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javasparqlgraphdbrdf4j
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Reputation: 37

RDF4J Ontotext GraphDB: prepareUpdate big Sparql-Update String-> Unsupported MIME type: application/x-www-form-urlencoded

Im trying to send a big Sparql-Update String to GraphDB by using RDF4J. It works for small Sparql-Update Strings, but for a big String (ca. 8000 INSERT DATA-Statements) it fails with the HTTP-Exception

org.eclipse.rdf4j.repository.http.HTTPUpdateExecutionException: Unsupported MIME type: application/x-www-form-urlencoded

My RDF4J code looks like this:

HTTPRepository repository = new HTTPRepository("http://localhost:7200", "test");
repository.initialize();
try (RepositoryConnection conn = repository.getConnection()) {
     conn.prepareUpdate(SPARLQString).execute();
}

I already tried to set the Header to "application/sparql-update" but i got the same exception.

Is this behavior intended? How do i work around / fix this issue?

Ive used Fuseki before and never had this Problem.

Upvotes: 1

Views: 402

Answers (1)

Konstantin Petrov
Konstantin Petrov

Reputation: 1140

You could use the HTTPRepository(String repositoryURL) instead and it should work.

HTTPRepository repository = new HTTPRepository("http://localhost:7200/repositories/test");

For update operations the endpoint is /repositories/test/statements.

Upvotes: 1

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