JavaBasic - logging

log4j.properties

log4j.rootLogger=INFO, A1

# A1 is set to be a ConsoleAppender.
log4j.appender.A1=org.apache.log4j.ConsoleAppender
log4j.appender.A2=org.apache.log4j.FileAppender

# A2 FileAppender config
log4j.appender.A2.File=junior.log
log4j.appender.A2.layout=org.apache.log4j.PatternLayout
log4j.appender.A2.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n

# A1 uses PatternLayout.
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
log4j.appender.A1.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n
log4j.appender.A1.threshold=error

log4j.logger.com.epam=INFO,A2

logback.xml

<configuration scan="true" scanPeriod="3 seconds">

  <jmxConfigurator />
  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    <!-- encoders are assigned the type
         ch.qos.logback.classic.encoder.PatternLayoutEncoder by default -->
    <encoder>
      <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36}|%M - %msg%n</pattern>
    </encoder>
  </appender>

  <root level="error">
    <appender-ref ref="STDOUT" />
  </root>
</configuration>

LunchTime.java

package com.epam.junior;

import java.util.Date;
import java.text.SimpleDateFormat;
import org.apache.log4j.Logger;

public class LunchTime {
  static org.apache.log4j.Logger logger = Logger.getLogger(LunchTime.class);
  static java.util.logging.Logger julLogger = java.util.logging.Logger.getLogger(LunchTime.class.getName());
  static final long MINUTES_IN_MILLIS = 60000;

  public static void main(String[] args) {
    try {
      org.slf4j.bridge.SLF4JBridgeHandler.install();
      SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");

      Date now = new Date();
      Date lunch = sdf.parse("2012-07-16 12:00");
      logger.info("lunchtime:" + lunch);
      julLogger.info("!!! JUL !!! lunchtime:" + lunch);
      
      logger.debug("caculating from milliseconds by dividing with: " + MINUTES_IN_MILLIS);
      Long minutes = (lunch.getTime() - now.getTime()) / MINUTES_IN_MILLIS;
      System.out.println("minutes left till lunch:" + minutes);
      
    } catch (Exception e) {
      logger.error(e);
    }
  }
}