/**
* Sets the bag's checksum hash algorithm.
*
* @param string $hashAlgorithm The bag's checksum hash algorithm. Must be
* either 'sha1' or 'md5'.
*
* @return void
*/
function setHashEncoding($hashAlgorithm)
{
$hashAlgorithm = strtolower($hashAlgorithm);
if ($hashAlgorithm != 'md5' && $hashAlgorithm != 'sha1') {
throw new InvalidArgumentException("Invalid hash algorithim: '{$hashAlgorithm}'.");
}
$this->manifest->setHashEncoding($hashAlgorithm);
if ($this->tagManifest !== null) {
$this->manifest->setHashEncoding($hashAlgorithm);
}
}
