public class IotFogApplication
{

static List fogDevices = new ArrayList();
static List sensors = new ArrayList();
static List actuators = new ArrayList();
static boolean CLOUD = false;
static int numOfDepts = 4;
static int numOfMobilesPerDept = 6;
.
.

public static void main(String[] args) {

try {
Log.disable();
int num_user = 1;
Calendar calendar = Calendar.getInstance();
boolean trace_flag = false;

CloudSim.init(num_user, calendar, trace_flag);

String appId = “IoTFog_Apps”;

FogBroker broker = new FogBroker(“broker”);

Application application = createApplication(appId, broker.getId());
application.setUserId(broker.getId());

createFogDevices(broker.getId(), appId);
.
.
.
}

private static void createFogDevices(int userId, String appId)
{
FogDevice cloud = createFogDevice(“cloud”, 44800, 40000, 100, 10000, 0, 0.01, 16 * 103, 16 * 83.25);
cloud.setParentId(-1);
FogDevice proxy = createFogDevice(“proxy-server”, 2800, 4000, 10000, 10000, 1, 0.0, 107.339, 83.4333);
proxy.setParentId(cloud.getId());
proxy.setUplinkLatency(100);
fogDevices.add(cloud);
fogDevices.add(proxy);

for (int i = 0; i < numOfDepts; i++) {
addGw(i + “”, userId, appId, proxy.getId());
}

}

/* to create a gateways */
private static FogDevice addGw(String id, int userId, String appId, int parentId)
{
FogDevice dept = createFogDevice(“d-” + id, 2800, 4000, 10000, 10000, 1, 0.0, 107.339, 83.4333);
fogDevices.add(dept);
dept.setParentId(parentId);
dept.setUplinkLatency(4);

for (int i = 0; i < numOfMobilesPerDept; i++)
{
String mobileId = id + “-” + i;
FogDevice mobile = addMobile(mobileId, userId, appId, dept.getId()); mobile.setUplinkLatency(2);
fogDevices.add(mobile);
}
return dept;
}

// to create a fog devices
private static FogDevice createFogDevice(String nodeName, long mips, int ram, long upBw,long downBw, int level, double ratePerMips, double busyPower, double idlePower)

{
List peList = new ArrayList();

peList.add(new Pe(0, new PeProvisionerOverbooking(mips)));

int hostId = FogUtils.generateEntityId();
long storage = 1000000;
int bw = 10000;

PowerHost host = new PowerHost(hostId,
new RamProvisionerSimple(ram),
new BwProvisionerOverbooking(bw),
storage, peList, new StreamOperatorScheduler(peList),
new FogLinearPowerModel(busyPower, idlePower));

List hostList = new ArrayList();
hostList.add(host);

String arch = “x86”;
String os = “Linux”;
String vmm = “Xen”;
double time_zone = 10.0;
double cost = 3.0;
double costPerMem = 0.05;
double costPerStorage = 0.001;
double costPerBw = 0.0;
LinkedList storageList = new LinkedList();
FogDeviceCharacteristics characteristics = new FogDeviceCharacteristics( arch, os, vmm, host, time_zone, cost, costPerMem, costPerStorage, costPerBw);

FogDevice fogdevice = null;

try {
fogdevice = new FogDevice(nodeName, characteristics,
new AppModuleAllocationPolicy(hostList), storageList,10, upBw, downBw, 0, ratePerMips);

} catch (Exception e)
{
e.printStackTrace();
}

fogdevice.setLevel(level);
return fogdevice;
}
}