private static void VerifyEnumVsStringFilterExpressionReverse(FilterClause filter)
{
var enumtypeRef = new EdmEnumTypeReference(UriEdmHelpers.FindEnumTypeFromModel(HardCodedTestModel.TestModel, "Fully.Qualified.Namespace.ColorPattern"), true);
var bin = filter.Expression.ShouldBeBinaryOperatorNode(BinaryOperatorKind.Equal).And;
bin.Right.ShouldBeSingleValuePropertyAccessQueryNode(HardCodedTestModel.GetPet2PetColorPatternProperty());
bin.Left.ShouldBeEnumNode(new ODataEnumValue("2", enumtypeRef.ODataFullName()));
}
internal static bool TryBindIdentifier(string identifier, IEdmEnumTypeReference typeReference, IEdmModel modelWhenNoTypeReference, out QueryNode boundEnum)
{
boundEnum = null;
string text = identifier;
// parse the string, e.g., NS.Color'Green'
// get type information, and also convert Green into an ODataEnumValue
// find the first ', before that, it is namespace.type
int indexOfSingleQuote = text.IndexOf('\'');
if (indexOfSingleQuote < 0)
{
return(false);
}
string namespaceAndType = text.Substring(0, indexOfSingleQuote);
Debug.Assert((typeReference == null) || (modelWhenNoTypeReference == null), "((typeReference == null) || (modelWhenNoTypeReference == null)");
// validate typeReference but allow type name not found in model for delayed throwing.
if ((typeReference != null) && !string.Equals(namespaceAndType, typeReference.FullName()))
{
return(false);
}
// get the type
IEdmEnumType enumType = typeReference != null
?
(IEdmEnumType)typeReference.Definition
:
UriEdmHelpers.FindEnumTypeFromModel(modelWhenNoTypeReference, namespaceAndType);
if (enumType == null)
{
return(false);
}
// now, find out the value
UriParserHelper.TryRemovePrefix(namespaceAndType, ref text);
UriParserHelper.TryRemoveQuotes(ref text);
// parse string or int value to edm enum value
string enumValueString = text;
ODataEnumValue enumValue;
if (!TryParseEnum(enumType, enumValueString, out enumValue))
{
return(false);
}
// create an enum node, enclosing an odata enum value
IEdmEnumTypeReference enumTypeReference = typeReference ?? new EdmEnumTypeReference(enumType, false);
boundEnum = new ConstantNode(enumValue, identifier, enumTypeReference);
return(true);
}
internal static bool TryBindIdentifier(string identifier, IEdmModel model, out QueryNode boundEnum)
{
boundEnum = null;
string text = identifier;
// parse the string, e.g., NS.Color'Green'
// get type information, and also convert Green into an ODataEnumValue
// find the first ', before that, it is namespace.type
int indexOfSingleQuote = text.IndexOf('\'');
if (indexOfSingleQuote < 0)
{
return(false);
}
string namespaceAndType = text.Substring(0, indexOfSingleQuote);
// find the type from edm model
IEdmEnumType enumType = UriEdmHelpers.FindEnumTypeFromModel(model, namespaceAndType);
if (enumType == null)
{
return(false);
}
// now, find out the value
UriPrimitiveTypeParser.TryRemovePrefix(namespaceAndType, ref text);
UriPrimitiveTypeParser.TryRemoveQuotes(ref text);
// parse string or int value to edm enum value
string enumValueString = text;
ODataEnumValue enumValue;
enumType.TryParseEnum(enumValueString, out enumValue);
if (enumValue == null)
{
return(false);
}
// create an enum node, enclosing an odata enum value
EdmEnumTypeReference enumTypeReference = new EdmEnumTypeReference(enumType, false);
boundEnum = new ConstantNode(enumValue, identifier, enumTypeReference);
return(true);
}
public void TestEnumAsStringHas()
{
Uri unqualifiedEnumUri = new Uri("http://host/Pet2Set?$filter=PetColorPattern has 'Blue'");
var uriParser = new ODataUriParser(HardCodedTestModel.TestModel, ServiceRoot, unqualifiedEnumUri)
{
Resolver = new StringAsEnumResolver()
};
var filter = uriParser.ParseFilter();
var enumtypeRef = new EdmEnumTypeReference(UriEdmHelpers.FindEnumTypeFromModel(HardCodedTestModel.TestModel, "Fully.Qualified.Namespace.ColorPattern"), true);
var bin = filter.Expression.ShouldBeBinaryOperatorNode(BinaryOperatorKind.Has);
bin.Left.ShouldBeSingleValuePropertyAccessQueryNode(HardCodedTestModel.GetPet2PetColorPatternProperty());
bin.Right.ShouldBeStringCompatibleEnumNode(enumtypeRef.EnumDefinition(), "2");
}