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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-5976) Refactoring duplicate Tokenizer in flink-test
Date Wed, 08 Mar 2017 13:20:38 GMT

    [ https://issues.apache.org/jira/browse/FLINK-5976?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15901228#comment-15901228
] 

ASF GitHub Bot commented on FLINK-5976:
---------------------------------------

Github user StephanEwen commented on the issue:

    https://github.com/apache/flink/pull/3485
  
    Would be nice to follow up here and collect also functions like "identity mapper" or so
in that package.


> Refactoring duplicate Tokenizer in flink-test
> ---------------------------------------------
>
>                 Key: FLINK-5976
>                 URL: https://issues.apache.org/jira/browse/FLINK-5976
>             Project: Flink
>          Issue Type: Improvement
>          Components: Examples
>    Affects Versions: 1.2.0
>            Reporter: liuyuzhong7
>            Priority: Minor
>              Labels: test
>             Fix For: 1.2.0
>
>
> There are some duplicate code like this in flink-test, I think refactor this will be
better. 
> ```
> public final class Tokenizer implements FlatMapFunction<String, Tuple2<String,
Integer>> {
> 	@Override
> 	public void flatMap(String value, Collector<Tuple2<String, Integer>> out)
{
> 		// normalize and split the line
> 		String[] tokens = value.toLowerCase().split("\\W+");
> 		// emit the pairs
> 		for (String token : tokens) {
> 			if (token.length() > 0) {
> 				out.collect(new Tuple2<String, Integer>(token, 1));
> 			}
> 		}
> 	}
> }
> ```



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