How to integrate tabular data into GraphDB automatically?

Question

I want to import tabular (xls) data automatically into GraphDB. OntoRefine suits my case very will with the power of OpenRefine and SPARQL.

Now, i am thinking about the following approach

• New tabular data is available as XLS file
• OntoRefine updates a project or creates a new project automatically
• SPARQL queries against RDFbridge to create new triples
• SPARQL Insert to add this triple

Is there an alternative approach to automate it? If this is the best, how can i update or create a new OntoRefine project automatically (utilizing some kind of API)?