--- /dev/null
+// Copyright (C) 2003 Adam Megacz <adam@ibex.org> all rights reserved.
+//
+// You may modify, copy, and redistribute this code under the terms of
+// the GNU Library Public License version 2.1, with the exception of
+// the portion of clause 6a after the semicolon (aka the "obnoxious
+// relink clause")
+
+package org.ibex.util;
+import org.ibex.js.*;
+import java.io.*;
+import java.util.*;
+
+/** easy to use logger */
+public class Log {
+
+ public static boolean on = true;
+ public static boolean color = false;
+ public static boolean verbose = false;
+ public static boolean logDates = false;
+ public static Date lastDate = null;
+
+ /** true iff nothing has yet been logged */
+ public static boolean firstMessage = true;
+
+ /** message can be a String or a Throwable */
+ public static synchronized void echo(Object o, Object message) { log(o, message, ECHO); }
+ public static synchronized void diag(Object o, Object message) { log(o, message, DIAGNOSTIC); }
+ public static synchronized void debug(Object o, Object message) { log(o, message, DEBUG); }
+ public static synchronized void info(Object o, Object message) { log(o, message, INFO); }
+ public static synchronized void warn(Object o, Object message) { log(o, message, WARN); }
+ public static synchronized void error(Object o, Object message) { log(o, message, ERROR); }
+
+ // these two logging levels serve ONLY to change the color; semantically they are the same as DEBUG
+ private static final int DIAGNOSTIC = -2;
+ private static final int ECHO = -1;
+
+ // the usual log4j levels, minus FAIL (we just throw an Error in that case)
+ private static final int DEBUG = 0;
+ private static final int INFO = 1;
+ private static final int WARN = 2;
+ private static final int ERROR = 3;
+
+ private static final int BLACK = 30;
+ private static final int BLUE = 34;
+ private static final int GREEN = 32;
+ private static final int CYAN = 36;
+ private static final int RED = 31;
+ private static final int PURPLE = 35;
+ private static final int BROWN = 33;
+ private static final int GRAY = 37;
+
+ private static String colorize(int color, boolean bright, String s) {
+ if (!Log.color) return s;
+ return
+ "\033[40;" + (bright?"1;":"") + color + "m" +
+ s +
+ "\033[0m";
+ }
+
+ private static String lastClassName = null;
+ private static synchronized void log(Object o, Object message, int level) {
+ if (firstMessage && !logDates) {
+ firstMessage = false;
+ System.err.println(colorize(GREEN, false, "==========================================================================="));
+ diag(Log.class, "Logging enabled at " + new java.util.Date());
+ if (color) diag(Log.class, "logging messages in " +
+ colorize(BLUE, true, "c") +
+ colorize(RED, true, "o") +
+ colorize(CYAN, true, "l") +
+ colorize(GREEN, true, "o") +
+ colorize(PURPLE, true, "r"));
+ }
+
+ String classname;
+ if (o instanceof Class) classname = ((Class)o).getName();
+ else if (o instanceof String) classname = (String)o;
+ else classname = o.getClass().getName();
+
+ if (classname.equals(lastClassName)) classname = "";
+ else lastClassName = classname;
+
+ if (classname.indexOf('.') != -1) classname = classname.substring(classname.lastIndexOf('.') + 1);
+ if (classname.length() > (logDates ? 14 : 20)) classname = classname.substring(0, (logDates ? 14 : 20));
+ while (classname.length() < (logDates ? 14 : 20)) classname = " " + classname;
+ classname = classname + (classname.trim().length() == 0 ? " " : ": ");
+ classname = colorize(GRAY, true, classname);
+ classname = classname.replace('$', '.');
+
+ if (logDates) {
+ Date d = new Date();
+ if (lastDate == null || d.getYear() != lastDate.getYear() || d.getMonth() != lastDate.getMonth() || d.getDay() != lastDate.getDay()) {
+ String now = new java.text.SimpleDateFormat("EEE dd MMM yyyy").format(d);
+ System.err.println();
+ System.err.println(colorize(GRAY, false, "=== " + now + " =========================================================="));
+ }
+ java.text.DateFormat df = new java.text.SimpleDateFormat("[EEE HH:mm:ss] ");
+ classname = df.format(d) + classname;
+ lastDate = d;
+ }
+
+
+ if (message instanceof Throwable) {
+ if (level < ERROR) level = WARN;
+ ByteArrayOutputStream baos = new ByteArrayOutputStream();
+ ((Throwable)message).printStackTrace(new PrintStream(baos));
+ byte[] b = baos.toByteArray();
+ BufferedReader br = new BufferedReader(new InputStreamReader(new ByteArrayInputStream(b)));
+ String s = null;
+ try {
+ String m = "";
+ while((s = br.readLine()) != null) m += s + "\n";
+ log(o, m.substring(0, m.length() - 1), level);
+ } catch (IOException e) {
+ System.err.println(colorize(RED, true, "Logger: exception thrown by ByteArrayInputStream -- this should not happen"));
+ }
+ return;
+ }
+
+ String str = message.toString();
+ while(str.indexOf('\t') != -1)
+ str = str.substring(0, str.indexOf('\t')) + " " + str.substring(str.indexOf('\t') + 1);
+
+ classname = colorize(GRAY, false, classname);
+ int levelcolor = GRAY;
+ boolean bright = true;
+ switch (level) {
+ case DIAGNOSTIC: levelcolor = GREEN; bright = false; break;
+ case ECHO: levelcolor = BLUE; bright = true; break;
+ case DEBUG: levelcolor = BROWN; bright = true; break;
+ case INFO: levelcolor = GRAY; bright = false; break;
+ case WARN: levelcolor = BROWN; bright = false; break;
+ case ERROR: levelcolor = RED; bright = true; break;
+ }
+
+ while(str.indexOf('\n') != -1) {
+ System.err.println(classname + colorize(levelcolor, bright, str.substring(0, str.indexOf('\n'))));
+ classname = logDates ? " " : " ";
+ classname = colorize(GRAY,false,classname);
+ str = str.substring(str.indexOf('\n') + 1);
+ }
+ System.err.println(classname + colorize(levelcolor, bright, str));
+ }
+
+ public static void recursiveLog(String indent, String name, Object o) throws JSExn {
+ if (!name.equals("")) name += " : ";
+
+ if (o == null) {
+ JS.log(indent + name + "<null>");
+
+ } else if (o instanceof JSArray) {
+ JS.log(indent + name + "<array>");
+ JSArray na = (JSArray)o;
+ for(int i=0; i<na.length(); i++)
+ recursiveLog(indent + " ", i + "", na.elementAt(i));
+
+ } else if (o instanceof JS) {
+ JS.log(indent + name + "<object>");
+ JS s = (JS)o;
+ Enumeration e = s.keys();
+ while(e.hasMoreElements()) {
+ Object key = e.nextElement();
+ if (key != null)
+ recursiveLog(indent + " ", key.toString(),
+ (key instanceof Integer) ?
+ s.get(((Integer)key)) : s.get(key.toString()));
+ }
+ } else {
+ JS.log(indent + name + o);
+
+ }
+ }
+
+}
projects / org.ibex.core.git / blobdiff