public void run() {
long start = System.currentTimeMillis() / 1000;
while (true) {
long end = System.currentTimeMillis() / 1000;
while (end - start < routerUpdateInterval * 2) {
end = System.currentTimeMillis() / 1000;
}
router.sendAll(router.constructVector());
start = end;
}
}
/// Pass user's interaction with list to appropriate handler
public void valueChanged(ListSelectionEvent e) {
if (e.getSource() == sourceList) {
if (!e.getValueIsAdjusting()) {
int indexS = sourceList.getSelectedIndex();
srcID = indexS + 1;
drawTest.repaint();
}
}
if (e.getSource() == destList) {
if (!e.getValueIsAdjusting()) {
int indexD = destList.getSelectedIndex();
dstID = indexD + 17;
drawTest.repaint();
}
}
if (e.getSource() == routerList) {
if (!e.getValueIsAdjusting()) {
indexR = routerList.getSelectedIndex();
Router temp = statMux.getRouter(indexR);
int[] pList = temp.getPriorityList();
audioVal.setText(String.valueOf(pList[0]));
videoVal.setText(String.valueOf(pList[1]));
textVal.setText(String.valueOf(pList[2]));
}
}
if (e.getSource() == packTypeList) {
if (!e.getValueIsAdjusting()) {
int temp = packTypeList.getSelectedIndex();
if (temp == 0) {
type = PacketType.AUDIO;
} else if (temp == 1) {
type = PacketType.VIDEO;
} else {
type = PacketType.TEXT;
}
drawTest.repaint();
}
}
}
// getDelay function
// It takes in an optimized path and packet type as input.
// Based on input, the function calculates delay occured when traveling
// through the optimized path
public double getDelay(int[] opath, PacketType type) {
double delay = 0;
for (int i = 1; i < 4; i++) {
Router temp = statMux.getRouter(opath[i] - 4);
int flow = temp.getFlowLevel();
int delayR = temp.getDelay();
int priority = temp.getPriority(type);
int thr = temp.getThroughput();
packThrough[i - 1] = thr;
if (priority == 1) {
loss[i - 1] = thr / 10.0;
}
if (priority == 2) {
loss[i - 1] = thr / 5.0;
}
delay += numPack / thr + delayR + priority * flow;
}
return delay;
}
/// Check for button clicking and apply appropriate response
public void actionPerformed(ActionEvent e) {
/// For each input, pass it to the correct handler
/// Priority of router will be updated based on input
/// Upon user's changes of the priority value, repaint
/// the display component
if (e.getSource() == aPlus) {
Router temp = statMux.getRouter(indexR);
int[] pList = temp.getPriorityList();
pList[0] = dataBound(pList[0] + 1);
temp.setPriorityList(pList);
audioVal.setText(String.valueOf(pList[0]));
videoVal.setText(String.valueOf(pList[1]));
textVal.setText(String.valueOf(pList[2]));
drawTest.repaint();
}
if (e.getSource() == aMinus) {
Router temp = statMux.getRouter(indexR);
int[] pList = temp.getPriorityList();
pList[0] = dataBound(pList[0] - 1);
temp.setPriorityList(pList);
audioVal.setText(String.valueOf(pList[0]));
videoVal.setText(String.valueOf(pList[1]));
textVal.setText(String.valueOf(pList[2]));
drawTest.repaint();
}
if (e.getSource() == vPlus) {
Router temp = statMux.getRouter(indexR);
int[] pList = temp.getPriorityList();
pList[1] = dataBound(pList[1] + 1);
temp.setPriorityList(pList);
audioVal.setText(String.valueOf(pList[0]));
videoVal.setText(String.valueOf(pList[1]));
textVal.setText(String.valueOf(pList[2]));
drawTest.repaint();
}
if (e.getSource() == vMinus) {
Router temp = statMux.getRouter(indexR);
int[] pList = temp.getPriorityList();
pList[1] = dataBound(pList[1] - 1);
temp.setPriorityList(pList);
audioVal.setText(String.valueOf(pList[0]));
videoVal.setText(String.valueOf(pList[1]));
textVal.setText(String.valueOf(pList[2]));
drawTest.repaint();
}
if (e.getSource() == tPlus) {
Router temp = statMux.getRouter(indexR);
int[] pList = temp.getPriorityList();
pList[2] = dataBound(pList[2] + 1);
temp.setPriorityList(pList);
audioVal.setText(String.valueOf(pList[0]));
videoVal.setText(String.valueOf(pList[1]));
textVal.setText(String.valueOf(pList[2]));
drawTest.repaint();
}
if (e.getSource() == tMinus) {
Router temp = statMux.getRouter(indexR);
int[] pList = temp.getPriorityList();
pList[2] = dataBound(pList[2] - 1);
temp.setPriorityList(pList);
audioVal.setText(String.valueOf(pList[0]));
videoVal.setText(String.valueOf(pList[1]));
textVal.setText(String.valueOf(pList[2]));
drawTest.repaint();
}
}
public void paint(Graphics g) {
path = findOptimizedPath(srcID, dstID, type);
/// Create the drawing board
Dimension d = getSize();
g.setColor(Color.white);
g.fillRect(1, 1, d.width - 2, d.height - 2);
g.setColor(Color.black);
g.drawRect(1, 1, d.width - 2, d.height - 2);
g.setFont(serifFont);
/// Draw the whole network, including all routers with
/// delay and flow level, sources and destinations.
int numR = 1;
int w = 95;
int h = d.height / 5;
int pos = -1;
for (int i = 0; i < 3; i++) {
g.drawOval(w, h + 100 * i, 40, 40);
g.drawString("S" + String.valueOf(i + 1), w + 13, h + 100 * i - 5);
}
for (int i = 0; i < 3; i++) {
pos++;
Router temp = statMux.getRouter(pos);
g.drawOval(w + 110, h + 100 * i, 40, 40);
g.drawString("R" + String.valueOf(numR++), w + 123, h + 100 * i - 5);
g.drawString(
String.valueOf(temp.getDelay() * temp.getPriority(type) + temp.getFlowLevel()),
w + 125,
h + 100 * i + 15);
g.drawString(String.valueOf(temp.getFlowLevel()), w + 125, h + 100 * i + 35);
}
h = d.height / 11;
for (int i = 0; i < 4; i++) {
pos++;
Router temp = statMux.getRouter(pos);
g.drawOval(w + 210, h + 100 * i, 40, 40);
g.drawString("R" + String.valueOf(numR++), w + 223, h + 100 * i - 5);
g.drawString(
String.valueOf(temp.getDelay() * temp.getPriority(type) + temp.getFlowLevel()),
w + 225,
h + 100 * i + 15);
g.drawString(String.valueOf(temp.getFlowLevel()), w + 225, h + 100 * i + 35);
}
h = 20;
for (int i = 0; i < 6; i++) {
pos++;
Router temp = statMux.getRouter(pos);
g.drawOval(w + 310, h + 80 * i, 40, 40);
g.drawString("R" + String.valueOf(numR++), w + 320, h + 80 * i - 5);
g.drawString(
String.valueOf(temp.getDelay() * temp.getPriority(type) + temp.getFlowLevel()),
w + 325,
h + 80 * i + 15);
g.drawString(String.valueOf(temp.getFlowLevel()), w + 325, h + 80 * i + 35);
}
for (int i = 0; i < 4; i++) {
g.drawOval(w + 410, d.height / 11 + 100 * i, 40, 40);
g.drawString("D" + String.valueOf(i + 1), w + 423, d.height / 11 + 100 * i - 5);
}
g.setColor(Color.black);
int[][] connection = statMux.getConnections();
/// Check buffer for connections at each step and draw links at layer1
for (int i = 0; i < connection[path[0] - 1].length; i++) {
int temp = connection[path[0] - 1][i] - 3;
g.drawLine(w + 40, (path[0]) * d.height / 5 + 20, w + 110, temp * d.height / 5 + 20);
}
/// Check buffer for connections at each step and draw links at layer2
for (int i = 0; i < connection[path[1] - 1].length; i++) {
int temp = connection[path[1] - 1][i] - 7;
g.drawLine(
w + 150, (path[1] - 3) * d.height / 5 + 20, w + 210, (d.height / 11) + 100 * temp + 20);
}
/// Check buffer for connections at each step and draw links at layer3
for (int i = 0; i < connection[path[2] - 1].length; i++) {
int temp = connection[path[2] - 1][i] - 11;
g.drawLine(w + 250, (d.height / 11) + 100 * (path[2] - 7) + 20, w + 310, 80 * temp + 40);
}
/// Draw optimized path for packets traveling between source
/// and destination
h = d.height / 5;
Graphics2D g2 = (Graphics2D) g;
g2.setStroke(new BasicStroke(2));
g2.setColor(Color.red);
g2.drawLine(w + 40, h * (path[0]) + 20, w + 110, h * (path[1] - 3) + 20);
g2.drawLine(
w + 150, h * (path[1] - 3) + 20, w + 210, (d.height / 11) + 100 * (path[2] - 7) + 20);
g2.drawLine(
w + 250, (d.height / 11) + 100 * (path[2] - 7) + 20, w + 310, 80 * (path[3] - 11) + 40);
g2.drawLine(
w + 350, 80 * (path[3] - 11) + 40, w + 410, (d.height / 11) + 100 * (path[4] - 17) + 20);
/// Calculate and display loss, delay, and throughput
delayTime = getDelay(path, type);
throughPut = getThroughput(path);
int numPackLost = getLossRate(numTransfer);
lossRate = numPackLost / 100000.0 + 0.0005 * delayTime;
delayVal.setText(String.format("%.2f", delayTime));
throuVal.setText(String.valueOf(throughPut));
lossVal.setText(String.format("%.4f", lossRate));
}