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A simple RDF transformation module for ENEXA

Goal

The module takes one or more RDF files as input and creates a single RDF file as output. The input files:

  • need to have an RDF serialization that is supported by Apache Jena
  • can be compressed with GZIP or BZip2
  • should have their mime type in the meta data graph; otherwise the transformator will guess the RDF serialization based on the file name

The output file:

  • will contain all triples of the input RDF datasets (no deduplication is done!)
  • will use the given RDF serialization (Note: only streanmable formats are supported, i.e., Turtle, N-Triples, N-Quads and TriG)

Build

Build the enexa-utils Docker image first, then:

make build

That would build a Docker image for this module.

Test

Setup the test environment from enexa-utils first, then:

make test

That would run your module in a dummy environment. The result files would be stored in test-shared-dir. The RDF data would be inserted to a locally running SPARQL store.

Publish new version

When publishing a new version, the pom.xml should be updated before running the following command_

make build push push-latest update-ttl-file

This will build the Docker image with the new version tag and the latest tag. Both will be pushed to the image repository. The last part of the command creates a new module.ttl file. After that, the changes to the module.ttl file should be commited to the main branch of the project.

Developer information

module
A main module script to translate the input and output parameters between ENEXA and the application.
Dockerfile
A Dockerfile for the Docker image of this module.
module.ttl.template
A template that is used to generate the module.ttl file
module.ttl
An automatically generated file describing this ENEXA module. Manual changes will be overwritten by the Makefile.

The documentation is available here. You can find the module documentation here.