[Metafacture] implementation of new morph functions

[Günter Hipler]

Hi,

I want to implement additional morph functions in my own repository and 
deploy them AS packaged jar-files

There is a nice procedure with flux commands which are loaded as plugins 
when they are part of the plugins directory in the metafacture-runner 
repository. The only thing to be done is to write  an additional 
flux-commands.properties file with the new commands.



Metamorph functions in contrast have to be defined in the metamorph.xsd 
schema (    <group name="function">) part of the metafacture-core 
repository.
An additional morph-functions.properties file isn't enough. I get errors 
like:

Exception in thread "main" 
org.culturegraph.mf.exceptions.MetafactureException: class 
org.culturegraph.mf.morph.Metamorph could not be instantiated
<snip....>
Caused by: org.culturegraph.mf.exceptions.MorphDefException: Error 
during DOM creation: Error parsing xml: cvc-complex-type.2.4.a: Invalid 
content was found starting with element 'itemLink'. One of 
'{"http://www.culturegraph.org/metamorph":compose, 
"http://www.culturegraph.org/metamorph":regexp, 
"http://www.culturegraph.org/metamorph":replace, 
"http://www.culturegraph.org/metamorph":substring, 
"http://www.culturegraph.org/metamorph":lookup, 
"http://www.culturegraph.org/metamorph":whitelist, 
"http://www.culturegraph.org/metamorph":blacklist, 
"http://www.culturegraph.org/metamorph":isbn, 
"http://www.culturegraph.org/metamorph":equals, 
"http://www.culturegraph.org/metamorph":not-equals, 
"http://www.culturegraph.org/metamorph":case, 
"http://www.culturegraph.org/metamorph":timestamp, 
"http://www.culturegraph.org/metamorph":dateformat, 
"http://www.culturegraph.org/metamorph":htmlanchor, 
"http://www.culturegraph.org/metamorph":trim, 
"http://www.culturegraph.org/metamorph":split, 
"http://www.culturegraph.org/metamorph":normalize-utf8, 
"http://www.culturegraph.org/metamorph":occurrence, 
"http://www.culturegraph.org/metamorph":constant, 
"http://www.culturegraph.org/metamorph":count, 
"http://www.culturegraph.org/metamorph":urlencode, 
"http://www.culturegraph.org/metamorph":buffer, 
"http://www.culturegraph.org/metamorph":name, 
"http://www.culturegraph.org/metamorph":switch-name-value, 
"http://www.culturegraph.org/metamorph":unique, 
"http://www.culturegraph.org/metamorph":script, 
"http://www.culturegraph.org/metamorph":setreplace, 
"http://www.culturegraph.org/metamorph":java}' is expected.
     at 
org.culturegraph.mf.util.xml.DomLoader$TransformerErrorHandler.handle(DomLoader.java:215)
     at 
org.culturegraph.mf.util.xml.DomLoader$TransformerErrorHandler.error(DomLoader.java:205)
     at 
com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.postErrorToListener(TransformerImpl.java:811)
     at 
com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:754)
     at 
com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:359)
     at org.culturegraph.mf.util.xml.DomLoader.parse(DomLoader.java:113)
     at 
org.culturegraph.mf.morph.AbstractMetamorphDomWalker.walk(AbstractMetamorphDomWalker.java:109)
     at 
org.culturegraph.mf.morph.AbstractMetamorphDomWalker.walk(AbstractMetamorphDomWalker.java:105)
     at org.culturegraph.mf.morph.Metamorph.<init>(Metamorph.java:163)
     at org.culturegraph.mf.morph.Metamorph.<init>(Metamorph.java:108)
     at org.culturegraph.mf.morph.Metamorph.<init>(Metamorph.java:98)
     at org.culturegraph.mf.morph.Metamorph.<init>(Metamorph.java:94)
     ... 15 more
Caused by: javax.xml.transform.TransformerException: Error parsing xml: 
cvc-complex-type.2.4.a: Invalid content was found starting with element 
'itemLink'. One of '{"http://www.culturegraph.org/metamorph":compose, 
"http://www.culturegraph.org/metamorph":regexp, 
"http://www.culturegraph.org/metamorph":replace, 
"http://www.culturegraph.org/metamorph":substring, 
"http://www.culturegraph.org/metamorph":lookup, 
"http://www.culturegraph.org/metamorph":whitelist, 
"http://www.culturegraph.org/metamorph":blacklist, 
"http://www.culturegraph.org/metamorph":isbn, 
"http://www.culturegraph.org/metamorph":equals, 
"http://www.culturegraph.org/metamorph":not-equals, 
"http://www.culturegraph.org/metamorph":case, 
"http://www.culturegraph.org/metamorph":timestamp, 
"http://www.culturegraph.org/metamorph":dateformat, 
"http://www.culturegraph.org/metamorph":htmlanchor, 
"http://www.culturegraph.org/metamorph":trim, 
"http://www.culturegraph.org/metamorph":split, 
"http://www.culturegraph.org/metamorph":normalize-utf8, 
"http://www.culturegraph.org/metamorph":occurrence, 
"http://www.culturegraph.org/metamorph":constant, 
"http://www.culturegraph.org/metamorph":count, 
"http://www.culturegraph.org/metamorph":urlencode, 
"http://www.culturegraph.org/metamorph":buffer, 
"http://www.culturegraph.org/metamorph":name, 
"http://www.culturegraph.org/metamorph":switch-name-value, 
"http://www.culturegraph.org/metamorph":unique, 
"http://www.culturegraph.org/metamorph":script, 
"http://www.culturegraph.org/metamorph":setreplace, 
"http://www.culturegraph.org/metamorph":java}' is expected.
     ... 25 more


At the moment I can't see a possibility to extend the metamorph.xsd in 
my extensions without changing the original schema and compiling the 
metafacture-core by my own.

Any suggestions?


Günter

-- 
UNIVERSITÄT BASEL
Universitätsbibliothek
Günter Hipler
Projekt swissbib
Schönbeinstrasse 18-20
4056 Basel, Schweiz
Tel.: +41 61 267 31 12
Fax: +41 61 267 31 03
E-Mail guenter.hipler at unibas.ch
URL www.swissbib.org

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