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1
28
29
30 package com.caucho.tools.profiler;
31
32 import com.caucho.util.CharBuffer;
33 import com.caucho.util.L10N;
34 import com.caucho.util.Sprintf;
35 import com.caucho.vfs.XmlWriter;
36
37 import javax.servlet.ServletException  ;
38 import javax.servlet.http.HttpServlet ;
39 import javax.servlet.http.HttpServletRequest ;
40 import javax.servlet.http.HttpServletResponse ;
41 import java.io.IOException ;
42 import java.util.Collection ;
43
44
47 public class ProfilerServlet
48 extends HttpServlet
49 {
50 private static final L10N L = new L10N(ProfilerServlet.class);
51
52 private final ProfilerManager _profilerManager = ProfilerManager.getLocal();
54
55 public ProfilerManager createProfiler()
56 {
57 return _profilerManager;
58 }
59
60 public void init()
61 {
62 }
63
64 protected void doGet(HttpServletRequest req, HttpServletResponse res)
65 throws ServletException , IOException
66 {
67 handleRequest(req, res);
68 handleResponse(req, res);
69 }
70
71 protected void doPost(HttpServletRequest req, HttpServletResponse res)
72 throws ServletException , IOException
73 {
74 handleRequest(req, res);
75 handleResponse(req, res);
76 }
77
78 protected void handleRequest(HttpServletRequest request,
79 HttpServletResponse response)
80 throws ServletException , IOException
81 {
82 }
83
84 protected void handleResponse(HttpServletRequest request,
85 HttpServletResponse response)
86 throws ServletException , IOException
87 {
88 String format = request.getParameter("format");
89 boolean isXml = "xml".equals(format);
90
91 response.setContentType("text/html");
92
93 response.setHeader("Cache-Control", "no-cache, post-check=0, pre-check=0");
94 response.setHeader("Pragma", "no-cache");
95 response.setHeader("Expires", "Thu, 01 Dec 1994 16:00:00 GMT");
96
97 if (isXml)
98 writeXml(request, response);
99 else
100 writeHtml(request, response);
101 }
102
103 protected void writeHtml(HttpServletRequest request,
104 HttpServletResponse response)
105 throws ServletException , IOException
106 {
107 response.setContentType("text/html");
108
109 String sort = request.getParameter("sort");
110
111 ProfilerNodeComparator comparator;
112
113 if ("count".equals(sort))
114 comparator = new CountComparator();
115 else
116 comparator = new TimeComparator();
117
118 comparator.setDescending(true);
119
120 XmlWriter out = new XmlWriter(response.getWriter());
121
122 out.setStrategy(XmlWriter.HTML);
123 out.setIndenting(false);
124
125 out.println(
126 "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">");
127
128 String contextPath = request.getContextPath();
129
130 if (contextPath == null || contextPath.length() == 0)
131 contextPath = "/";
132
133 String title = L.l("Profiling Results for {0}", contextPath);
134
135 out.startElement("html");
136
137 out.startElement("head");
138 out.writeElement("title", title);
139
140 out.startElement("style");
141 out.writeAttribute("type", "text/css");
142
143 out.println(
144 "h1 { background: #ccddff; margin : 0 -0.5em 0.25em -0.25em; padding: 0.25em 0.25em; }");
145 out.println(
146 "h2 { background: #ccddff; padding: 0.25em 0.5em; margin : 0.5em -0.5em; }");
147 out.println("table { border-collapse : collapse; }");
148 out.println("th { background : #c78ae6; border-left : 1px; border-right : 1px}");
149 out.println("tr { border-bottom : 1px dotted; }");
150 out.println(".number { text-align : right; }");
151 out.println("table table tr { border-bottom : none; }");
152
153 out.endElement("style");
154
155 out.endElement("head");
156
157 out.startElement("body");
158 out.writeElement("h1", title);
159
160 out.startElement("table");
161 out.writeAttribute("border", 0);
162
163 out.startElement("tr");
164
165 out.writeLineElement("th", L.l("Name"));
166
167 out.writeLineElement("th", L.l("Average Time"));
168 out.writeLineElement("th", L.l("Min Time"));
169 out.writeLineElement("th", L.l("Max Time"));
170 out.writeLineElement("th", L.l("Total Time"));
171
172 out.writeLineElement("th", L.l("Invocation Count"));
173
174 out.endElement("tr");
175
176 Collection <ProfilerNode> children
177 = _profilerManager.getChildProfilerNodes(null, comparator);
178
179 displayChildren(children, comparator, out, 0);
180
181 out.endElement("table");
182
183 out.endElement("body");
184
185 out.endElement("html");
186 }
187
188 private void display(ProfilerNode node,
189 ProfilerNodeComparator comparator,
190 XmlWriter out,
191 int depth)
192 {
193 Collection <ProfilerNode> children
194 = _profilerManager.getChildProfilerNodes(node, comparator);
195
196 long thisTime = node.getTime();
197 long minTime = node.getMinTime();
198 long maxTime = node.getMaxTime();
199
200 long childrenTime = 0;
201
202 for (ProfilerNode child : children) {
203 childrenTime += child.getTime();
204 }
205
206 long totalTime = childrenTime + thisTime;
207
208 long invocationCount = node.getInvocationCount();
209 long averageThisTime;
210 long averageTotalTime;
211 long averageChildrenTime;
212
213 if (invocationCount <= 0) {
214 averageThisTime = -1;
215 averageTotalTime = -1;
216 averageChildrenTime = -1;
217 }
218 else {
219 averageThisTime = thisTime / invocationCount;
220 averageTotalTime = totalTime / invocationCount;
221 averageChildrenTime = childrenTime / invocationCount;
222 }
223
224 out.startElement("tr");
225
226 out.writeAttribute("class", "level" + depth);
227
228
230 out.startLineElement("td");
231
232 out.startElement("table");
233 out.startElement("tr");
234
235 out.startLineElement("td");
236
237 if (depth > 0) {
238 for (int i = depth; i > 0; i--) {
239 out.write(" ");
240 out.write(" ");
241 }
242
243 out.write("→");
244 }
245 out.endLineElement("td");
246
247 out.startLineElement("td");
248 out.writeAttribute("class", "text");
249 out.writeText(node.getName());
250 out.endLineElement("td");
251
252 out.endElement("tr");
253 out.endElement("table");
254
255 out.endLineElement("td");
256
257 out.startLineElement("td");
258 out.writeAttribute("class", "number");
259 if (averageThisTime < 0)
260 out.write(" ");
261 else {
262 String averageTimeString = createTimeString(averageTotalTime, averageThisTime, averageChildrenTime);
263 out.writeAttribute("title", averageTimeString);
264 printTime(out, averageTotalTime);
265 }
266
267 out.endLineElement("td");
268
269 out.startLineElement("td");
270 out.writeAttribute("class", "number");
271 if (minTime < Long.MAX_VALUE)
272 printTime(out, minTime);
273 else
274 out.print(" ");
275 out.endLineElement("td");
276
277 out.startLineElement("td");
278 out.writeAttribute("class", "number");
279 if (Long.MIN_VALUE < maxTime)
280 printTime(out, maxTime);
281 else
282 out.print(" ");
283 out.endLineElement("td");
284
285 out.startLineElement("td");
286 out.writeAttribute("class", "number");
287 String timeString = createTimeString(totalTime, thisTime, childrenTime);
288 out.writeAttribute("title", timeString);
289 printTime(out, totalTime);
290 out.endLineElement("td");
291
292 out.startLineElement("td");
293 out.writeAttribute("class", "number");
294 out.print(invocationCount);
295 out.endLineElement("td");
296
297 out.endElement("tr");
298
299
301 displayChildren(children, comparator, out, depth + 1);
302 }
303
304 protected void writeXml(HttpServletRequest request,
305 HttpServletResponse response)
306 throws ServletException , IOException
307 {
308 ProfilerNodeComparator comparator = new TimeComparator();
309
310 comparator.setDescending(true);
311
312 XmlWriter out = new XmlWriter(response.getWriter());
313
314 out.setStrategy(XmlWriter.XML);
315 out.setIndenting(false);
316
317 String contextPath = request.getContextPath();
318
319 if (contextPath == null || contextPath.length() == 0)
320 contextPath = "/";
321
322 out.startElement("profile");
323 out.writeLineElement("name", contextPath);
324
325 Collection <ProfilerNode> children
326 = _profilerManager.getChildProfilerNodes(null, comparator);
327
328 for (ProfilerNode child : children)
329 displayXml(child, comparator, out);
330
331 out.endElement("profile");
332 }
333
334 private void displayXml(ProfilerNode node,
335 ProfilerNodeComparator comparator,
336 XmlWriter out)
337 {
338 Collection <ProfilerNode> children
339 = _profilerManager.getChildProfilerNodes(node, comparator);
340
341 long thisTime = node.getTime();
342 long minTime = node.getMinTime();
343 long maxTime = node.getMaxTime();
344
345 long childrenTime = 0;
346
347 for (ProfilerNode child : children) {
348 childrenTime += child.getTime();
349 }
350
351 long totalTime = childrenTime + thisTime;
352
353 long invocationCount = node.getInvocationCount();
354
355 out.startBlockElement("node");
356 out.writeLineElement("name", node.getName());
357
358 if (minTime < Long.MAX_VALUE)
359 out.writeLineElement("min-time", String.valueOf(minTime));
360 else
361 out.writeLineElement("min-time", "0");
362 if (maxTime >= 0)
363 out.writeLineElement("max-time", String.valueOf(maxTime));
364 else
365 out.writeLineElement("max-time", "0");
366 out.writeLineElement("time", String.valueOf(thisTime));
367 out.writeLineElement("total-time", String.valueOf(totalTime));
368 out.writeLineElement("children-time", String.valueOf(childrenTime));
369 out.writeLineElement("count", String.valueOf(invocationCount));
370
371 for (ProfilerNode child : children)
372 displayXml(child, comparator, out);
373
374 out.endBlockElement("node");
375 }
376
377 private String createTimeString(long totalTime,
378 long thisTime,
379 long childrenTime)
380 {
381 CharBuffer cb = new CharBuffer();
382
383 cb.append("totalTime=");
384 formatTime(cb, totalTime);
385
386 cb.append(" thisTime=");
387 formatTime(cb, thisTime);
388
389 cb.append(" childrenTime=");
390 formatTime(cb, childrenTime);
391
392 return cb.toString();
393 }
394
395 private void displayChildren(Collection <ProfilerNode> children,
396 ProfilerNodeComparator comparator,
397 XmlWriter out,
398 int depth)
399 {
400
402 for (ProfilerNode child : children)
403 display(child, comparator, out, depth);
404 }
405
406 private void printTime(XmlWriter out, long time)
407 {
408 CharBuffer cb = new CharBuffer();
409 formatTime(cb, time);
410 out.writeText(cb.toString());
411 }
412
413 private void formatTime(CharBuffer cb, long nanoseconds)
414 {
415 long milliseconds = nanoseconds / 1000000;
416
417 long minutes = milliseconds / 1000 / 60;
418
419 if (minutes > 0) {
420 Sprintf.sprintf(cb, "%d:", minutes);
421 milliseconds -= minutes * 60 * 1000;
422 }
423
424 long seconds = milliseconds / 1000;
425
426 if (minutes > 0)
427 Sprintf.sprintf(cb, "%02d.", seconds);
428 else
429 Sprintf.sprintf(cb, "%d.", seconds);
430
431 milliseconds -= seconds * 1000;
432
433 Sprintf.sprintf(cb, "%03d", milliseconds);
434 }
435 }
436 |
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