MARC Authorities to MADS/RDF RDF/XML

This is an xquery utility to convert MARC/XML Authority records to MADS/RDF and SKOS resources.

The principle elements of this repository are the XQuery modules for converting MARC Authority MARC/XML to MADS/RDF and MADS/RDF to SKOS. Or both.

Additionally, it comes with a few helper executables to use this code with Saxon, BaseX, or MarkLogic.

Warning: The conversion modules themselves are direct/exact copies of the code running behind ID.LOC.GOV. As such, the conversions are specific to our (LC's) needs and the specific application into which the resulting transforms are loaded. It should be relatively easy to take the output from the conversions and remove unwanted information or swap out URIs.

Running

First, set up 'config.sh':

cp bin/config-default.sh bin/config.sh

Modify config.sh to add location of JAVA_HOME and details about chosen executable. For Saxon, this is the location of the Saxon Jar. For MarkLogic, the HTTP end point.

Next, generically, the commands take the following form:

./bin/{executable}.sh {marcxml-file} {model}

marcxml-file is required. It can be an absolute path, relative path, or HTTP location.

model is optional. Possible values are 'madsrdf' or 'skos' or 'all'. Default is 'madsrdf'.

Examples

Saxon

./bin/saxon.sh https://id.loc.gov/authorities/names/n94033669.marcxml.xml
./bin/saxon.sh https://id.loc.gov/authorities/names/n94033669.marcxml.xml skos

BaseX

./bin/basex.sh data/no2021084916.marcxml.xml skos

MarkLogic

Warning: The MarkLogic bash script in this package will write to a REST API modules database. Each time it is run, it will add xquery files to the REST API modules database and delete them afterwards. This is a write/read/delete operation to a database; bear this in mind.

Correct MarkLogic connection information needs to be defined in config.sh.

./bin/ml.sh https://id.loc.gov/authorities/subjects/sh94003571.marcxml.xml

It is also possible to load the modules under src and the process/ml-appserver.xqy to a modules database of your choosing. After which it can be accessed via a URL like: http://hostname:port/ml-appserver.xqy?marcxmluri=http://location/of/marcxml.xml&model=both

Changes

Oct 21 2022
    Wholesale refactored repository.
    Copied, in all LC-specific glory, actual conversion files used behind ID.LOC.GOV.
    Zorba support discontinued. RIP Zorba.
    baseuri no longer supported.

Nov 30 2012
    Added missed subfields for Title output
    Added support for Zorba
    baseuri must be set externally for Saxon (and Zorba).
    Small modification to MARCXML-2-MADSRDF to work with Zorba (original code caused seg fault)

April 2012
    Initial publication.  Support for MarkLogic and Saxon

License

As a work of the United States government, this project is in the public domain within the United States.

Additionally, we waive copyright and related rights in the work worldwide through the CC0 1.0 Universal public domain dedication.

Legal Code (read the full text).

You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.