107 lines
3.7 KiB
Java
107 lines
3.7 KiB
Java
// SPDX-License-Identifier: GPL-3.0-only
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/*
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* Prism Launcher - Minecraft Launcher
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* Copyright (C) 2022 TheKodeToad <TheKodeToad@proton.me>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Linking this library statically or dynamically with other modules is
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* making a combined work based on this library. Thus, the terms and
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* conditions of the GNU General Public License cover the whole
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* combination.
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*
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* As a special exception, the copyright holders of this library give
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* you permission to link this library with independent modules to
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* produce an executable, regardless of the license terms of these
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* independent modules, and to copy and distribute the resulting
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* executable under terms of your choice, provided that you also meet,
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* for each linked independent module, the terms and conditions of the
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* license of that module. An independent module is a module which is
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* not derived from or based on this library. If you modify this
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* library, you may extend this exception to your version of the
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* library, but you are not obliged to do so. If you do not wish to do
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* so, delete this exception statement from your version.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package org.prismlauncher.utils.logging;
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import java.io.PrintStream;
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/**
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* Used to print messages with different levels used to colourise the output.
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* Used instead of a logging framework, as the launcher knows how to parse these
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* messages.
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*/
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public final class Log {
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// original before overridden
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private static final PrintStream OUT = new PrintStream(System.out), ERR = new PrintStream(System.err);
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private static final PrintStream ERROR_PREFIX = new LogPrintStream(System.err, Level.ERROR),
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FATAL_PREFIX = new LogPrintStream(System.err, Level.FATAL);
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private static final boolean DEBUG = Boolean.getBoolean("org.prismlauncher.debug");
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public static void launcher(String message) {
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log(message, Level.LAUNCHER);
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}
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public static void error(String message) {
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log(message, Level.ERROR);
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}
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public static void debug(String message) {
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log(message, Level.DEBUG);
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}
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public static void warning(String message) {
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log(message, Level.WARNING);
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}
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public static void error(String message, Throwable e) {
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error(message);
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e.printStackTrace(ERROR_PREFIX);
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}
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public static void fatal(String message) {
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log(message, Level.FATAL);
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}
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public static void fatal(String message, Throwable e) {
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fatal(message);
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e.printStackTrace(FATAL_PREFIX);
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}
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/**
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* Logs a message with the prefix <code>!![LEVEL]!</code>. This is picked up by
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* the log viewer to give it nice colours.
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*
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* @param message The message
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* @param level The level
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*/
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public static void log(String message, Level level) {
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if (!DEBUG && level == Level.DEBUG)
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return;
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String prefix = "!![" + level.name + "]!";
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// prefix first line
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message = prefix + message;
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// prefix subsequent lines
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message = message.replace("\n", "\n" + prefix);
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if (level.stderr)
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ERR.println(message);
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else
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OUT.println(message);
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}
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}
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