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

Logging in NSJSP 6.0

NonStop Servlets for JavaServer Pages (NSJSP) 6.0 System Administrator’s Guide—544548-004

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java.util.logging

java.util.logging is a logging implementation provided by Java that is part of

J2SE. The main components of java.util.logging are:



LogManager



Logger Objects



Handler Objects

LogManager

The LogManager exists as a singleton and can be obtained using the static

LogManager.getLogManager method. The LogManager tracks the global logging

information, which includes a hierarchical namespace of the main loggers. The

LogManager reads the logging configuration from the logging.properties file,

which is in the java.util.properties format.

The LogManager is initialized based on the system property

java.util.logging.LogManager. If this system property is present, the

LogManager points to a class that extends the java.util.logging.LogManager

class.

Logger Objects

A logger object logs messages for a specific system or an application component.

Each logger tracks the log level it wants and discards the Log requests below the

selected log level.

Loggers are named entities with dot-separated names, for example,

com.tandem.servlet. The namespace is hierarchical and is managed by the

LogManager. The namespace must be aligned with the Java packaging namespace.

Handler Objects

The handler object receives information that is logged by the logger object. The

handler uses formatters to localize the log messages before publishing them.

For more information about java.util.logging, refer

http://tomcat.apache.org/tomcat-6.0-doc/logging.html