1 files changed, 99 insertions, 0 deletions
diff --git a/src/main/java/com/benburwell/planes/sbs/TCPDataSource.java b/src/main/java/com/benburwell/planes/sbs/TCPDataSource.java
new file mode 100644
index 0000000..2224d36
--- /dev/null
+++ b/src/main/java/com/benburwell/planes/sbs/TCPDataSource.java
@@ -0,0 +1,99 @@
+package com.benburwell.planes.sbs;
+
+import java.util.List;
+import java.util.ArrayList;
+import java.io.*;
+import java.net.*;
+
+/**
+ * Created by ben on 11/15/16.
+ */
+public class TCPDataSource implements DataSource {
+    private List<DataListener> subscribers = new ArrayList<>();
+    private String host;
+    private int port;
+    private Thread clientThread = null;
+    private SocketClient client = null;
+
+    public TCPDataSource(String host, int port) {
+        this.host = host;
+        this.port = port;
+    }
+
+    public void subscribe(DataListener listener) {
+        this.subscribers.add(listener);
+    }
+
+    public void open() {
+        this.client = new SocketClient(this.host, this.port);
+        this.clientThread = new Thread(this.client);
+        this.clientThread.start();
+    }
+
+    public void close() {
+        if (this.client != null) {
+            this.client.terminate();
+            try {
+                this.clientThread.join();
+            } catch (InterruptedException ignored) {}
+        }
+    }
+
+    private class SocketClient implements Runnable {
+        private String host;
+        private int port;
+        private Socket clientSocket = null;
+
+        public SocketClient(String host, int port) {
+            this.host = host;
+            this.port = port;
+        }
+
+        public void terminate() {
+            if (this.clientSocket != null) {
+                try {
+                    this.clientSocket.close();
+                } catch (IOException e) {
+                    System.out.println("Got exception closing socket: " + e.getMessage());
+                }
+            }
+        }
+
+        @Override
+        public void run() {
+            System.out.println("Starting socket client");
+            BufferedReader socketReader;
+            try {
+                this.clientSocket = new Socket(this.host, this.port);
+            } catch (IOException e) {
+                System.out.println("Could not connect to " + this.host + " on port " + this.port + ": " + e.getMessage());
+                return;
+            }
+            try {
+                socketReader = new BufferedReader(new InputStreamReader(this.clientSocket.getInputStream()));
+            } catch (IOException e) {
+                System.out.println("Could not create socket reader: " + e.getMessage());
+                return;
+            }
+
+            String receivedMessage;
+            while (true) {
+                try {
+                    receivedMessage = socketReader.readLine();
+                } catch (IOException e) {
+                    System.out.println("Error reading from socket: " + e.getMessage());
+                    return;
+                }
+                try {
+                    SBSPacket packet = new SBSPacket(receivedMessage);
+                    for (DataListener subscriber : subscribers) {
+                        subscriber.handleMessage(packet);
+                    }
+                } catch (MalformedPacketException e) {
+                    System.out.println("Discarding malformed packet: " + receivedMessage);
+                    System.out.println(e.getMessage());
+                }
+            }
+        }
+    }
+}