NonStop Servlets for JavaServer Pages (NSJSP) 6.0 System Administrator's Guide

NonStop Servlets for JavaServer Pages (NSJSP) 6.0 System Administrator’s Guide—544548-004
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6 Logging in NSJSP 6.0
This chapter includes these sections:

Prerequisites

Overview of Commons Logging and java.util.logging

Logging Implementation in NSJSP 6.0
Prerequisites
To understand the logging functionality in NSJSP 6.0, you must have a good
understanding of:

Commons Logging

java.util.logging package

NSJSP
Overview of Commons Logging and
java.util.logging
This section provides an overview of the Commons Logging and the
java.util.logging.
Commons Logging
Commons Logging is an Apache Commons project that provides a layer of abstraction
over popular logging implementations like Log4J, and java.util.logging. Using
Commons Logging, you can program an interface or a standard rather than
programming the implementation. For more information on Log4J, refer
http://logging.apache.org/log4j/
.
NSJSP 6.0 uses Commons Logging across its internal code.
The main components of Commons Logging are:

Log interface: acts as a bridge between Commons Logging and various logging
implementations. The LogFactory class provides the implementation for the Log
interface to Commons Logging.

LogFactory: detects the underlying logging implementation and provides the
appropriate implementation for the Log interface. The implementation of the Log
interface is responsible for establishing a communication with the underlying
implementation.
For more information on Commons Logging, refer http://commons.apache.org/logging/
.