/**
* Factory method
*
* @param var arg either an InputStream, File, or IOElement
* @return self
* @throws lang.IllegalArgumentException
*/
public static function of($arg)
{
if ($arg instanceof InputStream) {
return new self($arg);
} else {
if ($arg instanceof File) {
return create(new self($arg->getInputStream()))->withMediaType(MimeType::getByFileName($arg->getFileName()))->withContentLength($arg->getSize())->withLastModified(new Date($arg->lastModified()));
} else {
if ($arg instanceof IOElement) {
return create(new self($arg->getInputStream()))->withMediaType(MimeType::getByFileName($arg->getURI()))->withContentLength($arg->getSize())->withLastModified($arg->lastModified());
} else {
throw new IllegalArgumentException('Expected either an InputStream, File, or IOElement, have ' . xp::typeOf($arg));
}
}
}
}
