tree 75979ced6eae66e0fb6930b6e4332939a29ab17b
parent bc5d8307a049d37e03da21adf9a25d0d5566abf6
author Marc Kupietz <kupietz@ids-mannheim.de> 1780944430 +0200
committer Akron <nils@diewald-online.de> 1782127859 +0200

Add standalone MetaExporter tool for dumping index metadata

MetaExporter reads the stored per-document metadata of an existing
Lucene index directly from disk and prints selected (or all) fields as
TSV, CSV or line-delimited JSON, without going through the web service
API. This makes it possible to e.g. diff the textSigles of two index
instances to find missing or surplus texts, instead of crawling the
metadata via many slow API requests.

- New main class de.ids_mannheim.korap.index.MetaExporter with options
  -i/--index, -f/--fields, --format, -o/--output, --no-header,
  --multi-sep and --list-fields. The primary-data fields tokens/base are
  always skipped.
- Packaged as a shaded Krill-MetaExporter.jar alongside Krill-Indexer.
- Usage documented in the pom.xml header comment and the class Javadoc.
- TestMetaExporter builds a one-document index from the bzk test
  resources and verifies field listing and TSV/CSV/JSON export.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Change-Id: Ib3394e237cc77dcd04b5edd08b4e7934351796bd