public void SparqlRemoteEndpointMemoryLeak1()
{
/*
* Dim endpoint = New SparqlRemoteEndpoint(New Uri("http://localhost:8080/sesame/repositories/my_repo"))
* Dim queryString As SparqlParameterizedString = New SparqlParameterizedString()
* queryString.Namespaces.AddNamespace("annot", New Uri(oAppSettingsReader.GetValue("BaseUriSite", GetType(System.String)) & "/annotations.owl#"))
* queryString.CommandText = "SELECT DISTINCT ?text WHERE {?annotation annot:onContent <" & _uriDocument & "> ; annot:onContentPart """ & ContentPart & """ ; annot:text ?text ; annot:isValid ""false""^^xsd:boolean . }"
* Dim results As SparqlResultSet = endpoint.QueryWithResultSet(queryString.ToString)
* For Each result As SparqlResult In results
* Console.WriteLine(DirectCast(result.Value("text"), LiteralNode).Value)
* Next
* results.Dispose()
*/
//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; INSERT DATA { <http://subject> <http://predicate> <http://object> . }");
int totalRuns = 10000;
//Loop over making queries to try and reproduce the memory leak
for (int i = 1; i <= totalRuns; i++)
{
SparqlRemoteEndpoint endpoint = RemoteEndpoints.GetQueryEndpoint();
SparqlParameterizedString queryString = new SparqlParameterizedString();
queryString.CommandText = "SELECT * WHERE { ?s ?p ?o }";
SparqlResultSet results = endpoint.QueryWithResultSet(queryString.ToString());
Assert.Equal(1, results.Count);
foreach (SparqlResult result in results)
{
//We're just iterating to make sure we touch the whole of the results
}
results.Dispose();
if (i % 500 == 0)
{
Debug.WriteLine("Memory Usage after " + i + " Iterations: " + Process.GetCurrentProcess().PrivateMemorySize64);
}
}
Debug.WriteLine("Memory Usage after " + totalRuns + " Iterations: " + Process.GetCurrentProcess().PrivateMemorySize64);
}