Le 20/06/2017 à 12:12, Alexander Herr a écrit :
So after a lot of debugging I managed to make it “compile and run”.
Let me vent here a little bit and rant about Java: Errors in Java are
an abomination and whoever thought that any of these extremely verbose
but content-deflated debugging outputs are of any use to anyone trying
to find the problem as fast as possible should get publicly flailed.
</rant>
Having said that, I have found out a little about the way javascript
works in JSC and I am writing this here, so other people might use it
as a reference:
-Of course, functions defined in an external js-file _/can/_ have
arguments, so you can pass variables from beans within lsc.xml, i.e.
js:generateEduPersonAffiliation(srcBean.getDatasetValuesById("eduPersonPrimaryAffiliation"))
-The javascript usable is a pretty standard one, so don’t expect fancy
and/or new functions. Suffice it to say, the javascript is dependent
on your Java installed, so there you are. As an advice, the more basic
your javascript code, the better. Trust me, some error outputs can be
extremely misleading and won’t help you debug the problem. Better keep
that in mind and keep your code simple.
-Most interestingly: Not everything you code in your js-file will be
javascript! Some can be Java! For instance, in the above example
srcBean.getDatasetValuesById("eduPersonPrimaryAffiliation") will
return a Java-Array (thus you have to use Java-Methods), even though
you use it in javascript. Keep that in mind!
Hope that helps another person at some point.
Indeed, LSC uses the javascript interpreter provided by your JVM. You
can force the use of Rhino by using rjs:, or even choose Groovy with gr:.
See https://lsc-project.org/documentation/latest/scripting/start
--
Clément OUDOT
Consultant en logiciels libres, Expert infrastructure et sécurité
Savoir-faire Linux
137 boulevard de Magenta - 75010 PARIS
Blog: http://sflx.ca/coudot
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