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From: =?utf-8?Q?Jan_H=C3=B8ydahl_=28JIRA=29?= <jira@apache.org>
To: dev@lucene.apache.org
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Subject: [jira] [Updated] (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 updated SOLR-1979:
------------------------------

    Description:=20
Language identification from document fields, and mapping of field names to=
 language-specific fields based on detected language.

Wrap the Tika LanguageIdentifier in an UpdateProcessor.

  was:
We need the ability to detect language of some random text in order to act =
upon it, such as indexing the content into language aware fields. Another u=
secase is to be able to filter/facet on language on random unstructured con=
tent.

To do this, we wrap the Tika LanguageIdentifier in an UpdateProcessor. The =
processor is configurable like this:

{code:xml}=20
  <processor class=3D"org.apache.solr.update.processor.LanguageIdentifierUp=
dateProcessorFactory">
    <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 langu=
age identification and output the ISO code for the detected language in the=
 outputField. If no language was detected, fallback language is used.


> 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, SOLR-1979.patch
>
>
> Language identification from document fields, and mapping of field names =
to language-specific fields based on detected language.
> Wrap the Tika LanguageIdentifier in an UpdateProcessor.

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