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

["Erik Faessler (JIRA)" <de...@uima.apache.org>]

     [ https://issues.apache.org/jira/browse/UIMA-3096?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Erik Faessler updated UIMA-3096:
--------------------------------

    Attachment: lucasToSolr.patch

This patch is a working realization of the issue's description. It adds some new dependencies to the project, viz. solrj 4.3.1, commons-lang3 and gson 2.1. There are currently no tests or documentation but could be delivered within the specified time constraints for the issue.
Opinions? Is it a good idea to place the class(es) directly into LuCas? Could users get confused about whether to use this AE or rather the existing SolrCAS AddOn? I just wrote this for my own work and would be glad to share it, if desired.
                
> 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: 2.3.1Addons
>            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>

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira