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https://issues.apache.org/jira/browse/QUARKS-195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15319075#comment-15319075
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ASF GitHub Bot commented on QUARKS-195:
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GitHub user dlaboss opened a pull request:
https://github.com/apache/incubator-quarks/pull/130
[QUARKS-195] Metrics.counter needs TStream.peek(oplet)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/dlaboss/incubator-quarks
quarks-195-metrics-peek
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-quarks/pull/130.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #130
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commit 1824df8d362b7ff8d486e8784e235ea98379c054
Author: Dale LaBossiere <[email protected]>
Date: 2016-06-07T18:29:48Z
[QUARKS-195] Metrics.counter needs TStream.peek(oplet)
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> Metrics.{counter,rateMeter}() shouldn't use TStream.pipe()
> ----------------------------------------------------------
>
> Key: QUARKS-195
> URL: https://issues.apache.org/jira/browse/QUARKS-195
> Project: Quarks
> Issue Type: Bug
> Components: API
> Reporter: Dale LaBossiere
> Assignee: Dale LaBossiere
> Priority: Minor
>
> Add `TStream.peek(Peek<T>)` and change `Metrics.counter(TStream)` and
> `Metrics.rateMeter(TStream)` to use it instead of `pipe()`.
> Using pipe() isn't appropriate as these are Peek ops and it's partially
> responsible for the effect reported in QUARKS-189. Changing to peek() will
> eliminate one of the two extra injected CounterOp and will eliminate the
> single extra StreamScope.
> The growing number of "oplet" based analogs to the "function" based methods
> makes me wonder if the oplet ones should be broken out into another interface
> that TStream implements (`OpletTStream`?). It would contain the current
> `pipe(Pipe)`, `fanin(FanIn,List)`, `sink(Sink)`, and the new `peek(Peek)`,
> and any others that may be needed in the future - e.g., a `split(Split)`
> and/or one that can handle multiple iports and oports.
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