VideoServlet.java

package com.cellbots.cellserv.server;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.httpclient.HttpStatus;

import com.cellbots.CellbotProtos;

public class VideoServlet extends HttpServlet
{

  private static final long serialVersionUID = -1542374763947377440L;

  public String getServletInfo()
  {
    return "Servlet for handeling communication with phone";
  }

  public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
  {
    String botID = "";
    if(req.getParameter("BOTID") != null)
    {
      botID = req.getParameter("BOTID");
    }
    
    if (StateHolder.getInstance(botID).newVideoFrameAvilble())
    {
      res.getOutputStream().write(StateHolder.getInstance(botID).getVideoFrame());
    }
    else
    {
      res.setStatus(HttpStatus.SC_NOT_MODIFIED);
    }
  }

  public void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
  {
    // res.setContentType("text/html");
    try
    {
      CellbotProtos.AudioVideoFrame frame = CellbotProtos.AudioVideoFrame.parseFrom(req.getInputStream());
      String botID = "";
      if(frame.hasBotID())
      {
        botID = frame.getBotID();
      }
      
      StateHolder.getInstance(botID).setVideoFrame(frame);
    }
    catch (IOException e)
    {
      e.printStackTrace();
    }
  }
}