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.
It will first retrieve the RDF from the repository, then convert it to SOLR document format with name fields and update the record in SOLR.
Configuration
The indexer is configured using Spring that can be done using Java bean setter methods. Here is a sample fragment for configuring and using the SolrIndexer:
<!-- 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 Driven POJO (MDP) that manages individual 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="jcrXmlPersist"/>
...
</set>
</constructor-arg>
...
</bean>
