Example usage for org.apache.commons.cli MissingArgumentException getOption

Introduction

In this page you can find the example usage for org.apache.commons.cli MissingArgumentException getOption.

Prototype

public Option getOption()

Source Link

Document

Return the option requiring an argument that wasn't provided on the command line.

Usage

From source file:org.eclipse.jetty.Starter.java

/**
 * Starts the jetty server using the war file in which this class is embedded
 *//*from w  w w . ja  va  2s .  c o m*/
public static void main(String[] args) {
    Options options = buildOptions();
    CommandLineParser parser = new GnuParser();
    try {
        CommandLine cmd = parser.parse(options, args);
        String hostname = cmd.getOptionValue('h', "localhost");
        int port = parsePort(cmd);
        if (cmd.hasOption('l')) {
            String loggingFile = cmd.getOptionValue('l');
            if (!new File(loggingFile).exists()) {
                System.out.println(
                        "The provided logging configuration file " + loggingFile + " does not exists!");
                printHelp(options);
                return;
            }
            System.setProperty("log4j.configuration", "file:" + loggingFile);
        }
        if (cmd.hasOption('c')) {
            String propertiesFile = cmd.getOptionValue('c');
            if (!new File(propertiesFile).exists()) {
                System.out.println("The provided properties file " + propertiesFile + " does not exists!");
                printHelp(options);
                return;
            }
            System.setProperty("configFile", propertiesFile);
        }

        startServer(hostname, port);

    } catch (MissingArgumentException mae) {
        System.out.println("The option " + mae.getOption().getOpt() + " is missing required argument!");
        printHelp(options);
    } catch (UnrecognizedOptionException uoe) {
        System.out.println("Usage of unsupported option " + uoe.getOption() + "!");
        printHelp(options);
    } catch (ParseException pe) {
        System.out.println("Wrong command line arguments provided!");
        printHelp(options);
    }
}