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package controller;
 2
 3 import java.util.Map;
 4 import javax.servlet.http.HttpServletRequest;
 5 import javax.servlet.http.HttpServletResponse;
 6 import org.springframework.web.servlet.ModelAndView;
 7 import org.springframework.web.servlet.View;
 8 import org.springframework.web.servlet.mvc.AbstractController;
 9
10 /**
11  *
12  * @author josh
13  */
14 public class SlowController extends AbstractController {
15
16     public SlowController() {
17     }
18
19     protected ModelAndView handleRequestInternal(
20             HttpServletRequest request,
21             HttpServletResponse response) throws Exception {
22
23         long start = System.currentTimeMillis();
24         Thread.sleep(100); //not picked up by profiler
25         double[] b = new double[100000];
26         for (int i = 0; i < b.length; i++){
27             b[i] = (Math.pow(i, 4) + Math.pow(i, 3) + Math.pow(i, 2));
28         } //picked up by profiler - around 80ms on my MacBook
29         long stop = System.currentTimeMillis();
30
31         long executionDelay = stop - start;
32         request.setAttribute("execDelay", executionDelay);
33
34         return new ModelAndView(new View(){
35             public String getContentType() {return "text/html";}
36             public void render(Map map, HttpServletRequest request, HttpServletResponse response) throws Exception {
37                 response.getWriter().println("<h1>Slow Controller returned! " + request.getAttribute("execDelay") + "</h1>");
38             }
39         });
40     }
41
42 }
43