Package org.terracotta.utilities.logging

Class LoggerBridge

java.lang.Object
org.terracotta.utilities.logging.LoggerBridge
public final class LoggerBridge extends Object
Bridge to permit variable-level use of SLF4j.

This class maintains a static reference to the LoggerBridge instances created by getInstance(Logger, Level).

  • Field Details

    • LOGGER

      private static final org.slf4j.Logger LOGGER

    • INSTANCES

      private static final Map<org.slf4j.Logger,Map<org.slf4j.event.Level,LoggerBridge>> INSTANCES

    • IS_LEVEL_ENABLED

      private static final Map<org.slf4j.event.Level,MethodHandle> IS_LEVEL_ENABLED

    • LOG

      private static final Map<org.slf4j.event.Level,MethodHandle> LOG

    • LOG_THROWABLE

      private static final Map<org.slf4j.event.Level,MethodHandle> LOG_THROWABLE

    • isLevelEnabled

      private final MethodHandle isLevelEnabled

    • log

      private final MethodHandle log

    • logThrowable

      private final MethodHandle logThrowable

  • Constructor Details

    • LoggerBridge

      private LoggerBridge(org.slf4j.Logger delegate, org.slf4j.event.Level level)
      Creates a LoggerBridge instance sending logging calls to the designated Logger at the specified level.
      Parameters:
      delegate - the delegate Logger
      level - the level at which the log method records
      Throws:
      AssertionError - if there is an error instantiating the required LoggerBridge instance

  • Method Details

    • getInstance

      public static LoggerBridge getInstance(org.slf4j.Logger delegate, org.slf4j.event.Level level)
      Creates or gets the LoggerBridge instance for the delegate Logger and Level.
      Parameters:
      delegate - the Logger to which logging calls are delegated
      level - the Level at which the returned LoggingBridge logs
      Returns:
      a LoggingBridge instance
      Throws:
      AssertionError - if there is an error instantiating the required LoggerBridge instance

    • getIsLevelEnabledMethodHandle

      private static MethodHandle getIsLevelEnabledMethodHandle(org.slf4j.event.Level level)

    • getLogMethodHandle

      private static MethodHandle getLogMethodHandle(org.slf4j.event.Level level)

    • getLogThrowableMethodHandle

      private static MethodHandle getLogThrowableMethodHandle(org.slf4j.event.Level level)

    • isLevelEnabled

      public boolean isLevelEnabled()
      Checks if the delegate logger is active for the configured level.
      Returns:
      true if the delegate logger is configured to record events of the level of this LoggerBridge

    • log

      public void log(String format, Object... arguments)
      Submits a log event to the delegate logger at the level of this LoggerBridge.
      Parameters:
      format - the log message format
      arguments - the arguments for the message

    • log

      public void log(String message, Throwable t)
      Submits a log event to the delegate logger at the level of this LoggerBridge.
      Parameters:
      message - the log message format
      t - the Throwable to log with message