Using eForms Mapping Packages
The mapping packages provided in this project are to be used within the version 2 of th TEDSWS Conversion Pipeline. The pipeline documentation describes how such packages will be loaded and used in the transformation steps of the pipeline.
Below we provide some additional technical information about how these packages can be used outside or inside the pipeline.
Software Requirements
Users need only to install the following external software tools, libraries and/or runtimes if developing and testing the RML mappings:
-
Java 11+ (tested up to 17)
-
RMLMapper-Java==v6.2.2
RMLMapper is currently tied to v6.2.2 because of an issue with conditional instantiation (currently fixed but yet unreleased).
Toolchain
No custom tooling
While there is a comprehensive set of command-line software tools for the SF mapping project, there is no such tooling provided for the eForms mapping project. The complete transformation cycle is supported in and carried out already by the pipeline.
RMLMapper for development
For development, simple RMLMapper commands (which the SF tools use) can be employed directly, for example:
rmlmapper -m $MAPPINGS_FOLDER/* -s turtle > $OUTPUT_FILEwhere the $MAPPING_FOLDER is a folder with RML files, and
$OUTPUT_FILE is the desired RDF output file, usually suffixed with the .ttl
extension (for the Turtle serialization as provided with the -s argument).
The RML rules expect a data file path data/source.xml relative to where this
command is run from. In the current package structure, this implies that a
temporary data folder is created next to the test_data folder with a
desired test data file (whether or not already bundled in the package) copied
as source.xml, under mappings/$PACKAGE_FOLDER:
mappings
mappings/package_cn_v1.9
mappings/package_cn_v1.9/data
mappings/package_cn_v1.9/data/source.xml
mappings/package_cn_v1.9/test_data
mappings/package_cn_v1.9/test_data/sdk_examples_cn
mappings/package_cn_v1.9/test_data/sdk_examples_cn/cn_24_maximal.xml
...Note: Currently this transformation execution requires an Internet connection, due to the URI construction involving a remote HTTP web API call for generating a seeded hash.
