Carsten Ziegeler wrote:
Reinhard Poetz wrote:
Hmm, yes and no :) Our xslt transformer implementation uses an xslt
processor. So we can define a "static" xalan xslt processor together
with a "static" xalan xslt transformer.
And this works because when the processor bean is created by Spring there is no
need to have Xalan on the classpath. Right?
Hmm, no :) If Xalan would not be on the classpath I guess the xslt
processor would fail. But as Xalan is always included in the jdk, it's
always available (of course this might be different with different jdks).
So, if we provide a "static" xalan xslt processor/xslt transformer
combo, Xalan has to be on the classpath. However, we could implement
these beans in a way that they don't fail during
initialization/configuration if Xalan is not available. They would fail
when they're used. But I'm in favour of fail early here.
I was mislead by the Saxon configuration which is already part of
cocoon-pipeline-components. I overlooked that it is commented out.
And, agreed to "fail early" here.
And we can define a "dynamic" xslt processor (configured through
properties) with an xslt transformer always using this "dynamic" xslt
processor.
If it was a Spring bean we could even use the PropertyOverrideConfigurer instead
of introducing a new property.
Would it be difficult to convert the TraxProcessor into a Spring bean? As it
hasn't been done yet I guess that there is this or that difficulty involved,
isn't it.
The TraxProcessor uses the source resolver to resolve included/imported
stuff and to
handle xslt changes checks. We could convert the processor to a spring
bean and simply
referene the source resolver. It shouldn't be that hard.
I think I'll have a look at this.
Thanks Carsten. My next item on my Cocoon 2.2 list is working on the
documentation again but then I think I will factor out Xalan into a separate
core module in order to avoid shipping a 2.7mb library with my applications that
would be unused.
--
Reinhard Pötz Independent Consultant, Trainer & (IT)-Coach
{Software Engineering, Open Source, Web Applications, Apache Cocoon}
web(log): http://www.poetz.cc
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