a couple more questions about running FOP

["Robert P. J. Day" <rp...@mindspring.com>]

  a quick followup to my previous posts.  with some quick
testing, i've verified the following regarding using FOP
(at least in my situation, it seems to work):

xercesImpl.jar:  don't appear to need it, since i'm using
	xsltproc to generate the .fo

xml-apis.jar:  don't appear to need that either, FOP runs
	nicely without it in the classpath

batik.jar:  interestingly, even though i'm not doing
	anything with SVG, i have to have batik.jar in the
	CLASSPATH.  what is FOP doing with this if i'm
	not using SVG graphics?

  in other words, for a pretty simple setup, i appear to need
only

	xsltproc	(to generate the .fo)
	fop.jar
	avalon...jar
	batik.jar	(still now sure why)

and the above is enough to produce my .pdf output,
apparently.

  does this sound about right?

rday

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Re: a couple more questions about running FOP

["J.Pietschmann" <j3...@yahoo.de>]

Robert P. J. Day wrote:
> ok, at the risk of sounding dense (but not as dense as i'll sound
> later when i try to add extra fonts to my PDF output :-), what
> precisely is supplied by the xml-apis.jar file?  so the parser
> can be crimson or xerces.  what exactly does xml-apis.jar add to
> this?  one writeup i saw described xml-apis.jar as being necessary
> only for xalan, but that doesn't seem to make sense.

You can just look into it and fetch the JavaDoc for the classes
from the Net.

More explicitely: It contains Java interfaces and a few classes
which as a whole constitute an interface called JAXP 1.1 for
working with XML. There are subsets called SAX (1.0 and 2.0), DOM
(some odd mix of version numbers), JAXP 1.0 and TrAX (no version)
which deal with event based parsing, parsing XML into trees and
manipulating them, implementation independent parser creation
and doing XSLT respectively.

J.Pietschmann


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Re: a couple more questions about running FOP

["Robert P. J. Day" <rp...@mindspring.com>]

On Wed, 23 Jul 2003, Christian Geisert wrote:

> Robert P. J. Day schrieb:
 
> > xercesImpl.jar:  don't appear to need it, since i'm using
> > 	xsltproc to generate the .fo

> No, FOP needs an XML-Parser for parsing the .fo
> Any JAXP1.1 compliant parser should work (JDK1.4 includes Crimson)
> 
> If you look at the output you can see which parser is used
> [INFO] Using org.apache.crimson.parser.XMLReaderImpl as SAX2 Parser

i noticed that a while back, so i assumed that that was what was
happening.  nice to have it clarified though, thanks.  i'll just
make a note to install xerces, just in case other needs come up.
 
> > xml-apis.jar:  don't appear to need that either, FOP runs
> > 	nicely without it in the classpath
> 
> See above (SAX/JAXP is needed)

ok, at the risk of sounding dense (but not as dense as i'll sound
later when i try to add extra fonts to my PDF output :-), what
precisely is supplied by the xml-apis.jar file?  so the parser
can be crimson or xerces.  what exactly does xml-apis.jar add to
this?  one writeup i saw described xml-apis.jar as being necessary
only for xalan, but that doesn't seem to make sense.
 
> > batik.jar:  interestingly, even though i'm not doing
> > 	anything with SVG, i have to have batik.jar in the
> > 	CLASSPATH.  what is FOP doing with this if i'm
> > 	not using SVG graphics?
> 
> Well it just has been done this way ...
> This has already been "fixed" in the redesign.

ok, fair enough.  thanks

rday

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Re: a couple more questions about running FOP

[Christian Geisert <ch...@isu-gmbh.de>]

Robert P. J. Day schrieb:
>   a quick followup to my previous posts.  with some quick
> testing, i've verified the following regarding using FOP
> (at least in my situation, it seems to work):
> 
> xercesImpl.jar:  don't appear to need it, since i'm using
> 	xsltproc to generate the .fo

No, FOP needs an XML-Parser for parsing the .fo
Any JAXP1.1 compliant parser should work (JDK1.4 includes Crimson)

If you look at the output you can see which parser is used
[INFO] Using org.apache.crimson.parser.XMLReaderImpl as SAX2 Parser

> xml-apis.jar:  don't appear to need that either, FOP runs
> 	nicely without it in the classpath

See above (SAX/JAXP is needed)

> batik.jar:  interestingly, even though i'm not doing
> 	anything with SVG, i have to have batik.jar in the
> 	CLASSPATH.  what is FOP doing with this if i'm
> 	not using SVG graphics?

Well it just has been done this way ...
This has already been "fixed" in the redesign.

>   in other words, for a pretty simple setup, i appear to need

If you're using JDK1.4 ..

> only
> 
> 	xsltproc	(to generate the .fo)
> 	fop.jar
> 	avalon...jar
> 	batik.jar	(still now sure why)
> 
> and the above is enough to produce my .pdf output,
> apparently.
> 
>   does this sound about right?

Quite close ;-)

Christian


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