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// SPDX-License-Identifier: GPL-3.0-only
/*
* Prism Launcher - Minecraft Launcher
* Copyright (C) 2022 TheKodeToad <TheKodeToad@proton.me>
*
* 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, version 3.
*
* 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.
*
* Linking this library statically or dynamically with other modules is
* making a combined work based on this library. Thus, the terms and
* conditions of the GNU General Public License cover the whole
* combination.
*
* As a special exception, the copyright holders of this library give
* you permission to link this library with independent modules to
* produce an executable, regardless of the license terms of these
* independent modules, and to copy and distribute the resulting
* executable under terms of your choice, provided that you also meet,
* for each linked independent module, the terms and conditions of the
* license of that module. An independent module is a module which is
* not derived from or based on this library. If you modify this
* library, you may extend this exception to your version of the
* library, but you are not obliged to do so. If you do not wish to do
* so, delete this exception statement from your version.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package org.prismlauncher.utils.logging;
import java.io.PrintStream;
/**
* Used to print messages with different levels used to colourise the output.
* Used instead of a logging framework, as the launcher knows how to parse these
* messages.
*/
public final class Log {
// original before possibly overridden by MC
private static final PrintStream OUT = new PrintStream(System.out), ERR = new PrintStream(System.err);
private static final boolean DEBUG = Boolean.getBoolean("org.prismlauncher.debug");
public static void launcher(String message) {
log(message, Level.LAUNCHER);
}
public static void error(String message) {
log(message, Level.ERROR);
}
public static void debug(String message) {
log(message, Level.DEBUG);
}
public static void warning(String message) {
log(message, Level.WARNING);
}
public static void error(String message, Throwable e) {
error(message);
e.printStackTrace(ERR);
}
public static void fatal(String message) {
log(message, Level.FATAL);
}
public static void fatal(String message, Throwable e) {
fatal(message);
e.printStackTrace(ERR);
}
/**
* Logs a message with the prefix <code>!![LEVEL]!</code>. This is picked up by
* the log viewer to give it nice colours.
*
* @param message The message
* @param level The level
*/
public static void log(String message, Level level) {
if (!DEBUG && level == Level.DEBUG)
return;
String prefix = "!![" + level.name + "]!";
// prefix first line
message = prefix + message;
// prefix subsequent lines
message = message.replace("\n", "\n" + prefix);
if (level.stderr)
ERR.println(message);
else
OUT.println(message);
}
}
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