Make Resources in ServiceMix-Saxon smart enough to reload themselves
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Key: SM-1705
URL: https://issues.apache.org/activemq/browse/SM-1705
Project: ServiceMix
Issue Type: New Feature
Components: servicemix-saxon
Affects Versions: servicemix-saxon-2008.01
Reporter: Jon Brisbin
Priority: Minor
It would be nice if the XSLT and XQuery resources inside the Saxon SE could
monitor themselves for modifications and reload the Source when that event
happens. This would work easily for file:/// resources (and classpath: for that
matter, since Spring IO gives you the modification time of the jar file in
which the resource lives), but other protocols would have to be fetched and
hashed to tell if they've changed or not.
I've implemented a simple patch against trunk that allows you to add a "reload"
attribute to the saxon:xslt element that tells it to always reload the
resource. This isn't ideal, but will work for all URL types that Resource
handles. Anything more smart would have to be multi-threaded, like a File
watcher.
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