[
https://issues.apache.org/jira/browse/BEAM-3301?focusedWorklogId=402327&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-402327
]
ASF GitHub Bot logged work on BEAM-3301:
----------------------------------------
Author: ASF GitHub Bot
Created on: 12/Mar/20 17:17
Start Date: 12/Mar/20 17:17
Worklog Time Spent: 10m
Work Description: lukecwik commented on pull request #10991: [BEAM-3301]
Refactor DoFn validation & allow specifying main inputs.
URL: https://github.com/apache/beam/pull/10991#discussion_r391766344
##########
File path: sdks/go/pkg/beam/core/graph/fn.go
##########
@@ -239,52 +279,50 @@ func AsDoFn(fn *Fn) (*DoFn, error) {
return nil, addContext(err, fn)
}
- // Start validating DoFn. First, check that ProcessElement has a main
input.
+ // Validate ProcessElement has correct number of main inputs (as
indicated by
+ // numMainIn), and that main inputs are before side inputs.
processFn := fn.methods[processElementName]
- pos, num, ok := processFn.Inputs()
- if ok {
- first := processFn.Param[pos].Kind
- if first != funcx.FnValue {
- err := errors.New("side input parameters must follow
main input parameter")
- err = errors.SetTopLevelMsgf(err,
- "Method %v of DoFns should always have a main
input before side inputs, "+
- "but it has side inputs (as Iters or
ReIters) first in DoFn %v.",
- processElementName, fn.Name())
- err = errors.WithContextf(err, "method %v",
processElementName)
- return nil, addContext(err, fn)
- }
+ if err := validateMainInputs(fn, processFn, processElementName,
numMainIn); err != nil {
+ return nil, addContext(err, fn)
+ }
+
+ // If numMainIn is unknown, we can try inferring it from the second
input in ProcessElement.
+ // If there is none, or it's not a FnValue type, then we can safely
infer that there's only
+ // one main input.
+ pos, num, _ := processFn.Inputs()
+ if numMainIn == MainUnknown && (num == 1 || processFn.Param[pos+1].Kind
!= funcx.FnValue) {
+ numMainIn = MainSingle
}
// If the ProcessElement function includes side inputs or emit
functions those must also be
Review comment:
Not related to this PR but why?
----------------------------------------------------------------
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.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
Issue Time Tracking
-------------------
Worklog Id: (was: 402327)
Time Spent: 4h 20m (was: 4h 10m)
> Go SplittableDoFn support
> -------------------------
>
> Key: BEAM-3301
> URL: https://issues.apache.org/jira/browse/BEAM-3301
> Project: Beam
> Issue Type: Improvement
> Components: sdk-go
> Reporter: Henning Rohde
> Assignee: Daniel Oliveira
> Priority: Major
> Time Spent: 4h 20m
> Remaining Estimate: 0h
>
> SDFs will be the only way to add streaming and liquid sharded IO for Go.
> Design doc: https://s.apache.org/splittable-do-fn
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
