> >> Well, chainsaw already acts as a prety good socket listener.
> I know chainsaw, but we need more.
Well, chainsaw is open source - what about using it as a starting point and
expanding it to include what you want?
> >> But if I understand you correctly, you want the socket listener
> >> its
They are used a little in one of the contrib programs - I think the socket
listener example. Also the NumberCruncher stuff uses them a bit (included on
the log4j source). But I agree, a better documented example would be nice
sam
- Original Message -
From: "Robert Hayes" <[EMAIL PROTECTED
Well, chainsaw already acts as a prety good socket listener. But if I
understand you correctly, you want the socket listener itself to then re-log
messages to various sources? Why not just have this done in the first place,
rather than going thorugh the overhead of relogging the same messages?
Any
yes - if the appender you're using implements AppenderSkeleton (most/all
ofthe provided Appenders do). In this case you call the setThreshold()
method. For more details check AppenderSkeleton docs here:
http://jakarta.apache.org/log4j/docs/api/org/apache/log4j/AppenderSkeleton.h
tml
hope this hel
Gotcha. Sorry if I was appering thick :-). From looking at the code, I
couldn't see the expected category.disable or similar method (or am I
wrong?) so I guess the only way to disable the logging to a category would
be to either wrap the use of the category with your own code (e.g. check is
activi
I am still unsure as to what exactly you mean by channels - its a term I'm
unfamiliar with in a logging context after having used both log4j and Jlog.
Do you mean a channel in as much as being able to determine exactly where a
log message came from, e.g. this DEBUG message came from User X? If so
errnot sure if I understand you Ceki? As far as I can see I am sending
plain text to the list - at least thats what Outlook says
sam
- Original Message -
From: "Ceki Gülcü" <[EMAIL PROTECTED]>
To: "LOG4J Users Mailing List" <[EMAIL PROTECTED]>
Sent: Thursday, July 26, 2001 12:28 P
My guess is that what should be done is that
LoggingEvent should overide the serialization methods (writeObject &
readObject) to use introspection to see of the message field's class implements
the Serializable method. If so it gets written, if not it doesn't. This should
only be a 30minute
You will of course need a decent ssocket server to view the events. Chainsaw
is good (look on the downloads section on the log4j site) but apparently
there are some associated performance issues, however someone suggested a
fix for these on this list earlier (check a thread about 3 weeks back on
S
Surely though you are only sending the string representation if you actually
make your message a string? You can send any object you like as the message,
e.g. cat.warn(new Integer()) or whatever. You then use the ObjectRenderers
to convert this to a string representation. I could easily see you se
Title: RE: Multiple Appenders
The only way I can think of doing that would be to
define 2 priority levels of your own choosing both with the same priority level
- the use of prioritys with appenders explicitly says it will include all
priorties and above because as far as its concerned nothin
Is it worth including Mark's excellent example of using multiple Categories
in the FAQ?
sam
- Original Message -
From: <[EMAIL PROTECTED]>
To: "LOG4J Users Mailing List" <[EMAIL PROTECTED]>
Sent: Wednesday, July 25, 2001 3:34 PM
Subject: Re: Multiple Appenders
>
> First thing the use of
Naresh,
I've just found this alternative to logging to different appenders given the
priority - it comes straight from the log4j FAQ
(http://jakarta.apache.org/log4j/docs/FAQ.html#filterByPriority to be exact)
I should of checked it eariler myself!:
"Setting the Threshold option of any appender
Currently I use log4j via an abstracted static class. I have a method called
warn, which does the following (it is a little aprroximated - don't have the
code in from of me):
public void warn(Class class, String message) {
Category cat = Category.getInstance(class.getName());
cat.warn(message
In as much as you can specify the priority level of a category from a
proprties file, then yes. If you set the priortiy of a category catA to only
log WARN level stuff, catA.debug() would still work, you just wouldn't get
any output.
sam
- Original Message -
From: "Naresh Sharma" <[EMAIL
My understanding is that a priority level applies to the category, not the
appenders. What about using 2 categories for the same hierarchy (I asume
root), and then attach the FileAppender to one, and the SMTPAppender to the
other?
I actually want to use 2 categories for the same classes hierarchy
The source code for the XMLFileAppener is included with the distribution.
You could edit it I guess this file and rename it or something
(WellFormedXMLFileAppender?) - shouldn't be too hard.
sam
Krishnamurthy, Balaji (MED) Wrote:
>
> Hi folks,
>
> I started using log4j recently and have starte
You might want to try looking in the contrib directory in the distro. Its
not specifically mentioned in the documentation (at least not that I could
see), and it could do with a better index, but it might contain an example
for you (I think its under the root on the installation, or perhaps under
ok - what I would suggest is to clear the file is that you:
1.) Disable the file appender
2.) Delete/move the file
3.) Renable the file appender
You may of course potentially loose some logging info using this method if
your application is multi-threaded.
sam
- Original Message -
From: "
I'm not 100% sure what it is you want If you want to move the file
before you start logging (e.g. you want to backup an old log before logging
new information) then simply move the file before you configure logging. If
you want to clear the file during the execution of the program, then
couldn
> >> Will this help in logging messages to same logfile in an appserver
> >> environment ( message: "Multiple JVMs writing to one log file"). For
> >> the
> >> same reason, i've used the static initializer to configure the logging
> >> environment. Does this approach have any flaws?
>
> Well yes
I simply pass in the class of the object/static calling the abstract
logger - e.g. LogFactory.getInstance().error(this.getClass(), "error!");
sam
- Original Message -
From: <[EMAIL PROTECTED]>
To: "LOG4J Users Mailing List" <[EMAIL PROTECTED]>
Sent: Tuesday, July 17, 2001 5:56 PM
Subject:
Hmm, that hits the boundary of my knowledge - I don't know anything about
the JMSAppender itself! The problem I guess is that log4j is specifically
designed not to throw exceptions, and it doesn't look like you can
interogate an Appender to determine its state. All I can guess is that you'd
want t
Sorry if I've missed the point of your email, or if any of this is super
obviousbut anyhoo.
I wrap my use of log4j up in a singleton object (implementing my interface
Logger), e.g. I do something like this:
Logger logger = Log4jLogger.getInstance();
getInstance() returns the only instance o
Out of interest, what happens if I configure Log4j multiple times - e.g. if
I called a PropertyConfigurator.configure twice, but using different
properties?
sam
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Thanks for everyones help. Oliver sent me a program he uses to test Chainsaw
and it works fine. Now all I have to do if find out why mine doesn't work -
and now I have a working program to compare my code to it should be very
easy. I've moved to using a PropertiesConfigurator in anycase now, so it
Hi all,
I wanted to create a simple test program to try out the SocketAppender class
in log4j. I decided to use the Chainsaw program to view to log events. I
created 2 appenders, one console appender, and one socket appender. The
socket appender is setup on the same port as chainsaw (in this inst
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