net.logAnalyzer.patternParser
Class PatternParser

java.lang.Object
  net.logAnalyzer.patternParser.PatternParser

public class PatternParser

extends java.lang.Object

This class parses a log4j PatternLayout pattern.

The pattern could contain log4j basic converters, but also custom converters.

Each pattern is declared in the <logana:converters> section of the configuration file loaded by ConfigurationManager.

Version:

0.1

Author:

Karim REFEYTON

Field Summary

protected static char	CLOSED_BRAKET
protected static char	CONVERTER_PREFIX
protected static char	OPENED_BRAKET

Constructor Summary

PatternParser(java.lang.String pattern)
Default constructor.

Method Summary

int	getLinesToRead() Returns the number of lines to read from the log file to parse a log messageLabel.
LAConverter[]	parse() Parses the pattern char by char.

Methods inherited from class java.lang.Object

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

Field Detail

CONVERTER_PREFIX

protected static final char CONVERTER_PREFIX

See Also:

Constant Field Values

OPENED_BRAKET

protected static final char OPENED_BRAKET

See Also:

Constant Field Values

CLOSED_BRAKET

protected static final char CLOSED_BRAKET

See Also:

Constant Field Values

Constructor Detail

PatternParser

public PatternParser(java.lang.String pattern)

Default constructor.

Parameters:

pattern - Pattern to analysis.

Method Detail

parse

public LAConverter[] parse()
                    throws PatternParsingException

Parses the pattern char by char. The pattern is transformed as a column list.

Throws:

PatternParsingException

getLinesToRead

public int getLinesToRead()

Returns the number of lines to read from the log file to parse a log messageLabel. For example, if a log4j pattern contains a %n converter inside (not at the end), the number of lines is 2.

Returns:

The number of line to read in a log file.