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From rmetzger <...@git.apache.org>
Subject [GitHub] flink pull request: [FLINK-2017] Add predefined required parameter...
Date Sun, 22 Nov 2015 14:58:51 GMT
Github user rmetzger commented on the pull request:

    I've tested the PR again. 
    I found a minor issue with the alternative arguments.
    input: `--input abc --p 12`,
    RequiredParameters rq = new RequiredParameters();
    		rq.add(new Option("parallelism").alt("p").defaultValue("1").type(OptionType.INTEGER));
    		ParameterTool pt = ParameterTool.fromArgs(args);
    		String in = pt.get("input");
    		System.out.println("In = "+in + " parallelism = "+pt.getInt("parallelism") + " p="+pt.getInt("p"));
    Exception in thread "main" java.lang.RuntimeException: No data for required key 'p'
    	at org.apache.flink.api.java.utils.ParameterTool.getRequired(ParameterTool.java:236)
    	at org.apache.flink.api.java.utils.ParameterTool.getInt(ParameterTool.java:272)
    	at org.apache.flink.examples.java.wordcount.WordCount.main(WordCount.java:69)
    I think we need to set the (default) value for the long and the short variant.

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