private void AddScalarMember(Type type, PropertyInfo clrProperty, StructuralType ospaceType, EdmProperty cspaceProperty, EdmType propertyType)
{
Debug.Assert(type != null, "type != null");
Debug.Assert(clrProperty != null, "clrProperty != null");
Debug.Assert(clrProperty.CanRead && clrProperty.CanWrite, "The clr property has to have a setter and a getter.");
Debug.Assert(ospaceType != null, "ospaceType != null");
Debug.Assert(cspaceProperty != null, "cspaceProperty != null");
Debug.Assert(propertyType != null, "propertyType != null");
Debug.Assert(Helper.IsScalarType(propertyType), "Property has to be primitive or enum.");
var cspaceType = cspaceProperty.DeclaringType;
bool isKeyMember = Helper.IsEntityType(cspaceType) && ((EntityType)cspaceType).KeyMemberNames.Contains(clrProperty.Name);
// the property is nullable only if it is not a key and can actually be set to null (i.e. is not a value type or is a nullable value type)
bool nullableFacetValue = !isKeyMember && (!clrProperty.PropertyType.IsValueType || Nullable.GetUnderlyingType(clrProperty.PropertyType) != null);
EdmProperty ospaceProperty =
new EdmProperty(
cspaceProperty.Name,
TypeUsage.Create(propertyType, new FacetValues {
Nullable = nullableFacetValue
}),
clrProperty,
type.TypeHandle);
if (isKeyMember)
{
((EntityType)ospaceType).AddKeyMember(ospaceProperty);
}
else
{
ospaceType.AddMember(ospaceProperty);
}
}
private void CreateAndAddNavigationProperty(StructuralType cspaceType, StructuralType ospaceType, NavigationProperty cspaceProperty, PropertyInfo clrProperty)
{
EdmType ospaceRelationship;
if (SessionData.CspaceToOspace.TryGetValue(cspaceProperty.RelationshipType, out ospaceRelationship))
{
Debug.Assert(ospaceRelationship is StructuralType, "Structural type expected.");
bool foundTarget = false;
EdmType targetType = null;
if (Helper.IsCollectionType(cspaceProperty.TypeUsage.EdmType))
{
EdmType findType;
foundTarget = SessionData.CspaceToOspace.TryGetValue((StructuralType)((CollectionType)cspaceProperty.TypeUsage.EdmType).TypeUsage.EdmType, out findType);
if (foundTarget)
{
Debug.Assert(findType is StructuralType, "Structural type expected.");
targetType = findType.GetCollectionType();
}
}
else
{
EdmType findType;
foundTarget = SessionData.CspaceToOspace.TryGetValue((StructuralType)cspaceProperty.TypeUsage.EdmType, out findType);
if (foundTarget)
{
Debug.Assert(findType is StructuralType, "Structural type expected.");
targetType = findType;
}
}
Debug.Assert(foundTarget, "Since the relationship will only be created if it can find the types for both ends, we will never fail to find one of the ends");
NavigationProperty navigationProperty = new NavigationProperty(cspaceProperty.Name, TypeUsage.Create(targetType), clrProperty);
navigationProperty.RelationshipType = (RelationshipType)ospaceRelationship;
// we can use First because o-space relationships are created directly from
// c-space relationship
navigationProperty.ToEndMember = (RelationshipEndMember)((RelationshipType)ospaceRelationship).Members.First(e => e.Name == cspaceProperty.ToEndMember.Name);
navigationProperty.FromEndMember = (RelationshipEndMember)((RelationshipType)ospaceRelationship).Members.First(e => e.Name == cspaceProperty.FromEndMember.Name);
ospaceType.AddMember(navigationProperty);
}
else
{
EntityTypeBase missingType = cspaceProperty.RelationshipType.RelationshipEndMembers.Select(e => ((RefType)e.TypeUsage.EdmType).ElementType).First(e => e != cspaceType);
string message =
SessionData.LoadMessageLogger.CreateErrorMessageWithTypeSpecificLoadLogs(
Strings.Validator_OSpace_Convention_RelationshipNotLoaded(cspaceProperty.RelationshipType.FullName, missingType.FullName),
missingType);
SessionData.EdmItemErrors.Add(new EdmItemError(message, ospaceType));
}
}
/// <summary>
/// Resolves enum type property.
/// </summary>
/// <param name="declaringType">The type to add the declared property to.</param>
/// <param name="clrProperty">Property to resolve.</param>
private void ResolveEnumTypeProperty(StructuralType declaringType, PropertyInfo clrProperty)
{
Debug.Assert(declaringType != null, "type != null");
Debug.Assert(clrProperty != null, "clrProperty != null");
Debug.Assert(
(Nullable.GetUnderlyingType(clrProperty.PropertyType) ?? clrProperty.PropertyType).IsEnum,
"This method should be called for enums only");
EdmType propertyType;
if (!TryGetLoadedType(clrProperty.PropertyType, out propertyType) || !Helper.IsEnumType(propertyType))
{
SessionData.EdmItemErrors.Add(
new EdmItemError(
System.Data.Entity.Strings.Validator_OSpace_ScalarPropertyNotPrimitive(
clrProperty.Name,
clrProperty.DeclaringType.FullName,
clrProperty.PropertyType.FullName), null));
}
else
{
var edmScalarPropertyAttribute = (EdmScalarPropertyAttribute)clrProperty.GetCustomAttributes(typeof(EdmScalarPropertyAttribute), false).Single();
EdmProperty enumProperty = new EdmProperty(
clrProperty.Name,
TypeUsage.Create(propertyType, new FacetValues()
{
Nullable = edmScalarPropertyAttribute.IsNullable
}),
clrProperty,
declaringType.ClrType.TypeHandle);
declaringType.AddMember(enumProperty);
if (declaringType.BuiltInTypeKind == BuiltInTypeKind.EntityType && edmScalarPropertyAttribute.EntityKeyProperty)
{
((EntityType)declaringType).AddKeyMember(enumProperty);
}
}
}
private void CreateAndAddComplexType(Type type, StructuralType ospaceType, EdmProperty cspaceProperty, PropertyInfo clrProperty)
{
EdmType propertyType;
if (SessionData.CspaceToOspace.TryGetValue((StructuralType)cspaceProperty.TypeUsage.EdmType, out propertyType))
{
Debug.Assert(propertyType is StructuralType, "Structural type expected.");
EdmProperty property = new EdmProperty(cspaceProperty.Name, TypeUsage.Create(propertyType, new FacetValues {
Nullable = false
}), clrProperty, type.TypeHandle);
ospaceType.AddMember(property);
}
else
{
string message =
SessionData.LoadMessageLogger.CreateErrorMessageWithTypeSpecificLoadLogs(
Strings.Validator_OSpace_Convention_MissingOSpaceType(cspaceProperty.TypeUsage.EdmType.FullName),
cspaceProperty.TypeUsage.EdmType);
SessionData.EdmItemErrors.Add(new EdmItemError(message, ospaceType));
}
}
private void ResolveComplexTypeProperty(StructuralType type, PropertyInfo clrProperty)
{
// Load the property type and create a new property object
EdmType propertyType;
// If the type could not be loaded it's definitely not a complex type, so that's an error
// If it could be loaded but is not a complex type that's an error as well
if (!TryGetLoadedType(clrProperty.PropertyType, out propertyType) || propertyType.BuiltInTypeKind != BuiltInTypeKind.ComplexType)
{
// This property does not need to be validated further, just add to the errors collection and continue with the next property
// This failure will cause an exception to be thrown later during validation of all of the types
SessionData.EdmItemErrors.Add(new EdmItemError(System.Data.Entity.Strings.Validator_OSpace_ComplexPropertyNotComplex(clrProperty.Name, clrProperty.DeclaringType.FullName, clrProperty.PropertyType.FullName), null));
}
else
{
EdmProperty newProperty = new EdmProperty(clrProperty.Name,
TypeUsage.Create(propertyType, new FacetValues {
Nullable = false
}),
clrProperty, type.ClrType.TypeHandle);
type.AddMember(newProperty);
}
}
internal void ResolveNavigationProperty(StructuralType declaringType, PropertyInfo propertyInfo)
{
Debug.Assert(propertyInfo.IsDefined(typeof(EdmRelationshipNavigationPropertyAttribute), false), "The property must have navigation property defined");
// EdmScalarPropertyAttribute, EdmComplexPropertyAttribute and EdmRelationshipNavigationPropertyAttribute
// are all EdmPropertyAttributes that we need to process. If the current property is not an EdmPropertyAttribute
// we will just ignore it and skip to the next property.
object[] relationshipPropertyAttributes = propertyInfo.GetCustomAttributes(typeof(EdmRelationshipNavigationPropertyAttribute), false);
Debug.Assert(relationshipPropertyAttributes.Length == 1, "There should be exactly one property for every navigation property");
// The only valid return types from navigation properties are:
// (1) EntityType
// (2) CollectionType containing valid EntityType
// If TryGetLoadedType returned false, it could mean that we couldn't validate any part of the type, or it could mean that it's a generic
// where the main generic type was validated, but the generic type parameter was not. We can't tell the difference, so just fail
// with the same error message in both cases. The user will have to figure out which part of the type is wrong.
// We can't just rely on checking for a generic because it can lead to a scenario where we report that the type parameter is invalid
// when really it's the main generic type. That is more confusing than reporting the full name and letting the user determine the problem.
EdmType propertyType;
if (!TryGetLoadedType(propertyInfo.PropertyType, out propertyType) || !(propertyType.BuiltInTypeKind == BuiltInTypeKind.EntityType || propertyType.BuiltInTypeKind == BuiltInTypeKind.CollectionType))
{
// Once an error is detected the property does not need to be validated further, just add to the errors
// collection and continue with the next property. The failure will cause an exception to be thrown later during validation of all of the types.
SessionData.EdmItemErrors.Add(new EdmItemError(System.Data.Entity.Strings.Validator_OSpace_InvalidNavPropReturnType(propertyInfo.Name, propertyInfo.DeclaringType.FullName, propertyInfo.PropertyType.FullName), null));
return;
}
// else we have a valid EntityType or CollectionType that contains EntityType. ResolveNonSchemaType enforces that a collection type
// must contain an EntityType, and if it doesn't, propertyType will be null here. If propertyType is EntityType or CollectionType we know it is valid
// Expecting EdmRelationshipNavigationPropertyAttribute to have AllowMultiple=False, so only look at first element in the attribute array
EdmRelationshipNavigationPropertyAttribute attribute = (EdmRelationshipNavigationPropertyAttribute)relationshipPropertyAttributes[0];
EdmMember member = null;
EdmType type;
if (SessionData.TypesInLoading.TryGetValue(attribute.RelationshipNamespaceName + "." + attribute.RelationshipName, out type) &&
Helper.IsAssociationType(type))
{
AssociationType relationshipType = (AssociationType)type;
if (relationshipType != null)
{
// The return value of this property has been verified, so create the property now
NavigationProperty navigationProperty = new NavigationProperty(propertyInfo.Name, TypeUsage.Create(propertyType), propertyInfo);
navigationProperty.RelationshipType = relationshipType;
member = navigationProperty;
if (relationshipType.Members[0].Name == attribute.TargetRoleName)
{
navigationProperty.ToEndMember = (RelationshipEndMember)relationshipType.Members[0];
navigationProperty.FromEndMember = (RelationshipEndMember)relationshipType.Members[1];
}
else if (relationshipType.Members[1].Name == attribute.TargetRoleName)
{
navigationProperty.ToEndMember = (RelationshipEndMember)relationshipType.Members[1];
navigationProperty.FromEndMember = (RelationshipEndMember)relationshipType.Members[0];
}
else
{
SessionData.EdmItemErrors.Add(new EdmItemError(System.Data.Entity.Strings.TargetRoleNameInNavigationPropertyNotValid(
propertyInfo.Name, propertyInfo.DeclaringType.FullName, attribute.TargetRoleName, attribute.RelationshipName), navigationProperty));
member = null;
}
if (member != null &&
((RefType)navigationProperty.FromEndMember.TypeUsage.EdmType).ElementType.ClrType != declaringType.ClrType)
{
SessionData.EdmItemErrors.Add(new EdmItemError(System.Data.Entity.Strings.NavigationPropertyRelationshipEndTypeMismatch(
declaringType.FullName,
navigationProperty.Name,
relationshipType.FullName,
navigationProperty.FromEndMember.Name,
((RefType)navigationProperty.FromEndMember.TypeUsage.EdmType).ElementType.ClrType), navigationProperty));
member = null;
}
}
}
else
{
SessionData.EdmItemErrors.Add(new EdmItemError(System.Data.Entity.Strings.RelationshipNameInNavigationPropertyNotValid(
propertyInfo.Name, propertyInfo.DeclaringType.FullName, attribute.RelationshipName), declaringType));
}
if (member != null)
{
declaringType.AddMember(member);
}
}
/// <summary>
/// Load all the property metadata of the given type
/// </summary>
/// <param name="type">The CLR entity type</param>
/// <param name="structuralType">The type where properties are loaded</param>
/// <param name="context"></param>
private void LoadPropertiesFromType(StructuralType structuralType)
{
// Look at both public, internal, and private instanced properties declared at this type, inherited members
// are not looked at. Internal and private properties are also looked at because they are also schematized fields
PropertyInfo[] properties = structuralType.ClrType.GetProperties(PropertyReflectionBindingFlags);
foreach (PropertyInfo property in properties)
{
EdmMember newMember = null;
bool isEntityKeyProperty = false; //used for EdmScalarProperties only
// EdmScalarPropertyAttribute, EdmComplexPropertyAttribute and EdmRelationshipNavigationPropertyAttribute
// are all EdmPropertyAttributes that we need to process. If the current property is not an EdmPropertyAttribute
// we will just ignore it and skip to the next property.
if (property.IsDefined(typeof(EdmRelationshipNavigationPropertyAttribute), false))
{
// keep the loop var from being lifted
PropertyInfo pi = property;
_unresolvedNavigationProperties.Add(() =>
ResolveNavigationProperty(structuralType, pi));
}
else if (property.IsDefined(typeof(EdmScalarPropertyAttribute), false))
{
if ((Nullable.GetUnderlyingType(property.PropertyType) ?? property.PropertyType).IsEnum)
{
TrackClosure(property.PropertyType);
PropertyInfo local = property;
AddTypeResolver(() => ResolveEnumTypeProperty(structuralType, local));
}
else
{
newMember = LoadScalarProperty(structuralType.ClrType, property, out isEntityKeyProperty);
}
}
else if (property.IsDefined(typeof(EdmComplexPropertyAttribute), false))
{
TrackClosure(property.PropertyType);
// keep loop var from being lifted
PropertyInfo local = property;
AddTypeResolver(() => ResolveComplexTypeProperty(structuralType, local));
}
if (newMember == null)
{
// Property does not have one of the following attributes:
// EdmScalarPropertyAttribute, EdmComplexPropertyAttribute, EdmRelationshipNavigationPropertyAttribute
// This means its an unmapped property and can be ignored.
// Or there were error encountered while loading the properties
continue;
}
// Add the property object to the type
structuralType.AddMember(newMember);
// Add to the entity's collection of key members
// Do this here instead of in the if condition above for scalar properties because
// we want to make sure the AddMember call above did not fail before updating the key members
if (Helper.IsEntityType(structuralType) && isEntityKeyProperty)
{
((EntityType)structuralType).AddKeyMember(newMember);
}
}
}