Using usage() after parsing my parameters.

[Szymon Tosik]

Hey I'm wondering how could I use usage() method after probably all constructors which supported that have been deprecated. I'm doing as follows :

public class App {


  @Parameter
  private List<String> parameters = new ArrayList<>();


  @Parameter(names = {"-log", "-verbose"}, description = "Level of verbosity")
  private Integer verbose = 1;


  @Parameter(names = {"-t", "-type"}, description = "Type of file (file = f), (directory = d)")
  private String type;


  @Parameter(names = {"-e", "-ext"}, description = "Extension of files to be filtered")
  private String extension;


  @Parameter(names = "-wc", description = "Processor to be used during processing results")
  private String processor;
 
  @Parameter(names = "--help", help = true)
  private boolean help = false;


  public static void main(String[] args) throws FileNotFoundException, URISyntaxException {


    App main = new App();
    JCommander.newBuilder()
              .addObject(main)
              .build()
              .parse(args);
   
    if(main.help) {
    // display usage  
    }
 }
}

Hopefully there is some efficient way after parsing parameters to do so. Thanks for any help as I didn't find how to do so in documentation.

[Cédric Beust ♔]

How about

    JCommander jc = JCommander.newBuilder()
              .addObject(main)
              .build();

    jc.parse(args);

    if(main.help) {
      jc.usage();
    }

​

-- 

Cédric

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