Logging
is the process of writing log messages during the execution of a
program. Logging place a vital role while debugging an Application.
Logging using java.util.logging package is depicted in above figure.
Logging is done using Logger instance. Loggers get the data and make
them in the form of LogRecord and send them to the Handlers. Handlers
written the data to external world like consoles, files, network
sockets etc.,
As
shown in the figure Filters are associated with both loggers and
handlers. Filters decide whether to forward or discard particular log
record.
Handlers
use formatters to format the data. A Formatter provides support for
formatting LogRecords. SimpleFormatter, XMLFormatter are provided by
java.util.logging package.
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