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1 package org.lateralnz.demo.view;
2
3 import java.io.IOException  ;
4 import java.io.PrintWriter ;
5 import java.util.HashMap ;
6 import java.util.Locale ;
7
8 import javax.servlet.http.HttpServlet ;
9 import javax.servlet.http.HttpServletRequest ;
10 import javax.servlet.http.HttpServletResponse ;
11 import javax.servlet.RequestDispatcher ;
12 import javax.servlet.http.HttpSession ;
13 import javax.servlet.ServletConfig ;
14 import javax.servlet.ServletException ;
15
16 import org.apache.log4j.Logger;
17
18 import org.lateralnz.demo.ejb.Basic;
19 import org.lateralnz.demo.ejb.BasicHome;
20 import org.lateralnz.common.util.IOUtils;
21 import org.lateralnz.common.util.JNDIUtils;
22 import org.lateralnz.common.util.NumericUtils;
23 import org.lateralnz.common.util.ServletUtils;
24 import org.lateralnz.common.util.StringUtils;
25
26 public class PerfServlet extends HttpServlet {
27
28 private int rawcount;
29 private long rawtime;
30
31 protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException , IOException {
32 PrintWriter out = null;
33 try {
34 out = response.getWriter();
35 out.println("<html><body>\n");
36
37 int threads = 100;
38 int iterations = 100;
39
40 String tmp = request.getParameter("threads");
41 if (!StringUtils.isEmpty(tmp)) {
42 threads = Integer.parseInt(tmp);
43 }
44
45 tmp = request.getParameter("iterations");
46 if (!StringUtils.isEmpty(tmp)) {
47 iterations = Integer.parseInt(tmp);
48 }
49
50 rawtest(out, threads, iterations);
51
52 out.println("</body></html>\n");
53 }
54 finally {
55 if (out != null) {
56 out.flush();
57 IOUtils.close(out);
58 }
59 }
60 }
61
62 protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException , IOException {
63 processRequest(request, response);
64 }
65
66
70 protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException , IOException {
71 processRequest(request, response);
72 }
73
74 public String getServletInfo() {
75 return "Short description";
76 }
77
78 private final void rawtest(final PrintWriter out, final int threads, final int iterations) {
79 out.println("rawtest<br />\n");
80 rawcount = 0;
81
82 Thread [] t = new Thread [threads];
83 for (int i = 0; i < threads; i++) {
84 t[i] = new Thread () {
85 public void run() {
86 Basic ejb = null;
87 try {
88 BasicHome home = (BasicHome)JNDIUtils.getEJBHome("DEMO/Basic", BasicHome.class);
89 ejb = home.create();
90 for (int i = 0; i < iterations; i++) {
91 ejb.getRandom(10000);
92 }
93 }
94 catch (Exception e) {
95 e.printStackTrace();
96 }
97 finally {
98 JNDIUtils.remove(ejb);
99 }
100 rawtestend(out, threads, iterations);
101 }
102 };
103 }
104
105 rawtime = System.currentTimeMillis();
106 for (int i = 0; i < threads; i++) {
107 t[i].start();
108 }
109
110 while (rawcount < threads) {
111 try { Thread.currentThread().sleep(1000); } catch (Exception e) { }
112 }
113 }
114
115 private final void rawtestend(PrintWriter out, int threads, int iterations) {
116 rawcount++;
117 if (rawcount >= threads) {
118 rawtime = System.currentTimeMillis() - rawtime;
119 out.println("rawtest :: " + threads + " threads, " + iterations + " iterations took " + rawtime + "ms<br />\n");
120 out.println("average per call - " + NumericUtils.format(this.getClass().getName(),((double)rawtime / ((double)threads * iterations)), "######0.#######") + "<br />\n");
121 }
122
123 }
124 } |
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