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The FileSerializer listens to the repository generated JMS events generated from the repository to retrieve the RDF and convert metadata it to SOLR document format with name fields and , then persist it to the file system as backups. 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. |
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The FileSerializer serializes the raw SOLR document with name fields that , which is converted from the RDF. The files are stored under the configured directory file.serializer.dir , which is in flat structure with a file name that concatenates the id and the timestamp like id@yyyyMMddHHmmss. |
...
The indexer is configured using Spring that can be done using through the Java bean setter methods. Here is a sample configuration fragment showing how to configure and use itthe FileSerializer:
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<!-- file serializer -->
<bean id="fileSerializer" class="org.fcrepo.indexer.FileSerializer">
<property name="path" value="${file.serializer.dir:./target/test-classes/fileSerializer/}"/>
</bean>
<!-- Message Driven POJO (MDP) that manages individual indexers -->
<bean id="indexerGroup" class="org.fcrepo.indexer.IndexerGroup">
<constructor-arg name="repositoryURL" value="http://${fcrepo.host:localhost}:${fcrepo.port:8080}${fcrepo.context:/}rest" />
<constructor-arg name="indexers">
<set>
...
<ref bean="fileSerializer"/>
...
</set>
</constructor-arg>
...
</bean> |