julianthome · December 7, 2016 10:25 · Dec 7, 2016
diff --git a/Client.java b/Client.java
@@ -0,0 +1,39 @@
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.net.Socket;
+import java.util.Arrays;
+import java.util.Set;
+
+
+public class Client {
+
+	public static void main(String[] args) {
+		String sentence = " Y = [3,2,3,5]\n";
+
+		byte [] b = Arrays.copyOf(sentence.getBytes(), 512);
+
+		Socket clientSocket = null;
+		try {
+			clientSocket = new Socket("127.0.0.1", 30001);
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		DataOutputStream outToServer = null;
+		try {
+			outToServer = new DataOutputStream(clientSocket.getOutputStream());
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		try {
+			outToServer.write(b, 0, 512);
+			outToServer.flush();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		try {
+			outToServer.close();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+	}
+}
diff --git a/extserver.m b/extserver.m
@@ -0,0 +1,52 @@
+% based on http://nl.mathworks.com/matlabcentral/fileexchange/25249-tcpip-socket-communications-in-matlab-using-java-classes/content/server.m
+function extserver(output_port)
+
+import java.net.ServerSocket
+import java.io.*
+
+server_socket  = [];
+output_socket  = [];
+
+try
+
+    fprintf(1, ['Waiting for client to connect to port : %d\n'], output_port);
+
+    % wait for 1 second for client to connect server socket
+    server_socket = ServerSocket(output_port);
+    server_socket.setSoTimeout(70000);
+
+    in_socket = server_socket.accept;
+
+    fprintf(1, 'Client connected\n');
+
+    % get a buffered data input stream from the socket
+    in_stream   = in_socket.getInputStream;
+    d_in_stream = DataInputStream(in_stream);
+
+    pause(0.5);
+    bytes_available = in_stream.available
+    fprintf(1, 'Reading %d bytes\n', bytes_available)
+
+    message = zeros(1, bytes_available, 'uint8');
+    for i = 1:bytes_available
+        message(i) = d_in_stream.readByte;
+    end
+
+    message = char(message)
+
+    % clean up
+    server_socket.close;
+    in_socket.close;
+catch
+    if ~isempty(server_socket)
+        server_socket.close
+    end
+
+    if ~isempty(output_socket)
+        output_socket.close
+    end
+
+    % pause before retrying
+    pause(1);
+end
+end