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1 package com.quadcap.util;
2
3
40
41 import java.io.File  ;
42 import java.io.FileOutputStream ;
43 import java.io.IOException ;
44 import java.io.PrintStream ;
45
46 import java.util.Date ;
47 import java.util.Hashtable ;
48
49 import java.sql.SQLException ;
50
51 import java.text.SimpleDateFormat ;
52
53 import com.quadcap.sql.file.DatafileException;
54
55
60 public class Debug {
61 static public PrintStream debugStream = System.out;
62 static public int printLevel = 0;
63
64 private static String debugFileName = null;
65 private static FileOutputStream debugFileStream = null;
66
67 static Hashtable debugMap = new Hashtable ();
68 static NullSecurityManager sm = null;
69
70 static public final int debugOff = 0;
71 static public final int debugSome = 1;
72 static public final int debugAll = 3;
73 static public final int debugPackage = 4;
74
75 static public int debugMode = debugAll;
76
77 static public final int debugNoTime = 0;
78 static public final int debugElap = 1;
79 static public final int debugInterval = 2;
80 static public final int debugShowTime = 3;
81
82 static public int debugTime = debugShowTime;
83
84 static public long start = new Date ().getTime();
85 static public long last = start;
86
87 static SimpleDateFormat sdf =
88 new SimpleDateFormat ("yyyy-MM-dd HH:mm:ss.SSS");
89
90
91
95
96
100
101
121 static {
122 try {
124 ConfigString file = ConfigString.find("debug.file", "stderr");
125 if (file != null) {
126 setLogFile(file.toString());
127 }
128 ConfigNumber level = ConfigNumber.find("debug.level", "0");
129 if (level != null) {
130 printLevel = level.intValue();
131 }
132 } catch (IOException e) {
133 Debug.print(e);
134 }
135 }
136
137 static public Class [] getClassContext() {
138 return sm.pubGetClassContext();
139 }
140
141 static public void setDebugLevel(String name, String level) {
142 debugMap.put(name, level);
143 }
144
145 static public void print(Throwable e) {
146 if (e == null) return;
147 if (!(e instanceof SQLException )) {
148 Debug.println(0, 2, e.getClass().getName());
149 }
150 debugStream.print(hdr());
151 e.printStackTrace(debugStream);
152 if (e instanceof SQLException ) {
153 printSQLException((SQLException )e);
154 } else if (e.getCause() != null) {
155 Debug.println("Cause of this exception:");
156 print(e.getCause());
157 }
158 }
159
160 static void printSQLException(SQLException e) {
161 StringBuffer sb = new StringBuffer (e.toString());
162 int idx;
163 while ((idx = sb.toString().indexOf("Exception:")) >= 0) {
164 sb.setCharAt(idx + 9, ',');
165 }
166 Debug.println(0, 3, sb.toString() + ", SQLState = " + e.getSQLState() +
167 ", errorCode = " + e.getErrorCode());
168 SQLException next = e.getNextException();
169 if (next != null) {
170 Debug.println("Next SQL Exception:");
171 printSQLException(next);
172 } else if (e.getCause() != null) {
173 Debug.println("Cause of this exception:");
174 print(e);
175 }
176 }
177
178 static public void println(String s) {
179 println(0, 1, s);
180 }
181
182 static public String getInterval() {
183 String ret = null;
184 Date d = new Date ();
185 long now = d.getTime();
186
187 switch (debugTime) {
188 case debugInterval:
189 ret = "" + (now - last);
190 last = now;
191 break;
192 case debugElap:
193 ret = "" + (now - start);
194 break;
195 case debugShowTime:
196 ret = "" + sdf.format(d);
197 break;
198 }
199 return ret;
200 }
201
202
211 static public void setLogFile(String name) throws IOException {
212 if (name.equals("stdout")) {
213 if (debugFileStream != null) {
214 debugFileStream.close();
215 debugFileStream = null;
216 }
217 debugStream = System.out;
218 } else if (name.equals("stderr")) {
219 if (debugFileStream != null) {
220 debugFileStream.close();
221 debugFileStream = null;
222 }
223 debugStream = System.err;
224 } else {
225 boolean append = name.startsWith("append:");
226 if (append) name = name.substring(7).trim();
227 name = new File (name).getAbsolutePath();
228 if (debugFileName == null || !name.equals(debugFileName)) {
229 debugFileName = name;
230 if (debugFileStream != null) {
231 debugFileStream.close();
232 debugFileStream = null;
233 }
234 debugFileStream = new FileOutputStream (name, append);
235 debugStream = new PrintStream (debugFileStream);
236 println("---- [Debug started]");
237 }
238 }
239 }
240
241
247 static public void setLogLevel(int printLevel) {
248 if (printLevel != Debug.printLevel) {
249 Debug.println(0, "Changing log level from " + Debug.printLevel +
250 " to " + printLevel);
251 Debug.printLevel = printLevel;
252 }
253 }
254
255
260 static public void setDebugMode(String mode) {
261 if (mode.equals("off")) {
262 Debug.debugMode = Debug.debugOff;
263 } else if (mode.equals("some")) {
264 Debug.debugMode = Debug.debugSome;
265 } else if (mode.equals("all")) {
266 Debug.debugMode = Debug.debugAll;
267 } else if (mode.equals("package")) {
268 Debug.debugMode = Debug.debugPackage;
269 }
270 }
271
272
275 static synchronized public void println(int level, String s) {
276 println(level, 1, s);
277 }
278
279 static String hdr() {
280 StringBuffer sb = new StringBuffer ();
281 if (debugTime != debugNoTime) {
282 sb.append(getInterval());
283 sb.append(": ");
284 }
285 sb.append("[");
286 sb.append(Thread.currentThread().getName());
287 sb.append("] ");
288 return sb.toString();
289 }
290
291
294 static synchronized public void println(int level, int depth, String s) {
295 if (level > printLevel) return;
296 debugStream.print(hdr());
297 if (sm != null) {
298 String className = debugSite(level, depth+1);
299 debugStream.print(className + ": ");
300 }
301 debugStream.println(s);
302 }
303
304 static String debugSite(int level, int depth) {
305 if (debugMode == debugOff || level > printLevel) return null;
306 boolean print = true;
307 Class [] classes = sm.pubGetClassContext();
308
309 String className = "";
310 String packageName = "";
311 if (classes.length > 2 + depth) {
312 Class caller = classes[2 + depth];
313 className = caller.getName();
314 int pos = className.lastIndexOf('.');
315 if (pos >= 0) {
316 packageName = className.substring(0, pos);
317 className = className.substring(pos+1);
318 }
319 }
320
321 String debugVal;
322
323 switch (debugMode) {
324 case debugSome:
325 debugVal = (String )debugMap.get(className);
326 if (debugVal != null && level <= Integer.parseInt(debugVal)) {
327 print = debugMode == debugSome;
328 }
329 break;
330 case debugPackage:
331 debugVal = (String )debugMap.get(packageName);
332 if (debugVal != null && level <= Integer.parseInt(debugVal)) {
333 print = debugMode == debugPackage;
334 }
335 break;
336 }
337
338 if (print) return className;
339 return null;
340 }
341
342 }
343
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