riteshghorse commented on code in PR #17432:
URL: https://github.com/apache/beam/pull/17432#discussion_r858827902
##########
sdks/go/pkg/beam/core/runtime/exec/sdf_invokers.go:
##########
@@ -351,3 +352,84 @@ func (n *cweInvoker) Reset() {
n.args[i] = nil
}
}
+
+// trInvoker is an invoker for TruncateRestriction.
+type trInvoker struct {
+ fn *funcx.Fn
+ args []interface{}
+ call func(elms *FullValue, rest interface{}) (pair interface{})
+}
+
+var offsetrangeTracker = reflect.TypeOf((*offsetrange.Tracker)(nil)).Elem()
+
+// var growableOffsetRangeTracker =
reflect.TypeOf((*growable_offsetrange.Tracker)(nil))
+
+func DefaultTruncateRestriction(restTracker interface{}) (newRest interface{})
{
+ switch restTracker.(type) {
+ case *offsetrange.Tracker:
+ return
restTracker.(*offsetrange.Tracker).GetRestriction().(offsetrange.Restriction)
// since offsetrange has a bounded restriction
+ default:
+ return nil
+ }
+}
+
+func newTruncateRestrictionInvoker(fn *funcx.Fn) (*trInvoker, error) {
+ n := &trInvoker{
+ fn: fn,
+ args: make([]interface{}, len(fn.Param)),
+ }
+ if err := n.initCallFn(); err != nil {
+ return nil, errors.WithContext(err, "sdf TruncateRestriction
invoker")
+ }
+ return n, nil
+}
+
+func (n *trInvoker) initCallFn() error {
+ // Expects a signature of the form:
+ // (key?, value, restriction) []restriction
+ // TODO(BEAM-9643): Link to full documentation.
+ switch fnT := n.fn.Fn.(type) {
+ case reflectx.Func2x1:
+ n.call = func(elms *FullValue, rest interface{}) interface{} {
+ return fnT.Call2x1(rest, elms.Elm)
Review Comment:
Yeah, I figured it out while implementing.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
