[jira] [Commented] (UIMA-3096) A LuCas extension that allows ro index the Lucene documents created by LuCas into a Solr server.

["Tommaso Teofili (JIRA)" <de...@uima.apache.org>]

    [ https://issues.apache.org/jira/browse/UIMA-3096?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13715247#comment-13715247 ] 

Tommaso Teofili commented on UIMA-3096:
---------------------------------------

bq. Is it a good idea to place the class(es) directly into LuCas?

I'm not 100% sure, it may be a bit confusing, on the other hand moving it to SolrCas would add the dependency to LuCas there so in the end it probably makes sense to keep it in LuCas (considering also such dependencies are not that "heavy").
                
> A LuCas extension that allows ro index the Lucene documents created by LuCas into a Solr server.
> ------------------------------------------------------------------------------------------------
>
>                 Key: UIMA-3096
>                 URL: https://issues.apache.org/jira/browse/UIMA-3096
>             Project: UIMA
>          Issue Type: Improvement
>          Components: Sandbox-Lucas
>    Affects Versions: 2.4.0Addons
>            Reporter: Erik Faessler
>            Priority: Minor
>         Attachments: lucasToSolr.patch
>
>   Original Estimate: 4h
>  Remaining Estimate: 4h
>
> Add a UIMA component extending LuceneDocumentAE that converts the Lucene document instances created by LuCas into Solr's PreAnalyzed field format (http://wiki.apache.org/solr/PreAnalyzedField). The converted documents are then sent in batches to Solr using the SolrJ API.
> On the Solr side, PreAnalyzedUpdateProcessorFactory (http://lucene.apache.org/solr/4_3_1/solr-core/org/apache/solr/update/processor/FieldMutatingUpdateProcessorFactory.html) can be used to restrict the pre-analyzed field values to an existing Solr schema. In case that the LuCas mapping file matches the Solr schema, it is easy as this:
> In solrconfig.xml, add this updateRequestProcessorChain:
>  <updateRequestProcessorChain name="pre-analyzed-json">
>     <processor class="solr.PreAnalyzedUpdateProcessorFactory">
>       <str name="fieldRegex">.*</str>
>       <str name="parser">json</str>
>     </processor>
>     <processor class="solr.RunUpdateProcessorFactory" />
>   </updateRequestProcessorChain>
> Then, add this chain to the default update handler:
> <requestHandler name="/update" class="solr.UpdateRequestHandler">
>        <lst name="defaults">
>          <str name="update.chain">pre-analyzed-json</str>
>        </lst>
>   </requestHandler>

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