// QueryDivisionByDivisionID querys Division by taxid
func QueryDivisionByDivisionID(db *bolt.DB, bucket string, ids []string) ([]nodes.Division, error) {
for _, id := range ids {
if !reDigitals.MatchString(id) {
return []nodes.Division{}, fmt.Errorf("non-digital division given: %s", id)
}
}
divisions := make([]nodes.Division, len(ids))
if len(ids) == 0 {
return divisions, nil
}
err := db.View(func(tx *bolt.Tx) error {
b := tx.Bucket([]byte(bucket))
if b == nil {
return fmt.Errorf("database not exists: %s", bucket)
}
for i, id := range ids {
s := string(b.Get([]byte(id)))
if s == "" {
divisions[i] = nodes.Division{}
continue
}
division, err := nodes.DivisionFromJSON(s)
if err != nil {
return errors.New("failed to parse division record from database")
}
divisions[i] = division
}
return nil
})
return divisions, err
}
// LoadAllDivisions loads all divisions into memory
func LoadAllDivisions(db *bolt.DB, bucket string) (map[string]nodes.Division, error) {
divisions := make(map[string]nodes.Division)
ch := make(chan string, runtime.NumCPU())
chDone := make(chan int)
go func() {
for s := range ch {
division, err := nodes.DivisionFromJSON(s)
checkError(err)
divisions[division.DivisionID] = division
}
chDone <- 1
}()
err := db.View(func(tx *bolt.Tx) error {
b := tx.Bucket([]byte(bucket))
if b == nil {
return fmt.Errorf("database not exists: %s", bucket)
}
b.ForEach(func(k, v []byte) error {
ch <- string(v)
return nil
})
return nil
})
close(ch)
<-chDone
return divisions, err
}