Module org.snmp4j
Package org.snmp4j.log

Class LogFactory

java.lang.Object
org.snmp4j.log.LogFactory
Direct Known Subclasses:
ConsoleLogFactory, JavaLogFactory
public class LogFactory extends Object
The LogFactory singleton is used by SNMP4J to determine the logging framework used to process SNMP4J log messages. By default NoLogger instances are used.
Since:
1.2.1
Version:
3.4.1
Author:
Frank Fock

  • Field Details

  • Constructor Details

    • LogFactory

      protected LogFactory()

  • Method Details

    • getLogger

      public static LogAdapter getLogger(Class<?> c)
      Gets the logger for the supplied class.
      Parameters:
      c - the class for which a logger needs to be created.
      Returns:
      the LogAdapter instance.

    • getRootLogger

      public LogAdapter getRootLogger()
      Returns the top level logger.
      Returns:
      a LogAdapter instance.
      Since:
      1.7

    • getLogger

      public static LogAdapter getLogger(String className)
      Gets the logger for the supplied class name.
      Parameters:
      className - the class name for which a logger needs to be created.
      Returns:
      the LogAdapter instance.
      Since:
      1.7

    • createLogger

      protected LogAdapter createLogger(Class<?> c)
      Creates a Logger for the specified class. This method returns the NoLogger logger instance which disables logging. Overwrite this method the return a custom logger to enable logging for SNMP4J.
      Parameters:
      c - the class for which a logger needs to be created.
      Returns:
      the LogAdapter instance.

    • createLogger

      protected LogAdapter createLogger(String className)
      Creates a Logger for the specified class. This method returns the NoLogger logger instance which disables logging. Overwrite this method the return a custom logger to enable logging for SNMP4J.
      Parameters:
      className - the class name for which a logger needs to be created.
      Returns:
      the LogAdapter instance.
      Since:
      1.7

    • setLogFactory

      public static void setLogFactory(LogFactory factory)
      Sets the log factory to be used by SNMP4J. Call this method before any other SNMP4J class is referenced or created to set and use a custom log factory.
      Parameters:
      factory - a LogFactory instance.

    • getLogFactory

      public static LogFactory getLogFactory()
      Gets the log factory to be used by SNMP4J. If the log factory has not been initialized by setLogFactory(org.snmp4j.log.LogFactory) a new instance of LogFactory is returned.
      Returns:
      a LogFactory instance.
      Since:
      1.7

    • loggers

      public Iterator<LogAdapter> loggers()
      Returns all available LogAdapters in depth first order.
      Returns:
      a read-only Iterator.
      Since:
      1.7

    • resetLogger

      public void resetLogger(LogAdapter logger)
      Close all handlers of a logger and set its level to null if it is not the root logger.
      Parameters:
      logger - the logger to be reset.
      Since:
      3.4.1

    • getLoggerConfigPrefix

      public String getLoggerConfigPrefix()

    • setLoggerConfigPrefix

      public void setLoggerConfigPrefix(String loggerConfigPrefix)
      Set the properties name prefix, including the trailing ".", used by updateConfiguration(Properties) and writeConfiguration(Properties) for logger properties.
      Parameters:
      loggerConfigPrefix - the prefix for LogAdapter configuration properties.
      Since:
      3.4.1

    • getLogHandlerConfigPrefix

      public String getLogHandlerConfigPrefix()

    • setLogHandlerConfigPrefix

      public void setLogHandlerConfigPrefix(String logHandlerConfigPrefix)
      Set the properties name prefix, including the trailing ".", used by updateConfiguration(Properties) and writeConfiguration(Properties) for log handler properties.
      Parameters:
      logHandlerConfigPrefix - the prefix for log handler configuration properties.
      Since:
      3.4.1

    • reset

      public void reset()
      Reset the logging configuration. For all named log adapters, the reset operation removes and closes all handlers (log factory specific) and (except for the root logger) sets the level to null. The root logger's level is set to LogLevel.INFO.
      Since:
      3.4.1

    • updateConfiguration

      public void updateConfiguration(Properties config)
      Configure the log levels of the LogAdapter specified in the Properties provided by the propertiesReader parameter. For example: 
           snmp4j.log.level.<loggerName>=<LogLevel>
      Parameters:
      config - the Properties that contain properties with the prefixes getLoggerConfigPrefix() and getLogHandlerConfigPrefix().

    • removeAllHandlers

      protected void removeAllHandlers(LogAdapter logAdapter)

    • addHandler

      protected void addHandler(LogAdapter logAdapter, String handlerName, Map<String,String> handlerConfig)

    • updateLogger

      protected void updateLogger(LogAdapter logAdapter, Map<String,String> loggerConfig)

    • writeConfiguration

      public void writeConfiguration(Properties config)

    • writeConfiguration

      protected void writeConfiguration(Properties config, LogAdapter logAdapter)

    • writeConfiguration

      protected String writeConfiguration(Properties config, LogAdapter logAdapter, Object handler)