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

org.apache.log4j.Logger.info()
Log a message with the INFO 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

   } //*-- end of inner for
  } //*-- end of outer for
  //*-- end of training


  //*-- dump the classification model to a file
  logger.info("Start compiling TrainCatClassifier");
  String modelFile = Constants.TTYPE_CLASS_MODEL;
  ObjectOutputStream os = new ObjectOutputStream( new FileOutputStream(modelFile) );
  classifier.compileTo(os);
  os.close();
  logger.info("End compiling classifier");

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  logger.info("Start compiling TrainCatClassifier");
  String modelFile = Constants.TTYPE_CLASS_MODEL;
  ObjectOutputStream os = new ObjectOutputStream( new FileOutputStream(modelFile) );
  classifier.compileTo(os);
  os.close();
  logger.info("End compiling classifier");
  logger.debug("Ended TrainCatClassifier");
 }
}

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    //    remember: DEBUG < INFO < WARN < ERROR < FATAL
//    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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    appender.setThreshold(Level.ERROR);
    appender.activateOptions();


    Logger logger = Logger.getRootLogger();
    logger.addAppender(appender);
    logger.info(
      "Should not be logged by SyslogAppenderTest.testAppendBelowThreshold.");
  }


  /**
   * Tests that append method drops messages below threshold.

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    appender.setLayout(new PatternLayout("%m%n"));
    appender.activateOptions();


    Logger logger = Logger.getRootLogger();
    logger.addAppender(appender);
    logger.info(
      "Should not be logged by SyslogAppenderTest.testAppendNoHost.");
    assertEquals(1, errorHandler.size());


    //
    //  Appender is misspelled in implementation

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    Logger logger = Logger.getRootLogger();
    logger.addAppender(asyncAppender);


    Exception e =
      new Exception("Expected exception from SyslogAppenderTest.testAppend");
    logger.info(
      "Expected message from log4j unit test SyslogAppenderTest.testAppend.", e);
    assertEquals(0, errorHandler.size());
  }


  /**

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      appender.activateOptions();


      Logger l = Logger.getRootLogger();
      l.addAppender(appender);
      if (ex == null) {
        l.info(msg);
      } else {
        l.error(msg, ex);
      }
      appender.close();
      String[] retval = new String[packets];

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      appender.setLayout(pl);
      appender.activateOptions();


      Logger l = Logger.getRootLogger();
      l.addAppender(appender);
      l.info("Hello, World");
      appender.close();
      String[] s = new String[3];
      byte[] buf = new byte[1000];
      for(int i = 0; i < 3; i++) {
          DatagramPacket p = new DatagramPacket(buf, 0, buf.length);

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      StringBuffer msgbuf = new StringBuffer();
      while(msgbuf.length() < 8000) {
          msgbuf.append("0123456789");
      }
      String msg = msgbuf.toString();
      l.info(msg);
      appender.close();
      String[] s = new String[8];
      byte[] buf = new byte[1200];
      for(int i = 0; i < 8; i++) {
          DatagramPacket p = new DatagramPacket(buf, 0, buf.length);

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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);
  }

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