Explanation of Steps

• Start
  The logger is invoked through a method call like logger.log("message", INFO).

• Check if log level is enabled
  The logger checks if the given message level (e.g., DEBUG) is allowed based on the current configuration.

• Ignore Message (if level is too low)
  If the log level is lower than the configured threshold, the logger exits without logging.

• Format the Message
  If the message passes the log level filter, it is passed to a formatter that adds metadata (timestamp, level, etc.).

• Pass to Handler
  The formatted message is passed to one or more handlers (e.g., file handler, console handler).

• Write the Log
  The handler writes the log to the desired output destination.

• End
  The logging process ends after writing.

How to Explain to Students

• Emphasize conditional paths (e.g., level check).
• Highlight the separation of responsibilities: formatting and handling.
• Discuss how this flow supports extensibility and performance.