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Subject: Re: Non-linear pipelines
From: Richard Eckart de Castilho <rec@apache.org>
In-Reply-To: <EEA7F3D7-016E-4DAC-8CE8-B6F73D386865@unsilo.com>
Date: Wed, 22 Jun 2016 15:57:36 +0200
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Message-Id: <46996FEF-595C-4A19-9FEB-C5C81B24EB8F@apache.org>
References: <EEA7F3D7-016E-4DAC-8CE8-B6F73D386865@unsilo.com>
To: user@uima.apache.org
archived-at: Wed, 22 Jun 2016 13:57:47 -0000

You could maybe use capabilities to expose which type of information =
your respective components support:

=
https://uima.apache.org/d/uimaj-current/references.html#ugr.ref.xml.compon=
ent_descriptor.aes.capabilities

To realize a custom pipeline topology, you would implement a custom flow =
controller

=
https://uima.apache.org/d/uimaj-current/references.html#ugr.ref.xml.compon=
ent_descriptor.flow_controller

As inspiration, the CapabilityLanguageFlowController may be useful:

=
https://svn.apache.org/repos/asf/uima/uimaj/trunk/uimaj-core/src/main/java=
/org/apache/uima/flow/impl/CapabilityLanguageFlowController.java

Cheers,

-- Richard

> On 22.06.2016, at 15:29, Augusto Ribeiro Silva <ars@unsilo.com> wrote:
>=20
> Hi,
>=20
> I couldn=E2=80=99t find any example on the documentation about the =
definition of non-linear pipelines (not sure this is the right name to =
call it).=20
> What I want to do is something like this:
>=20
> Pipeline: A -> (B or C) -> D
>=20
> So the step A supports two file formats, then depending on the file =
format a normalisation step B or C should be performed. Then D should be =
performed for the result of B and C. How would I go about defining such =
pipeline or if it is even possible to do it.
>=20
> Thanks for the help in advance.
>=20
> Best regards,
> Augusto