Log framework

Hi all.

 Im looking for a log framework with configurable levels. Theres any stable and useful? I  browsed the list and didn't find nothing but something like 'every body has its own logging framework'.
 
 I wrote a small logging fwk for my project, but if is any more complete, it would be great.

Thanks.

Hi.

Today I saw this in pharo news http://code.google.com/p/nagare-logger/ and previusly this thread http://forum.world.st/I-would-really-like-to-get-a-structured-logging-framework-for-Pharo-td4630648.html

Early of my last project I saw those (maybe page is obsolete) http://book.pharo-project.org/book/LanguageAndLibraries/LoggingTools... and finally I too made my own log framework, but for next project I want to use something better that of mine.

Regards.

2012/5/29 Santiago Bragagnolo <[hidden email]>

Hi all.

 Im looking for a log framework with configurable levels. Theres any stable and useful? I  browsed the list and didn't find nothing but something like 'every body has its own logging framework'.
 
 I wrote a small logging fwk for my project, but if is any more complete, it would be great.

Thanks.

On 30 May 2012, at 01:56, Santiago Bragagnolo wrote:

>  Im looking for a log framework with configurable levels. Theres any stable and useful? I  browsed the list and didn't find nothing but something like 'every body has its own logging framework'.
>
>  I wrote a small logging fwk for my project, but if is any more complete, it would be great.

There is one logging framework already in your image: Zinc-HTTP-Logging.
It is based on Announcments. Although it is part of Zn, it is general purpose.
What is special is that it logs the process ID as well, which is useful to debug multiprocess applications.
See the Zn documentation for more info.

Sven

Hi all.

 Im looking for a log framework with configurable levels. Theres any stable and useful? I  browsed the list and didn't find nothing but something like 'every body has its own logging framework'.
 
 I wrote a small logging fwk for my project, but if is any more complete, it would be great.

Marcus Denker wrote:

On May 30, 2012, at 10:03 AM, Sven Van Caekenberghe wrote:

 

On 30 May 2012, at 01:56, Santiago Bragagnolo wrote:

   

Im looking for a log framework with configurable levels. Theres any stable and useful? I  browsed the list and didn't find nothing but something like 'every body has its own logging framework'.
I wrote a small logging fwk for my project, but if is any more complete, it would be great.
     

There is one logging framework already in your image: Zinc-HTTP-Logging.
It is based on Announcments. Although it is part of Zn, it is general purpose.
What is special is that it logs the process ID as well, which is useful to debug multiprocess applications.
See the Zn documentation for more info.

   

We should really think about promoting one framework to be the one-and-only to be used in the image itself...

       Marcus

--
Marcus Denker -- http://marcusdenker.de



 

Or a defined API that can be swapped out underneath for different implementations.

I would like a logging mechanism that manipulate objects that then are printed in various format.
The compiler could use such logger

I did not look at the code of toothpick probably extending LoggingEvent should do it.

Stef

On May 30, 2012, at 3:41 PM, Santiago Bragagnolo wrote:

> Ok, i'll take what i need from the marianito's and zn and fork them in an other package, add what i need for massive loggin (like levels of loggin) and make a log-framework.
>
> Any names? clairvoyant :3?
>
> Then, is any easy aspect fwk that could i use for the logger? (sometimes i need just trace runtime, or i dont want to add a log line one by one) that works in pharo 2.0 ? :P?
>
>
> 2012/5/30 Sven Van Caekenberghe <[hidden email]>
>
> On 30 May 2012, at 01:56, Santiago Bragagnolo wrote:
>
> >  Im looking for a log framework with configurable levels. Theres any stable and useful? I  browsed the list and didn't find nothing but something like 'every body has its own logging framework'.
> >
> >  I wrote a small logging fwk for my project, but if is any more complete, it would be great.
>
> There is one logging framework already in your image: Zinc-HTTP-Logging.
> It is based on Announcments. Although it is part of Zn, it is general purpose.
> What is special is that it logs the process ID as well, which is useful to debug multiprocess applications.
> See the Zn documentation for more info.
>
> Sven
>
>
>

Hi again

Im already add several classes to the logger.

http://ss3.gemstone.com/ss/PaulLePulp

the way to use it still primitive, but is a nice draft.


If you look at LogConfiguration configuration (class method) you'll find something like this


    self for:[ :builder |
        builder forClass:LogTestObject
                   useLevel:#info
                   showingLogAs: ('[%pid | %tstmp | %tag] #%class >> %selector' asPatternFormatter)

                   into: Transcript asLogWriter

                   retain:true.

        builder forKey:'default' useLevel:#error.
    ]

then, with LogTestObject, if you send it "error", "warn" or "info", all you send there (blocks, strings, symbols or what-understand-value) will be showed at Transcript. (im didnt test on file or stdout  yet)

Finally retain:true adds the log to LogHolder, which responds to LogHolder instance select:[ :log | log whatYouWantToTest ].

Ill be testing tomorrow and fixing, but, if you want to see and advise me, you are welcome :)

Ok, is 4am, im going to sleep

2012/5/30 Stéphane Ducasse <[hidden email]>

I would like a logging mechanism that manipulate objects that then are printed in various format.
The compiler could use such logger

I did not look at the code of toothpick probably extending LoggingEvent should do it.

Stef

On May 30, 2012, at 3:41 PM, Santiago Bragagnolo wrote:

> Ok, i'll take what i need from the marianito's and zn and fork them in an other package, add what i need for massive loggin (like levels of loggin) and make a log-framework.
>
> Any names? clairvoyant :3?
>
> Then, is any easy aspect fwk that could i use for the logger? (sometimes i need just trace runtime, or i dont want to add a log line one by one) that works in pharo 2.0 ? :P?
>
>
> 2012/5/30 Sven Van Caekenberghe <[hidden email]>
>
> On 30 May 2012, at 01:56, Santiago Bragagnolo wrote:
>
> >  Im looking for a log framework with configurable levels. Theres any stable and useful? I  browsed the list and didn't find nothing but something like 'every body has its own logging framework'.
> >
> >  I wrote a small logging fwk for my project, but if is any more complete, it would be great.
>
> There is one logging framework already in your image: Zinc-HTTP-Logging.
> It is based on Announcments. Although it is part of Zn, it is general purpose.
> What is special is that it logs the process ID as well, which is useful to debug multiprocess applications.
> See the Zn documentation for more info.
>
> Sven
>
>
>

On Thu, May 31, 2012 at 9:21 AM, Santiago Bragagnolo <[hidden email]> wrote:

Hi again

Im already add several classes to the logger.

http://ss3.gemstone.com/ss/PaulLePulp

the way to use it still primitive, but is a nice draft.


If you look at LogConfiguration configuration (class method) you'll find something like this


    self for:[ :builder |
        builder forClass:LogTestObject
                   useLevel:#info
                   showingLogAs: ('[%pid | %tstmp | %tag] #%class >> %selector' asPatternFormatter)

then, with LogTestObject, if you send it "error", "warn" or "info", all you send there (blocks, strings, symbols or what-understand-value) will be showed at Transcript. (im didnt test on file or stdout  yet)

On Thu, May 31, 2012 at 9:21 AM, Santiago Bragagnolo <[hidden email]> wrote:

Hi again

Im already add several classes to the logger.

http://ss3.gemstone.com/ss/PaulLePulp

the way to use it still primitive, but is a nice draft.


If you look at LogConfiguration configuration (class method) you'll find something like this


    self for:[ :builder |
        builder forClass:LogTestObject
                   useLevel:#info
                   showingLogAs: ('[%pid | %tstmp | %tag] #%class >> %selector' asPatternFormatter)

nice :)

                   into: Transcript asLogWriter

What if you want to configure multiple destinies? :D

   great idea, i just thogh about classes, packages and defaults. I'll add a class enumeration and a regular expression. (wait, finally it could be just regular expressions :3, with defaults)

 

                   retain:true.

        builder forKey:'default' useLevel:#error.
    ]

What about moving the configuration elsewhere? :)  Having to change the #configuration method every time is a pain in the ass. 

then, with LogTestObject, if you send it "error", "warn" or "info", all you send there (blocks, strings, symbols or what-understand-value) will be showed at Transcript. (im didnt test on file or stdout  yet)

Finally retain:true adds the log to LogHolder, which responds to LogHolder instance select:[ :log | log whatYouWantToTest ].

didn't get this #retain: part. Maybe I should have a look at the code.

Ill be testing tomorrow and fixing, but, if you want to see and advise me, you are welcome :)

And now you have another thing to post on your blog :3.

 

Ok, is 4am, im going to sleep

2012/5/30 Stéphane Ducasse <[hidden email]>

I would like a logging mechanism that manipulate objects that then are printed in various format.
The compiler could use such logger

I did not look at the code of toothpick probably extending LoggingEvent should do it.

Stef

On May 30, 2012, at 3:41 PM, Santiago Bragagnolo wrote:

> Ok, i'll take what i need from the marianito's and zn and fork them in an other package, add what i need for massive loggin (like levels of loggin) and make a log-framework.
>
> Any names? clairvoyant :3?
>
> Then, is any easy aspect fwk that could i use for the logger? (sometimes i need just trace runtime, or i dont want to add a log line one by one) that works in pharo 2.0 ? :P?
>
>
> 2012/5/30 Sven Van Caekenberghe <[hidden email]>
>
> On 30 May 2012, at 01:56, Santiago Bragagnolo wrote:
>
> >  Im looking for a log framework with configurable levels. Theres any stable and useful? I  browsed the list and didn't find nothing but something like 'every body has its own logging framework'.
> >
> >  I wrote a small logging fwk for my project, but if is any more complete, it would be great.
>
> There is one logging framework already in your image: Zinc-HTTP-Logging.
> It is based on Announcments. Although it is part of Zn, it is general purpose.
> What is special is that it logs the process ID as well, which is useful to debug multiprocess applications.
> See the Zn documentation for more info.
>
> Sven
>
>
>

On Thu, May 31, 2012 at 11:50 AM, Guillermo Polito <[hidden email]> wrote:

On Thu, May 31, 2012 at 9:21 AM, Santiago Bragagnolo <[hidden email]> wrote:

Hi again

Im already add several classes to the logger.

http://ss3.gemstone.com/ss/PaulLePulp

the way to use it still primitive, but is a nice draft.


If you look at LogConfiguration configuration (class method) you'll find something like this


    self for:[ :builder |
        builder forClass:LogTestObject
                   useLevel:#info
                   showingLogAs: ('[%pid | %tstmp | %tag] #%class >> %selector' asPatternFormatter)

what do you mean by PID? Smalltalk processes do not have a PID. You could use identityHash but it could not even be unique.
or is it the PID of the process running the VM?

 

then, with LogTestObject, if you send it "error", "warn" or "info", all you send there (blocks, strings, symbols or what-understand-value) will be showed at Transcript. (im didnt test on file or stdout  yet)

would be awesome to have the possibility to log into stdout also.

--
Mariano
http://marianopeck.wordpress.com

Ok

I' think i just need to add test and then is already usable. ( If you think i must add anything, just say it :)  )


About last changes and configuration:

The last add is pragma support: We have 2 pragmas configuration:

<logConfiguration> That indicates the class method  related know how to manage de log configuration

There is support to usit this way:

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
configurationOfLog
    <logConfiguration>
    ^ [

         :builder |
       builder forClass:LogTestObject
                 useLevel:#info

                 showingLogAs: ('%pih | %tstmp | %tag #%class >> %selector [%log]' asPatternFormatter)
                 into: Transcript asLogWriter
                 holdLogInstances:true.
    ].
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

and this way

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
configurationOfLog: builder
    <logConfiguration>

       builder forClass:LogTestObject
                 useLevel:#info

                 showingLogAs: ('%pih | %tstmp | %tag #%class >> %selector [%log]' asPatternFormatter)
                 into: Transcript asLogWriter
                 holdLogInstances:true.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------


The other pragma is
<logConfigurationAs:#aSymbol >

This pragma says 'hey, forme use the #aSymbol configuration!', such as #default.

then you can go to

LogConfiguration >> configuration class method

and add symbols with named configurations and relate with explicit classes with a simple pragma :)


----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

For other side, the manage of the 'if-the-class-has-not-configuration' is the same, search for the package configuration (that should be added in LogConfiguration >> configuration class method ), and if is not a package configuration, then go for the #default configuration.



Tomorrow ill be adding tests and making a post on my blog with all the functionalities:

Writers available (Memory, File, Stdout, Transcript, CompositeWriter)
Formatters available (Pattern based -the one of the sample- SimpleFormatter and CustomFormatter)
Filters available (the one who says how to decides if the log must be showed or just skiped -- CategoryFilter and LevelFilter. )
Holder ( an object which stores LogEntity objects - an object very much richier than the string stored for MemoryWriter)

And ill add to the post how to write nice configurations with the existing code and, of course, how to add functionality in the way i thought the framework.


Again, the idea of this framework is to be used for all and have just one logger, so, please, if any one think i must add or change something, share it here. And if any wants to get his hands on the code the same, just say it.