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From: =?utf-8?Q?Jan_H=C3=B8ydahl_=28JIRA=29?= <jira@apache.org>
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Subject: [jira] [Assigned] (SOLR-1979) Create
 LanguageIdentifierUpdateProcessor
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     [ https://issues.apache.org/jira/browse/SOLR-1979?page=3Dcom.atlassian=
.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jan H=C3=B8ydahl reassigned SOLR-1979:
---------------------------------

    Assignee: Jan H=C3=B8ydahl  (was: Grant Ingersoll)

> Create LanguageIdentifierUpdateProcessor
> ----------------------------------------
>
>                 Key: SOLR-1979
>                 URL: https://issues.apache.org/jira/browse/SOLR-1979
>             Project: Solr
>          Issue Type: New Feature
>          Components: update
>            Reporter: Jan H=C3=B8ydahl
>            Assignee: Jan H=C3=B8ydahl
>            Priority: Minor
>         Attachments: SOLR-1979.patch, SOLR-1979.patch, SOLR-1979.patch, S=
OLR-1979.patch
>
>
> We need the ability to detect language of some random text in order to ac=
t upon it, such as indexing the content into language aware fields. Another=
 usecase is to be able to filter/facet on language on random unstructured c=
ontent.
> To do this, we wrap the Tika LanguageIdentifier in an UpdateProcessor. Th=
e processor is configurable like this:
> {code:xml}=20
>   <processor class=3D"org.apache.solr.update.processor.LanguageIdentifier=
UpdateProcessorFactory">
>     <str name=3D"inputFields">name,subject</str>
>     <str name=3D"outputField">language_s</str>
>     <str name=3D"idField">id</str>
>     <str name=3D"fallback">en</str>
>   </processor>
> {code}=20
> It will then read the text from inputFields name and subject, perform lan=
guage identification and output the ISO code for the detected language in t=
he outputField. If no language was detected, fallback language is used.

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