Logger.java

package heufybot.core;

import heufybot.utils.FileUtils;
import heufybot.utils.StringUtils;

import java.nio.file.Path;
import java.nio.file.Paths;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

public class Logger
{
    public static void log(String line, String target, String network)
    {
        String baseLogPath = HeufyBot.getInstance().getGlobalConfig()
                .getSettingWithDefault("logPath", "logs");

        // Timestamp line
        DateFormat dateFormat = new SimpleDateFormat("[HH:mm]");
        Date date = new Date();

        // Output to console
        String consoleLogLine = "";
        if (target == null)
        {
            consoleLogLine = dateFormat.format(date) + " " + line;
        }
        else
        {
            consoleLogLine = dateFormat.format(date) + " " + target + "@" + network + " - " + line;
        }

        consoleLogLine = StringUtils.toValid3ByteUTF8String(consoleLogLine);

        System.out.println(consoleLogLine);

        // Output to logfile
        Path path = Paths.get(baseLogPath).toAbsolutePath();
        if (network == null)
        {
            FileUtils.writeFileAppend(path.resolve("server.log").toString(), consoleLogLine + "\n");
        }
        else
        {
            FileUtils.touchDir(path.resolve(network + "/" + target).toString());

            line = dateFormat.format(date) + " " + line;

            dateFormat = new SimpleDateFormat("yyyy-MM-dd");
            FileUtils.writeFileAppend(
                    path.resolve(network + "/" + target + "/" + dateFormat.format(date) + ".log")
                            .toString(), line + "\n");
        }
    }

    public static void log(String line)
    {
        log(line, null, null);
    }

    public static void error(String errorSource, String line)
    {
        DateFormat dateFormat = new SimpleDateFormat("[HH:mm]");
        Date date = new Date();

        System.err.println(dateFormat.format(date) + " " + errorSource + " - ERROR: " + line);
    }
}