org.apache.log4j.pattern
Class PatternParser

java.lang.Object
  org.apache.log4j.pattern.PatternParser

public final class PatternParser
extends Object

Most of the work of the EnhancedPatternLayout class is delegated to the PatternParser class.

It is this class that parses conversion patterns and creates a chained list of PatternConverters.

Author:

James P. Cakalic, Ceki Gülcü, Anders Kristensen, Paul Smith, Curt Arnold

Method Summary

static Map	getFileNamePatternRules() Get standard format specifiers for rolling file appender file specification.
static Map	getPatternLayoutRules() Get standard format specifiers for EnhancedPatternLayout.
static void	parse(String pattern, List patternConverters, List formattingInfos, Map converterRegistry, Map rules) Parse a format specifier.

Methods inherited from class java.lang.Object

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

Method Detail

getPatternLayoutRules

public static Map getPatternLayoutRules()

Get standard format specifiers for EnhancedPatternLayout.

Returns:

read-only map of format converter classes keyed by format specifier strings.

getFileNamePatternRules

public static Map getFileNamePatternRules()

Get standard format specifiers for rolling file appender file specification.

Returns:

read-only map of format converter classes keyed by format specifier strings.

parse

public static void parse(String pattern,
                         List patternConverters,
                         List formattingInfos,
                         Map converterRegistry,
                         Map rules)

Parse a format specifier.

Parameters:

pattern - pattern to parse.

patternConverters - list to receive pattern converters.

formattingInfos - list to receive field specifiers corresponding to pattern converters.

converterRegistry - map of user-supported pattern converters keyed by format specifier, may be null.

rules - map of stock pattern converters keyed by format specifier.