1 // Copyright 2002 Adam Megacz, see the COPYING file for licensing [LGPL]
7 /** easy to use logger */
10 public static boolean on = true;
11 public static boolean verbose = false;
12 public static boolean logDates = false;
13 public static Date lastDate = null;
15 /** true iff nothing has yet been logged */
16 public static boolean firstMessage = true;
18 /** log a message with the current JavaScript sourceName/line */
19 public static void logJS(Object o, Object message) { logJS(message); }
20 public static void logJS(Object message) {
21 JS.Thread current = org.xwt.js.JS.Thread.fromJavaThread(Thread.currentThread());
22 if (current == null) {
23 log("<none>", message);
25 log(current.getSourceName() + ":" + current.getLine(), message);
29 /** message can be a String or a Throwable */
30 public static synchronized void log(Object o, Object message) {
32 if (firstMessage && !logDates) {
34 System.err.println("===========================================================================");
35 log(Log.class, "Logging enabled at " + new java.util.Date());
39 if (o instanceof Class) classname = ((Class)o).getName();
40 else if (o instanceof String) classname = (String)o;
41 else classname = o.getClass().getName();
43 if (classname.indexOf('.') != -1) classname = classname.substring(classname.lastIndexOf('.') + 1);
44 if (classname.length() > (logDates ? 14 : 20)) classname = classname.substring(0, (logDates ? 14 : 20));
45 while (classname.length() < (logDates ? 14 : 20)) classname = " " + classname;
46 classname = classname + ": ";
50 if (lastDate == null || d.getYear() != lastDate.getYear() || d.getMonth() != lastDate.getMonth() || d.getDay() != lastDate.getDay()) {
51 String now = new java.text.SimpleDateFormat("EEE dd MMM yyyy").format(d);
53 System.err.println("=== " + now + " ==========================================================");
55 java.text.DateFormat df = new java.text.SimpleDateFormat("[EEE HH:mm:ss] ");
56 classname = df.format(d) + classname;
60 if (!(message instanceof Throwable)) System.err.println(classname + message);
62 ByteArrayOutputStream baos = new ByteArrayOutputStream();
63 ((Throwable)message).printStackTrace(new PrintStream(baos));
64 byte[] b = baos.toByteArray();
65 BufferedReader br = new BufferedReader(new InputStreamReader(new ByteArrayInputStream(b)));
68 while((s = br.readLine()) != null) {
69 System.err.print(classname);
70 for(int i=0; i<s.length(); i++)
71 System.err.print(s.charAt(i) == '\t' ? " " : ("" + s.charAt(i)));
74 } catch (Exception e) { }