Examples of org.apache.log4j.Logger.warn()

org.apache.log4j.Logger.warn()
Log a message with the WARN level with message formatting done according to the messagePattern and the arguments arg1 and arg2.
This form avoids superflous parameter construction. Whenever possible, you should use this form instead of constructing the message parameter using string concatenation. @param messagePattern The message pattern which will be parsed and formatted @param arg1 The first argument to replace the first formatting element @param arg2 The second argument to replace the second formatting element @since 1.3

    int n = 0;


    log4jLogger.trace("msg" +(n++));
    log4jLogger.debug("msg" +(n++));
    log4jLogger.info("msg" +(n++));
    log4jLogger.warn("msg" +(n++));
    log4jLogger.error("msg" +(n++));
    log4jLogger.fatal("msg" +(n++));
    
    log4jCategory.debug("msg" +(n++));
    log4jCategory.info("msg" +(n++));

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  public void testSmoke() {
    Logger l = Logger.getLogger("a");
    l.trace("t");
    l.debug("d");
    l.info("i");
    l.warn("w");
    l.error("e");
    l.fatal("f");


    Exception e = new Exception("testing");
    l.trace("t", e);

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    Exception e = new Exception("testing");
    l.trace("t", e);
    l.debug("d", e);
    l.info("i", e);
    l.warn("w", e);
    l.error("e", e);
    l.fatal("f", e);
  }


}

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//    myLogger.setLevel(Level.WARN);
    myLogger.setLevel(Level.INFO);
    
    // log a fatal event 
    myLogger.info("info: I have died of thirst");
    myLogger.warn("warn: I have died of thirst");
    myLogger.error("error: I have died of thirst");
    myLogger.fatal("fatal: I have died of thirst");


  }
}

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  void common(String msg) {
    Logger logger = Logger.getLogger("test");
    logger.trace(msg);
    logger.debug(msg);
    logger.info(msg);
    logger.warn(msg);
    logger.error(msg);
    logger.fatal(msg);
  }


  public static Test suite() {

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    BasicConfigurator.configure(new NTEventLogAppender());
    Logger logger = Logger.getLogger("org.apache.log4j.nt.NTEventLogAppenderTest");
    int i  = 0;
    logger.debug( "Message " + i++);
    logger.info( "Message " + i++);
    logger.warn( "Message " + i++);
    logger.error( "Message " + i++);
    logger.log(Level.FATAL, "Message " + i++);
    logger.debug("Message " + i++,  new Exception("Just testing."));
  }
}

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      boolean s = r1.shutdown(2000);
      Assert.assertTrue(s);


      DbusEventsTotalStats stats2 = relay2.getInboundEventStatisticsCollector().getTotalStats();
      long firstGenChainWindows = stats2.getNumSysEvents();
      log.warn("relay2:  numDataEvents=" + stats2.getNumDataEvents()
          + " numWindows=" + firstGenChainWindows + " minScn="
          + stats2.getMinScn() + " maxScn=" + stats2.getMaxScn());


      Thread.sleep(2*1000);

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      r3.pause();


      Thread.sleep(35*1000);


      log.warn("relay3:  numDataEvents=" + stats3.getNumDataEvents()
          + " numWindows=" + stats3.getNumSysEvents() + " minScn="
          + stats3.getMinScn() + " maxScn=" + stats3.getMaxScn());


      stats2 = relay2.getInboundEventStatisticsCollector().getTotalStats();
      log.warn("relay2b: numDataEvents=" + stats2.getNumDataEvents()

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      log.warn("relay3:  numDataEvents=" + stats3.getNumDataEvents()
          + " numWindows=" + stats3.getNumSysEvents() + " minScn="
          + stats3.getMinScn() + " maxScn=" + stats3.getMaxScn());


      stats2 = relay2.getInboundEventStatisticsCollector().getTotalStats();
      log.warn("relay2b: numDataEvents=" + stats2.getNumDataEvents()
          + " numWindows=" + stats2.getNumSysEvents() + " minScn="
          + stats2.getMinScn() + " maxScn=" + stats2.getMaxScn());


      log.warn("consumer: " + countingConsumer);

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      stats2 = relay2.getInboundEventStatisticsCollector().getTotalStats();
      log.warn("relay2b: numDataEvents=" + stats2.getNumDataEvents()
          + " numWindows=" + stats2.getNumSysEvents() + " minScn="
          + stats2.getMinScn() + " maxScn=" + stats2.getMaxScn());


      log.warn("consumer: " + countingConsumer);




      //compare chained relays with 2 gens of tier 0 relays
      Assert.assertEquals(stats2.getMinScn(), firstGenMinScn) ;
      Assert.assertEquals(stats2.getMaxScn(), stats3.getMaxScn());

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