Main.java

package se.sics.gvod.simulator.gradient;

import se.sics.gvod.config.CroupierCompositeConfiguration;
import se.sics.gvod.simulator.croupier.main.*;
import se.sics.gvod.config.VodConfig;
import se.sics.gvod.simulator.croupier.scenarios.*;

public class Main {

    public static int SEED;
    public static int PARENT_SIZE = 4;
    public static int PARENT_UPDATE_ROUND_TIME = 2000;

    public static void main(String[] args) throws Throwable {
        if (args.length < 8) {
            System.err.println("");
            System.err.println("usage: <prog> seed exp numPub numPriv local-history-size neighbour-history-size expLength nodeSelection");
            System.err.println("");

            System.exit(1);
        }
        SEED = Integer.parseInt(args[0]);

        VodConfig.init(new String[]{"-seed", args[0]});


        Scenario scenario = null;
        String scenarioName = args[1];
        int numPub = (int) Double.parseDouble(args[2]);
        int numPriv = (int) Double.parseDouble(args[3]);
        int localHistorySize = (int) Double.parseDouble(args[4]);
        int neighbourHistorySize = (int) Double.parseDouble(args[5]);
        int expLength = (int) Integer.parseInt(args[6]);
        String nodeSelection = args[7];
    

        Scenario.FIRST_PRIVATE = numPriv;
        Scenario.SECOND_PUBLIC = numPub;
        Scenario.COLLECT_RESULTS = expLength;



        CroupierCompositeConfiguration configuration = 
                new CroupierCompositeConfiguration(
                PARENT_SIZE, 
                PARENT_UPDATE_ROUND_TIME,
                localHistorySize, neighbourHistorySize, nodeSelection);
        configuration.store();

        if (scenarioName.equalsIgnoreCase("join")) {
            scenario = new ScenarioJoin();
        } else if (scenarioName.equalsIgnoreCase("churn")) {
            scenario = new ScenarioLowChurn();
        } else if (scenarioName.equalsIgnoreCase("high-churn")) {
            scenario = new ScenarioHighChurn();
        } else if (scenarioName.equalsIgnoreCase("failure")) {
            scenario = new ScenarioFailure();
        }

        if (scenario == null) {
            System.err.println("");
            System.err.println("invalid scenario name.");
            System.err.println("the scenarios: join-only, low-churn, high-churn, and failure.");
            System.err.println("");

            System.exit(1);
        }

        scenario.setSeed(System.currentTimeMillis());
        scenario.simulateGradient();
    }
}