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1
19
20 package org.netbeans.core.startup;
21
22 import java.util.Stack  ;
23 import java.util.Arrays ;
24
25
30 public class StartLog {
31
32 private static final StartImpl impl;
33 private static final Stack <String > actions = new Stack <String >();
34 private static final Stack <Throwable > places = new Stack <Throwable >();
35 private static final boolean DEBUG_NESTING = Boolean.getBoolean("org.netbeans.log.startup.debug");
37 private static final String logProp;
38 private static final String logFileProp;
39
40 static {
41 logProp = System.getProperty( "org.netbeans.log.startup" ); logFileProp = System.getProperty( "org.netbeans.log.startup.logfile" );
45 if(logProp == null)
46 impl = new StartImpl();
47 else if("print".equals(logProp))
48 impl = new PrintImpl();
49 else if("tests".equals(logProp))
50 impl = new PerformanceTestsImpl();
51 else
52 throw new Error ("Unknown org.netbeans.log.startup value [" + logProp + "], it should be (print or tests) !"); }
54
55
58 public static void logStart( String action ) {
59 if (willLog()) {
60 impl.start(action, System.nanoTime()/1000000);
61 actions.push(action);
62 if (DEBUG_NESTING) {
63 places.push(new Throwable ("logStart called here:")); }
65 }
66 }
67
68
72 public static void logProgress( String note ) {
73 if( willLog() ) impl.progress( note, System.nanoTime()/1000000 );
74 }
75
76
81 public static void logEnd( String action ) {
82 if (willLog()) {
83 String old = actions.empty() ? null : actions.pop();
84 Throwable oldplace = DEBUG_NESTING && !places.empty() ? places.pop() : null;
85 if (!action.equals(old)) {
86 if (oldplace != null) {
89 oldplace.printStackTrace();
90 } else {
91 System.err.println("Either ending too soon, or no info about caller of unmatched start log."); System.err.println("Try running with -J-Dorg.netbeans.log.startup.debug=true"); }
94 Error e = new Error ("StartLog mismatch: ending '" + action + "' but expecting '" + old + "'; rest of stack: " + actions); e.printStackTrace();
99 System.exit(1);
103 }
104 impl.end(action, System.nanoTime()/1000000);
105 }
106 }
107
108 public static boolean willLog() {
109 return impl.willLog();
110 }
111
112
115 public static void logMeasuredStartupTime(long end){
116 if (impl instanceof PerformanceTestsImpl) {
117 ((PerformanceTestsImpl)impl).log("IDE starts t=" + Long.toString(((PerformanceTestsImpl)impl).zero) + "\nIDE is running t=" + Long.toString(end) + "\n");
118 ((PerformanceTestsImpl)impl).writeLogs();
119 }
120 }
121
122
123
124
125 private static class StartImpl {
126 StartImpl() {}
127 void start( String action, long time ) {}
128 void progress( String note, long time ) {}
129 void end( String action, long time ) {}
130 boolean willLog() {
131 return false;
132 }
133 }
134
135 private static class PrintImpl extends StartImpl {
136 PrintImpl() {}
137 long zero = System.nanoTime()/1000000;
138 private Stack <Long > starts = new Stack <Long >();
139 long prog;
140 private int indent = 0;
141
142 synchronized void start( String action, long time ) {
143 starts.push(time);
144 prog=time;
145 System.err.println( getIndentString(indent) + "@" +
146 (time - zero) + " - " + action + " started" );
148 indent += 2;
149 }
150
151 synchronized void progress( String note, long time ) {
152 System.err.println( getIndentString(indent) + "@" +
153 (time - zero) + " - " + note + " dT=" + (time - prog) );
155 prog = time;
156 }
157
158 synchronized void end( String action, long time ) {
159 indent -= 2;
160 long start = starts.pop();
161 prog = time;
162 System.err.println( getIndentString(indent) + "@" +
163 (time - zero) + " - " + action + " finished, took " + (time - start) + "ms" );
166 }
167
168 boolean willLog() {
169 return true;
170 }
171
172 private char[] spaces = new char[0];
173 private String getIndentString( int indent ) {
174 if( spaces.length < indent ) {
175 spaces = new char[Math.max( spaces.length*2, indent+10 )];
176 Arrays.fill( spaces, ' ');
177 }
178 return new String (spaces,0, indent);
179 }
180 }
181
182 private static class PerformanceTestsImpl extends StartImpl {
183 private StringBuffer logs = new StringBuffer ();
184 long zero = System.nanoTime()/1000000;
185 private Stack <Long > starts = new Stack <Long >();
186 long prog;
187 private int indent = 0;
188
189 PerformanceTestsImpl() {}
190
191 synchronized void start( String action, long time ) {
192 starts.push(time);
193 prog=time;
194 log(getIndentString(indent) + "@" +
195 (time - zero) + " - " + action + " started" );
197 indent += 2;
198 }
199
200 synchronized void progress( String note, long time ) {
201 log(getIndentString(indent) + "@" +
202 (time - zero) + " - " + note + " dT=" + (time - prog) );
204 prog = time;
205 }
206
207 synchronized void end( String action, long time ) {
208 indent -= 2;
209 long start = starts.pop();
210 prog = time;
211 log(getIndentString(indent) + "@" +
212 (time - zero) + " - " + action + " finished, took " + (time - start) + "ms" );
215 }
216
217 boolean willLog() {
218 return true;
219 }
220
221 private char[] spaces = new char[0];
222 private String getIndentString( int indent ) {
223 if( spaces.length < indent ) {
224 spaces = new char[Math.max( spaces.length*2, indent+10 )];
225 Arrays.fill( spaces, ' ');
226 }
227 return new String (spaces,0, indent);
228 }
229
230 synchronized void log(String log){
231 logs.append("\n" + log);
232 }
233
234 synchronized void writeLogs(){
235 if(logFileProp!=null){
236 try{
237 java.io.File logFile = new java.io.File (logFileProp);
238 java.io.FileWriter writer = new java.io.FileWriter (logFile);
239 writer.write(logs.toString());
240 writer.close();
241 }catch (Exception exc){
242 System.err.println("EXCEPTION rises during startup logging:");
243 exc.printStackTrace(System.err);
244 }
245 } else
246 throw new IllegalStateException ("You are trying to log startup logs to unexisting file. You have to set property org.netbeans.log.startup.logfile.");
247 }
248
249 }
250 }
251 |
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