public void ItThrowsAnExceptionIfOneEndpointFails()
{
var endpoint = new FederatedSparqlRemoteEndpoint(new []
{
new SparqlRemoteEndpoint(new Uri(_fixture.Server1.Urls[0] + "/query")),
new SparqlRemoteEndpoint(new Uri(_fixture.Server2.Urls[0] + "/fail")),
});
Assert.Throws <RdfQueryException>(() => endpoint.QueryWithResultSet("SELECT * WHERE { ?s ?p ?o }")).InnerException.Should().BeOfType <RdfQueryException>();
}
public void ItCombinesResultsFromFederatedEndpoints()
{
var endpoint = new FederatedSparqlRemoteEndpoint(
new[]
{
new SparqlRemoteEndpoint(new Uri(_fixture.Server1.Urls[0] + "/query")),
new SparqlRemoteEndpoint(new Uri(_fixture.Server2.Urls[0] + "/query")),
});
var results = endpoint.QueryWithResultSet("SELECT * WHERE {?s ?p ?o}");
results.Should().NotBeNull().And.HaveCount(2);
}
public void ItThrowsAnExceptionIfOneEndpointTimesOut()
{
var endpoint = new FederatedSparqlRemoteEndpoint(new[]
{
new SparqlRemoteEndpoint(new Uri(_fixture.Server1.Urls[0] + "/query")),
new SparqlRemoteEndpoint(new Uri(_fixture.Server2.Urls[0] + "/timeout")),
})
{
Timeout = 2000
};
Assert.Throws <RdfQueryTimeoutException>(() => endpoint.QueryWithResultSet("SELECT * WHERE { ?s ?p ?o }"));
}
public void ItAllowsTimeoutsToBeIgnored()
{
var endpoint = new FederatedSparqlRemoteEndpoint(new[]
{
new SparqlRemoteEndpoint(new Uri(_fixture.Server1.Urls[0] + "/query")),
new SparqlRemoteEndpoint(new Uri(_fixture.Server2.Urls[0] + "/timeout")),
})
{
Timeout = 2000, IgnoreFailedRequests = true
};
var results = endpoint.QueryWithResultSet("SELECT * WHERE {?s ?p ?o}");
results.Should().NotBeNull().And.HaveCount(1);
_fixture.Server1.FindLogEntries(new RequestMessagePathMatcher(MatchBehaviour.AcceptOnMatch, "/query"))
.Should().HaveCount(1).And.Contain(x =>
x.RequestMessage.Method.Equals("get", StringComparison.InvariantCultureIgnoreCase));
}
private bool SetupSparqlEndpointData()
{
try
{
FederatedSparqlRemoteEndpoint federatedSparqlRemoteEndpoint =
new FederatedSparqlRemoteEndpoint(_testSparqlEndpoints);
var response =
federatedSparqlRemoteEndpoint.QueryWithResultSet("select ?s where {?s ?p ?o} limit 1");
if (response.Count() == 3)
{
return(true);
}
return(false);
}
catch (Exception)
{
return(false);
}
}