Introduction to Log4j
Logging is a powerful aid for understanding and debugging the runtime behavior of the programs. Simply the logging means some way to indicate the state of the system at runtime. Logs are used to capture and persists the important data and make it available for analysis at any point in time.
Good logging requires three things:
Advantages of Logging
Almost all software development projects can run on a proper and strict schedule. Logging for an application can offer the following benefits:
Quick Debugging: Once we diagnose the problem, we know exactly how to solve the problem. Well-planned and well-written logging code reduces the overall cost of debugging the application.
Problem Diagnosis: No matter how well written our code is, there may be some problems hidden in it. If you review the logging process, then we will be able to detect the problems precisely and quickly.
Easy Maintenance: Application with a useful logging feature is easy to debug, and therefore, it is easy to maintain.
Cost and Time Savings: Well-written logging code offers quick debugging and easy maintenance. It makes installation, day to day maintenance, and maintenance, and debugging much more cost and time-effective.
Disadvantages of Logging
Following disadvantages can occur with any logging process:
Various logging frameworks are available in java such as SLF4J and Log4J. Apache Log4j is a very popular and old logging framework. It is a reliable, flexible, and fast logging framework or APIs are written in Java developed in early 1996. It is distributed under the Apache software license. Log4J has been ported to the Python, Perl, and C, C++, C #, Ruby and Eiffel languages. This tool is used for small to large scale Selenium Automation projects.
Log4j views the logging process in levels of priorities and to offer mechanisms to direct logging information to a great variety of destinations, such as a console, database, file, UNIX Syslog, etc.
Why use Log4j?