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From "Geert Josten" <geert.jos...@daidalos.nl>
Subject RE: unpack/unizp a complete zip file?
Date Mon, 28 May 2007 15:22:24 GMT
Hi,

It was a rather short and quick answer, but yes, depending on the
component that extracts the files and writes them, it is in principle
possible to extract all types of files. SourceWriting component however
uses XML/DOM as intermediate, so that component is unuseable as it is.
(At least how it was around versions 2.1.4 - 2.1.6..)

The SaveFiles transformer however is exactly written for this task. It
doesn't cache anything, it redirect an inputstream to an outputstream
internally and is therefore capable of handling binary. Only the outcome
(fail or success) is passed to cocoon as xml. More about it on wiki:
http://wiki.apache.org/cocoon/SaveFilesTransformer

My zipsource produces on long xml with the full contents. One xsl pass
converts this to savefiles instruction sheet, just a long list of
save:file elements with a src and a target attribute. These can be
processed in a single pass with the transformer. The end result of this
transform can be used to produce a fail/success report.

One final note on Cocoon Actions, the alternative on which Joerg
Heinicke responded:
be aware of the moment on which actions are executed. Regardless of
where they are called within a request-chain, they are always executed
_before_ the actual processing in a pipeline. This is only important if
you intend to process the files with the same request that also extracts
the files. It might be very useful, but can be a bottle-neck just as
easily.

Kind regards,
Geert

> -----Original Message-----
> From: HGENTO [mailto:h-gent-o@freenet.de] 
> Sent: vrijdag 25 mei 2007 15:59
> To: users@cocoon.apache.org
> Subject: Re: unpack/unizp a complete zip file?
> 
> Thank you for your answer ,
> 
> but I'm a little bit confused, would this methode also work, 
> if the zip file contains not only xml-files but also 
> pictures. For example ein Open Document Writer file. I would 
> like to have a methode where I can unpack the full odt files.
> 
> Best regards,
> H.
> 
> Geert Josten wrote:
> > Hi,
> >
> > I extended the ZipSource component to accept zip-protocol patterns 
> > without the addition of special files. But the Source is 
> supposed to 
> > produce content and you cannot produce the literal zip 
> contents, so I 
> > chose to produce a dir-listing of the zip. I use that to 
> generate new 
> > zip-url's that exhaustingly point to all files inside zip. 
> Processing 
> > that list with a component like savefiles or writesource 
> should result 
> > in extraction of a complete zip.
> >
> > HTH,
> > Geert
> >
> >   
> >    
> >  
> > Drs. G.P.H. Josten
> > Consultant
> >  
> >  
> >
> > Daidalos BV
> > Source of Innovation
> > Hoekeindsehof 1-4
> > 2665  JZ  Bleiswijk
> > Tel.: +31 (0) 10 850 1200
> > Fax: +31 (0) 10 850 1199
> > www.daidalos.nl
> > KvK 27164984
> >
> >
> > De informatie - verzonden in of met dit emailbericht - is 
> afkomstig van Daidalos BV en is uitsluitend bestemd voor de 
> geadresseerde. Indien u dit bericht onbedoeld hebt ontvangen, 
> verzoeken wij u het te verwijderen. Aan dit bericht kunnen 
> geen rechten worden ontleend.
> >  
> >
> >   
> >> From: HGENTO [mailto:h-gent-o@freenet.de]
> >> Sent: vrijdag 25 mei 2007 13:52
> >> To: users@cocoon.apache.org
> >> Subject: unpack/unizp a complete zip file?
> >>
> >> Hi,
> >>
> >> how can I unzip a zip file with an sitemap instruction. I 
> have access 
> >> to a special file with zip:/file.zip!/file.xml but I would like to 
> >> have an instruction to unzip the complete file.zip. Is 
> there a easy 
> >> way to do so in Cocoon 2.1.? I did't found a answer on 
> wiki as well 
> >> as apache cocoon homepage.
> >>
> >> Regards,
> >> Holger
> >>
> >> 
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> >>
> >>     
> >
> > 
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> >
> >
> >   
> 
> 
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