Added a few decoders and unit converters

- Units can be converted from int to degrees as a double
- XML message now keeps the most recent XML file
#story[782]

network/src/main/java/seng302/Networking/MessageDecoders/XMLMessageDecoder.java

@@ -86,4 +86,5 @@ public class XMLMessageDecoder {
         InputSource is = new InputSource(new StringReader(xmlMessage));
         return is;
     }
+
 }

network/src/main/java/seng302/Networking/Utils/AC35UnitConverter.java

@@ -0,0 +1,21 @@
+package seng302.Networking.Utils;
+
+/**
+ * Created by fwy13 on 28/04/17.
+ */
+public class AC35UnitConverter {
+
+    public static double convertGPS(long value){
+        //converts latitude or longitue to angle
+        return (double) value * 180.0/21474836418.0;//2^31 = 21474836418
+    }
+
+    public static double convertHeading(long value){
+        return (double) value * 360.0/65536.0;//2^15
+    }
+
+    public static double convertTrueWindAngle(long value){
+        return (double) value * 180.0/32768.0;//-2^15 to 2^15
+    }
+
+}

network/src/main/java/seng302/Networking/Utils/XMLMessage.java

@@ -31,4 +31,8 @@ public class XMLMessage extends AC35Data{
     public InputSource getXmlMessage() {
         return xmlMessage;
     }
+
+    public int getXmlMsgSubType() {
+        return xmlMsgSubType;
+    }
 }

network/src/main/java/seng302/Networking/VisualiserInput.java

@@ -1,13 +1,20 @@
 package seng302.Networking;
+import org.xml.sax.SAXException;
+import seng302.Mock.BoatXMLReader;
+import seng302.Mock.RegattaXMLReader;
+import seng302.Mock.StreamedCourseXMLReader;
 import seng302.Networking.BinaryMessageDecoder;
 import seng302.Networking.MessageDecoders.*;
 import seng302.Networking.Utils.*;
 
+import javax.xml.parsers.ParserConfigurationException;
 import java.io.*;
 import java.net.*;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
 import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
 import java.util.concurrent.TimeUnit;
 
 import static seng302.Networking.Utils.ByteConverter.bytesToInt;
@@ -27,12 +34,17 @@ public class VisualiserInput implements Runnable
 
     long heartbeatSeqNum;
 
+    private Map<Integer, BoatLocationMessage> boatLocation;
+    private BoatXMLReader boatXMLReader;
+    private StreamedCourseXMLReader streamedCourseXMLReader;
+    private RegattaXMLReader regattaXMLReader;
 
 
     VisualiserInput() throws IOException{
 
 //        connectionSocket = new Socket(InetAddress.getLocalHost(), 4942);
 
+        boatLocation = new HashMap<>();
         //this is the test data that streams form the AC35 website
         connectionSocket = new Socket("livedata.americascup.com",4941);
 
@@ -106,6 +118,20 @@ public class VisualiserInput implements Runnable
                          break;
                      case XMLMESSAGE:
 //                         System.out.println("XML Message!");
+                         XMLMessage xml = (XMLMessage) data;/*
+                         try {
+                             if (xml.getXmlMsgSubType() == xml.XMLTypeRegatta){
+                                 regattaXMLReader = new RegattaXMLReader(xml.getXmlMessage());
+                             } else if (xml.getXmlMsgSubType() == xml.XMLTypeRace){
+                                 streamedCourseXMLReader = new StreamedCourseXMLReader(xml.getXmlMessage());
+                             } else if (xml.getXmlMsgSubType() == xml.XMLTypeBoat){
+                                 boatXMLReader = new BoatXMLReader(xml.getXmlMessage());
+                             }
+                         } catch (SAXException e) {
+                             e.printStackTrace();
+                         } catch (ParserConfigurationException e) {
+                             e.printStackTrace();
+                         }*/
                          System.out.println(((XMLMessage)data).getXmlMessage());
                          break;
                      case RACESTARTSTATUS:
@@ -124,6 +150,14 @@ public class VisualiserInput implements Runnable
                          //no decoder
                          break;
                      case BOATLOCATION:
+                         BoatLocationMessage msg = (BoatLocationMessage) data;
+                         if (boatLocation.containsKey(msg.getSourceID())){
+                             if (msg.getTime() > boatLocation.get(msg.getSourceID()).getTime()){
+                                 boatLocation.put(msg.getSourceID(), msg);
+                             }
+                         }else{
+                             boatLocation.put(msg.getSourceID(), msg);
+                         }
 //                         System.out.println("Boat Location Message!");
                          break;
                      case MARKROUNDING: