Xzajo's Weblog

Wednesday September 20, 2006

Command Line Parsing API in NetBeans Platform

Jaroslav Tulach integrated Command Line Parsing API to NetBeans platform this week. The API was already tested in DVB Central project.

I wrote simple OptionProcessor in few minutes:

import java.util.Collections;
import java.util.Map;
import java.util.Set;
import org.netbeans.api.sendopts.CommandException;
import org.netbeans.spi.sendopts.Env;
import org.netbeans.spi.sendopts.Option;
import org.netbeans.spi.sendopts.OptionProcessor;
import org.openide.DialogDisplayer;
import org.openide.NotifyDescriptor;

public class MyOptions  extends OptionProcessor {
    private static Option message = Option.requiredArgument(Option.NO_SHORT_NAME, "message");
    
    public Set getOptions() {
      return Collections.singleton(
        message
      );
    }
    
    public void process(Env env, Map values) throws CommandException {
        String args[] = values.get(message);
        if (args.length > 0) {
            DialogDisplayer.getDefault().notify(new NotifyDescriptor.Message(args[0]));
        }
    }    
}

The MyOptions processor is register in META-INF/sevices. The registration can by done by META-INF/services browser. The MyOptions provider display first parameter of -message parameter in message dialog box. For Example

./netbeans --message Hello