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pass.go
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pass.go
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package debug
import (
"fmt"
"github.com/influxdata/flux"
"github.com/influxdata/flux/execute"
"github.com/influxdata/flux/plan"
"github.com/influxdata/flux/runtime"
)
const PassKind = "internal/debug.pass"
type PassOpSpec struct{}
func init() {
passSignature := runtime.MustLookupBuiltinType("internal/debug", "pass")
runtime.RegisterPackageValue("internal/debug", "pass", flux.MustValue(flux.FunctionValue(PassKind, createPassOpSpec, passSignature)))
flux.RegisterOpSpec(PassKind, newPassOp)
plan.RegisterProcedureSpec(PassKind, newPassProcedure, PassKind)
execute.RegisterTransformation(PassKind, createPassTransformation)
}
func createPassOpSpec(args flux.Arguments, a *flux.Administration) (flux.OperationSpec, error) {
if err := a.AddParentFromArgs(args); err != nil {
return nil, err
}
return new(PassOpSpec), nil
}
func newPassOp() flux.OperationSpec {
return new(PassOpSpec)
}
func (s *PassOpSpec) Kind() flux.OperationKind {
return PassKind
}
type PassProcedureSpec struct {
plan.DefaultCost
}
func newPassProcedure(qs flux.OperationSpec, pa plan.Administration) (plan.ProcedureSpec, error) {
_, ok := qs.(*PassOpSpec)
if !ok {
return nil, fmt.Errorf("invalid spec type %T", qs)
}
return new(PassProcedureSpec), nil
}
func (s *PassProcedureSpec) Kind() plan.ProcedureKind {
return PassKind
}
func (s *PassProcedureSpec) Copy() plan.ProcedureSpec {
return new(PassProcedureSpec)
}
// TriggerSpec implements plan.TriggerAwareProcedureSpec
func (s *PassProcedureSpec) TriggerSpec() plan.TriggerSpec {
return plan.NarrowTransformationTriggerSpec{}
}
func createPassTransformation(id execute.DatasetID, mode execute.AccumulationMode, spec plan.ProcedureSpec, a execute.Administration) (execute.Transformation, execute.Dataset, error) {
s, ok := spec.(*PassProcedureSpec)
if !ok {
return nil, nil, fmt.Errorf("invalid spec type %T", spec)
}
t, d := NewPassTransformation(id, s)
return t, d, nil
}
type passTransformation struct {
execute.ExecutionNode
d *execute.PassthroughDataset
}
func NewPassTransformation(id execute.DatasetID, spec *PassProcedureSpec) (execute.Transformation, execute.Dataset) {
t := &passTransformation{
d: execute.NewPassthroughDataset(id),
}
return t, t.d
}
func (t *passTransformation) RetractTable(id execute.DatasetID, key flux.GroupKey) error {
return t.d.RetractTable(key)
}
func (t *passTransformation) Process(id execute.DatasetID, tbl flux.Table) error {
return t.d.Process(tbl)
}
func (t *passTransformation) UpdateWatermark(id execute.DatasetID, mark execute.Time) error {
return t.d.UpdateWatermark(mark)
}
func (t *passTransformation) UpdateProcessingTime(id execute.DatasetID, pt execute.Time) error {
return t.d.UpdateProcessingTime(pt)
}
func (t *passTransformation) Finish(id execute.DatasetID, err error) {
t.d.Finish(err)
}