Apache on Win32 and server push

[Dimitri I. Rakitine]

The following example from O'Reilly Servlets book doesnt work
with Apache running on WindowsNT (its not strictly JServ problem
because it doesnt work with Apache-WebSphere on Win32 as well):

Any suggestions on how to make server push to work on Win32?

import java.awt.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class PushTest extends HttpServlet {
 public void doGet(HttpServletRequest req, HttpServletResponse res)
 throws ServletException, IOException {
 
 ServletOutputStream out = res.getOutputStream(); // binary output
 
 MultipartResponse multi = new MultipartResponse(res);

//
// with Apache-JServ on Unix browser will display countdown, 
// and when Apache-JServ runs on Win32 browser will only
// display 19... after 20 seconds.
//
 for(int i = 0; i < 20; i++) {
     multi.startResponse("text/plain");
     out.println(i + "...");
     multi.endResponse();
     try { Thread.sleep(1000); } catch(InterruptedException e) {}
 }
 multi.finish();
    }
}

class MultipartResponse {
    HttpServletResponse res;
    ServletOutputStream out;
    boolean endedLastResponse = true;
    
    public MultipartResponse(HttpServletResponse response) throws
IOException {
 res = response;
 out = res.getOutputStream();
 
 res.setContentType("multipart/x-mixed-replace;boundary=End");
 out.println();
 out.println("--End");
    }
    
    public void startResponse(String contentType) throws IOException {
 if(!endedLastResponse) {
     endResponse();
 }
 out.println("Content-Type: " + contentType);
 out.println();
 endedLastResponse = false;
    }
    
    public void endResponse() throws IOException {
 out.println();
 out.println("--End");
 out.flush();
 endedLastResponse = true;
    }
    
    public void finish() throws IOException {
 out.println("--End--");
 out.flush();
    }
}




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