source: simplerunner/src/main/java/geniusweb/simplerunner/NegoRunner.java@ 52

package geniusweb.simplerunner;

import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.logging.Level;

import com.fasterxml.jackson.databind.ObjectMapper;

import geniusweb.protocol.NegoSettings;
import geniusweb.simplerunner.gui.GUI;
import tudelft.utilities.logging.Reporter;

/**
 * A simple tool to run a negotiation stand-alone, without starting the servers.
 * All referred files and classes need to be stored locally (or be in the
 * dependency list if you use maven).
 * <p>
 * <em>IMPORTANT</em> SimpleRunner has a number of restrictions, compared to a
 * run using a runserver and partyserver
 * <ul>
 * <li>With stand-alone runner, your parties are run together in a single
 * classloader. The main implication is that there may arise version conflicts
 * between parties.
 * <li>Stand-alone runner does NOT enforce the time deadline. Parties may
 * continue running indefinitely and thus bog down the JVM and stalling
 * tournaments.
 * </ul>
 */
public class NegoRunner {
        private final static ObjectMapper jackson = new ObjectMapper();

        /**
         * The main runner
         * 
         * @param args should have 0 or 1 argument. If 0 arguments, the {@link GUI}
         *             is started. If one argoment, it should be a filename
         *             containing a settings.json file. That session is then run.
         * @throws IOException if problem occurs
         */
        public static void main(String[] args) throws IOException {
                if (args.length == 0) {
                        GUI.main(args);
                        return;
                }
                if (args.length != 1) {
                        showusage();
                        return;
                }
                String serialized = new String(Files.readAllBytes(Paths.get(args[0])),
                                StandardCharsets.UTF_8);
                NegoSettings settings = jackson.readValue(serialized,
                                NegoSettings.class);

                Runner runner = new Runner(settings, new ClassPathConnectionFactory(),
                                new StdOutReporter(), 0);
                runner.run();
        }

        private static void showusage() {
                System.err.println("GeniusWeb stand-alone runner.");
                System.err.println("first argument should be <settings.json>.");
                System.err.println(
                                "The settings.json file should contain the NegoSettings.");
                System.err.println(
                                "See the settings.json example file and the GeniusWeb wiki pages. ");

        }

}

class StdOutReporter implements Reporter {
        @Override
        public void log(Level level, String msg) {
                if (level == Level.WARNING || level == Level.SEVERE)
                        System.err.println(level + ":" + msg);
                else
                        System.out.println(level + ":" + msg);
        }

        @Override
        public void log(Level arg0, String msg, Throwable arg2) {
                log(arg0, msg);
        }

}