SANSA RDF Reader

Description

SANSA RDF is a library to read RDF files into Spark. SANSA RDF Reader is an extension of io package of SANSA RDF Reader for reading N-Quads, Turtle and RDF/XML serialization formats of RDF.

This package reads N-Quads, Turtle and RDF/XML files and loads them into RDD, DataFrame and GraphX‘s Graph of Spark.

SANSA RDF Spark

The main application class is sansa_rdf.App.
The application requires as application argument:

• path to the input folder containing the data as .nq, .rdf or .ttl (e.g. data/stw.rdf)

Running the application on a Spark

To run the application on a standalone Spark cluster

1. Setup a Spark cluster

2. Build the application with Maven

   cd /path/to/application
   mvn clean package

3. Submit the application to the Spark cluster

   spark-submit \
        --class sansa_rdf.App \
        --master spark://spark-master:7077 \
         target/RDF_Reader-1.0-SNAPSHOT.jar \
        /data/input

   and for running each object individually replace the value of —class with one of sansa_rdf.io.NQuadReader, sansa_rdf.io.TurtleReader or sansa_rdf.io.XmlReader.