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The SolrIndexer listens to the repository JMS events to update the records in SOLR. It implements the org.fcrepo.indexer.Indexer interface for the indexing functionalities, which consists of the methods to handle new/updated records and deleted records. |
The indexer will retrieve retrieves the record in RDF from format from the repository and convert it to converts the RDF to the SOLR document format with name fields, and then updates the record in it in SOLR.
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To use the SolrIndexer, please download and install SOLR. |
Configuration
The SolrIndexer is indexer is configured using with Spring that can be done using Java bean setter methods. Here is a sample fragment for configuring and using itthe SolrIndexer:
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<!-- Solr Indexer -->
<bean id="solrIndexer" class="org.fcrepo.indexer.solr.SolrIndexer">
<constructor-arg ref="solrServer" />
</bean>
<!-- Standardalone solr Server used by the Solr indexer -->
<bean id="solrServer" class="org.apache.solr.client.solrj.impl.HttpSolrServer">
<constructor-arg index="0" value="http://${fcrepo.host:localhost}:${solrIndexer.port:8983}/solr/" />
</bean>
<!-- Message MainDriven indexerPOJO class(MDP) that processesmanages events,individual gets RDF from the repository and calls the workers indexers -->
<bean id="indexerGroup" class="org.fcrepo.indexer.IndexerGroup">
<constructor-arg name="repositoryURL" value="http://${fcrepo.host:localhost}:${fcrepo.port:8080}${fcrepo.context:/}rest" />
<constructor-arg name="indexers">
<set>
...
<ref bean="jcrXmlPersistsolrIndexer"/>
...
</set>
</constructor-arg>
...
</bean> |