// 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; }
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)); }