mirror of
https://gitee.com/milvus-io/milvus.git
synced 2024-12-09 15:30:33 +08:00
43 lines
1.1 KiB
Go
43 lines
1.1 KiB
Go
|
package etcdkv
|
||
|
|
||
|
import (
|
||
|
"fmt"
|
||
|
"path"
|
||
|
|
||
|
clientv3 "go.etcd.io/etcd/client/v3"
|
||
|
|
||
|
"github.com/milvus-io/milvus/internal/kv/predicates"
|
||
|
"github.com/milvus-io/milvus/pkg/util/merr"
|
||
|
)
|
||
|
|
||
|
func parsePredicates(rootPath string, preds ...predicates.Predicate) ([]clientv3.Cmp, error) {
|
||
|
if len(preds) == 0 {
|
||
|
return []clientv3.Cmp{}, nil
|
||
|
}
|
||
|
result := make([]clientv3.Cmp, 0, len(preds))
|
||
|
for _, pred := range preds {
|
||
|
switch pred.Target() {
|
||
|
case predicates.PredTargetValue:
|
||
|
pt, err := parsePredicateType(pred.Type())
|
||
|
if err != nil {
|
||
|
return nil, err
|
||
|
}
|
||
|
cmp := clientv3.Compare(clientv3.Value(path.Join(rootPath, pred.Key())), pt, pred.TargetValue())
|
||
|
result = append(result, cmp)
|
||
|
default:
|
||
|
return nil, merr.WrapErrParameterInvalid("valid predicate target", fmt.Sprintf("%d", pred.Target()))
|
||
|
}
|
||
|
}
|
||
|
return result, nil
|
||
|
}
|
||
|
|
||
|
// parsePredicateType parse predicates.PredicateType to clientv3.Result
|
||
|
func parsePredicateType(pt predicates.PredicateType) (string, error) {
|
||
|
switch pt {
|
||
|
case predicates.PredTypeEqual:
|
||
|
return "=", nil
|
||
|
default:
|
||
|
return "", merr.WrapErrParameterInvalid("valid predicate type", fmt.Sprintf("%d", pt))
|
||
|
}
|
||
|
}
|