■

SimpleLog (https://simple-log.dev.java.net/) のサンプルコード。

/*

 * Created on 2006/01/26

 *

 */

package test;
import java.text.SimpleDateFormat;
import org.grlea.log.DebugLevel;

import org.grlea.log.SimpleLog;

import org.grlea.log.SimpleLogger;
/**

 * @author hal

 *

 */

public class SimpleLogSample {

    static {

        SimpleLog log = SimpleLog.defaultInstance();

        log.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));

        log.setDefaultLevel(DebugLevel.L4_INFO);

        log.setDefaultTracing(true);

    }

    private final SimpleLogger logger = new SimpleLogger(SimpleLogSample.class);

    

    public SimpleLogSample() {

        logger.entry("()");

        logger.info("creating instance...");

        logger.exit("()");

    }

    

    public void init() {

        logger.entry("init()");

        logger.info("SimpleLogSample initializing...");

        System.out.println("doing init");

        logger.exit("init()");

    }

    

    private SomeClass someClass;

    

    public void exec() {

        logger.entry("exec()");

        logger.info("SimpleLogSample executing...");

        System.out.println("doing exec");

        someClass = new SomeClass("SomeClass thread");

        someClass.start();

        logger.exit("exec()");

    }

    

    public void finish() {

        logger.entry("finish()");

        logger.info("SimpleLogSample finishing...");

        System.out.println("doing finish");

        try {

            someClass.join();

        } catch (InterruptedException e) {

        }

        logger.exit("finish()");

    }
    public static void main(String[] args) {

        SimpleLogSample sample = new SimpleLogSample();

        sample.init();

        sample.exec();

        sample.finish();

    }

}
class SomeClass extends Thread {

    private final SimpleLogger logger = new SimpleLogger(SomeClass.class);

    

    SomeClass(String name) {

        super(name);

        logger.entry("()");

        logger.info("creating instance");

        logger.exit("()");

    }

    

    public void run() {

        logger.entry("run()");

        logger.info("SomeClass running...");

        for (int i = 0; i < 10; i++) {

            doSomething();

            try {

                Thread.sleep(500);

            } catch (InterruptedException e) {

            }

        }

        logger.exit("run()");

    }

    

    private void doSomething() {

        logger.entry("doSomething()");

        logger.info("SomeClass doing something...");

        logger.exit("doSomething");

    }

}

実行するときは、空でもいいから実行時ディレクトリに simplelog.properties が必要らしい。
実行結果（Eclipseのコンソール出力）

doing init

doing exec

2006-01-26 22:45:31|>>>|main|SimpleLogSample|()

2006-01-26 22:45:31|   |main|SimpleLogSample|creating instance...

2006-01-26 22:45:31|<<<|main|SimpleLogSample|()

2006-01-26 22:45:31|>>>|main|SimpleLogSample|init()

2006-01-26 22:45:31|   |main|SimpleLogSample|SimpleLogSample initializing...

2006-01-26 22:45:31|<<<|main|SimpleLogSample|init()

2006-01-26 22:45:31|>>>|main|SimpleLogSample|exec()

2006-01-26 22:45:31|   |main|SimpleLogSample|SimpleLogSample executing...

2006-01-26 22:45:31|>>>|main|SomeClass|()

2006-01-26 22:45:31|   |main|SomeClass|creating instance

2006-01-26 22:45:31|<<<|main|SomeClass|()

doing finish

2006-01-26 22:45:31|<<<|main|SimpleLogSample|exec()

2006-01-26 22:45:31|>>>|main|SimpleLogSample|finish()

2006-01-26 22:45:31|   |main|SimpleLogSample|SimpleLogSample finishing...

2006-01-26 22:45:31|>>>|SomeClass thread|SomeClass|run()

2006-01-26 22:45:31|   |SomeClass thread|SomeClass|SomeClass running...

2006-01-26 22:45:31|>>>|SomeClass thread|SomeClass|doSomething()

2006-01-26 22:45:31|   |SomeClass thread|SomeClass|SomeClass doing something...

2006-01-26 22:45:31|<<<|SomeClass thread|SomeClass|doSomething

2006-01-26 22:45:32|>>>|SomeClass thread|SomeClass|doSomething()

2006-01-26 22:45:32|   |SomeClass thread|SomeClass|SomeClass doing something...

2006-01-26 22:45:32|<<<|SomeClass thread|SomeClass|doSomething

2006-01-26 22:45:32|>>>|SomeClass thread|SomeClass|doSomething()

2006-01-26 22:45:32|   |SomeClass thread|SomeClass|SomeClass doing something...

2006-01-26 22:45:32|<<<|SomeClass thread|SomeClass|doSomething

2006-01-26 22:45:33|>>>|SomeClass thread|SomeClass|doSomething()

2006-01-26 22:45:33|   |SomeClass thread|SomeClass|SomeClass doing something...

2006-01-26 22:45:33|<<<|SomeClass thread|SomeClass|doSomething

2006-01-26 22:45:33|>>>|SomeClass thread|SomeClass|doSomething()

2006-01-26 22:45:33|   |SomeClass thread|SomeClass|SomeClass doing something...

2006-01-26 22:45:33|<<<|SomeClass thread|SomeClass|doSomething

2006-01-26 22:45:34|>>>|SomeClass thread|SomeClass|doSomething()

2006-01-26 22:45:34|   |SomeClass thread|SomeClass|SomeClass doing something...

2006-01-26 22:45:34|<<<|SomeClass thread|SomeClass|doSomething

2006-01-26 22:45:34|>>>|SomeClass thread|SomeClass|doSomething()

2006-01-26 22:45:34|   |SomeClass thread|SomeClass|SomeClass doing something...

2006-01-26 22:45:34|<<<|SomeClass thread|SomeClass|doSomething

2006-01-26 22:45:35|>>>|SomeClass thread|SomeClass|doSomething()

2006-01-26 22:45:35|   |SomeClass thread|SomeClass|SomeClass doing something...

2006-01-26 22:45:35|<<<|SomeClass thread|SomeClass|doSomething

2006-01-26 22:45:35|>>>|SomeClass thread|SomeClass|doSomething()

2006-01-26 22:45:35|   |SomeClass thread|SomeClass|SomeClass doing something...

2006-01-26 22:45:35|<<<|SomeClass thread|SomeClass|doSomething

2006-01-26 22:45:36|>>>|SomeClass thread|SomeClass|doSomething()

2006-01-26 22:45:36|   |SomeClass thread|SomeClass|SomeClass doing something...

2006-01-26 22:45:36|<<<|SomeClass thread|SomeClass|doSomething

2006-01-26 22:45:36|<<<|SomeClass thread|SomeClass|run()

2006-01-26 22:45:36|<<<|main|SimpleLogSample|finish()