GraphQL + OWL: An “Ontologized” GraphQL Interface
Introduction This article describes a proposal for a GraphQL OWL-compliant interface, including queries and mutations. Instead of dealing with abstract OWL concepts, we reference a popular ontology, BIBFRAME, used in structuring bibliographic descriptions. We will go through a brief synthetic overview of GraphQL and BIBFRAME and then describe the proposal. Note the article has nothing to do […]
Towards a scalable Solr-based RDF Store
SolRDF (i.e., Solr + RDF) is a set of Solr extensions for managing (indexing and searching) RDF data. In a preceding post, I described how to set up a standalone SolRDF instance in two minutes; in this post, I’ll describe how to run SolRDF in a simple cluster. The required steps are similar to what […]
SPARQL Integration tests with SolRDF
The SolRDF Integration Tests Suite
Solr SPARQL Endpoint in Two Minutes
A Solr-backed RDF Store in 2 minutes.
RDF in Solr: HowTo
The Solr built-in UpdateRequestHandler supports several formats of input data. It delegates the actual data loading to a specific ContentStreamLoader, depending on the content type of the incoming request (i.e., the Content-type header of the HTTP request). Currently, these are the available content types declared in the UpdateRequestHandler class: application/xml or text/xml application/json or text/json application/csv or text/csv application/javabin So, a client has several options […]
Integration tests with jena-nosql and Cassandra
Integration tests with jena-nosql and Cassandra In this post I will illustrate the integration tests infrastructure I used for the jena-nosql project on my GitHub account. The core of the project itself is not associated with a specific storage, so a set of integration tests that run towards a (mini)instance of a not-well-known target storage […]
