public void TestRetrieveSingleFilm()
{
const string odataQuery = "http://example.org/odata/Films('Un_Chien_Andalou')";
var parsedQuery = QueryDescriptorQueryNode.ParseUri(
new Uri(odataQuery), new Uri(_odataBase), _dbpediaModel);
var sparqlGenerator = new SparqlGenerator(_dbpediaMap);
sparqlGenerator.ProcessQuery(parsedQuery);
Console.WriteLine(sparqlGenerator.SparqlQueryModel.GetSparqlRepresentation());
var mockRequest = new Mock<IODataRequestMessage>();
mockRequest.Setup(m => m.Url).Returns(new Uri(odataQuery));
var mockMessage = new Mock<IODataResponseMessage>();
var outputStream = new MemoryStream();
mockMessage.Setup(m => m.GetStream()).Returns(outputStream);
var feedGenerator = new ODataFeedGenerator(mockRequest.Object, mockMessage.Object, _dbpediaMap, _odataBase, new ODataMessageWriterSettings{Indent = true});
sparqlGenerator.SparqlQueryModel.Execute(_sparqlEndpoint, feedGenerator);
outputStream.Seek(0, SeekOrigin.Begin);
var validator = new XPathValidator(outputStream);
validator.AddNamespace("atom", "http://www.w3.org/2005/Atom");
validator.AddNamespace("d", "http://schemas.microsoft.com/ado/2007/08/dataservices");
validator.AddNamespace("m", "http://schemas.microsoft.com/ado/2007/08/dataservices/metadata");
Console.WriteLine(validator.ToString());
validator.AssertRoot("atom:entry");
validator.AssertXPathValue("/atom:entry/atom:id", "http://example.org/odata/Films('Un_Chien_Andalou')");
validator.AssertXPathValue("/atom:entry/atom:title", "");
validator.AssertXPathValue("/atom:entry/atom:content/m:properties/d:Name", "Un Chien Andalou");
validator.AssertXPathValue("/atom:entry/atom:content/m:properties/d:Runtime", "960.0");
validator.AssertXPathValue("/atom:entry/atom:link[@rel='http://schemas.microsoft.com/ado/2007/08/dataservices/related/Director']/@href", "http://example.org/odata/Films('Un_Chien_Andalou')/Director");
}
public void TestRetrieveSingleFilm()
{
const string odataQuery = "http://example.org/odata/Films('Un_Chien_Andalou')";
var parsedQuery = QueryDescriptorQueryNode.ParseUri(
new Uri(odataQuery), new Uri(_odataBase), _dbpediaModel);
var sparqlGenerator = new SparqlGenerator(_dbpediaMap);
sparqlGenerator.ProcessQuery(parsedQuery);
Console.WriteLine(sparqlGenerator.SparqlQueryModel.GetSparqlRepresentation());
var mockRequest = new Mock <IODataRequestMessage>();
mockRequest.Setup(m => m.Url).Returns(new Uri(odataQuery));
var mockMessage = new Mock <IODataResponseMessage>();
var outputStream = new MemoryStream();
mockMessage.Setup(m => m.GetStream()).Returns(outputStream);
var feedGenerator = new ODataFeedGenerator(mockRequest.Object, mockMessage.Object, _dbpediaMap, _odataBase, new ODataMessageWriterSettings {
Indent = true
});
sparqlGenerator.SparqlQueryModel.Execute(_sparqlEndpoint, feedGenerator);
outputStream.Seek(0, SeekOrigin.Begin);
var validator = new XPathValidator(outputStream);
validator.AddNamespace("atom", "http://www.w3.org/2005/Atom");
validator.AddNamespace("d", "http://schemas.microsoft.com/ado/2007/08/dataservices");
validator.AddNamespace("m", "http://schemas.microsoft.com/ado/2007/08/dataservices/metadata");
Console.WriteLine(validator.ToString());
validator.AssertRoot("atom:entry");
validator.AssertXPathValue("/atom:entry/atom:id", "http://example.org/odata/Films('Un_Chien_Andalou')");
validator.AssertXPathValue("/atom:entry/atom:title", "");
validator.AssertXPathValue("/atom:entry/atom:content/m:properties/d:Name", "Un Chien Andalou");
validator.AssertXPathValue("/atom:entry/atom:content/m:properties/d:Runtime", "960.0");
validator.AssertXPathValue("/atom:entry/atom:link[@rel='http://schemas.microsoft.com/ado/2007/08/dataservices/related/Director']/@href", "http://example.org/odata/Films('Un_Chien_Andalou')/Director");
}
private XPathValidator GenerateAndExecuteSparql(string odataQuery, SparqlMap sparqlMap, ODataVersion odataVersion = ODataVersion.V3)
{
var parsedQuery = QueryDescriptorQueryNode.ParseUri(
new Uri(odataQuery),
new Uri(_odataBase),
_dbpediaModel);
var sparqlGenerator = new SparqlGenerator(sparqlMap, "en");
sparqlGenerator.ProcessQuery(parsedQuery);
var mockRequest = new Mock <IODataRequestMessage>();
mockRequest.Setup(m => m.Url).Returns(new Uri(odataQuery));
var mockMessage = new Mock <IODataResponseMessage>();
var outputStream = new MemoryStream();
mockMessage.Setup(m => m.GetStream()).Returns(outputStream);
var feedGenerator = new ODataFeedGenerator(
mockRequest.Object,
mockMessage.Object, sparqlMap, _odataBase,
new ODataMessageWriterSettings {
Indent = true, Version = odataVersion
});
Console.WriteLine(sparqlGenerator.SparqlQueryModel.GetSparqlRepresentation());
sparqlGenerator.SparqlQueryModel.Execute(_sparqlEndpoint, feedGenerator);
outputStream.Seek(0, SeekOrigin.Begin);
var validator = new XPathValidator(outputStream);
validator.AddNamespace("atom", "http://www.w3.org/2005/Atom");
validator.AddNamespace("d", "http://schemas.microsoft.com/ado/2007/08/dataservices");
validator.AddNamespace("m", "http://schemas.microsoft.com/ado/2007/08/dataservices/metadata");
return(validator);
}
// Not implemented yet because the OData parser library does not support isof
//[TestMethod]
//public void TestFnIsOf()
//{
// var sparql = ProcessQuery("http://example.org/odata/Works?$filter=isof('DBPedia.Film')");
// Assert.IsNotNull(sparql);
// Console.WriteLine(sparql);
// Assert.AreEqual(1, sparql.RootGraphPattern.FilterExpressions.Count);
// Assert.AreEqual("EXISTS {?v1 a <http://dbpedia.org/ontology/Work>}", sparql.RootGraphPattern.FilterExpressions[0]);
//}
// Not implemented yet because the OData parser library does not support $select or $expand
//[TestMethod]
//public void TestSelectSimpleProperties()
//{
// var sparql = ProcessQuery("http://example.org/odata/Films?$select=Name,Runtime,ReleaseDate");
// Assert.IsNotNull(sparql);
// Console.WriteLine(sparql.GetSparqlRepresentation());
// Assert.IsFalse(sparql.IsDescribe);
//}
private SparqlModel ProcessQuery(string odataQuery)
{
var generator = new SparqlGenerator(_dbpediaMap);
var queryDescriptor = QueryDescriptorQueryNode.ParseUri(
new Uri(odataQuery),
new Uri("http://example.org/odata/"), _dbpediaModel);
generator.ProcessQuery(queryDescriptor);
return(generator.SparqlQueryModel);
}
public void TestSkip()
{
var generator = new SparqlGenerator(_dbpediaMap);
var queryDescriptor = QueryDescriptorQueryNode.ParseUri(
new Uri("http://example.org/odata/Films?$skip=5"),
new Uri("http://example.org/odata/"), _dbpediaModel);
generator.ProcessQuery(queryDescriptor);
var sparql = generator.SparqlQueryModel;
Assert.IsNotNull(sparql);
Assert.IsTrue(sparql.IsDescribe);
Assert.AreEqual(5, sparql.Offset);
}
public void TestInstanceAccess()
{
var dbpediaGenerator = new SparqlGenerator(_dbpediaMap);
var queryDescriptor = QueryDescriptorQueryNode.ParseUri(
new Uri("http://example.org/odata/Films('Un_Chien_Andalou')"),
new Uri("http://example.org/odata/"), _dbpediaModel);
dbpediaGenerator.ProcessQuery(queryDescriptor);
Assert.IsNotNull(dbpediaGenerator.SparqlQueryModel);
Assert.IsNotNull(dbpediaGenerator.SparqlQueryModel.DescribeResource);
Assert.AreEqual("http://dbpedia.org/resource/Un_Chien_Andalou", dbpediaGenerator.SparqlQueryModel.DescribeResource);
Assert.AreEqual("DBPedia.Film", dbpediaGenerator.SparqlQueryModel.GetEntityType("http://dbpedia.org/resource/Un_Chien_Andalou"));
}
public void TestInstanceAccess()
{
var dbpediaGenerator = new SparqlGenerator(_dbpediaMap);
var queryDescriptor = QueryDescriptorQueryNode.ParseUri(
new Uri("http://example.org/odata/Films('Un_Chien_Andalou')"),
new Uri("http://example.org/odata/"), _dbpediaModel);
dbpediaGenerator.ProcessQuery(queryDescriptor);
Assert.IsNotNull(dbpediaGenerator.SparqlQueryModel);
Assert.IsNotNull(dbpediaGenerator.SparqlQueryModel.DescribeResource);
Assert.AreEqual("http://dbpedia.org/resource/Un_Chien_Andalou", dbpediaGenerator.SparqlQueryModel.DescribeResource);
Assert.AreEqual("DBPedia.Film", dbpediaGenerator.SparqlQueryModel.GetEntityType("http://dbpedia.org/resource/Un_Chien_Andalou"));
}
public void TestSkip()
{
var generator = new SparqlGenerator(_dbpediaMap);
var queryDescriptor = QueryDescriptorQueryNode.ParseUri(
new Uri("http://example.org/odata/Films?$skip=5"),
new Uri("http://example.org/odata/"), _dbpediaModel);
generator.ProcessQuery(queryDescriptor);
var sparql = generator.SparqlQueryModel;
Assert.IsNotNull(sparql);
Assert.IsTrue(sparql.IsDescribe);
Assert.AreEqual(5, sparql.Offset);
}
public void TestSkipAndTop()
{
var generator = new SparqlGenerator(_dbpediaMap);
var queryDescriptor = QueryDescriptorQueryNode.ParseUri(
new Uri("http://example.org/odata/Films?$skip=50&$top=10"),
new Uri("http://example.org/odata/"),
_dbpediaModel);
generator.ProcessQuery(queryDescriptor);
var sparql = generator.SparqlQueryModel;
Assert.IsNotNull(sparql);
Assert.IsTrue(sparql.IsDescribe);
Assert.AreEqual(1, sparql.RootGraphPattern.TriplePatterns.Count);
Assert.AreEqual(10, sparql.Limit);
Assert.AreEqual(50, sparql.Offset);
}
public void TestOrderByProperty()
{
var generator = new SparqlGenerator(_dbpediaMap);
var queryDescriptor = QueryDescriptorQueryNode.ParseUri(
new Uri("http://example.org/odata/Places?$orderby=PopulationTotal&$top=20"),
new Uri("http://example.org/odata/"), _dbpediaModel);
generator.ProcessQuery(queryDescriptor);
var sparql = generator.SparqlQueryModel;
Assert.IsNotNull(sparql);
Assert.IsTrue(sparql.IsDescribe);
Assert.AreEqual(20, sparql.Limit);
Assert.IsNotNull(sparql.Ordering);
Assert.IsTrue(sparql.Ordering.IsSimple);
Assert.AreEqual("v2", sparql.Ordering.Variable);
Assert.IsNull(sparql.Ordering.ThenBy);
}
public void TestEntitySetAccess()
{
var dbpediaGenerator= new SparqlGenerator(_dbpediaMap);
var queryDescriptor = QueryDescriptorQueryNode.ParseUri(
new Uri("http://example.org/odata/Films"),
new Uri("http://example.org/odata/"), _dbpediaModel);
dbpediaGenerator.ProcessQuery(queryDescriptor);
Assert.IsNotNull(dbpediaGenerator.SparqlQueryModel);
Assert.IsNotNull(dbpediaGenerator.SparqlQueryModel.RootGraphPattern);
Assert.AreEqual(1, dbpediaGenerator.SparqlQueryModel.RootGraphPattern.TriplePatterns.Count);
var tp = dbpediaGenerator.SparqlQueryModel.RootGraphPattern.TriplePatterns[0];
Assert.AreEqual("?v1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Film>",
tp.GetSparqlRepresentation());
Assert.IsNotNull(dbpediaGenerator.SparqlQueryModel.SelectVariables);
Assert.AreEqual(1, dbpediaGenerator.SparqlQueryModel.SelectVariables.Count);
Assert.IsTrue(dbpediaGenerator.SparqlQueryModel.SelectVariables.Contains("v1"));
Assert.IsTrue(dbpediaGenerator.SparqlQueryModel.IsDescribe);
Assert.AreEqual("DBPedia.Film", dbpediaGenerator.SparqlQueryModel.GetEntityType("v1"));
}
public void TestEntitySetAccess()
{
var dbpediaGenerator = new SparqlGenerator(_dbpediaMap);
var queryDescriptor = QueryDescriptorQueryNode.ParseUri(
new Uri("http://example.org/odata/Films"),
new Uri("http://example.org/odata/"), _dbpediaModel);
dbpediaGenerator.ProcessQuery(queryDescriptor);
Assert.IsNotNull(dbpediaGenerator.SparqlQueryModel);
Assert.IsNotNull(dbpediaGenerator.SparqlQueryModel.RootGraphPattern);
Assert.AreEqual(1, dbpediaGenerator.SparqlQueryModel.RootGraphPattern.TriplePatterns.Count);
var tp = dbpediaGenerator.SparqlQueryModel.RootGraphPattern.TriplePatterns[0];
Assert.AreEqual("?v1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Film>",
tp.GetSparqlRepresentation());
Assert.IsNotNull(dbpediaGenerator.SparqlQueryModel.SelectVariables);
Assert.AreEqual(1, dbpediaGenerator.SparqlQueryModel.SelectVariables.Count);
Assert.IsTrue(dbpediaGenerator.SparqlQueryModel.SelectVariables.Contains("v1"));
Assert.IsTrue(dbpediaGenerator.SparqlQueryModel.IsDescribe);
Assert.AreEqual("DBPedia.Film", dbpediaGenerator.SparqlQueryModel.GetEntityType("v1"));
}
public void TestSkipAndTop()
{
var generator = new SparqlGenerator(_dbpediaMap);
var queryDescriptor = QueryDescriptorQueryNode.ParseUri(
new Uri("http://example.org/odata/Films?$skip=50&$top=10"),
new Uri("http://example.org/odata/"),
_dbpediaModel);
generator.ProcessQuery(queryDescriptor);
var sparql = generator.SparqlQueryModel;
Assert.IsNotNull(sparql);
Assert.IsTrue(sparql.IsDescribe);
Assert.AreEqual(1, sparql.RootGraphPattern.TriplePatterns.Count);
Assert.AreEqual(10, sparql.Limit);
Assert.AreEqual(50, sparql.Offset);
}
// Not implemented yet because the OData parser library does not support isof
//[TestMethod]
//public void TestFnIsOf()
//{
// var sparql = ProcessQuery("http://example.org/odata/Works?$filter=isof('DBPedia.Film')");
// Assert.IsNotNull(sparql);
// Console.WriteLine(sparql);
// Assert.AreEqual(1, sparql.RootGraphPattern.FilterExpressions.Count);
// Assert.AreEqual("EXISTS {?v1 a <http://dbpedia.org/ontology/Work>}", sparql.RootGraphPattern.FilterExpressions[0]);
//}
// Not implemented yet because the OData parser library does not support $select or $expand
//[TestMethod]
//public void TestSelectSimpleProperties()
//{
// var sparql = ProcessQuery("http://example.org/odata/Films?$select=Name,Runtime,ReleaseDate");
// Assert.IsNotNull(sparql);
// Console.WriteLine(sparql.GetSparqlRepresentation());
// Assert.IsFalse(sparql.IsDescribe);
//}
private SparqlModel ProcessQuery(string odataQuery)
{
var generator = new SparqlGenerator(_dbpediaMap);
var queryDescriptor = QueryDescriptorQueryNode.ParseUri(
new Uri(odataQuery),
new Uri("http://example.org/odata/"), _dbpediaModel);
generator.ProcessQuery(queryDescriptor);
return generator.SparqlQueryModel;
}
public void TestOrderByProperty()
{
var generator = new SparqlGenerator(_dbpediaMap);
var queryDescriptor = QueryDescriptorQueryNode.ParseUri(
new Uri("http://example.org/odata/Places?$orderby=PopulationTotal&$top=20"),
new Uri("http://example.org/odata/"), _dbpediaModel);
generator.ProcessQuery(queryDescriptor);
var sparql = generator.SparqlQueryModel;
Assert.IsNotNull(sparql);
Assert.IsTrue(sparql.IsDescribe);
Assert.AreEqual(20, sparql.Limit);
Assert.IsNotNull(sparql.Ordering);
Assert.IsTrue(sparql.Ordering.IsSimple);
Assert.AreEqual("v2", sparql.Ordering.Variable);
Assert.IsNull(sparql.Ordering.ThenBy);
}
private XPathValidator GenerateAndExecuteSparql(string odataQuery, SparqlMap sparqlMap, ODataVersion odataVersion=ODataVersion.V3)
{
var parsedQuery = QueryDescriptorQueryNode.ParseUri(
new Uri(odataQuery),
new Uri(_odataBase),
_dbpediaModel);
var sparqlGenerator = new SparqlGenerator(sparqlMap, "en");
sparqlGenerator.ProcessQuery(parsedQuery);
var mockRequest = new Mock<IODataRequestMessage>();
mockRequest.Setup(m => m.Url).Returns(new Uri(odataQuery));
var mockMessage = new Mock<IODataResponseMessage>();
var outputStream = new MemoryStream();
mockMessage.Setup(m => m.GetStream()).Returns(outputStream);
var feedGenerator = new ODataFeedGenerator(
mockRequest.Object,
mockMessage.Object, sparqlMap, _odataBase,
new ODataMessageWriterSettings{Indent = true, Version = odataVersion});
Console.WriteLine(sparqlGenerator.SparqlQueryModel.GetSparqlRepresentation());
sparqlGenerator.SparqlQueryModel.Execute(_sparqlEndpoint, feedGenerator);
outputStream.Seek(0, SeekOrigin.Begin);
var validator = new XPathValidator(outputStream);
validator.AddNamespace("atom", "http://www.w3.org/2005/Atom");
validator.AddNamespace("d", "http://schemas.microsoft.com/ado/2007/08/dataservices");
validator.AddNamespace("m", "http://schemas.microsoft.com/ado/2007/08/dataservices/metadata");
return validator;
}
