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From Jose Alberto Fernandez <>
Subject RE: Why does the echo task output to System.out? (Was: RE: [submi t] I ntegration of Ant into Visual Age for Java)
Date Sat, 18 Nov 2000 02:27:24 GMT
> From: Simeon Fitch []
> --- Jose  Alberto Fernandez <> wrote:
> > > From: Simeon Fitch []
> > 
> > what does this means?
> > 
> >   <echo message="my message" output="myfile" loglevel="info" /> 
> I would interpret it as meaning "send the message 'my message' to the
> output file 'myfile' and also log it to the logger at the log level
> 'info'". Now that you express it that way, I think I like 
> being able to do
> both like that. It seems a pretty straight forward way of 
> expressing it.

By that definition then:

 <echo message="my message" output="myfile" />

this will log the message to the logger, eventhough I wanted to write a
This is so, because you are defining echo as having default loglevel

So the above is equivalent to:

 <echo message="my message" output="myfile" loglevel="warn" />

how do I say just write this to the file!!!

> > 
> > On the other hand:
> > 
> >   <log message"my message" loglevel="info" />
> > 
> > says log the message at loglevel info, which is not 
> depending on anything
> > the message is always sent and it is upto the logger 
> infrastructure to
> > decide if the
> > message will be filtered out or not.
> How is this any different than just saying 
>    <echo message"my message" loglevel="info"/>
> i.e. functionally they are synonomous.

My point is to separate the behaviours that you are now clupting together!!

> > 
> > I can imagine ANT bradcasting to multiple loggers each one 
> with its own
> > loglevel. So for example the embedded GUI console do not 
> gets all the
> > tracing, but a the debug file will.
> I guess I prefer to see the "output" and "loglevel" 
> attributes as separate
> handlers for the same <echo> operation. So, if a target had 
> the following
> in it:
>     <echo message="I'm in the foo target." output="debug.log"
>     loglevel="debug"/>
> Then this message would definately go to the file 
> "debug.log", and show up
> on the GUI console if the filtering level was set to "debug".

Every time people clump together to different tasks into one just because 
it is easy, I looks to me like a hack. One thing is to log something
a different thing is to write the content of a file as part of the
build. In particular <echo> is used to create property files and so on
why would such file contents go to the log subsystem.

Jose Alberto

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