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