Class SubmitQueryServlet

SubmitQueryServlet

public class SubmitQueryServlet

The SubmitQueryServlet is no longer in use by the BioQuery application and does not need to be installed! This servlet received commands and Query objects from the client in order to submit Querys from the server, rather than directly from the client. This makes the server a QuerySubmitter proxy. This can bypass security restrictions if the client is implemented in Java Web Start or as an applet, and may help with Clients behind a total (HTTP-blocking) firewall. If the Clients have internet access, this Servlet is not needed since all communications are over HTTP.

The SubmitQueryServlet class has the sole responsibility of waiting for a client to request the submission of a Query. The client does this by sending an httpPost request to the servlet that contains a serialized Query object. The SubmitQueryServlet instantiates the Query, submits the Query (via it's QuerySubmitter object) and streams the response back to the client as an httpResponse.

Author:

James Brundege

Constructor Summary

SubmitQueryServlet()

Method Summary

void	doGet(HttpServletRequest request, HttpServletResponse response) doGet method for testing purposes only.
void	doPost(HttpServletRequest request, HttpServletResponse response) Overriden doPost method accepts a serialized Query object, instantiates it, submits it to it's database, and returns the results back to the client as the Response.

Constructor Detail

SubmitQueryServlet

public SubmitQueryServlet()

Method Detail

doGet

public void doGet(HttpServletRequest request,
                  HttpServletResponse response)
           throws ServletException,
                  java.io.IOException

doGet method for testing purposes only. Not used by the program.

doPost

public void doPost(HttpServletRequest request,
                   HttpServletResponse response)
            throws ServletException,
                   java.io.IOException

Overriden doPost method accepts a serialized Query object, instantiates it, submits it to it's database, and returns the results back to the client as the Response.