1 // Copyright 2003 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) { log(JS.getSourceName() + ":" + JS.getLine(), message); }
22 /** message can be a String or a Throwable */
23 public static synchronized void log(Object o, Object message) {
24 if (firstMessage && !logDates) {
26 System.err.println("===========================================================================");
27 log(Log.class, "Logging enabled at " + new java.util.Date());
31 if (o instanceof Class) classname = ((Class)o).getName();
32 else if (o instanceof String) classname = (String)o;
33 else classname = o.getClass().getName();
35 if (classname.indexOf('.') != -1) classname = classname.substring(classname.lastIndexOf('.') + 1);
36 if (classname.length() > (logDates ? 14 : 20)) classname = classname.substring(0, (logDates ? 14 : 20));
37 while (classname.length() < (logDates ? 14 : 20)) classname = " " + classname;
38 classname = classname + ": ";
42 if (lastDate == null || d.getYear() != lastDate.getYear() || d.getMonth() != lastDate.getMonth() || d.getDay() != lastDate.getDay()) {
43 String now = new java.text.SimpleDateFormat("EEE dd MMM yyyy").format(d);
45 System.err.println("=== " + now + " ==========================================================");
47 java.text.DateFormat df = new java.text.SimpleDateFormat("[EEE HH:mm:ss] ");
48 classname = df.format(d) + classname;
52 if (!(message instanceof Throwable)) System.err.println(classname + message);
54 ByteArrayOutputStream baos = new ByteArrayOutputStream();
55 ((Throwable)message).printStackTrace(new PrintStream(baos));
56 byte[] b = baos.toByteArray();
57 BufferedReader br = new BufferedReader(new InputStreamReader(new ByteArrayInputStream(b)));
60 while((s = br.readLine()) != null) {
61 System.err.print(classname);
62 for(int i=0; i<s.length(); i++)
63 System.err.print(s.charAt(i) == '\t' ? " " : ("" + s.charAt(i)));
66 } catch (Exception e) { }
71 public static void recursiveLog(String indent, String name, Object o) {
72 if (!name.equals("")) name += " : ";
75 Log.logJS(indent + name + "<null>");
77 } else if (o instanceof JSArray) {
78 Log.logJS(indent + name + "<array>");
79 JSArray na = (JSArray)o;
80 for(int i=0; i<na.length(); i++)
81 recursiveLog(indent + " ", i + "", na.elementAt(i));
83 } else if (o instanceof JS) {
84 Log.logJS(indent + name + "<object>");
86 Enumeration e = s.keys();
87 while(e.hasMoreElements()) {
88 Object key = e.nextElement();
90 recursiveLog(indent + " ", key.toString(),
91 (key instanceof Integer) ?
92 s.get(((Integer)key)) : s.get(key.toString()));
95 Log.logJS(indent + name + o);