Hi Carsten,
I had this experience too that a flow controller is not easy to build.
But may be you can use a workaroud. You can put a new AE in-between
(BinaryCasReader and Segmenter). This AE would throw an exception when a
(J)Cas doesn't fit your rules. With the UIMA options dropCasOnException
and ActionOnMaxError, UIMA can drop those (J)Cases and go further with
the wanted ones.
Regards
Sumit
On 07/11/14 09:04, armin.weg...@bka.bund.de wrote:
Hi Carsten,
I've never used it, but according to the documentation you can do this with a
flow controller. The bad thing is, Richard told me a while ago that it is not
so easy to build your own flow controller.
Cheers,
Armin
-----Ursprüngliche Nachricht-----
Von: Carsten Schnober [mailto:schno...@ukp.informatik.tu-darmstadt.de]
Gesendet: Donnerstag, 6. November 2014 14:55
An: user@uima.apache.org
Betreff: Filter Cas from UIMA fit pipeline
Hi,
I wonder whether there is a recommended way to remove certain (J)Cas'
(i.e. documents) from a pipeline after reading.
The scenario in my case is that I use a standard reader
(BinaryCasReader) which returns many documents. I only want a subset of
these documents to be processed by the following pipeline (comprising a
segmenter, a writer and some other engines), subject to a certain value
in a custom annotation.
The initial intuition would be to use/implement a reader that only
selects those documents that fulfil the given condition. In my case that
would mean, however, that I'd need to implement a new Reader extending
the BinaryCasReader by the described functionality. From a high-level
view at least, this seems much more complicated than just removing
documents from the pipeline.
Can I avoid that effort somehow without breaking conventions?
Thanks!
Carsten
--
Mit freundlichem Gruß / Best regards
Sumit Madan
Fraunhofer-Institute for Algorithms and Scientific Computing (SCAI)
Schloss Birlinghoven
D-53754 Sankt Augustin
Room: C3-140
Tel.: +49 2241 14 2997
E-mail: sumit.ma...@scai.fraunhofer.de
Internet: http://www.scai.fraunhofer.de/
