nl.inl.blacklab.indexers

Class MetadataFetcherCgnImdi

java.lang.Object

nl.inl.blacklab.index.MetadataFetcher

nl.inl.blacklab.indexers.MetadataFetcherCgnImdi

All Implemented Interfaces:

Closeable, AutoCloseable

public class MetadataFetcherCgnImdi
extends MetadataFetcher

Example of a metadata fetcher, a class used to fetch metadata from an external source in case it's not included in the documents. This class fetches the metadata from a ZIP file with a certain structure (specific to the CGN corpus), but it should be easy to adapt to your own needs. Note that for accessing large ZIP files, you need Java 7 which supports the ZIP64 format, otherwise you'll get the "invalid CEN header (bad signature)" error)

Field Summary

Fields inherited from class nl.inl.blacklab.index.MetadataFetcher

docIndexer

Constructor Summary

Constructors

Constructor and Description
MetadataFetcherCgnImdi(DocIndexer docIndexer)

Method Summary

Modifier and Type	Method and Description
void	addMetadata() Fetch the metadata for the document currently being indexed and add it to the document as indexed fields.
void	close() Close the fetcher, releasing any resources it holds

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MetadataFetcherCgnImdi

public MetadataFetcherCgnImdi(DocIndexer docIndexer)

Method Detail

close

public void close()

Description copied from class: MetadataFetcher

Close the fetcher, releasing any resources it holds

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class MetadataFetcher

addMetadata

public void addMetadata()

Description copied from class: MetadataFetcher

Fetch the metadata for the document currently being indexed and add it to the document as indexed fields.

Specified by:

addMetadata in class MetadataFetcher