Steps for create Fog Topology in iFogSim

How to Create Fog Topology in IFogSim?

Condition for Create Fog Topology in IFogSim

Description:
Creating a Fog topology in iFogSim involves defining a hierarchy of fog devices, edge devices, and cloud resources. Fog devices are instantiated with specific resources, such as processing power, bandwidth, and power models, and connected to form a network with communication links specifying bandwidth and latency. Edge devices serve as intermediaries between fog devices and the cloud. The topology supports multiple levels of infrastructure, including cloud servers and sensors, with task routing, scheduling, and workload management defining how data and tasks flow across the devices in the network.

Sample Code

package org.fog.gui.example;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

import javax.swing.BoxLayout;
import javax.swing.ButtonGroup;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.JToolBar;
import javax.swing.KeyStroke;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.filechooser.FileFilter;
import javax.swing.filechooser.FileNameExtensionFilter;

import org.fog.gui.core.Bridge;
import org.fog.gui.core.Graph;
import org.fog.gui.core.GraphView;
import org.fog.gui.dialog.AddActuator;
import org.fog.gui.dialog.AddFogDevice;
import org.fog.gui.dialog.AddLink;
import org.fog.gui.dialog.AddPhysicalEdge;
import org.fog.gui.dialog.AddPhysicalNode;
import org.fog.gui.dialog.AddSensor;
import org.fog.gui.dialog.SDNRun;

public class FogGui extends JFrame {
private static final long serialVersionUID = -2238414769964738933L;

private JPanel contentPane;

/** Import file names */
private String physicalTopologyFile = ""; //physical
private String deploymentFile = ""; //virtual
private String workloads_background = ""; //workload
private String workloads = ""; //workload

private JPanel panel;
private JPanel graph;

private Graph physicalGraph;
private GraphView physicalCanvas;

private JButton btnRun;

private String mode; //'m':manual; 'i':import

public FogGui() {
setDefaultCloseOperation(EXIT_ON_CLOSE);
setPreferredSize(new Dimension(1280, 800));
setLocationRelativeTo(null);
setTitle("Fog Topology Creator");
contentPane = new JPanel();
setContentPane(contentPane);
contentPane.setLayout(new BorderLayout());
initUI();
initGraph();
pack();
setVisible(true);
}

public final void initUI() {
setUIFont(new javax.swing.plaf.FontUIResource("Serif", Font.BOLD, 18));
panel = new JPanel();
panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
graph = new JPanel(new java.awt.GridLayout(1, 2));
initBar();
doPosition();
}

private void doPosition() {
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
int height = screenSize.height;
int width = screenSize.width;
int x = (width / 2 - 1280 / 2);
int y = (height / 2 - 800 / 2);
this.setLocation(x, y);
}

private final void initBar() {
// Initialize menu and toolbar elements
// Add relevant actions
}

protected void openAddActuatorDialog() {
AddActuator actuator = new AddActuator(physicalGraph, FogGui.this);
physicalCanvas.repaint();
}

protected void openAddLinkDialog() {
AddLink phyEdge = new AddLink(physicalGraph, FogGui.this);
physicalCanvas.repaint();
}

protected void openAddFogDeviceDialog() {
AddFogDevice fogDevice = new AddFogDevice(physicalGraph, FogGui.this);
physicalCanvas.repaint();
}

private void initGraph() {
physicalGraph = new Graph();
physicalCanvas = new GraphView(physicalGraph);
graph.add(physicalCanvas);
contentPane.add(graph, BorderLayout.CENTER);
}

private String importFile(String type) {
JFileChooser fileopen = new JFileChooser();
FileFilter filter = new FileNameExtensionFilter(type.toUpperCase() + " Files", type);
fileopen.addChoosableFileFilter(filter);
int ret = fileopen.showDialog(panel, "Import file");
if (ret == JFileChooser.APPROVE_OPTION) {
File file = fileopen.getSelectedFile();
return file.getPath();
}
return "";
}

private void saveFile(String type, Graph graph) throws IOException {
JFileChooser fileopen = new JFileChooser();
FileFilter filter = new FileNameExtensionFilter(type.toUpperCase() + " Files", type);
fileopen.addChoosableFileFilter(filter);
int ret = fileopen.showSaveDialog(panel);
if (ret == JFileChooser.APPROVE_OPTION) {
String jsonText = graph.toJsonString();
String path = fileopen.getSelectedFile().toString();
File file = new File(path);
FileOutputStream out = new FileOutputStream(file);
out.write(jsonText.getBytes());
out.close();
}
}

public static void main(String args[]) throws InterruptedException {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
FogGui sdn = new FogGui();
sdn.setVisible(true);
}
});
}