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authorAlessandro Ghedini <al3xbio@gmail.com>2011-10-19 10:56:04 +0200
committerAlessandro Ghedini <al3xbio@gmail.com>2011-10-19 10:56:04 +0200
commit6451a495637c6e3047a5a56573cffc6e3de9a515 (patch)
tree7c3eb29532e7c4b36a9da13c5890664fb816959b /src/utilities/logger.vala
Imported Upstream version 0.2+gitdfdad95upstream/0.2+gitdfdad95
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+/*
+Copyright (c) 2011 by Simon Schneegans
+
+This program is free software: you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the Free
+Software Foundation, either version 3 of the License, or (at your option)
+any later version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+namespace GnomePie {
+
+/////////////////////////////////////////////////////////////////////////
+/// A static class which beautifies the messages of the default logger.
+/// Some of this code is inspired by plank's written by Robert Dyer.
+/// Thanks a lot for this project!
+/////////////////////////////////////////////////////////////////////////
+
+public class Logger {
+
+ /////////////////////////////////////////////////////////////////////
+ /// If these are set to false, the according messages are not shown
+ /////////////////////////////////////////////////////////////////////
+
+ public static bool display_info { get; set; default = true; }
+ public static bool display_debug { get; set; default = true; }
+ public static bool display_warning { get; set; default = true; }
+ public static bool display_error { get; set; default = true; }
+
+ /////////////////////////////////////////////////////////////////////
+ /// If true, a time stamp is shown in each message.
+ /////////////////////////////////////////////////////////////////////
+
+ public static bool display_time { get; set; default = true; }
+
+ /////////////////////////////////////////////////////////////////////
+ /// If true, the origin of the message is shown. In form file:line
+ /////////////////////////////////////////////////////////////////////
+
+ public static bool display_file { get; set; default = false; }
+
+ /////////////////////////////////////////////////////////////////////
+ /// A regex, used to format the standard message.
+ /////////////////////////////////////////////////////////////////////
+
+ private static Regex regex = null;
+
+ /////////////////////////////////////////////////////////////////////
+ /// Possible terminal colors.
+ /////////////////////////////////////////////////////////////////////
+
+ private enum Color {
+ BLACK,
+ RED,
+ GREEN,
+ YELLOW,
+ BLUE,
+ PURPLE,
+ TURQUOISE,
+ WHITE
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// Creates the regex and binds the handler.
+ /////////////////////////////////////////////////////////////////////
+
+ public static void init() {
+ try {
+ regex = new Regex("""(.*)\.vala(:\d+): (.*)""");
+ } catch {}
+
+ GLib.Log.set_default_handler(log_func);
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// Displays an Info message.
+ /////////////////////////////////////////////////////////////////////
+
+ private static void info(string message) {
+ if (display_info) {
+ stdout.printf(set_color(Color.GREEN, false) + "[" + get_time() + "MESSAGE]" + message);
+ }
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// Displays a Debug message.
+ /////////////////////////////////////////////////////////////////////
+
+ private static void debug(string message) {
+ if (display_debug) {
+ stdout.printf(set_color(Color.BLUE, false) + "[" + get_time() + " DEBUG ]" + message);
+ }
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// Displays a Warning message.
+ /////////////////////////////////////////////////////////////////////
+
+ private static void warning(string message) {
+ if (display_warning) {
+ stdout.printf(set_color(Color.YELLOW, false) + "[" + get_time() + "WARNING]" + message);
+ }
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// Displays a Error message.
+ /////////////////////////////////////////////////////////////////////
+
+ private static void error(string message) {
+ if (display_error) {
+ stdout.printf(set_color(Color.RED, false) + "[" + get_time() + " ERROR ]" + message);
+ }
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// Helper method which resets the terminal color.
+ /////////////////////////////////////////////////////////////////////
+
+ private static string reset_color() {
+ return "\x001b[0m";
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// Helper method which sets the terminal color.
+ /////////////////////////////////////////////////////////////////////
+
+ private static string set_color(Color color, bool bold) {
+ if (bold) return "\x001b[1;%dm".printf((int)color + 30);
+ else return "\x001b[0;%dm".printf((int)color + 30);
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// Returns the current time in hh:mm:ss:mmmmmm
+ /////////////////////////////////////////////////////////////////////
+
+ private static string get_time() {
+ if (display_time) {
+ var now = new DateTime.now_local ();
+ return "%.2d:%.2d:%.2d:%.6d ".printf (now.get_hour (), now.get_minute (), now.get_second (), now.get_microsecond ());
+ } else {
+ return "";
+ }
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// Helper method to format the message.
+ /////////////////////////////////////////////////////////////////////
+
+ private static string create_message(string message) {
+ if (display_file && regex != null && regex.match(message)) {
+ var parts = regex.split(message);
+ return " [%s%s]%s %s\n".printf(parts[1], parts[2], reset_color(), parts[3]);
+ } else if (regex != null && regex.match(message)) {
+ var parts = regex.split(message);
+ return "%s %s\n".printf(reset_color(), parts[3]);
+ } else {
+ return reset_color() + " " + message + "\n";
+ }
+ }
+
+ /////////////////////////////////////////////////////////////////////
+ /// The handler function.
+ /////////////////////////////////////////////////////////////////////
+
+ private static void log_func(string? d, LogLevelFlags flags, string message) {
+
+ switch (flags) {
+ case LogLevelFlags.LEVEL_ERROR:
+ case LogLevelFlags.LEVEL_CRITICAL:
+ error(create_message(message));
+ break;
+ case LogLevelFlags.LEVEL_INFO:
+ case LogLevelFlags.LEVEL_MESSAGE:
+ info(create_message(message));
+ break;
+ case LogLevelFlags.LEVEL_DEBUG:
+ debug(create_message(message));
+ break;
+ case LogLevelFlags.LEVEL_WARNING:
+ default:
+ warning(create_message(message));
+ break;
+ }
+ }
+}
+
+}