// Increment a bin, being used as a sequence generator.
func nextSeq(seq string) (int, error) {
keyId := fmt.Sprintf("%s:%s", SEQUENCES, seq)
key, err := as.NewKey(NAMESPACE, SEQUENCES, keyId)
if err != nil {
return 0, err
}
rec, err := db.Operate(
writePolicy,
key,
as.AddOp(as.NewBin("seq", 1)),
as.GetOpForBin("seq"),
)
if err != nil {
return 0, err
}
if seq, exists := rec.Bins["seq"]; !exists || int(seq.(int)) <= 0 {
return 0, fmt.Errorf("sequence not found: %s", seq)
}
return rec.Bins["seq"].(int), nil
}
// NewServiceCodeVersion generates a version number of the code and returns it.
func NewServiceCodeVersion(
as *aerospike.Client, env string, service string) (
newVersion int64, err error) {
key, err := serviceKey(env, service)
if err != nil {
return 0, err
}
bin := aerospike.NewBin("NextVer", 1)
record, err := as.Operate(
nil, key, aerospike.AddOp(bin),
aerospike.GetOpForBin("NextVer"))
if err != nil {
return 0, err
}
return int64(record.Bins["NextVer"].(int)), nil
}