Hi,
I'm using Cocoon 2.1.10.
I've implemented a class which extends AbstractReader. It uses some
SOAP calls to pull some binary gif image data from a remote system. It
implements CacheableProcessingComponent as well, and my getValidity()
method is simply:
private static final long VALID_FOR = 2 * 60 * 60 * 1000; // 2 hours
public SourceValidity getValidity() {
SourceValidity validity = new
ExpiresValidity(System.currentTimeMillis() + VALID_FOR);
return validity;
}
Some of the products that I'm getting images for don't actually have
images, so in those cases I throw a ResourceNotFoundException from my
generate() method. The cacheing pipeline which serves the image has a
map:handle-errors section which serves up a default image instead.
My problem is that the resource is not cached if I throw a
MissingResourceException. How can I change the way I'm doing this so
that even a "missing resource" response is cached? At the moment,
products with no icons cause the remote system to be hit every time,
and the SOAP calls are quite slow.
The only thing I can think of is to stream the default image data out
of my reader if the product has no image, by directly opening the
default image file from disk inside the reader. Is there a better way?
Thanks
Jon
PS happy christmas everyone!
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