de.unkrig.commons.util.logging.formatter

Class SelectiveFormatter

java.lang.Object

java.util.logging.Formatter

de.unkrig.commons.util.logging.formatter.SelectiveFormatter

public class SelectiveFormatter
extends Formatter

A Formatter calls one of two delegates, depending on the evaluation result of a LogRecord Predicate.

Constructor Summary

Constructors

Constructor and Description
SelectiveFormatter(Predicate<? super LogRecord> predicate, Formatter delegate1, Formatter delegate2)

Method Summary

Modifier and Type	Method and Description
String	format(LogRecord logRecord) Calls delegate1 if the predicate evaluates to true for the logRecord, otherwise delegate2.
static Formatter	loggerLevelGreaterThan(Level threshold, Formatter delegate1, Formatter delegate2) Returns a Formatter that for each LogRecord invokes delegate1 if the level of the processing Logger is greater than threshold, and for all other the delegate2.
static Formatter	logRecordLevelGreaterThan(Level threshold, Formatter delegate1, Formatter delegate2) Returns a Formatter that for each LogRecord invokes delegate1 if the level of the log record is greater than ("more severe than") threshold, and for all other the delegate2.

Methods inherited from class java.util.logging.Formatter

formatMessage, getHead, getTail

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SelectiveFormatter

public SelectiveFormatter(Predicate<? super LogRecord> predicate,
                          Formatter delegate1,
                          Formatter delegate2)

Parameters:

delegate1 - Is called for LogRecord for which the predicate evaluates to true

delegate2 - Is called for LogRecord for which the predicate evaluates to false

Method Detail

format

public String format(@Nullable
                     LogRecord logRecord)

Calls delegate1 if the predicate evaluates to true for the logRecord, otherwise delegate2.

Specified by:

format in class Formatter

See Also:

SelectiveFormatter(Predicate, Formatter, Formatter)

loggerLevelGreaterThan

public static final Formatter loggerLevelGreaterThan(Level threshold,
                                                     Formatter delegate1,
                                                     Formatter delegate2)

Returns a Formatter that for each LogRecord invokes delegate1 if the level of the processing Logger is greater than threshold, and for all other the delegate2.

A typical application is to format log records WITHOUT stack traces, except if the logger's level is set to Level.FINE or lower.

logRecordLevelGreaterThan

public static final Formatter logRecordLevelGreaterThan(Level threshold,
                                                        Formatter delegate1,
                                                        Formatter delegate2)

Returns a Formatter that for each LogRecord invokes delegate1 if the level of the log record is greater than ("more severe than") threshold, and for all other the delegate2.

A typical application is to format log records WITHOUT stack traces, except if the logger's level is set to Level.FINE or lower.