Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package udpserver; import java.awt.BorderLayout; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.net.DatagramPacket; import java.net.DatagramSocket; import java.net.InetAddress; import java.net.SocketException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.HashMap; import java.util.Map; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JPanel; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.plot.XYPlot; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; /** * * @author ZENBOOK */ public class UDPui extends javax.swing.JFrame { private static int total_byte = 1638400; private Thread backgroundProcess; private ArrayList<DataCount> countSeparate; private Map<String, Integer> counting = new HashMap<String, Integer>(); // private Boolean running = false; private Runnable background; private DatagramSocket serverSocket; private Boolean available = true; private XYSeries series; /** * Creates new form UDPui */ public UDPui() { // <editor-fold defaultstate="collapsed" desc="Graph"> series = new XYSeries("ECG Reading"); series.setMaximumItemCount(50); XYSeriesCollection dataset = new XYSeriesCollection(series); JFreeChart chart = ChartFactory.createXYLineChart("ECG Reading", "Time (seconds)", "Voltage (volt)", dataset); final XYPlot plot = chart.getXYPlot(); NumberAxis domain = (NumberAxis) plot.getDomainAxis(); JPanel jPanel1 = new JPanel(); jPanel1.setLayout(new java.awt.BorderLayout()); jPanel1.setVisible(true); jPanel1.setSize(600, 500); jPanel1.add(new ChartPanel(chart), BorderLayout.CENTER); jPanel1.validate(); add(jPanel1); // </editor-fold> initComponents(); receiveUDP(); // tempReceiveUDP(); // new UDPServer(valuePane); } //<editor-fold defaultstate="collapsed" desc="tempReceiveUDP"> private void tempReceiveUDP() { background = new Runnable() { public void run() { try { serverSocket = new DatagramSocket(9876); } catch (SocketException ex) { Logger.getLogger(UDPui.class.getName()).log(Level.SEVERE, null, ex); } // while (true) { // byte[] receiveData = new byte[1024]; // DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length); // if (!new String(receivePacket.getData(), receivePacket.getOffset(), receivePacket.getLength()).equals("")) { // int count = 1; while (true) { try { byte[] receiveData = new byte[total_byte]; byte[] sendData = new byte[32]; DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length); serverSocket.receive(receivePacket); String message = new String(receivePacket.getData(), receivePacket.getOffset(), receivePacket.getLength()); // String word = serverSocket.getInetAddress().toString(); // Integer count = counting.get(word); // if (count == null) { // counting.put(word, 1); // } // else { // counting.put(word, count + 1); // } boolean looprun = true; String word = receivePacket.getAddress().getHostAddress(); System.out.println(word); // System.out.println(message); while (looprun) { if (message.contains("&")) { message = message.substring(message.indexOf("&") + 1); Integer count = counting.get(word); if (count == null) { counting.put(word, 2); } else { counting.put(word, count + 1); } // System.out.println(count + ":" + message); } else { looprun = false; } } if (message.equals("end")) { valuePane.setCaretPosition(valuePane.getDocument().getLength()); //send back to mobile InetAddress IPAddress = receivePacket.getAddress(); int port = receivePacket.getPort(); String capitalizedSentence = counting.get(word) + ""; sendData = capitalizedSentence.getBytes(); DatagramPacket sendPacket = new DatagramPacket(sendData, sendData.length, IPAddress, port); serverSocket.send(sendPacket); //end send back to mobile // count = 1; // break; counting.remove(word); } else if (available) { // series.add(count, Double.parseDouble(message)); // valuePane.setText(valuePane.getText().toString() + count + ":" + message + "\n"); // valuePane.setCaretPosition(valuePane.getDocument().getLength()); // count++; } } catch (IOException ex) { Logger.getLogger(UDPui.class.getName()).log(Level.SEVERE, null, ex); } } // } // } } }; backgroundProcess = new Thread(background); } //</editor-fold> private void receiveUDP() { countSeparate = new ArrayList<>(); background = new Runnable() { public void run() { try { serverSocket = new DatagramSocket(9876); } catch (SocketException ex) { Logger.getLogger(UDPui.class.getName()).log(Level.SEVERE, null, ex); } // while (true) { // byte[] receiveData = new byte[1024]; // DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length); //<editor-fold defaultstate="collapsed" desc="Start timer after receive a packet"> // try { // serverSocket.receive(receivePacket); // series.clear(); // valuePane.setText(""); available = true; // System.out.println(available); // } catch (IOException ex) { // Logger.getLogger(UDPui.class.getName()).log(Level.SEVERE, null, ex); // } // Timer timer = new Timer(); // timer.schedule(new TimerTask() { // @Override // public void run() { // available = false; // System.out.println("Finish Timer"); // } // }, 1 * 1000); //</editor-fold> // if (!new String(receivePacket.getData(), receivePacket.getOffset(), receivePacket.getLength()).equals("")) { // int count = 1; // while (available) { while (true) { try { byte[] receiveData = new byte[total_byte]; byte[] sendData = new byte[32]; DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length); serverSocket.receive(receivePacket); String word = receivePacket.getAddress().getHostAddress(); System.out.println(word); String message = new String(receivePacket.getData(), receivePacket.getOffset(), receivePacket.getLength()); boolean looprun = true; // System.out.println(message); while (looprun) { Integer countt = counting.get(word); if (message.contains("&")) { message = message.substring(message.indexOf("&") + 1); // count++; // Integer countt = counting.get(word); if (countt == null) { counting.put(word, 1); } else { counting.put(word, countt + 1); } // System.out.println(count + ":" + message); } else { if (countt == null) { counting.put(word, 1); } else { counting.put(word, countt + 1); } System.out.println(counting.get(word)); looprun = false; } } if (message.contains("start")) { if (counting.get(word) != null) { counting.remove(word); } } else if (message.contains("end")) { message = message.substring(message.indexOf("end") + 3); // valuePane.setCaretPosition(valuePane.getDocument().getLength()); //send back to mobile InetAddress IPAddress = receivePacket.getAddress(); int port = receivePacket.getPort(); // String capitalizedSentence = count + ""; String capitalizedSentence = counting.get(word) + ""; sendData = capitalizedSentence.getBytes(); DatagramPacket sendPacket = new DatagramPacket(sendData, sendData.length, IPAddress, port); serverSocket.send(sendPacket); String timeStamp = new SimpleDateFormat("yyyy-MM-dd_HH:mm:ss") .format(Calendar.getInstance().getTime()); String content = IPAddress.getCanonicalHostName() + "," + timeStamp + "," + (counting.get(word) - 1) + "," + message; saveFile(content); //end send back to mobile // System.out.println(counting.get(word)); // count = 1; counting.remove(word); // break; } else if (available) { //<editor-fold defaultstate="collapsed" desc="check hasmap key"> // if (hm.size() > 0 && hm.containsKey(serverSocket.getInetAddress().getHostAddress())) { // hm.put(foundKey, new Integer(((int) hm.get(foundKey)) + 1)); // hm.put(serverSocket.getInetAddress().getHostAddress(), new Integer(((int) hm.get(serverSocket.getInetAddress().getHostAddress())) + 1)); // } else { // hm.put(serverSocket.getInetAddress().getHostAddress(), 1); // hm.entrySet().add(new Map<String, Integer>.Entry<String, Integer>()); // } //</editor-fold> // series.add(count, Double.parseDouble(message)); // valuePane.setText(valuePane.getText().toString() + count + ":" + message + "\n"); // valuePane.setCaretPosition(valuePane.getDocument().getLength()); // count++; } } catch (IOException ex) { Logger.getLogger(UDPui.class.getName()).log(Level.SEVERE, null, ex); valuePane.setText(valuePane.getText().toString() + "IOException" + "\n"); } } // valuePane.setText(valuePane.getText().toString() + "Out of while loop" + "\n"); // } // } } private void saveFile(String content) { try { File desktop = new File(System.getProperty("user.home"), "Desktop"); File file = new File(desktop.getAbsoluteFile() + "/udp.csv"); if (!file.exists()) { file.createNewFile(); } FileOutputStream fop = new FileOutputStream(file, true); fop.write((content + "\n").getBytes()); fop.flush(); fop.close(); // String timeStamp = new SimpleDateFormat("yyyy-MM-dd_HH:mm:ss").format(Calendar.getInstance().getTime()); // valuePane.setText(valuePane.getText().toString() + timeStamp + "\n"); } catch (IOException ex) { Logger.getLogger(UDPui.class.getName()).log(Level.SEVERE, null, ex); String timeStamp = new SimpleDateFormat("yyyy-MM-dd_HH:mm:ss") .format(Calendar.getInstance().getTime()); valuePane.setText(valuePane.getText().toString() + timeStamp + "\n"); } } }; backgroundProcess = new Thread(background); } /** * This method is called from within the constructor to initialize the form. * WARNING: Do NOT modify this code. The content of this method is always * regenerated by the Form Editor. */ @SuppressWarnings("unchecked") // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents private void initComponents() { stBT = new javax.swing.JButton(); jScrollPane1 = new javax.swing.JScrollPane(); valuePane = new javax.swing.JTextArea(); graphPanel = new javax.swing.JPanel(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); stBT.setText("START"); stBT.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { stBTActionPerformed(evt); } }); valuePane.setColumns(20); valuePane.setRows(5); valuePane.addInputMethodListener(new java.awt.event.InputMethodListener() { public void caretPositionChanged(java.awt.event.InputMethodEvent evt) { } public void inputMethodTextChanged(java.awt.event.InputMethodEvent evt) { valuePaneInputMethodTextChanged(evt); } }); jScrollPane1.setViewportView(valuePane); javax.swing.GroupLayout graphPanelLayout = new javax.swing.GroupLayout(graphPanel); graphPanel.setLayout(graphPanelLayout); graphPanelLayout.setHorizontalGroup(graphPanelLayout .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addGap(0, 590, Short.MAX_VALUE)); graphPanelLayout.setVerticalGroup(graphPanelLayout .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addGap(0, 0, Short.MAX_VALUE)); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup().addContainerGap() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup() .addGap(0, 0, Short.MAX_VALUE).addComponent(stBT).addGap(36, 36, 36)) .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup() .addComponent(graphPanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 274, javax.swing.GroupLayout.PREFERRED_SIZE) .addContainerGap())))); layout.setVerticalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addGroup( javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup().addContainerGap() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(graphPanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 489, Short.MAX_VALUE)) .addGap(18, 18, 18).addComponent(stBT).addGap(27, 27, 27))); pack(); }// </editor-fold>//GEN-END:initComponents private void stBTActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_stBTActionPerformed // TODO add your handling code here: // if(stBT.getText().toString().equals("START")){ // stBT.setText("STOP"); valuePane.setText(""); series.clear(); available = true; if (!backgroundProcess.isAlive()) { stBT.setText("CLEAR"); backgroundProcess.start(); } // }else{ // stBT.setText("START"); // } }//GEN-LAST:event_stBTActionPerformed private void valuePaneInputMethodTextChanged(java.awt.event.InputMethodEvent evt) {//GEN-FIRST:event_valuePaneInputMethodTextChanged // TODO add your handling code here: }//GEN-LAST:event_valuePaneInputMethodTextChanged /** * @param args the command line arguments */ public static void main(String args[]) { /* Set the Nimbus look and feel */ //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) "> /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel. * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html */ try { for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) { if ("Nimbus".equals(info.getName())) { javax.swing.UIManager.setLookAndFeel(info.getClassName()); break; } } } catch (ClassNotFoundException ex) { java.util.logging.Logger.getLogger(UDPui.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (InstantiationException ex) { java.util.logging.Logger.getLogger(UDPui.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { java.util.logging.Logger.getLogger(UDPui.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (javax.swing.UnsupportedLookAndFeelException ex) { java.util.logging.Logger.getLogger(UDPui.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } //</editor-fold> /* Create and display the form */ java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new UDPui().setVisible(true); } }); } // Variables declaration - do not modify//GEN-BEGIN:variables private javax.swing.JPanel graphPanel; private javax.swing.JScrollPane jScrollPane1; private javax.swing.JButton stBT; private javax.swing.JTextArea valuePane; // End of variables declaration//GEN-END:variables }