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https://issues.apache.org/jira/browse/LANG-1373?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16371578#comment-16371578
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Gilles commented on LANG-1373:
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bq. passing N[] as parent paths around through all the children
Can't the list handling be hidden (i.e. not part of the API)?
bq. redo the interface to take Iterable<T> or something and put it back on the
callers.
"put it back"?
I gathered, from Bruno's example, that the tags are used to filter the report.
> Stopwatch based capability for nested, named, timings in a call stack
> ---------------------------------------------------------------------
>
> Key: LANG-1373
> URL: https://issues.apache.org/jira/browse/LANG-1373
> Project: Commons Lang
> Issue Type: New Feature
> Components: lang.time.*
> Reporter: Otto Fowler
> Assignee: Otto Fowler
> Priority: Major
>
> While working on adding some timing functionality to a Metron feature, I came
> across the
> Stopwatch class, but found that it didn’t suite my needs.
> What I wanted to do was to create a timing from a top level function in our
> Stellar dsl, and have have a group of related timings, such that the end
> result was the overall time of the call, and nested timings of other calls
> executed during the dsl execution of that function. These timings would all
> be named, and have a path for identification and include timing the language
> compiler/execution as well as the function execution itself. It would be
> helpful if they were tagged in some way as well, such that the consumer could
> filter during visitation.
> So I have written StackWatch to provide this functionality, and submitted it
> in a Metron PR.
> From the PR description:
> StackWatch
> A set of utility classes under the new package stellar.common.timing have
> been added. These provide the StackWatch functionality.
> StackWatch provides an abstraction over the Apache Commons StopWatch class
> that allows callers to create multiple named and possibly nested timing
> operations.
> <…>
> This class may be more generally useful to this and other projects, but I am
> not sure where it would live since we wouldn’t want it in common.
> StackWatch uses a combination of Deque and a custom Tree implementation to
> create, start and end timing operations.
> A Visitor pattern is also implemented to allow for retrieving the results
> after the completion of the operation.
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