a logging/trace lib for java

[frank]

I was wondering if anyone had or knew of a basic java class/lib to do
tracing/logging of a java program. All I'm looking to do is have a
utility class I guess to replace plain old System.out.println()(save to
a file probably instead) calls in the code. To be able to turn it on or
off and maybe have different levels of logging also. Seems like this is
something others would also need so I thought I would ask before I tried
to build it myself.


Thanks,

Frank

 

[TechBookReport]

I was wondering if anyone had or knew of a basic java class/lib to do
tracing/logging of a java program. All I'm looking to do is have a
utility class I guess to replace plain old System.out.println()(save to
a file probably instead) calls in the code. To be able to turn it on or
off and maybe have different levels of logging also. Seems like this is
something others would also need so I thought I would ask before I tried
to build it myself.


Thanks,

Frank

Two places to look at. The first is the Jakarta Commons Logging project
(http://jakarta.apache.org/commons/logging/). The second is Log4J, also
an apache project (http://logging.apache.org/log4j/docs/).

An even lower tech approach is to point System.out to a file...

HTH
=========================================================================
TechBookReport Java http://www.techbookreport.com/JavaIndex.html

 

[Vova Reznik]

I was wondering if anyone had or knew of a basic java class/lib to do
tracing/logging of a java program. All I'm looking to do is have a
utility class I guess to replace plain old System.out.println()(save to
a file probably instead) calls in the code. To be able to turn it on or
off and maybe have different levels of logging also. Seems like this is
something others would also need so I thought I would ask before I tried
to build it myself.


Thanks,

Frank

package java.util.logging

 

[Roland]

I was wondering if anyone had or knew of a basic java class/lib to do
tracing/logging of a java program. All I'm looking to do is have a
utility class I guess to replace plain old System.out.println()(save to
a file probably instead) calls in the code. To be able to turn it on or
off and maybe have different levels of logging also. Seems like this is
something others would also need so I thought I would ask before I tried
to build it myself.


Thanks,

Frank

A third possibility is Java's own logging system (available for Java 1.4
and later)
<http://java.sun.com/j2se/1.5.0/docs/api/java/util/logging/package-summary.html>
<http://java.sun.com/j2se/1.5.0/docs/guide/logging/index.html>
--
Regards,

Roland de Ruiter
` ___ ___
`/__/ w_/ /__/
/ \ /_/ / \

 

[Simon OUALID]

A third possibility is Java's own logging system (available for Java 1.4
and later)
<http://java.sun.com/j2se/1.5.0/docs/api/java/util/logging/package-summary.html>

<http://java.sun.com/j2se/1.5.0/docs/guide/logging/index.html>

log4j is nice too, but you'll need an extra jar :
http://logging.apache.org/log4j/docs/index.html

 

[Roland]

log4j is nice too, but you'll need an extra jar :
http://logging.apache.org/log4j/docs/index.html

Yep, it contains implementations for several output destinations, such
as SMTP (email), NT eventlog, Unix syslog.
If only logging to a file is required, Java logging would suffice (log4j
also supports logging to a file, of course).
--
Regards,

Roland de Ruiter
` ___ ___
`/__/ w_/ /__/
/ \ /_/ / \

 

[Roland]

There is a program called "trace" that you can use. It prints out whenever
you enter or leave a method.

Where would I find this program. Do you perhaps have a URL.
--
Regards,

Roland de Ruiter
` ___ ___
`/__/ w_/ /__/
/ \ /_/ / \

 

[Lucy]

Where would I find this program. Do you perhaps have a URL.

www.jmonde.org
but when you click on it, it goes immedately to
http://www.geocities.com/mcphailmj/

On-the-fly runtime method tracing for Java applications

Synopsis
org.jmonde.debug.Trace [ options ] class [ argument ... ]