resource->getEntityClass() === $class ? [] : $this->parseClass($resource, $class, $io);
return $data;
}
$data['dataType'] = isset(self::$typeMap[$type->getType()]) ? self::$typeMap[$type->getType()] : DataTypes::STRING;
return $data;
}
