Added some exception classes to encapsulate the internal exceptions that can occur when sending Boat/race/regatta data.

#story[778]

mock/src/main/java/seng302/Exceptions/InvalidBoatDataException.java

@@ -0,0 +1,21 @@
+package seng302.Exceptions;
+
+/**
+ * Created by f123 on 25-Apr-17.
+ */
+
+/**
+ * An exception thrown when we cannot generate Boats.xml and send an XML message.
+ */
+public class InvalidBoatDataException extends RuntimeException
+{
+
+    public InvalidBoatDataException()
+    {
+    }
+
+    public InvalidBoatDataException(String message)
+    {
+        super(message);
+    }
+}

mock/src/main/java/seng302/Exceptions/InvalidRaceDataException.java

@@ -0,0 +1,20 @@
+package seng302.Exceptions;
+
+/**
+ * Created by f123 on 25-Apr-17.
+ */
+
+/**
+ * Exception thrown when we cannot generate Race.xml data, and send an XML message.
+ */
+public class InvalidRaceDataException extends RuntimeException
+{
+    public InvalidRaceDataException()
+    {
+    }
+
+    public InvalidRaceDataException(String message)
+    {
+        super(message);
+    }
+}

mock/src/main/java/seng302/Exceptions/InvalidRegattaDataException.java

@@ -0,0 +1,20 @@
+package seng302.Exceptions;
+
+/**
+ * Created by f123 on 25-Apr-17.
+ */
+
+/**
+ * An exception thrown when a Regatta.xml message cannot be generated and sent.
+ */
+public class InvalidRegattaDataException extends RuntimeException
+{
+    public InvalidRegattaDataException()
+    {
+    }
+
+    public InvalidRegattaDataException(String message)
+    {
+        super(message);
+    }
+}

mock/src/main/java/seng302/Model/Event.java

@@ -4,12 +4,18 @@ import org.w3c.dom.Attr;
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 import seng302.Data.RaceData;
+import seng302.Exceptions.InvalidBoatDataException;
+import seng302.Exceptions.InvalidRaceDataException;
+import seng302.Exceptions.InvalidRegattaDataException;
 import seng302.Model.Race;
 import seng302.RaceDataSource;
 
 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
 import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerConfigurationException;
+import javax.xml.transform.TransformerException;
 import javax.xml.transform.TransformerFactory;
 import javax.xml.transform.dom.DOMSource;
 import javax.xml.transform.stream.StreamResult;
@@ -40,7 +46,7 @@ public class Event {
         this.outputStream = outputStream;
     }
 
-    public void start() throws IOException
+    public void start()
     {
         System.out.println("\nREGATTA DATA\n");//TEMP REMOVE debug
         sendRegattaData();
@@ -56,11 +62,19 @@ public class Event {
     }
 
 
-    public void sendRegattaData() {
-        try {
+    public void sendRegattaData() throws InvalidRegattaDataException {
+
 
         DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
-            DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
+        DocumentBuilder docBuilder = null;
+        try
+        {
+            docBuilder = docFactory.newDocumentBuilder();
+        }
+        catch (ParserConfigurationException e)
+        {
+            throw new InvalidRegattaDataException();
+        }
 
         //root element
         Document doc = docBuilder.newDocument();
@@ -108,7 +122,15 @@ public class Event {
         rootElement.appendChild(magneticVariation);
 
         TransformerFactory transformerFactory = TransformerFactory.newInstance();
-            Transformer transformer = transformerFactory.newTransformer();
+        Transformer transformer = null;
+        try
+        {
+            transformer = transformerFactory.newTransformer();
+        }
+        catch (TransformerConfigurationException e)
+        {
+            throw new InvalidRegattaDataException();
+        }
         DOMSource source = new DOMSource(doc);
 
 
@@ -116,20 +138,31 @@ public class Event {
         //Serialize document.
         StringWriter stringWriter = new StringWriter();
         StreamResult result = new StreamResult(stringWriter);
+        try
+        {
             transformer.transform(source,result);
+        }
+        catch (TransformerException e)
+        {
+            throw new InvalidRegattaDataException();
+        }
         //TODO now we should place in XML message object.
         //TODO now we should serialize xml message object.
         //TODO now we should write serialized xml message over this.outputStream.
 
+        try
+        {
             this.outputStream.write(stringWriter.toString().getBytes());//TEMP currently we output the XML doc, not the serialized message.
-
-        } catch (Exception e){
-            e.printStackTrace();
         }
+        catch (IOException e)
+        {
+            throw new InvalidRegattaDataException();
+        }
+
 
     }
 
-    public void sendRaceData() throws IOException
+    public void sendRaceData() throws InvalidRaceDataException
     {
         RaceData raceData = new RaceData(raceDataSource);
         //Serialize race data to an XML as a string.
@@ -139,17 +172,34 @@ public class Event {
         //TODO now we should serialize xml message object.
         //TODO now we should write serialized xml message over this.outputStream.
 
+        try
+        {
             this.outputStream.write(xmlString.getBytes());//TEMP currently we output the XML doc, not the serialized message.
         }
+        catch (IOException e)
+        {
+            throw new InvalidRaceDataException();
+        }
+    }
 
-    public void sendBoatData() {
+    public void sendBoatData() throws InvalidBoatDataException
+    {
 
 
         List<BoatInRace> boatData = raceDataSource.getBoats();
-        try {
+
 
         DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
-            DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
+        DocumentBuilder docBuilder = null;
+
+        try
+        {
+            docBuilder = docFactory.newDocumentBuilder();
+        }
+        catch (ParserConfigurationException e)
+        {
+            throw new InvalidBoatDataException();
+        }
 
         //root element
         Document doc = docBuilder.newDocument();
@@ -227,25 +277,43 @@ public class Event {
         }
 
         TransformerFactory trasformerFactory = TransformerFactory.newInstance();
-            Transformer transformer = trasformerFactory.newTransformer();
+        Transformer transformer = null;
+        try
+        {
+            transformer = trasformerFactory.newTransformer();
+        }
+        catch (TransformerConfigurationException e)
+        {
+            throw new InvalidBoatDataException();
+        }
         DOMSource source = new DOMSource(doc);
 
 
         //Serialize document.
         StringWriter stringWriter = new StringWriter();
         StreamResult result = new StreamResult(stringWriter);
+        try
+        {
             transformer.transform(source,result);
+        }
+        catch (TransformerException e)
+        {
+            throw new InvalidBoatDataException();
+        }
         //TODO now we should place in XML message object.
         //TODO now we should serialize xml message object.
         //TODO now we should write serialized xml message over this.outputStream.
 
+        try
+        {
             this.outputStream.write(stringWriter.toString().getBytes());//TEMP currently we output the XML doc, not the serialized message.
+        }
+        catch (IOException e)
+        {
+            throw new InvalidBoatDataException();
+        }
 
 
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-
     }
 
 }