34 lines
632 B
Go
34 lines
632 B
Go
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package predicate
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import (
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"github.com/influxdata/influxdb"
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"github.com/influxdata/influxdb/storage/reads/datatypes"
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"github.com/influxdata/influxdb/tsdb/tsm1"
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)
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// Node is a predicate node.
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type Node interface {
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ToDataType() (*datatypes.Node, error)
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}
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// New predicate from a node
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func New(n Node) (influxdb.Predicate, error) {
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if n == nil {
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return nil, nil
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}
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dt, err := n.ToDataType()
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if err != nil {
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return nil, err
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}
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pred, err := tsm1.NewProtobufPredicate(&datatypes.Predicate{
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Root: dt,
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})
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if err != nil {
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return nil, &influxdb.Error{
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Code: influxdb.EInvalid,
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Err: err,
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}
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}
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return pred, nil
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}
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