Package org.pipservices3.components.log

Class NullLogger

java.lang.Object
org.pipservices3.components.log.NullLogger
All Implemented Interfaces:
ILogger
public class NullLogger extends Object implements ILogger
Dummy implementation of logger that doesn't do anything.

It can be used in testing or in situations when logger is required but shall be disabled.

See Also:

  • Constructor Details

    • NullLogger

      public NullLogger()
      Creates a new instance of the logger.

  • Method Details

    • getLevel

      public LogLevel getLevel()
      Gets the maximum log level. Messages with higher log level are filtered out.
      Specified by:
      getLevel in interface ILogger
      Returns:
      the maximum log level.

    • setLevel

      public void setLevel(LogLevel value)
      Set the maximum log level.
      Specified by:
      setLevel in interface ILogger
      Parameters:
      value - a new maximum log level.

    • log

      public void log(LogLevel level, String correlationId, Exception error, String message, Object... args)
      Logs a message at specified log level.
      Specified by:
      log in interface ILogger
      Parameters:
      level - a log level.
      correlationId - (optional) transaction id to trace execution through call chain.
      error - an error object associated with this message.
      message - a human-readable message to log.
      args - arguments to parameterize the message.

    • fatal

      public void fatal(String correlationId, String message, Object... args)
      Logs fatal (unrecoverable) message that caused the process to crash.
      Specified by:
      fatal in interface ILogger
      Parameters:
      correlationId - (optional) transaction id to trace execution through call chain.
      message - a human-readable message to log.
      args - arguments to parameterize the message.

    • fatal

      public void fatal(String correlationId, Exception error)
      Logs fatal (unrecoverable) message that caused the process to crash.
      Specified by:
      fatal in interface ILogger
      Parameters:
      correlationId - (optional) transaction id to trace execution through call chain.
      error - an error object associated with this message.

    • fatal

      public void fatal(String correlationId, Exception error, String message, Object... args)
      Logs fatal (unrecoverable) message that caused the process to crash.
      Specified by:
      fatal in interface ILogger
      Parameters:
      correlationId - (optional) transaction id to trace execution through call chain.
      error - an error object associated with this message.
      message - a human-readable message to log.
      args - arguments to parameterize the message.

    • error

      public void error(String correlationId, String message, Object... args)
      Logs recoverable application error.
      Specified by:
      error in interface ILogger
      Parameters:
      correlationId - (optional) transaction id to trace execution through call chain.
      message - a human-readable message to log.
      args - arguments to parameterize the message.

    • error

      public void error(String correlationId, Exception error)
      Logs recoverable application error.
      Specified by:
      error in interface ILogger
      Parameters:
      correlationId - (optional) transaction id to trace execution through call chain.
      error - an error object associated with this message.

    • error

      public void error(String correlationId, Exception error, String message, Object... args)
      Logs recoverable application error.
      Specified by:
      error in interface ILogger
      Parameters:
      correlationId - (optional) transaction id to trace execution through call chain.
      error - an error object associated with this message.
      message - a human-readable message to log.
      args - arguments to parameterize the message.

    • warn

      public void warn(String correlationId, String message, Object... args)
      Logs a warning that may or may not have a negative impact.
      Specified by:
      warn in interface ILogger
      Parameters:
      correlationId - (optional) transaction id to trace execution through call chain.
      message - a human-readable message to log.
      args - arguments to parameterize the message.

    • info

      public void info(String correlationId, String message, Object... args)
      Logs an important information message
      Specified by:
      info in interface ILogger
      Parameters:
      correlationId - (optional) transaction id to trace execution through call chain.
      message - a human-readable message to log.
      args - arguments to parameterize the message.

    • debug

      public void debug(String correlationId, String message, Object... args)
      Logs a high-level debug information for troubleshooting.
      Specified by:
      debug in interface ILogger
      Parameters:
      correlationId - (optional) transaction id to trace execution through call chain.
      message - a human-readable message to log.
      args - arguments to parameterize the message.

    • trace

      public void trace(String correlationId, String message, Object... args)
      Logs a low-level debug information for troubleshooting.
      Specified by:
      trace in interface ILogger
      Parameters:
      correlationId - (optional) transaction id to trace execution through call chain.
      message - a human-readable message to log.
      args - arguments to parameterize the message.