Using websockets through the simple websockets for webgl asset, can connect but cant transmit messages.

Hey all,

Just having a problem on my mac trying to send strings over web sockets using this https://www.assetstore.unity3d.com/en/#!/content/38367

Lots of adapted code below from here mainly http://www.codepool.biz/how-to-implement-a-java-websocket-server-for-image-transmission-with-jetty.html and the web socket sharp echotest example.

I can connect but there is no sign of strings in my Jetty server console window (on a ws server running in java(eclipse)).

I’m basically just trying to send a “1” to my server over a websocket connection with the unity editor (5) at the moment, to prompt the server to start sending PNG files encoded as byte arrays, so I can put them back together in a C# script and apply them to a texture.

this is the script, I want to attach it to a game object like a plane or a cube and display the updating images sent over the web socket from my Jetty server, but at the moment I'm just stuck trying to send a message and see it pop up in my eclipse console window.

 using UnityEngine;
 using System.Collections;
 using System;
 
 public class socketTexture : MonoBehaviour {
 
     // Use this for initialization
     IEnumerator Start () {
         WebSocket w = new WebSocket(new Uri("ws://192.168.0.149:8080/"));
         yield return StartCoroutine(w.Connect());
         Debug.Log ("Connected");
         w.SendString("I'm client");
         w.SendString("1");
         while (true)
         {
             byte[] reply = w.Recv();
             if (reply != null)
             {
                 Debug.Log ("Received: "+reply);
                 var tex = new Texture2D(300, 300, TextureFormat.PVRTC_RGBA4, false);
                 // Load data into the texture and upload it to the GPU.
                 tex.LoadRawTextureData(reply);
                 tex.Apply();
                 // Assign texture to renderer's material.
                 GetComponent<Renderer>().material.mainTexture = tex;
             }
             if (w.Error != null)
             {
                 Debug.LogError ("Error: "+w.Error);
                 break;
             }
             yield return 0;
         }
         w.Close();
     }
 }

...And the relevant code from the jetty server, but this works, I've tested it with some javascript and I can load the PNGs back into the browser window, so I'm definitely doing something wrong in Unity

 @OnWebSocketMessage  //part request from websocket client (remote browser)
     public void onMessage( String message) {
         System.out.println("message");
         if (message.equals("1") || message.equals("2") || message.equals("3") || message.equals("4") ) {
             System.out.println("Part " + message + " joined");  
             System.out.println( UIMain.usersPath + "/" + message + ".png" );
             final String testVar = ( UIMain.usersPath + "/" + message + ".png" );
             task = new FileWatcher( new File(testVar) ) {
                 protected void onChange( File file ) {
                     // here we code the action on a change
                     System.out.println( "File "+ file.getName() +" has changed!" );
                     try {            
                         File f = new File(testVar);
                         BufferedImage bi = ImageIO.read(f);
                         ByteArrayOutputStream out = new ByteArrayOutputStream();
                         ImageIO.write(bi, "png", out);
                         ByteBuffer byteBuffer = ByteBuffer.wrap(out.toByteArray());
                         mSession.getRemote().sendBytes(byteBuffer);
                         out.close();
                         byteBuffer.clear();
                         }
                            catch (IOException e) {
                                e.printStackTrace();
                         }    
             }
         };
         Timer timer1 = new Timer(); {
         timer1.schedule(task , new Date(), 40 );
         }
         
         }
         else if (message.equals( "0")) {
             zerocounter = zerocounter + 1;
             if (zerocounter >= 2) {
                 task.cancel();
             }
         }
         else if (message.equals( "Hi there, client here")) {
             System.out.println( "Client says: " + message );
         }
     }

Cheers in advance. Benedict