Added BoatActonEncoder.

Updated ControllerClient to use RaceVisionByteEncoder.encode(message). It also logs a warning if the encoding fails. Also removed pointless and out of place encode/decode of the action enum.
Added a BoatActionDecoderTest which tests encoding/decoding a BoatAction Message.
issue #35 #36
#story[1095]

racevisionGame/src/main/java/network/MessageEncoders/BoatActionEncoder.java

@@ -0,0 +1,40 @@
+package network.MessageEncoders;
+
+
+import network.Messages.AC35Data;
+import network.Messages.BoatAction;
+
+import java.nio.ByteBuffer;
+
+import static network.Utils.ByteConverter.intToBytes;
+
+/**
+ * This encoder can encode a {@link BoatAction} message.
+ */
+public class BoatActionEncoder implements MessageEncoder {
+
+
+    /**
+     * Constructor.
+     */
+    public BoatActionEncoder() {
+    }
+
+
+    @Override
+    public byte[] encode(AC35Data message) {
+
+        //Downcast.
+        BoatAction boatAction = (BoatAction) message;
+
+        //Message is 1 byte.
+        ByteBuffer boatActionMessage = ByteBuffer.allocate(1);
+
+        boatActionMessage.put(intToBytes(boatAction.getBoatAction(), 1));
+
+        byte [] result = boatActionMessage.array();
+
+        return result;
+
+    }
+}

racevisionGame/src/main/java/network/MessageEncoders/EncoderFactory.java

@@ -33,6 +33,8 @@ public class EncoderFactory {
 
             case JOIN_ACCEPTANCE: return new JoinAcceptanceEncoder();
 
+            case BOATACTION: return new BoatActionEncoder();
+
 
             default: throw new InvalidMessageTypeException("Unrecognised message type: " + type);
         }

racevisionGame/src/main/java/network/MessageEncoders/RaceVisionByteEncoder.java

@@ -341,12 +341,6 @@ public class RaceVisionByteEncoder {
         return result.array();
     }
 
-    public static byte[] boatActionMessage(BoatAction boatAction){
-        ByteBuffer boatActionMessage = ByteBuffer.allocate(1);
-        boatActionMessage.put(intToBytes(boatAction.getBoatAction(), 1));
-        byte [] result = boatActionMessage.array();
-        return result;
-    }
 
 
     /**

racevisionGame/src/main/java/network/Messages/Enums/BoatActionEnum.java

@@ -8,6 +8,10 @@ import java.util.Map;
  */
 public enum BoatActionEnum {
     NOT_A_STATUS(-1),
+
+    /**
+     * Autopilot = auto VMG.
+     */
     AUTO_PILOT(1),
     SAILS_IN(2),
     SAILS_OUT(3),

racevisionGame/src/main/java/visualiser/gameController/ControllerClient.java

@@ -1,6 +1,7 @@
 package visualiser.gameController;
 
 import network.BinaryMessageEncoder;
+import network.Exceptions.InvalidMessageException;
 import network.MessageEncoders.RaceVisionByteEncoder;
 import network.Messages.BoatAction;
 import network.Messages.Enums.BoatActionEnum;
@@ -12,6 +13,8 @@ import java.io.IOException;
 import java.net.Socket;
 import java.net.SocketException;
 import java.nio.ByteBuffer;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 /**
  * Basic service for sending key presses to game server
@@ -50,18 +53,20 @@ public class ControllerClient  {
         BoatActionEnum protocolCode = key.getProtocolCode();
         if(protocolCode != BoatActionEnum.NOT_A_STATUS) {
 
-            byte[] bytes = new byte[4];
-            ByteBuffer.wrap(bytes).putInt(protocolCode.getValue());
-            BoatActionEnum boatActionEnum = BoatActionEnum.fromByte(bytes[3]);
+            BoatAction boatAction = new BoatAction(protocolCode);
 
-            BoatAction boatAction = new BoatAction(boatActionEnum);
-
-            byte[] encodedBoatAction = RaceVisionByteEncoder.boatActionMessage(boatAction);
+            //Encode BoatAction.
+            byte[] encodedBoatAction = new byte[0];
+            try {
+                encodedBoatAction = RaceVisionByteEncoder.encode(boatAction);
+            } catch (InvalidMessageException e) {
+                Logger.getGlobal().log(Level.WARNING, "Could not encode BoatAction: " + boatAction, e);
+            }
 
             BinaryMessageEncoder binaryMessage = new BinaryMessageEncoder(MessageType.BOATACTION, System.currentTimeMillis(), 0,
                     (short) encodedBoatAction.length, encodedBoatAction);
 
-            System.out.println("Sending out key: " + boatActionEnum);
+            System.out.println("Sending out key: " + protocolCode);
             outputStream.write(binaryMessage.getFullMessage());
         }
     }

racevisionGame/src/test/java/network/MessageDecoders/BoatActionDecoderTest.java

@@ -0,0 +1,109 @@
+package network.MessageDecoders;
+
+import network.Exceptions.InvalidMessageException;
+import network.MessageEncoders.RaceVisionByteEncoder;
+import network.Messages.BoatAction;
+import network.Messages.Enums.BoatActionEnum;
+import network.Messages.Enums.RequestToJoinEnum;
+import network.Messages.RequestToJoin;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+
+/**
+ * Test for the BoatAction encoder and decoder
+ */
+public class BoatActionDecoderTest {
+
+
+    /**
+     * Encodes and decodes a given message.
+     * @param message Message to encode/decode.
+     * @return The decoded message.
+     */
+    private BoatAction encodeDecodeMessage(BoatAction message) throws InvalidMessageException {
+
+        //Encode.
+        byte [] testEncodedMessage = RaceVisionByteEncoder.encode(message);
+
+        //Decode.
+        BoatActionDecoder testDecoder = new BoatActionDecoder(testEncodedMessage);
+        BoatActionEnum decodedBoatAction = testDecoder.getBoatAction();
+
+        BoatAction decodedMessage = new BoatAction(decodedBoatAction);
+
+        return decodedMessage;
+    }
+
+
+    /**
+     * Tests if a specific boat action type message can be encoded and decoded correctly.
+     * @param type The type of boat action.
+     */
+    private void boatActionTypeTest(BoatActionEnum type) throws Exception {
+
+        //Prepare message.
+        BoatAction beforeMessage = new BoatAction(type);
+
+
+        //Encode/decode it.
+        BoatAction afterMessage = encodeDecodeMessage(beforeMessage);
+
+
+        //Compare.
+        assertEquals(beforeMessage.getBoatAction(), afterMessage.getBoatAction());
+
+    }
+
+
+    /**
+     * Tests if an autopilot message can be encoded and decoded correctly.
+     */
+    @Test
+    public void autoPilotTest() throws Exception {
+        boatActionTypeTest(BoatActionEnum.AUTO_PILOT);
+    }
+
+    /**
+     * Tests if a sails in message can be encoded and decoded correctly.
+     */
+    @Test
+    public void sailsInTest() throws Exception {
+        boatActionTypeTest(BoatActionEnum.SAILS_IN);
+    }
+
+    /**
+     * Tests if a sails out message can be encoded and decoded correctly.
+     */
+    @Test
+    public void sailsOutTest() throws Exception {
+        boatActionTypeTest(BoatActionEnum.SAILS_OUT);
+    }
+
+    /**
+     * Tests if a tack/gybe message can be encoded and decoded correctly.
+     */
+    @Test
+    public void tackGybeTest() throws Exception {
+        boatActionTypeTest(BoatActionEnum.TACK_GYBE);
+    }
+
+    /**
+     * Tests if an upwind message can be encoded and decoded correctly.
+     */
+    @Test
+    public void upwindTest() throws Exception {
+        boatActionTypeTest(BoatActionEnum.UPWIND);
+    }
+
+    /**
+     * Tests if a downwind message can be encoded and decoded correctly.
+     */
+    @Test
+    public void downwindTest() throws Exception {
+        boatActionTypeTest(BoatActionEnum.DOWNWIND);
+    }
+
+
+}