two listeners but only different logging

[ciba <ki...@wipro.com>]

Hi,
I am using two listeners : 
net.sf.antcontrib.perf.AntPerformanceListener
org.apache.tools.ant.listener.Log4jListener

I want all print statements other than 'performance statistics' to be
printed on the console. so that means i cannot use the -logFile option.

How can we implement this differentiated behaviour of listeners in ant? 
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Re: two listeners but only different logging

[Stefan Bodewig <bo...@apache.org>]

On 2010-10-22, ciba wrote:

> I am using two listeners :
> net.sf.antcontrib.perf.AntPerformanceListener
> org.apache.tools.ant.listener.Log4jListener

> I want all print statements other than 'performance statistics' to be
> printed on the console. so that means i cannot use the -logFile option.

> How can we implement this differentiated behaviour of listeners in ant?

I'm afraid you can't because of the way the performance listener is
implemented.  Looking at the code
<http://ant-contrib.svn.sourceforge.net/viewvc/ant-contrib/ant-contrib/trunk/src/main/java/net/sf/antcontrib/perf/AntPerformanceListener.java?view=markup>
you can tell the performance listener to write its information to a file
but there is no way to make it not write to System.out - this means its
output will always end up being sent to the console unless you use a
(different, probably non-existant) logger (not listener) that would
filter out the results.

Stefan

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RE: two listeners but only different logging

[Martin Gainty <mg...@hotmail.com>]

AntPerformanceListener handles log events for ANT events here are the impelemented methods 

public class net.sf.antcontrib.perf.AntPerformanceListener extends java.lang.Obj
ect implements org.apache.tools.ant.BuildListener{
    public net.sf.antcontrib.perf.AntPerformanceListener();
    public void buildStarted(org.apache.tools.ant.BuildEvent);
    public void buildFinished(org.apache.tools.ant.BuildEvent);
    public void targetStarted(org.apache.tools.ant.BuildEvent);
    public void targetFinished(org.apache.tools.ant.BuildEvent);
    public void taskStarted(org.apache.tools.ant.BuildEvent);
    public void taskFinished(org.apache.tools.ant.BuildEvent);
    public void messageLogged(org.apache.tools.ant.BuildEvent);
    public static void main(java.lang.String[]);
}

but the stdout Log appenders you will be sending to are not configurable appenders 
if you desire to send the output to anywhere else other than stdout you would need to implement Log4jListener here is the JavaDoc

Passes build events to Log4j, using the full classname's of the 
generator of
each build event as the category:
build started / build finished - org.apache.tools.ant.Projecttarget started / target finished - org.apache.tools.ant.Targettask started / task finished - the fully qualified classname of 
the taskmessage logged - the classname of one of the above, so if a task 
logs a
  message, its classname is the category used, and so on.
All start events are logged as INFO.  Finish events are either logged
 as
INFO or ERROR depending on whether the build failed during that stage. 
Message
events are logged according to their Ant logging level, mapping directly
 to a
corresponding Log4j level.


ant -listener org.apache.tools.ant.listener.Log4jListener


To use Log4j you will need the Log4j JAR file and a 
'log4j.properties'
configuration file.  Both should be placed somewhere in your Ant
classpath. If the log4j.properties is in your project root folder you 
can
add this with -lib option:


ant -listener org.apache.tools.ant.listener.Log4jListener -lib .


If, for example, you wanted to capture the same information output to
 the
console by the DefaultLogger and send it to a file named 'build.log', 
you
could use the following configuration:


log4j.rootLogger=ERROR, LogFile
log4j.logger.org.apache.tools.ant.Project=INFO
log4j.logger.org.apache.tools.ant.Target=INFO
log4j.logger.org.apache.tools.ant.taskdefs=INFO
log4j.logger.org.apache.tools.ant.taskdefs.Echo=WARN

log4j.appender.LogFile=org.apache.log4j.FileAppender
log4j.appender.LogFile.layout=org.apache.log4j.PatternLayout
log4j.appender.LogFile.layout.ConversionPattern=[%6r] %8c{1} : %m%n
log4j.appender.LogFile.file=build.log

http://ant.apache.org/manual/listeners.html#Log4jListener

Martin 
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> Date: Fri, 22 Oct 2010 04:36:07 -0700
> From: kiran.ciba@wipro.com
> To: user@ant.apache.org
> Subject: two listeners but only different logging
> 
> 
> Hi,
> I am using two listeners : 
> net.sf.antcontrib.perf.AntPerformanceListener
> org.apache.tools.ant.listener.Log4jListener
> 
> I want all print statements other than 'performance statistics' to be
> printed on the console. so that means i cannot use the -logFile option.
> 
> How can we implement this differentiated behaviour of listeners in ant? 
> -- 
> View this message in context: http://ant.1045680.n5.nabble.com/two-listeners-but-only-different-logging-tp3232109p3232109.html
> Sent from the Ant - Users mailing list archive at Nabble.com.
> 
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> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
> For additional commands, e-mail: user-help@ant.apache.org
>