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baltoto client lib
There is a newer version: 4.0.12
package io.baltoro.remote.api;

import javax.servlet.http.HttpServlet;



public class AppServlet extends HttpServlet
{
	
	/*

	private static final long serialVersionUID = 1L;
	static Log log = LogFactory.getLog(AppServlet.class);
	

	
	@Override
	protected void service(HttpServletRequest request, HttpServletResponse response)
	throws ServletException, IOException 
	{
		//super.service(request, response);
		try
		{
			byte[] bytes = process(request, response);
			response.getOutputStream().write(bytes);
			
		} 
		catch (Exception e)
		{
			throw new ServletException(e);
		}
	
	}
	
	
	private byte[] process(HttpServletRequest request, HttpServletResponse response) throws Exception
	{
		
		
		System.out.println("**********************************");
		System.out.println(request.getMethod());
		System.out.println("**********************************");
		String url = request.getRequestURL().toString();
		
		String serverName = request.getServerName();
		String	appName = serverName.substring(0,serverName.indexOf('.'));
		
		String _path = request.getRequestURL().toString();
		
		String	path = request.getRequestURL().toString();
		int index = path.indexOf("/baltoro-app");
		path = path.substring(index+12);
			  
		  
	
		
		String instanceUuid = null;
		Optional cookiesOpt = Optional.ofNullable(request.getCookies());
		
		Cookie[] cookies = cookiesOpt.orElse(new Cookie[0]);
	
		for (int i = 0; i < cookies.length; i++)
		{
			Cookie cookie = cookies[i];
			if(cookie.getName().equals("BLT_INSTANCE_UUID"))
			{
				instanceUuid = cookie.getValue();
				break;
			}
		}
		
	
		SessionInstance sessionInstance = WSSessions.getInstance().getSession(appName,instanceUuid);
		
		if(sessionInstance == null)
		{
			response.addHeader("BALTORO-ERROR", "App Node is not up !! "+path);
			return ("App Node ["+appName+"] is not up !! "+path).getBytes();
		}
		
		
		if(instanceUuid==null || !instanceUuid.equals(sessionInstance.getInstanceUuid()))
		{
			Cookie cookie = new Cookie("BLT_INSTANCE_UUID", sessionInstance.getInstanceUuid());
			response.addCookie(cookie);
		}
		
		
		
		
		WSTO to = new WSTO();
		String uuid = UUID.randomUUID().toString();
		to.uuid = uuid;
		to.appName = appName;
		to.path = path;
		
		RequestContext rc = new RequestContext();
		rc.requestParams = request.getParameterMap();
		
		Enumeration headerNames = request.getHeaderNames();
		Map headerMap = new HashMap(100);
		while (headerNames.hasMoreElements()) 
		{
			String headerName = headerNames.nextElement();
			String headerValue = request.getHeader(headerName);
			
			headerMap.put(headerName, headerValue);
		}
		
		rc.headers = headerMap;
		
		
		HttpSession httpSession = request.getSession(true);
		
		rc.sessionId = httpSession.getId();
		rc.ip = request.getRemoteAddr();
		rc.url = request.getRequestURL().toString();
		
		
		
		to.requestContext = rc;
		
		
		try
		{
		 
			byte[] data = ObjectUtil.toJason(to);
			ByteBuffer buffer = ByteBuffer.wrap(data);
			//sessionInstance.getSession().getAsyncRemote().sendBinary(buffer);
			
			 
			synchronized (sessionInstance.getInstanceUuid().intern())
			{
				sessionInstance.getSession().getBasicRemote().sendBinary(buffer);
			}
			//sessionInstance.getSession().getBasicRemote().sendBinary(buffer);
			
	
			synchronized (uuid.intern())
			{
				uuid.intern().wait(10000);
				
				WSTO responseTO = ResponseMap.getInstance().get(uuid);
				if(responseTO != null)
				{
					System.out.println(" ----> found response "+responseTO);
					if(responseTO.data == null)
					{
						return ("response is null for "+uuid).getBytes();
					}
					return responseTO.data;
				}
				else
				{
					System.out.println(" ----> response not found  "+uuid);
					return ("response not found for uuid "+uuid).getBytes();
				}
			}
			
		} 
		catch (Exception e)
		{
			e.printStackTrace();
			new ServiceException(e);
		}
		

		return path.getBytes();
	}
	*/
}