[GitHub] [flink] zhuzhurk opened a new pull request #9754: [FLINK-14182][core] Make TimeUtils able to parse duration string with plural form labels

[GitBox <gi...@apache.org>]

zhuzhurk opened a new pull request #9754: [FLINK-14182][core] Make TimeUtils able to parse duration string with plural form labels
URL: https://github.com/apache/flink/pull/9754
 
 
   
   ## What is the purpose of the change
   
   
   Scala Duration supports parsing plural form time unit label except for the shortest label of a TimeUnit. Namely:
   { 
     "d day days", 
     "h hour s", 
     "min minute minutes", 
     "s sec secs second seconds", 
     "ms milli millis millisecond milliseconds", 
     "µs micro micros microsecond microseconds", 
     "ns nano nanos nanosecond nanoseconds"
   }
   
   TimeUtils should support them as well.
   
   ## Brief change log
   
     - *Each label now can be marked as singular or plural for a time unit*
   
   ## Verifying this change
   
   This change added tests and can be verified as follows:
     - *Unit tests in TimeUtilsTest*
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): (yes / **no**)
     - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (yes / **no**)
     - The serializers: (yes / **no** / don't know)
     - The runtime per-record code paths (performance sensitive): (yes / **no** / don't know)
     - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / **no** / don't know)
     - The S3 file system connector: (yes / **no** / don't know)
   
   ## Documentation
   
     - Does this pull request introduce a new feature? (yes / **no**)
     - If yes, how is the feature documented? (**not applicable** / docs / JavaDocs / not documented)
   

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