jlibs.core.util.logging
Class AnsiFormatter

java.lang.Object
  java.util.logging.Formatter
      jlibs.core.util.logging.AnsiFormatter

public class AnsiFormatter
extends Formatter

This is an implementation of Formatter, to use ansi colors in logging.

Example Usage:

 Logger logger = LogManager.getLogManager().getLogger("");
 logger.setLevel(Level.FINEST);

 Handler handler = logger.getHandlers()[0];
 handler.setLevel(Level.FINEST);
 handler.setFormatter(new AnsiFormatter());

 for(Level level: map.keySet())
     logger.log(level, "this is "+level+" message"); * 

This class has public final constants to access Ansi instance used for each level.
These constants are made public, so that you can use them any where. for example you can do:

 import static jlibs.core.util.logging.AnsiFormatter.*;

 SEVERE.out("User authentication failed");
 

The colors used by AnsiFormatter for any level can be changed to match you taste. To do this you need to create a properties file.
for example:

 # myansi.properties
 SEVERE=DIM;RED;GREEN
 WARNING=BRIGHT;RED;YELLOW
 

Now use following system property:

 -Dansiformatter.default=/path/to/myansi.properties
 

Each entry in this property file is to be given as below:

 LEVEL=Attribute[;Foreground[;Background]]
 

key is the level name;
value is semicolon(;) separated values, where where tokens are attribute, foreground and background respectively.
if any non-trailing token in value is null, you still need to specify empty value. for example:

 SEVERE=DIM;;GREEN # foreground is not specified
 

In your properties file, you don't need to specify entries for each level. you can specify entries only for those levels that you want to change.

Author:

Santhosh Kumar T

See Also:

Ansi

Field Summary

static Ansi	CONFIG
static Ansi	FINE
static Ansi	FINER
static Ansi	FINEST
static Ansi	INFO
static Ansi	SEVERE
static Ansi	WARNING

Constructor Summary

AnsiFormatter()

AnsiFormatter(Formatter delegate)

Method Summary

String

format(LogRecord record)

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

Field Detail

SEVERE

public static final Ansi SEVERE

WARNING

public static final Ansi WARNING

INFO

public static final Ansi INFO

CONFIG

public static final Ansi CONFIG

FINE

public static final Ansi FINE

FINER

public static final Ansi FINER

FINEST

public static final Ansi FINEST

Constructor Detail

AnsiFormatter

public AnsiFormatter(Formatter delegate)

AnsiFormatter

public AnsiFormatter()

Method Detail

format

public String format(LogRecord record)

Specified by:

format in class Formatter