Main init() {
// Create a chart to monitor the infection progress rate
final XYLineChart chart =
new XYLineChart("Infection Rate", 5.0, "Infected Nodes (%)", "time(s)");
chart.setYRange(false, 0, 100);
chart.setSeriesLinesAndShapes("s0", true, true);
Gui.setFrameRectangle("MainFrame", 0, 0, 480, 480);
Gui.setFrameRectangle("Infection Rate", 484, 0, 480, 480);
// Create the simulation nodes
for (int i = 0; i < TOTAL_NODES; i++) new Node();
// Initialize the simulation nodes
for (Node i : NodeDB.nodes()) i.init();
NodeDB.randomNode().infect();
// Sets up a periodic task that, at one second intervals, computes and shows the percentage of
// infected nodes in the system
// Stops the simulation when it detects that every node is infected...
new PeriodicTask(1.0) {
public void run() {
double T = 0, N = 0;
for (Node n : NodeDB.nodes()) {
if (n.infected) T++;
N++;
}
chart.getSeries("s0").add(Simulation.currentTime(), 100.0 * T / N);
if (N == T) stop();
};
};
// From time to time, select a random node to go fail and go offline...
new Task(0) {
public void run() {
NodeDB.randomNode().crash();
reSchedule(0.5 + 0.5 * rg.nextDouble()); // schedules a new execution of this task...
}
};
// From time to time, create a new node. If the rate of births and deaths is the same,
// the size of the system should stay constant on average.
new Task(0) {
public void run() {
new Node().init();
reSchedule(0.5 + 0.5 * rg.nextDouble()); // schedules a new execution of this task...
}
};
super.setSimulationMaxTimeWarp(2.0);
return this;
}
