src/jalview/util/Log4j.java

   1 package jalview.util;
   2
   3 import java.util.Map;
   4
   5 import org.apache.logging.log4j.Level;
   6 import org.apache.logging.log4j.LogManager;
   7 import org.apache.logging.log4j.Logger;
   8 import org.apache.logging.log4j.core.Appender;
   9 import org.apache.logging.log4j.core.LoggerContext;
  10 import org.apache.logging.log4j.core.config.Configuration;
  11 import org.apache.logging.log4j.core.config.LoggerConfig;
  12
  13 public class Log4j
  14 {
  15   public static void setLevel(Logger logger, Level level)
  16   {
  17     LoggerContext context = (LoggerContext) LogManager.getContext(false);
  18     Configuration config = context.getConfiguration();
  19     LoggerConfig loggerConfig = config.getLoggerConfig(logger.getName());
  20     loggerConfig.setLevel(level);
  21   }
  22
  23   public static void setRootLevel(Level level)
  24   {
  25     setLevel(LogManager.getRootLogger(), level);
  26   }
  27
  28   public static void addAppender(Logger logger, Logger logger2,
  29           String name2)
  30   {
  31     LoggerContext context = (LoggerContext) LogManager.getContext(false);
  32     Configuration config = context.getConfiguration();
  33     LoggerConfig logger2Config = config.getLoggerConfig(logger2.getName());
  34     Map<String, Appender> logger2AppendersMap = logger2Config
  35             .getAppenders();
  36     Appender appender = logger2AppendersMap.get(name2);
  37     addAppender(logger, appender);
  38   }
  39
  40   public static void addAppender(Logger logger, Appender appender)
  41   {
  42     LoggerContext context = (LoggerContext) LogManager.getContext(false);
  43     Configuration config = context.getConfiguration();
  44     LoggerConfig loggerConfig = config.getLoggerConfig(logger.getName());
  45     loggerConfig.addAppender(appender, null, null);
  46   }
  47
  48   public static void addAppenderToRootLogger(Appender appender)
  49   {
  50     Log4j.addAppender(LogManager.getRootLogger(), appender);
  51   }
  52 }