pl.kotcrab.arget.Log.java Source code

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Here is the source code for pl.kotcrab.arget.Log.java

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/*******************************************************************************
Copyright 2014 Pawel Pastuszak
     
This file is part of Arget.
    
Arget 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.
    
Arget 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 Arget.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/

package pl.kotcrab.arget;

import java.lang.Thread.UncaughtExceptionHandler;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.apache.commons.lang3.exception.ExceptionUtils;

/** Log utility, log events are redirected to listener and printed to standard output
 * @author Pawel Pastuszak */
public class Log {
    private static final boolean DEBUG = App.DEBUG;
    private static final boolean LOG_INTERRUPTED = DEBUG;

    private static LoggerListener listener = new DefaultLogListener();

    private static SimpleDateFormat dateFormat = new SimpleDateFormat("[HH:mm] ");

    public static void init() {
        Thread.setDefaultUncaughtExceptionHandler(new UncaughtExceptionHandler() {
            @Override
            public void uncaughtException(Thread t, Throwable e) {
                e.printStackTrace();
                listener.exception(ExceptionUtils.getStackTrace(e));
            }
        });
    }

    public static void exception(Exception e) {
        e.printStackTrace();
        listener.exception(ExceptionUtils.getStackTrace(e));
    }

    public static void interruptedEx(InterruptedException e) {
        if (LOG_INTERRUPTED)
            exception(e);
    }

    // ============STANDARD LOGGING============

    public static void l(String msg) {
        println(msg);
    }

    public static void w(String msg) {
        println("WARNING: " + msg);
    }

    public static void debug(String msg) {
        if (DEBUG)
            println("DEBUG: " + msg);
    }

    public static void err(String msg) {
        printlnErr("ERROR: " + msg);
    }

    // ============LOGGING WITHOUT NEW LINE============

    public static void lNnl(String msg) {
        print(msg);
    }

    public static void wNnl(String msg) {
        print("WARNING: " + msg);
    }

    public static void debugNnl(String msg) {
        if (DEBUG)
            print("DEBUG: " + msg);
    }

    public static void eNnl(String msg) {
        printErr("ERROR: " + msg);
    }

    // ============LOGGING WITH TAG============

    public static void l(String tag, String msg) {
        println("[" + tag + "] " + msg);
    }

    public static void w(String tag, String msg) {
        println("[" + tag + "] " + "WARNING: " + msg);
    }

    public static void debug(String tag, String msg) {
        if (DEBUG)
            println("[" + tag + "] " + "DEBUG: " + msg);
    }

    public static void err(String tag, String msg) {
        printlnErr("[" + tag + "] " + "ERROR: " + msg);
    }

    // ==========================================

    private static void print(String msg) {
        msg = getTimestamp() + msg;
        listener.log(msg);
        System.out.print(msg);
    }

    private static void println(String msg) {
        msg = getTimestamp() + msg;
        listener.log(msg);
        System.out.println(msg);
    }

    private static void printErr(String msg) {
        msg = getTimestamp() + msg;
        listener.err(msg);
        System.err.print(msg);
    }

    private static void printlnErr(String msg) {
        msg = getTimestamp() + msg;
        listener.err(msg);
        System.err.println(msg);
    }

    public static void setListener(LoggerListener listener) {
        Log.listener = listener;
    }

    private static String getTimestamp() {
        return dateFormat.format(new Date());
    }
}

class DefaultLogListener implements LoggerListener {
    @Override
    public void log(String msg) {
    }

    @Override
    public void err(String msg) {
    }

    @Override
    public void exception(String stacktrace) {
    }
}