public void EvaluateUnboundTerms()
{
const string applicationCsdl =
@"<Schema Namespace=""bar"" xmlns=""http://docs.oasis-open.org/odata/ns/edm"">
<Annotations Target=""bar.Person"">
<Annotation Term=""bar.RandomTerm"" Path=""Extra"" />
</Annotations>
<EntityType Name=""Person"">
<Key>
<PropertyRef Name=""Name"" />
</Key>
<Property Name=""Name"" Type=""String"" Nullable=""false"" />
<Property Name=""Decoration"" Type=""bar.Decoration"">
<Annotation Term=""bar.DecorationTerm"" Qualifier=""Goodness"" String=""Excellent"" />
</Property>
</EntityType>
<ComplexType Name=""Decoration"">
<Property Name=""One"" Type=""Int32"" />
<Property Name=""Two"" Type=""Int32"" />
</ComplexType>
</Schema>";
IEdmModel applicationModel = this.Parse(applicationCsdl);
IEdmEntityType person = (IEdmEntityType)applicationModel.FindType("bar.Person");
IEdmProperty personDecoration = person.FindProperty("Decoration");
EdmToClrEvaluator evaluator = new EdmToClrEvaluator(null);
List <IEdmPropertyValue> decorationPropertyValues = new List <IEdmPropertyValue>();
decorationPropertyValues.Add(new EdmPropertyValue("One", new EdmIntegerConstant(1)));
decorationPropertyValues.Add(new EdmPropertyValue("Two", new EdmIntegerConstant(2)));
List <IEdmPropertyValue> propertyValues = new List <IEdmPropertyValue>();
propertyValues.Add(new EdmPropertyValue("Name", new EdmStringConstant("Goober")));
propertyValues.Add(new EdmPropertyValue("Decoration", new EdmStructuredValue(null, decorationPropertyValues)));
propertyValues.Add(new EdmPropertyValue("Extra", new EdmStringConstant("Extra value!")));
IEdmStructuredValue context = new EdmStructuredValue(new EdmEntityTypeReference(person, false), propertyValues);
string random = applicationModel.GetTermValue <string>(context, "bar.RandomTerm", evaluator);
Assert.AreEqual("Extra value!", random, "Annotation evaluated value.");
IEdmValue randomValue = applicationModel.GetTermValue(context, "bar.RandomTerm", evaluator);
Assert.AreEqual("Extra value!", ((IEdmStringValue)randomValue).Value, "Annotation evaluated value.");
string goodness = applicationModel.GetTermValue <string>(personDecoration, "bar.DecorationTerm", "Goodness", evaluator);
Assert.AreEqual("Excellent", goodness, "Annotation evaluated value.");
IEdmValue goodnessValue = applicationModel.GetTermValue(personDecoration, "bar.DecorationTerm", "Goodness", evaluator);
Assert.AreEqual("Excellent", ((IEdmStringValue)goodnessValue).Value, "Annotation evaluated value.");
IEdmVocabularyAnnotation randomTermAnnotation = applicationModel.FindVocabularyAnnotations <IEdmVocabularyAnnotation>(person, "bar.RandomTerm").Single();
random = evaluator.EvaluateToClrValue <string>(randomTermAnnotation.Value, context);
Assert.AreEqual("Extra value!", random, "Annotation evaluated value.");
}
private T ConvertToClrObject <T>(IEdmValueAnnotation valueAnnotation)
{
var edmClrEvaluator = new EdmToClrEvaluator(this.operationDefinitions);
var edmClrConverter = new EdmToClrConverter();
var edmValue = edmClrEvaluator.Evaluate(valueAnnotation.Value);
var object1 = edmClrEvaluator.EvaluateToClrValue <T>(valueAnnotation.Value);
var object2 = (T)edmClrConverter.AsClrValue(edmValue, typeof(T));
var object3 = edmClrEvaluator.EdmToClrConverter.AsClrValue <T>(edmValue);
Assert.IsTrue(CompareObjects(object1, object2), "The results of EvaluateToClrValue and AsClrValue do not match.");
Assert.IsTrue(CompareObjects(object2, object3), "The result of the generic version of AsClrValue does not match that of the non-generic version.");
return(object1);
}
/// <summary>
/// Evaluate IEdmVocabularyAnnotation to an CLR object
/// </summary>
/// <typeparam name="TResult">The CLR type of the annotation to be returned.</typeparam>
/// <param name="context">The data service context.</param>
/// <param name="edmValueAnnotation">IEdmVocabularyAnnotation to be evaluated.</param>
/// <param name="clientEdmValue">Value to use as context in evaluating the expression.</param>
/// <param name="annotationValue">Value of the term evaluated.</param>
/// <returns>True if the annotation value can be evaluated, else false.</returns>
private static bool TryEvaluateMetadataAnnotation <TResult>(DataServiceContext context, IEdmVocabularyAnnotation edmValueAnnotation, ClientEdmStructuredValue clientEdmValue, out TResult annotationValue)
{
if (edmValueAnnotation == null)
{
annotationValue = default(TResult);
return(false);
}
EdmToClrEvaluator evaluator = CreateEdmToClrEvaluator(context);
try
{
annotationValue = evaluator.EvaluateToClrValue <TResult>(edmValueAnnotation.Value, clientEdmValue);
}
catch (InvalidOperationException)
{
// When expression contains Path. if the clientEdmValue is null, or the related property is not valid property of the clientEdmValue.
// TheEvaluateToClrValue might throw InvalidOperationException;
annotationValue = default(TResult);
return(false);
}
return(true);
}
public void EvaluateUnboundTerms()
{
const string applicationCsdl =
@"<Schema Namespace=""bar"" xmlns=""http://docs.oasis-open.org/odata/ns/edm"">
<Annotations Target=""bar.Person"">
<Annotation Term=""bar.RandomTerm"" Path=""Extra"" />
</Annotations>
<EntityType Name=""Person"">
<Key>
<PropertyRef Name=""Name"" />
</Key>
<Property Name=""Name"" Type=""String"" Nullable=""false"" />
<Property Name=""Decoration"" Type=""bar.Decoration"">
<Annotation Term=""bar.DecorationTerm"" Qualifier=""Goodness"" String=""Excellent"" />
</Property>
</EntityType>
<ComplexType Name=""Decoration"">
<Property Name=""One"" Type=""Int32"" />
<Property Name=""Two"" Type=""Int32"" />
</ComplexType>
</Schema>";
IEdmModel applicationModel = this.Parse(applicationCsdl);
IEdmEntityType person = (IEdmEntityType)applicationModel.FindType("bar.Person");
IEdmProperty personDecoration = person.FindProperty("Decoration");
EdmToClrEvaluator evaluator = new EdmToClrEvaluator(null);
List<IEdmPropertyValue> decorationPropertyValues = new List<IEdmPropertyValue>();
decorationPropertyValues.Add(new EdmPropertyValue("One", new EdmIntegerConstant(1)));
decorationPropertyValues.Add(new EdmPropertyValue("Two", new EdmIntegerConstant(2)));
List<IEdmPropertyValue> propertyValues = new List<IEdmPropertyValue>();
propertyValues.Add(new EdmPropertyValue("Name", new EdmStringConstant("Goober")));
propertyValues.Add(new EdmPropertyValue("Decoration", new EdmStructuredValue(null, decorationPropertyValues)));
propertyValues.Add(new EdmPropertyValue("Extra", new EdmStringConstant("Extra value!")));
IEdmStructuredValue context = new EdmStructuredValue(new EdmEntityTypeReference(person, false), propertyValues);
string random = applicationModel.GetTermValue<string>(context, "bar.RandomTerm", evaluator);
Assert.AreEqual("Extra value!", random, "Annotation evaluated value.");
IEdmValue randomValue = applicationModel.GetTermValue(context, "bar.RandomTerm", evaluator);
Assert.AreEqual("Extra value!", ((IEdmStringValue)randomValue).Value, "Annotation evaluated value.");
string goodness = applicationModel.GetTermValue<string>(personDecoration, "bar.DecorationTerm", "Goodness", evaluator);
Assert.AreEqual("Excellent", goodness, "Annotation evaluated value.");
IEdmValue goodnessValue = applicationModel.GetTermValue(personDecoration, "bar.DecorationTerm", "Goodness", evaluator);
Assert.AreEqual("Excellent", ((IEdmStringValue)goodnessValue).Value, "Annotation evaluated value.");
IEdmValueAnnotation randomTermAnnotation = applicationModel.FindVocabularyAnnotations<IEdmValueAnnotation>(person, "bar.RandomTerm").Single();
random = evaluator.EvaluateToClrValue<string>(randomTermAnnotation.Value, context);
Assert.AreEqual("Extra value!", random, "Annotation evaluated value.");
}
