1 // Copyright 2002 Adam Megacz, see the COPYING file for licensing [LGPL]
6 /** easy to use logger */
9 public static boolean on = true;
10 public static boolean verbose = false;
11 public static boolean logDates = false;
12 public static Date lastDate = null;
14 /** true iff nothing has yet been logged */
15 public static boolean firstMessage = true;
17 /** message can be a String or a Throwable */
18 public static synchronized void log(Object o, Object message) {
20 if (firstMessage && !logDates) {
22 System.err.println("===========================================================================");
23 log(Log.class, "Logging enabled at " + new java.util.Date());
27 if (o instanceof Class) classname = ((Class)o).getName();
28 else if (o instanceof String) classname = (String)o;
29 else classname = o.getClass().getName();
31 if (classname.indexOf('.') != -1) classname = classname.substring(classname.lastIndexOf('.') + 1);
32 if (classname.length() > (logDates ? 14 : 20)) classname = classname.substring(0, (logDates ? 14 : 20));
33 while (classname.length() < (logDates ? 14 : 20)) classname = " " + classname;
34 classname = classname + ": ";
38 if (lastDate == null || d.getYear() != lastDate.getYear() || d.getMonth() != lastDate.getMonth() || d.getDay() != lastDate.getDay()) {
39 String now = new java.text.SimpleDateFormat("EEE dd MMM yyyy").format(d);
41 System.err.println("=== " + now + " ==========================================================");
43 java.text.DateFormat df = new java.text.SimpleDateFormat("[EEE HH:mm:ss] ");
44 classname = df.format(d) + classname;
48 if (!(message instanceof Throwable)) System.err.println(classname + message);
50 ByteArrayOutputStream baos = new ByteArrayOutputStream();
51 ((Throwable)message).printStackTrace(new PrintStream(baos));
52 byte[] b = baos.toByteArray();
53 BufferedReader br = new BufferedReader(new InputStreamReader(new ByteArrayInputStream(b)));
56 while((s = br.readLine()) != null) {
57 System.err.print(classname);
58 for(int i=0; i<s.length(); i++)
59 System.err.print(s.charAt(i) == '\t' ? " " : ("" + s.charAt(i)));
62 } catch (Exception e) { }