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package rsacomb
/* Java imports */
import java.util.HashMap
import tech.oxfordsemantic.jrdfox.Prefixes
import tech.oxfordsemantic.jrdfox.client.{
ConnectionFactory,
ServerConnection,
DataStoreConnection
}
object RDFoxUtil {
def openConnection(
dataStore: String
): (ServerConnection, DataStoreConnection) = {
/* Create local server connection
*/
val serverUrl = "rdfox:local"
val role = ""
val password = ""
val server =
ConnectionFactory.newServerConnection(serverUrl, role, password)
/* Create datastore connection
*/
val parameters = new HashMap[String, String]()
//parameters.put("equality", "noUNA")
server.createDataStore(dataStore, "seq", parameters)
val data = server.newDataStoreConnection(dataStore)
(server, data)
}
def query(
data: DataStoreConnection,
prefixes: Prefixes,
query: String
): Unit = {
println(s"\n{ $query }")
val cursor = data.createCursor(
prefixes,
query,
new HashMap[String, String]()
);
var mul = cursor.open()
while (mul > 0) {
val res0 = cursor.getResource(0)
val res1 = cursor.getResource(1)
println(s"Answer: $res0 $res1")
mul = cursor.advance()
}
cursor.close();
}
def closeConnection(
server: ServerConnection,
data: DataStoreConnection
): Unit = {
server.close();
data.close();
}
} // object RDFox
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