// Parse returns the namespace, datatore.Key, sequence and queue name from a task request
func (l *Locker) Parse(c context.Context, r *http.Request) (*datastore.Key, int, error) {
key := new(datastore.Key)
if err := key.UnmarshalJSON([]byte(r.Header.Get("X-Lock-Key"))); err != nil {
return nil, 0, err
}
seq, err := strconv.Atoi(r.Header.Get("X-Lock-Seq"))
if err != nil {
return nil, 0, err
}
return key, seq, nil
}