/// <summary>
/// Validates the type of an entry in a top-level feed.
/// </summary>
/// <param name="entityType">The type of the entry.</param>
internal void ValidateEntry(IEdmEntityType entityType)
{
Debug.Assert(entityType != null, "entityType != null");
// If we don't have a type, store the type of the first item.
if (this.itemType == null)
{
this.itemType = entityType;
}
// Validate the expected and actual types.
if (this.itemType.IsEquivalentTo(entityType))
{
return;
}
// If the types are not equivalent, make sure they have a common base type.
IEdmType commonBaseType = EdmLibraryExtensions.GetCommonBaseType(this.itemType, entityType);
if (commonBaseType == null)
{
throw new ODataException(Strings.FeedWithoutExpectedTypeValidator_IncompatibleTypes(entityType.ODataFullName(), this.itemType.ODataFullName()));
}
this.itemType = (IEdmEntityType)commonBaseType;
}
/// <summary>
/// Validates the type of a resource in a top-level resource set.
/// </summary>
/// <param name="resourceType">The type of the resource.</param>
internal void ValidateResource(IEdmStructuredType resourceType)
{
if (resourceType == null)
{
return;
}
// If we don't have a type, store the type of the first item.
if (this.itemType == null)
{
this.itemType = resourceType;
}
// Validate the expected and actual types.
if (this.itemType.IsEquivalentTo(resourceType))
{
return;
}
// If the types are not equivalent, make sure they have a common base type.
IEdmType commonBaseType = EdmLibraryExtensions.GetCommonBaseType(this.itemType, resourceType);
if (commonBaseType == null)
{
throw new ODataException(Strings.ResourceSetWithoutExpectedTypeValidator_IncompatibleTypes(resourceType.FullTypeName(), this.itemType.FullTypeName()));
}
this.itemType = (IEdmStructuredType)commonBaseType;
}
/// <summary>
/// Validates the type of a resource in a top-level resource set.
/// </summary>
/// <param name="itemType">The type of the resource.</param>
internal void ValidateResource(IEdmType itemType)
{
if (this.itemType == null || this.itemType.TypeKind == EdmTypeKind.Untyped)
{
return;
}
// Validate the expected and actual types.
if (this.itemType.IsEquivalentTo(itemType))
{
return;
}
IEdmStructuredType structuredType = itemType as IEdmStructuredType;
IEdmStructuredType thisStructuredType = this.itemType as IEdmStructuredType;
if (structuredType == null || thisStructuredType == null)
{
throw new ODataException(Strings.ResourceSetWithoutExpectedTypeValidator_IncompatibleTypes(itemType.FullTypeName(), this.itemType.FullTypeName()));
}
// If the types are not equivalent, make sure they have a common base type.
IEdmType commonBaseType = EdmLibraryExtensions.GetCommonBaseType(thisStructuredType, structuredType);
if (commonBaseType == null)
{
throw new ODataException(Strings.ResourceSetWithoutExpectedTypeValidator_IncompatibleTypes(itemType.FullTypeName(), this.itemType.FullTypeName()));
}
this.itemType = (IEdmType)commonBaseType;
}
/// <summary>
/// Validate that the expected and actual type names and type kinds are compatible.
/// </summary>
/// <param name="collectionItemTypeName">The actual type name.</param>
/// <param name="collectionItemTypeKind">The actual type kind.</param>
private void ValidateCollectionItemTypeNameAndKind(string collectionItemTypeName, EdmTypeKind collectionItemTypeKind)
{
// Compare the item type kinds.
if (this.itemTypeKind != collectionItemTypeKind)
{
throw new ODataException(Strings.CollectionWithoutExpectedTypeValidator_IncompatibleItemTypeKind(collectionItemTypeKind, this.itemTypeKind));
}
if (this.itemTypeKind == EdmTypeKind.Primitive)
{
Debug.Assert(this.primitiveItemType != null, "this.primitiveItemType != null");
Debug.Assert(collectionItemTypeName != null, "collectionItemTypeName != null");
// NOTE: we do support type inheritance for spatial primitive types; otherwise the type names have to match.
if (!string.IsNullOrEmpty(this.itemTypeName) && this.itemTypeName.Equals(collectionItemTypeName, System.StringComparison.OrdinalIgnoreCase))
{
return;
}
if (this.primitiveItemType.IsSpatial())
{
EdmPrimitiveTypeKind collectionItemPrimitiveKind = EdmCoreModel.Instance.GetPrimitiveTypeKind(collectionItemTypeName);
IEdmPrimitiveType collectionItemPrimitiveType = EdmCoreModel.Instance.GetPrimitiveType(collectionItemPrimitiveKind);
if (this.itemTypeDerivedFromCollectionValue)
{
// If the collection defines an item type, the collection item type has to be assignable to it.
if (this.primitiveItemType.IsAssignableFrom(collectionItemPrimitiveType))
{
return;
}
}
else
{
// If the collection does not define an item type, the collection items must have a common base type.
IEdmPrimitiveType commonBaseType = EdmLibraryExtensions.GetCommonBaseType(this.primitiveItemType, collectionItemPrimitiveType);
if (commonBaseType != null)
{
this.primitiveItemType = commonBaseType;
this.itemTypeName = commonBaseType.FullTypeName();
return;
}
}
}
throw new ODataException(Strings.CollectionWithoutExpectedTypeValidator_IncompatibleItemTypeName(collectionItemTypeName, this.itemTypeName));
}
else
{
// Since we do not support type inheritance for complex types, comparison of the type names is sufficient
if (string.CompareOrdinal(this.itemTypeName, collectionItemTypeName) != 0)
{
throw new ODataException(Strings.CollectionWithoutExpectedTypeValidator_IncompatibleItemTypeName(collectionItemTypeName, this.itemTypeName));
}
}
}