Change 1

assignments/src/MV3500Cohort2021JulySeptember/projects/McneelyLeckieProject/McneelyLeckieReceiver.java

+
+
+package MV3500Cohort2021JulySeptember.projects.McneelyLeckieProject;
+
+import edu.nps.moves.dis.CommentPdu;
+import edu.nps.moves.dis.OneByteChunk;
+import edu.nps.moves.dis.Pdu;
+import edu.nps.moves.dis.VariableDatum;
+import edu.nps.moves.disenum.PduType;
+import edu.nps.moves.disutil.PduFactory;
+import java.io.ByteArrayInputStream;
+import java.io.DataInputStream;
+import java.net.DatagramPacket;
+import java.net.InetAddress;
+import java.net.MulticastSocket;
+import java.util.ArrayList;
+
+/**
+ *
+ * @author Justin Mcneely
+ * @author Jacob Leckie
+ */
+
+
+public class McneelyLeckieReceiver {
+
+  /** socket parameter of interest */
+    public static final int    MULTICAST_PORT  = 3000;
+    /** socket parameter of interest */
+    public static final String MULTICAST_GROUP = "239.1.2.15"; 
+//    public static final String MULTICAST_GROUP = "192.168.1.247";
+    /** socket parameter of interest */
+    static final boolean USE_FAST_ESPDU = false;
+
+    /**
+     * Program invocation, execution starts here
+     * @param args command-line arguments
+     */
+    @SuppressWarnings("deprecation")
+    public static void main(String[] args) 
+    {
+        
+                PduFactory      factory;
+        try
+        {
+        
+            // This is a java/IPv6 problem. You should also add it to the
+            // arguments used to start the app, eg -Djava.net.preferIPv4Stack=true
+            // set in the "run" section of preferences. Also, typically
+            // netbeans must be restarted after these settings.
+            // https://stackoverflow.com/questions/18747134/getting-cant-assign-requested-address-java-net-socketexception-using-ehcache
+            //System.setProperty("java.net.preferIPv4Stack", "true");
+            //System.out.println("DisExamples.PduReceiver started...");
+            
+            /*MulticastSocket multicastSocket = new MulticastSocket(DESTINATION_PORT);
+            multicastSocket.setTimeToLive(TTL);
+            InetAddress multicastAddress = InetAddress.getByName(MULTICAST_ADDRESS);
+            System.out.println(multicastAddress);            
+            // Join group useful on receiving side
+            multicastSocket.joinGroup(multicastAddress);
+            // You can join multiple groups here*/
+            System.setProperty("java.net.preferIPv4Stack", "true");
+            System.out.println("DisExamples.PduReceiver started...");
+            MulticastSocket socket  = new MulticastSocket  (MULTICAST_PORT);
+            InetAddress address = InetAddress.getByName(MULTICAST_GROUP);
+            socket.joinGroup(address);
+            
+            factory = new PduFactory();
+            
+            int count = 0;
+            int secondNumber = 67;
+            int thirdNumber = 108;
+            int forkliftsAvail = 12;
+            int forkliftsServ = 0;
+            
+            while(true)
+            {
+
+                byte[] packetArray = new byte[1500];
+                DatagramPacket packet = new DatagramPacket(packetArray, packetArray.length);
+                
+                socket.receive(packet);
+                
+                Pdu pdu = factory.createPdu (packet.getData());
+		if (pdu != null)
+		{
+                    short pduType        = pdu.getPduType();
+                    String pduTypeName   = pdu.getClass().getName();
+                    short protocolFamily = pdu.getProtocolFamily(); // TODO get string enumeration
+                    
+                    if(pdu.getPduTypeEnum() == PduType.COMMENT){
+                        CommentPdu cPdu = (CommentPdu)pdu;
+                        @SuppressWarnings("unchecked")
+                        ArrayList<VariableDatum> payload = (ArrayList)cPdu.getVariableDatums();
+                        VariableDatum payloadWrapper = payload.get(0);
+                        @SuppressWarnings("unchecked")
+                        ArrayList<OneByteChunk> oBC = (ArrayList)payloadWrapper.getVariableData();
+                        
+                        //byte[] imageByte = new byte[100000];
+                        
+                        /*for(int i = 0; i < oBC.size(); i++){
+                            imageByte[i] = oBC.get(i).getOtherParameters()[0];
+                        }
+                        
+                        ByteArrayInputStream bais = new ByteArrayInputStream(imageByte);
+                        BufferedImage bimage = ImageIO.read(bais);
+                        //image = bimage;
+                        JFrame frame = new JFrame();
+                        frame.setSize(300, 300);
+                        //JLabel label = new JLabel(new ImageIcon(image));
+                        //frame.add(label);
+                        frame.setVisible(true);
+                        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);*/
+                    }
+                                    count++;
+
+                    if(count > 1){
+                        forkliftsAvail-=1;
+                        forkliftsServ+=1;
+                    }
+                    System.out.println("Marine Aircraft Logistics Squadron 29: Wolverines!");
+                    System.out.println("Order received: " + count + " NSN ID: 1874542689" + " Xrow: " + secondNumber + " Yshelf: "+ thirdNumber + 
+                        " Forklifts Availble: " + forkliftsAvail + " Forklifts in Service: " +forkliftsServ);
+                    System.out.println("______________________________________________________");                   
+                    StringBuilder message = new StringBuilder();
+                    message.append("received DIS PDU: ");
+                    message.append("pduType ");
+                    if (pduType <= 10)
+			message.append(" ");
+			message.append(pduType).append(" ").append(pduTypeName);
+			message.append(", protocolFamily=").append(protocolFamily);
+                        System.out.println(message.toString());
+                    }
+                    else System.out.println("received packet but pdu is null, packet.getData().length=" + packet.getData().length + ", error...");               
+
+                ByteArrayInputStream bais = new ByteArrayInputStream(packet.getData());
+                DataInputStream dis = new DataInputStream(bais);
+                //float firstNumber = dis.readInt();
+                //float secondNumber = dis.readInt();
+                //float thirdNumber = dis.readInt(); 
+                
+
+            }
+        }
+        catch(Exception e)
+        {
+            System.out.println(e);
+        }
+    }
+    
+}

assignments/src/MV3500Cohort2021JulySeptember/projects/McneelyLeckieProject/McneelyLeckieSender.java

+
+package MV3500Cohort2021JulySeptember.projects.McneelyLeckieProject;
+
+import edu.nps.moves.dis.AcknowledgePdu;
+import edu.nps.moves.dis.ActionRequestPdu;
+import edu.nps.moves.dis.CommentPdu;
+import edu.nps.moves.dis.CreateEntityPdu;
+import edu.nps.moves.dis.EntityStatePdu;
+import edu.nps.moves.dis.OneByteChunk;
+import edu.nps.moves.dis.Pdu;
+import edu.nps.moves.dis.RemoveEntityPdu;
+import edu.nps.moves.dis.RepairCompletePdu;
+import edu.nps.moves.dis.RepairResponsePdu;
+import edu.nps.moves.dis.ResupplyCancelPdu;
+import edu.nps.moves.dis.ResupplyOfferPdu;
+import edu.nps.moves.dis.ResupplyReceivedPdu;
+import edu.nps.moves.dis.ServiceRequestPdu;
+import edu.nps.moves.dis.StartResumePdu;
+import edu.nps.moves.dis.StopFreezePdu;
+import edu.nps.moves.dis.VariableDatum;
+import edu.nps.moves.disenum.PduType;
+import edu.nps.moves.examples.ClassNameComparator;
+import java.io.ByteArrayOutputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.net.DatagramPacket;
+import java.net.InetAddress;
+import java.net.MulticastSocket;
+import java.net.UnknownHostException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+
+/**
+ *
+ * @author Justin Mcneely
+ * @author Jacob Leckie
+ */
+
+
+public class McneelyLeckieSender {
+
+    /** Default multicast group address we send on. */
+    public static final String DEFAULT_MULTICAST_ADDRESS = "239.1.2.15";
+    /** socket parameter of interest */
+    public static final int DESTINATION_PORT = 1717;
+    /** Default multicast port used, matches Wire-shark DIS capture default */
+    public static final int    DEFAULT_MULTICAST_PORT    = 3000;
+
+	
+    private int port;
+    InetAddress multicastAddress;
+
+    /** Object constructor
+	 * @param port TCP port of interest
+	 * @param multicast address of interest  */
+    public McneelyLeckieSender (int port, String multicast) 
+    {
+        try
+	{
+            System.setProperty("java.net.preferIPv4Stack", "true");
+            this.port = port;
+            multicastAddress = InetAddress.getByName(multicast);
+            //MulticastSocket multicastSocket = new MulticastSocket(1718);
+            //multicastSocket.setTimeToLive(TTL);
+            InetAddress multicastAddress = InetAddress.getByName(DEFAULT_MULTICAST_ADDRESS);
+            System.out.println(multicastAddress);            
+            // Join group useful on receiving side
+            //multicastSocket.joinGroup(multicastAddress);
+            // You can join multiple groups here
+            if (!multicastAddress.isMulticastAddress())
+            {
+                System.out.println("Not a multicast address: " + multicast);
+            }
+        } 
+		catch (UnknownHostException e) {
+            System.out.println("Unable to open socket: " + e);
+        }
+    }
+
+    /**
+     * Run the program
+     */
+    @SuppressWarnings("deprecation")
+    public void run()
+	{
+		System.out.println("DisExamples.PduSender started...");
+        try {
+           
+            List<Pdu> generatedPdus = new ArrayList<>();
+            MulticastSocket multicastSocket = new MulticastSocket(1718);
+            //multicastSocket.setTimeToLive(TTL);
+            //InetAddress multicastAddress = InetAddress.getByName(MULTICAST_ADDRESS);
+            System.out.println(multicastAddress);            
+            // Join group useful on receiving side
+            multicastSocket.joinGroup(multicastAddress);
+            // You can join multiple groups here
+
+            // Loop through all the enumerated PDU types, create a PDU for each type,
+            // and add that PDU to a list.
+            for (PduType pdu : PduType.values()) {
+                Pdu aPdu = null;
+
+                switch (pdu) // using enumeration values from edu.nps.moves.disenum.*
+				{
+                    case ENTITY_STATE:
+                        aPdu = new EntityStatePdu();
+                        break;
+                        
+                    case COMMENT:
+                        aPdu = new CommentPdu();
+                        CommentPdu cPdu = (CommentPdu)aPdu;
+                        
+                        
+                        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+   
+                        byte[] buffer;
+                        buffer = baos.toByteArray();
+                        DatagramPacket packet = new DatagramPacket(buffer, buffer.length, multicastAddress, DESTINATION_PORT);
+                        System.out.println("Sending Request");
+                        for(int idx = 0; idx < 12; idx++)
+                        {
+                            multicastSocket.send(packet);
+                            //Thread.sleep(1000); // Send 100, one per second
+                            System.out.println("Sending Request");
+                            System.out.println("Sent multicast DIS PDU packet " + idx + " of 12");
+                        }                   
+                        ArrayList<VariableDatum> payload = new ArrayList<VariableDatum>();
+                        ArrayList<OneByteChunk> payloadWrapper = new ArrayList<OneByteChunk>();
+                        VariableDatum variableDatum = new VariableDatum();
+       
+                       
+
+                        variableDatum.setVariableData(payloadWrapper);
+                        
+                        payload.add(variableDatum);
+                        cPdu.setVariableDatums(payload);
+                        break;
+
+//                    case FIRE:
+//                        aPdu = new FirePdu();
+//                        break;
+//
+//                    case DETONATION:
+//                        aPdu = new DetonationPdu();
+//                        break;
+//
+//                    case COLLISION:
+//                        aPdu = new CollisionPdu();
+//                        break;
+
+                    case SERVICE_REQUEST:
+                        aPdu = new ServiceRequestPdu();
+                        break;
+
+                    case RESUPPLY_OFFER:
+                        aPdu = new ResupplyOfferPdu();
+                        break;
+
+                    case RESUPPLY_RECEIVED:
+                        aPdu = new ResupplyReceivedPdu();
+                        break;
+
+                    case RESUPPLY_CANCEL:
+                        aPdu = new ResupplyCancelPdu();
+                        break;
+
+                    case REPAIR_COMPLETE:
+                        aPdu = new RepairCompletePdu();
+                        break;
+
+                    case REPAIR_RESPONSE:
+                        aPdu = new RepairResponsePdu();
+                        break;
+
+                    case CREATE_ENTITY:
+                        aPdu = new CreateEntityPdu();
+                        break;
+
+                    case REMOVE_ENTITY:
+                        aPdu = new RemoveEntityPdu();
+                        break;
+
+                    case START_RESUME:
+                        aPdu = new StartResumePdu();
+                        break;
+
+                    case STOP_FREEZE:
+                        aPdu = new StopFreezePdu();
+                        break;
+
+                    case ACKNOWLEDGE:
+                        aPdu = new AcknowledgePdu();
+                        break;
+
+                    case ACTION_REQUEST:
+                        aPdu = new ActionRequestPdu();
+                        break;
+
+                    default:
+//                        System.out.print("PDU of type " + pdu + " not supported, created or sent ");
+//                        System.out.println();
+                }
+                if (aPdu != null)
+		{
+                    generatedPdus.add(aPdu);
+                }
+            }
+
+            // Sort the created PDUs by class name
+            Collections.sort(generatedPdus, new ClassNameComparator());
+
+            // Send the PDUs we created
+            InetAddress localMulticastAddress = InetAddress.getByName(DEFAULT_MULTICAST_ADDRESS);
+            MulticastSocket socket = new MulticastSocket(DEFAULT_MULTICAST_PORT);
+            socket.joinGroup(localMulticastAddress);
+
+            for (int idx = 0; idx < generatedPdus.size(); idx++)
+		{
+                ByteArrayOutputStream baos = new ByteArrayOutputStream();
+                DataOutputStream dos = new DataOutputStream(baos);
+                byte[] buffer;
+
+                Pdu aPdu = generatedPdus.get(idx);
+
+                aPdu.marshal(dos);
+
+                buffer = baos.toByteArray();
+                DatagramPacket packet = new DatagramPacket(buffer, buffer.length, localMulticastAddress, DEFAULT_MULTICAST_PORT);
+                socket.send(packet);
+                System.out.println("Sent PDU of type " + aPdu.getClass().getName());
+            }
+            
+        } catch (IOException e)
+		{
+            System.out.println(e);
+        }
+    }
+
+    /**
+     * Program invocation, execution starts here
+     * @param args command-line arguments
+     */
+    public static void main(String args[])
+	{
+        if (args.length == 2) {
+            McneelyLeckieSender sender = new McneelyLeckieSender(Integer.parseInt(args[0]), args[1]);
+            sender.run();
+        } else {
+            System.out.println("Usage:   PduSender <port> <multicast group>");
+            System.out.println("Default: PduSender  " + DEFAULT_MULTICAST_PORT + "   " + DEFAULT_MULTICAST_ADDRESS);
+            McneelyLeckieSender sender = new  McneelyLeckieSender(DEFAULT_MULTICAST_PORT, DEFAULT_MULTICAST_ADDRESS);
+            sender.run();
+        }
+    }
+    
+}