Buffer Unity SDK ReceiveData when watching GameServer configuration c…

…hanges. (#3872)

sdks/unity/AgonesSdk.cs

@@ -360,17 +360,37 @@ private void OnRequestCompleted(AsyncOperation _)
  private class GameServerHandler : DownloadHandlerScript
  {
  private WatchGameServerCallback callback;
+ private StringBuilder stringBuilder;
+
  public GameServerHandler(WatchGameServerCallback callback)
  {
  this.callback = callback;
+ this.stringBuilder = new StringBuilder();
  }
 
  protected override bool ReceiveData(byte[] data, int dataLength)
  {
- string json = Encoding.UTF8.GetString(data);
- var dictionary = (Dictionary<string, object>) Json.Deserialize(json);
- var gameServer = new GameServer(dictionary["result"] as Dictionary<string, object>);
- this.callback(gameServer);
+ string dataString = Encoding.UTF8.GetString(data);
+ this.stringBuilder.Append(dataString);
+
+ string bufferString = stringBuilder.ToString();
+ int newlineIndex;
+
+ while ((newlineIndex = bufferString.IndexOf('\n')) >= 0)
+ {
+ string fullLine = bufferString.Substring(0, newlineIndex);
+ try
+ {
+ var dictionary = (Dictionary<string, object>) Json.Deserialize(fullLine);
+ var gameServer = new GameServer(dictionary["result"] as Dictionary<string, object>);
+ this.callback(gameServer);
+ }
+ catch (Exception ignore) {} // Ignore parse errors
+ bufferString = bufferString.Substring(newlineIndex + 1);
+ }
+
+ stringBuilder.Clear();
+ stringBuilder.Append(bufferString);
  return true;
  }
  }