Revision 5607
Added by berkley over 13 years ago
src/edu/ucsb/nceas/metacat/MetacatProfiler.java | ||
---|---|---|
1 |
/** |
|
2 |
* '$RCSfile$' |
|
3 |
* Copyright: 2010 Regents of the University of California and the |
|
4 |
* National Center for Ecological Analysis and Synthesis |
|
5 |
* |
|
6 |
* '$Author: $' |
|
7 |
* '$Date: 2009-06-13 15:28:13 +0300 $' |
|
8 |
* |
|
9 |
* This program is free software; you can redistribute it and/or modify |
|
10 |
* it under the terms of the GNU General Public License as published by |
|
11 |
* the Free Software Foundation; either version 2 of the License, or |
|
12 |
* (at your option) any later version. |
|
13 |
* |
|
14 |
* This program is distributed in the hope that it will be useful, |
|
15 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
16 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
17 |
* GNU General Public License for more details. |
|
18 |
* |
|
19 |
* You should have received a copy of the GNU General Public License |
|
20 |
* along with this program; if not, write to the Free Software |
|
21 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
|
22 |
*/ |
|
23 |
package edu.ucsb.nceas.metacat; |
|
24 |
|
|
25 |
import java.io.File; |
|
26 |
import java.io.FileWriter; |
|
27 |
import java.io.IOException; |
|
28 |
import java.util.Date; |
|
29 |
import java.util.Enumeration; |
|
30 |
import java.util.Hashtable; |
|
31 |
import java.util.Vector; |
|
32 |
|
|
33 |
/** |
|
34 |
* @author berkley |
|
35 |
* Singleton to track metacat profile stats and print them to a CSV file |
|
36 |
*/ |
|
37 |
public class MetacatProfiler |
|
38 |
{ |
|
39 |
private static MetacatProfiler profiler = null; |
|
40 |
|
|
41 |
private Hashtable<String,Profile> profiles; |
|
42 |
private String log = ""; |
|
43 |
private int callOrderCount = 0; |
|
44 |
private boolean aggregateMethodCalls = true; |
|
45 |
|
|
46 |
/** |
|
47 |
* private constructor |
|
48 |
*/ |
|
49 |
private MetacatProfiler() |
|
50 |
{ |
|
51 |
profiles = new Hashtable<String,Profile>(); |
|
52 |
} |
|
53 |
|
|
54 |
/** |
|
55 |
* get a singleton instance |
|
56 |
* @return |
|
57 |
*/ |
|
58 |
public static MetacatProfiler getInstance() |
|
59 |
{ |
|
60 |
if(profiler == null) |
|
61 |
{ |
|
62 |
profiler = new MetacatProfiler(); |
|
63 |
} |
|
64 |
|
|
65 |
return profiler; |
|
66 |
} |
|
67 |
|
|
68 |
/** |
|
69 |
* return a hashtable of the profiles |
|
70 |
* @return |
|
71 |
*/ |
|
72 |
public Hashtable<String, Profile> getProfiles() |
|
73 |
{ |
|
74 |
return profiles; |
|
75 |
} |
|
76 |
|
|
77 |
/** |
|
78 |
* reset all times in the singleton |
|
79 |
*/ |
|
80 |
public void reset() |
|
81 |
{ |
|
82 |
profiles = new Hashtable<String, Profile>(); |
|
83 |
log = ""; |
|
84 |
} |
|
85 |
|
|
86 |
/** |
|
87 |
* print a message to the log in real-time |
|
88 |
* @param msg |
|
89 |
*/ |
|
90 |
public void printLogMsg(String msg) |
|
91 |
{ |
|
92 |
log += "//" + new Date().toString() + ":" + msg + "\n"; |
|
93 |
} |
|
94 |
|
|
95 |
/** |
|
96 |
* start the timing on a profile |
|
97 |
* @param profileName |
|
98 |
*/ |
|
99 |
public void startTime(String profileName) |
|
100 |
{ |
|
101 |
long start = new Date().getTime(); |
|
102 |
|
|
103 |
Profile p = profiles.get(profileName); |
|
104 |
if(!aggregateMethodCalls || p == null) |
|
105 |
{ |
|
106 |
p = new Profile(); |
|
107 |
p.name = profileName; |
|
108 |
p.start = start; |
|
109 |
p.methodcalls = 0; |
|
110 |
p.total = 0; |
|
111 |
p.callorder = callOrderCount; |
|
112 |
callOrderCount++; |
|
113 |
profiles.put(profileName, p); |
|
114 |
} |
|
115 |
else |
|
116 |
{ |
|
117 |
p.start = start; |
|
118 |
profiles.put(profileName, p); |
|
119 |
} |
|
120 |
} |
|
121 |
|
|
122 |
/** |
|
123 |
* stop the timing on a profile |
|
124 |
* @param profileName |
|
125 |
*/ |
|
126 |
public void stopTime(String profileName) |
|
127 |
{ |
|
128 |
//System.out.println("\n==================stop=================="); |
|
129 |
long stop = new Date().getTime(); |
|
130 |
boolean found = false; |
|
131 |
Profile p = profiles.get(profileName); |
|
132 |
|
|
133 |
if(p == null) |
|
134 |
{ |
|
135 |
System.out.println("WARNING: profile " + profileName + " not registered with MetacatProfiler"); |
|
136 |
} |
|
137 |
else |
|
138 |
{ |
|
139 |
p.stop = stop; |
|
140 |
} |
|
141 |
|
|
142 |
if(!aggregateMethodCalls) |
|
143 |
{ |
|
144 |
log += p.toString(); |
|
145 |
} |
|
146 |
else |
|
147 |
{ |
|
148 |
if(p != null) |
|
149 |
{ |
|
150 |
//System.out.println("p: " + p.toString()); |
|
151 |
p.total += p.stop - p.start; |
|
152 |
p.methodcalls = p.methodcalls + 1; |
|
153 |
//System.out.println("newp: " + p.toString()); |
|
154 |
profiles.put(profileName, p); |
|
155 |
} |
|
156 |
else |
|
157 |
{ |
|
158 |
p = new Profile(); |
|
159 |
p.methodcalls = 1; |
|
160 |
profiles.put(profileName, p); |
|
161 |
} |
|
162 |
} |
|
163 |
} |
|
164 |
|
|
165 |
/** |
|
166 |
* sort the profiles by "callorder", "callcount" or "total" |
|
167 |
* @param sortKey |
|
168 |
* @return |
|
169 |
*/ |
|
170 |
public Profile[] sortProfiles(String sortKey) |
|
171 |
{ |
|
172 |
Vector<Profile> v = new Vector<Profile>(); |
|
173 |
Enumeration keys = profiles.keys(); |
|
174 |
Profile[] pArr = new Profile[profiles.size()]; |
|
175 |
int i = 0; |
|
176 |
while(keys.hasMoreElements()) |
|
177 |
{ |
|
178 |
String key = (String)keys.nextElement(); |
|
179 |
pArr[i] = profiles.get(key); |
|
180 |
i++; |
|
181 |
} |
|
182 |
|
|
183 |
int n = profiles.size(); |
|
184 |
for (int pass=1; pass < n; pass++) { // count how many times |
|
185 |
// This next loop becomes shorter and shorter |
|
186 |
for (i=0; i < n-pass; i++) { |
|
187 |
long x = 0; |
|
188 |
long y = 0; |
|
189 |
if(sortKey.equals("callorder")) |
|
190 |
{ |
|
191 |
x = pArr[i].callorder; |
|
192 |
y = pArr[i+1].callorder; |
|
193 |
} |
|
194 |
else if(sortKey.equals("callcount")) |
|
195 |
{ |
|
196 |
x = pArr[i].methodcalls; |
|
197 |
y = pArr[i+1].methodcalls; |
|
198 |
} |
|
199 |
else |
|
200 |
{ //default by total |
|
201 |
x = pArr[i].total; |
|
202 |
y = pArr[i+1].total; |
|
203 |
} |
|
204 |
|
|
205 |
if (x < y) { |
|
206 |
// exchange elements |
|
207 |
Profile temp = pArr[i]; |
|
208 |
pArr[i] = pArr[i+1]; |
|
209 |
pArr[i+1] = temp; |
|
210 |
} |
|
211 |
} |
|
212 |
} |
|
213 |
|
|
214 |
return pArr; |
|
215 |
} |
|
216 |
|
|
217 |
/** |
|
218 |
* print a sorted CSV file. The sortKey can be "callorder", "callcount" or "total" |
|
219 |
* @param f |
|
220 |
* @param sortKey |
|
221 |
* @throws IOException |
|
222 |
*/ |
|
223 |
public void printSortedCSV(File f, String sortKey) throws IOException |
|
224 |
{ |
|
225 |
Profile[] p = sortProfiles(sortKey); |
|
226 |
String log2 = ""; |
|
227 |
log2 = "\n" + log + "\n" + "=======profile entries sorted by " + sortKey + "========\n"; |
|
228 |
for(int i=0; i<p.length; i++) |
|
229 |
{ |
|
230 |
log2 += p[i].toString() + "\n"; |
|
231 |
} |
|
232 |
log2 += "=======end profile entries========"; |
|
233 |
System.out.println(log2); |
|
234 |
if(f != null) |
|
235 |
{ |
|
236 |
FileWriter fw = new FileWriter(f, true); |
|
237 |
fw.write(log2); |
|
238 |
fw.flush(); |
|
239 |
fw.close(); |
|
240 |
} |
|
241 |
} |
|
242 |
|
|
243 |
/** |
|
244 |
* print the CSV file with no sorting |
|
245 |
* @param f |
|
246 |
* @throws IOException |
|
247 |
*/ |
|
248 |
public void printCSV(File f) throws IOException |
|
249 |
{ |
|
250 |
if(aggregateMethodCalls) |
|
251 |
{ |
|
252 |
Enumeration keys = profiles.keys(); |
|
253 |
while(keys.hasMoreElements()) |
|
254 |
{ |
|
255 |
String key = (String)keys.nextElement(); |
|
256 |
Profile p = profiles.get(key); |
|
257 |
log += p.toString(); |
|
258 |
} |
|
259 |
} |
|
260 |
|
|
261 |
FileWriter fw = new FileWriter(f, true); |
|
262 |
fw.write(log); |
|
263 |
fw.flush(); |
|
264 |
fw.close(); |
|
265 |
} |
|
266 |
|
|
267 |
/** |
|
268 |
* container class for profile information |
|
269 |
* @author berkley |
|
270 |
* |
|
271 |
*/ |
|
272 |
public class Profile |
|
273 |
{ |
|
274 |
public long start; |
|
275 |
public long stop; |
|
276 |
public long total = -1; |
|
277 |
public long methodcalls; |
|
278 |
public long callorder; |
|
279 |
public String name; |
|
280 |
|
|
281 |
public String toString() |
|
282 |
{ |
|
283 |
if(total == -1) |
|
284 |
{ |
|
285 |
total = stop - start; |
|
286 |
} |
|
287 |
return "name: " + name + ", calls: " + methodcalls + ", totaltime: " + total; |
|
288 |
} |
|
289 |
} |
|
290 |
} |
Also available in: Unified diff
profiler code for metacat