de.stz.bt.nanopubsub.StandaloneBroker.java Source code

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Here is the source code for de.stz.bt.nanopubsub.StandaloneBroker.java

Source

/*
 *   nanoPubSub - embedded Publish Subscribe Messaging
 *   (c) 2008 STZ Building Technology
 * 
 *   nanoPubSub is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; version 2 of the License.
 * 
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 */
package de.stz.bt.nanopubsub;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.OptionBuilder;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.apache.commons.cli.Parser;
import org.apache.commons.cli.PosixParser;
import org.apache.log4j.BasicConfigurator;

public class StandaloneBroker {

    private NanoBroker broker = null;

    /**
     * Main Method for running the standalone Broker
     * 
     * @param args
     * @author jseitter
     */
    public static void main(String[] args) {

        Options options = new Options();

        options.addOption(
                OptionBuilder.hasArg(true).withArgName("port").withDescription("broker port number").create('p'));

        Parser parser = new PosixParser();
        CommandLine cmdLine = null;
        try {
            cmdLine = parser.parse(options, args);
        } catch (ParseException e) {
            printHelp(options);
        }

        if (cmdLine == null)
            printHelp(options);

        new StandaloneBroker(cmdLine);

    }

    public StandaloneBroker(CommandLine cmdLine) {

        BasicConfigurator.configure();

        if (cmdLine.hasOption('p')) {
            broker = new NanoBroker(Integer.parseInt(cmdLine.getOptionValue('p')));
        } else {
            broker = new NanoBroker();
        }

    }

    private static void printHelp(Options options) {
        HelpFormatter hf = new HelpFormatter();
        System.out.println("nanoPubSub - embedded publish subscribe messaging");
        hf.printHelp("nanobroker", options, true);
        System.exit(0);
    }

}