public void SparqlRemoteEndpointMemoryLeak2()
{
//Do a GC before attempting the test
GC.GetTotalMemory(true);
//First off make sure to load some data into the some
SparqlRemoteUpdateEndpoint updateEndpoint = RemoteEndpoints.GetUpdateEndpoint();
updateEndpoint.Update("DROP ALL");
int totalRuns = 10000;
int subjects = 1000;
int predicates = 10;
//Loop over making queries to try and reproduce the memory leak
for (int i = 1; i <= totalRuns; i++)
{
//Add new data each time around
updateEndpoint.Update("INSERT DATA { <http://subject/" + (i % subjects) + "> <http://predicate/" + (i % predicates) + "> <http://object/" + i + "> . }");
SparqlRemoteEndpoint endpoint = RemoteEndpoints.GetQueryEndpoint();
SparqlParameterizedString queryString = new SparqlParameterizedString();
queryString.CommandText = "SELECT * WHERE { <http://subject/" + (i % 1000) + "> ?p ?o }";
ResultCountHandler handler = new ResultCountHandler();
endpoint.QueryWithResultSet(handler, queryString.ToString());
Assert.True(handler.Count >= 1 && handler.Count <= subjects, "Result Count " + handler.Count + " is not in expected range 1 <= x < " + (i % 1000));
if (i % 500 == 0)
{
Debug.WriteLine("Memory Usage after " + i + " Iterations: " + Process.GetCurrentProcess().PrivateMemorySize64);
}
}
Debug.WriteLine("Memory Usage after " + totalRuns + " Iterations: " + Process.GetCurrentProcess().PrivateMemorySize64);
}
public void SparqlRemoteEndpointResultCountHandler()
{
SparqlRemoteEndpoint endpoint = RemoteEndpoints.GetQueryEndpoint();
ResultCountHandler handler = new ResultCountHandler();
endpoint.QueryWithResultSet(handler, "SELECT * WHERE { { ?s ?p ?o } UNION { GRAPH ?g { ?s ?p ?o } } }");
Console.WriteLine("Result Count: " + handler.Count);
Assert.NotEqual(0, handler.Count);
}
private void TestResultCountHandler(ISparqlQueryProcessor processor, String query)
{
SparqlQuery q = this._parser.ParseFromString(query);
SparqlResultSet expected = processor.ProcessQuery(q) as SparqlResultSet;
Assert.NotNull(expected);
ResultCountHandler handler = new ResultCountHandler();
processor.ProcessQuery(null, handler, q);
Assert.Equal(expected.Count, handler.Count);
}
private void TestResultCountHandler(ISparqlQueryProcessor processor, String query)
{
SparqlQuery q = this._parser.ParseFromString(query);
SparqlResultSet expected = processor.ProcessQuery(q) as SparqlResultSet;
if (expected == null)
{
Assert.Fail("Query failed to return a Result Set as expected");
}
ResultCountHandler handler = new ResultCountHandler();
processor.ProcessQuery(null, handler, q);
Assert.AreEqual(expected.Count, handler.Count, "Counts should have been equal");
}
