Created AC35 Streaming server

- Sends heartbeat messages every 5 seconds - Sends XML at beginning Tags: #story[29]
2026-05-09 14:28:43 +00:00 · 2017-04-19 19:05:19 +12:00
parent 34872a822b
commit edc306da22
12 changed files with 783 additions and 0 deletions
@@ -0,0 +1,94 @@
+package seng302.server;
+
+import seng302.server.messages.Heartbeat;
+import seng302.server.messages.Message;
+import seng302.server.messages.XMLMessage;
+import seng302.server.messages.XMLMessageSubType;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.Timer;
+import java.util.TimerTask;
+
+public class ServerThread implements Runnable{
+    private Thread runner;
+    private StreamingServerSocket server;
+    private final int HEARTBEAT_PERIOD = 5000;
+    private final int PORT_NUMBER = 8085;
+
+    public ServerThread(String threadName){
+        runner = new Thread(this, threadName);
+        System.out.println("Spawning Server Thread");
+        runner.start();
+    }
+
+    /**
+     * Creates and returns an XML Message from the file specified
+     * @param fileName The source XML file
+     * @param type The XML Message type
+     * @return The XML Message
+     */
+    public Message getXmlMessage(String fileName, XMLMessageSubType type){
+        String fileContents = null;
+
+        try {
+            fileContents = new String(Files.readAllBytes(Paths.get(this.getClass().getResource(fileName).getPath().substring(1))));
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        if (fileContents != null){
+            return new XMLMessage(fileContents, type, server.getSequenceNumber());
+        }
+
+        return null;
+    }
+
+    public void run() {
+        try{
+            server = new StreamingServerSocket(PORT_NUMBER);
+        }
+        catch (IOException e){
+            System.err.println("Failed to bind socket: " + e.getMessage());
+        }
+
+        server.start();
+
+        try {
+            // Load and send race XML data
+            Message raceData = getXmlMessage("/server_config/race.xml", XMLMessageSubType.RACE);
+            Message boatData = getXmlMessage("/server_config/boats.xml", XMLMessageSubType.BOAT);
+            Message regatta = getXmlMessage("/server_config/regatta.xml", XMLMessageSubType.REGATTA);
+
+            if (raceData != null){
+                server.send(raceData);
+            }
+
+            if (boatData != null){
+                server.send(boatData);
+            }
+
+            if (regatta != null){
+                server.send(regatta);
+            }
+
+            // Timer to send the heartbeat
+            Timer t = new Timer();
+            t.schedule(new TimerTask() {
+                @Override
+                public void run() {
+                    Message hb = new Heartbeat(server.getSequenceNumber());
+                    try {
+                        server.send(hb);
+                    } catch (IOException e) {
+                        e.printStackTrace();
+                    }
+                }
+            }, 0, HEARTBEAT_PERIOD);
+
+        } catch (IOException e) {
+            System.err.println(e.getMessage());
+        }
+    }
+}