internal ObjectItemLoadingSessionData(KnownAssembliesSet knownAssemblies, LockedAssemblyCache lockedAssemblyCache, EdmItemCollection edmItemCollection, Action <String> logLoadMessage, object loaderCookie) { Debug.Assert(loaderCookie == null || loaderCookie is Func <Assembly, ObjectItemLoadingSessionData, ObjectItemAssemblyLoader>, "This is a bad loader cookie"); _typesInLoading = new Dictionary <string, EdmType>(StringComparer.Ordinal); _errors = new List <EdmItemError>(); _knownAssemblies = knownAssemblies; _lockedAssemblyCache = lockedAssemblyCache; _loadersThatNeedLevel1PostSessionProcessing = new HashSet <ObjectItemAssemblyLoader>(); _loadersThatNeedLevel2PostSessionProcessing = new HashSet <ObjectItemAssemblyLoader>(); _edmItemCollection = edmItemCollection; _loadMessageLogger = new LoadMessageLogger(logLoadMessage); _cspaceToOspace = new Dictionary <EdmType, EdmType>(); _loaderFactory = (Func <Assembly, ObjectItemLoadingSessionData, ObjectItemAssemblyLoader>)loaderCookie; _originalLoaderCookie = loaderCookie; if (_loaderFactory == ObjectItemConventionAssemblyLoader.Create && _edmItemCollection != null) { foreach (KnownAssemblyEntry entry in _knownAssemblies.GetEntries(_loaderFactory, edmItemCollection)) { foreach (EdmType type in entry.CacheEntry.TypesInAssembly.OfType <EdmType>()) { if (Helper.IsEntityType(type)) { ClrEntityType entityType = (ClrEntityType)type; _cspaceToOspace.Add(_edmItemCollection.GetItem <StructuralType>(entityType.CSpaceTypeName), entityType); } else if (Helper.IsComplexType(type)) { ClrComplexType complexType = (ClrComplexType)type; _cspaceToOspace.Add(_edmItemCollection.GetItem <StructuralType>(complexType.CSpaceTypeName), complexType); } else if (Helper.IsEnumType(type)) { ClrEnumType enumType = (ClrEnumType)type; _cspaceToOspace.Add(_edmItemCollection.GetItem <EnumType>(enumType.CSpaceTypeName), enumType); } else { Debug.Assert(Helper.IsAssociationType(type)); _cspaceToOspace.Add(_edmItemCollection.GetItem <StructuralType>(type.FullName), type); } } } } }
protected override void LoadTypesFromAssembly() { foreach (Type type in EntityUtil.GetTypesSpecial(SourceAssembly)) { EdmType cspaceType; if (TryGetCSpaceTypeMatch(type, out cspaceType)) { if (type.IsValueType && !type.IsEnum) { SessionData.LoadMessageLogger.LogLoadMessage(Strings.Validator_OSpace_Convention_Struct(cspaceType.FullName, type.FullName), cspaceType); continue; } EdmType ospaceType; if (TryCreateType(type, cspaceType, out ospaceType)) { Debug.Assert(ospaceType is StructuralType || Helper.IsEnumType(ospaceType), "Only StructuralType or EnumType expected."); CacheEntry.TypesInAssembly.Add(ospaceType); // check for duplicates so we don't cause an ArgumentException, // Mapping will do the actual error for the duplicate type later if (!SessionData.CspaceToOspace.ContainsKey(cspaceType)) { SessionData.CspaceToOspace.Add(cspaceType, ospaceType); } else { // at this point there is already a Clr Type that is structurally matched to this CSpace type, we throw exception EdmType previousOSpaceType = SessionData.CspaceToOspace[cspaceType]; SessionData.EdmItemErrors.Add( new EdmItemError(Strings.Validator_OSpace_Convention_AmbiguousClrType(cspaceType.Name, previousOSpaceType.ClrType.FullName, type.FullName), previousOSpaceType)); } } } } if (SessionData.TypesInLoading.Count == 0) { Debug.Assert(CacheEntry.ClosureAssemblies.Count == 0, "How did we get closure assemblies?"); // since we didn't find any types, don't lock into convention based SessionData.ObjectItemAssemblyLoaderFactory = null; } }
/// <summary> /// Given the ospace type, returns the fullname of the mapped cspace type. /// Today, since we allow non-default mapping between entity type and complex type, /// this is only possible for entity and complex type. /// </summary> /// <param name="edmType"></param> /// <returns></returns> internal static string TryGetMappingCSpaceTypeIdentity(EdmType edmType) { Debug.Assert(DataSpace.OSpace == edmType.DataSpace, "DataSpace must be OSpace"); if (Helper.IsEntityType(edmType)) { return(((ClrEntityType)edmType).CSpaceTypeName); } else if (Helper.IsComplexType(edmType)) { return(((ClrComplexType)edmType).CSpaceTypeName); } else if (Helper.IsEnumType(edmType)) { return(((ClrEnumType)edmType).CSpaceTypeName); } return(edmType.Identity); }
/// <summary> /// Verifies whether enum members of CLR and EDM types match. /// </summary> /// <param name="enumType">OSpace CLR enum type.</param> /// <param name="cspaceEnumType">CSpace EDM enum type.</param> /// <returns><c>true</c> if members match. <c>false</c> otherwise.</returns> private bool EnumMembersMatch(Type enumType, EnumType cspaceEnumType) { Debug.Assert(enumType != null, "enumType != null"); Debug.Assert(enumType.IsEnum, "expected enum OSpace type"); Debug.Assert(cspaceEnumType != null, "cspaceEnumType != null"); Debug.Assert(Helper.IsEnumType(cspaceEnumType), "Enum type expected"); Debug.Assert(cspaceEnumType.UnderlyingType.ClrEquivalentType == enumType.GetEnumUnderlyingType(), "underlying types should have already been checked"); var enumUnderlyingType = enumType.GetEnumUnderlyingType(); var cspaceSortedEnumMemberEnumerator = cspaceEnumType.Members.OrderBy(m => m.Name).GetEnumerator(); var ospaceSortedEnumMemberNamesEnumerator = enumType.GetEnumNames().OrderBy(n => n).GetEnumerator(); // no checks required if edm enum type does not have any members if (!cspaceSortedEnumMemberEnumerator.MoveNext()) { return(true); } while (ospaceSortedEnumMemberNamesEnumerator.MoveNext()) { if (cspaceSortedEnumMemberEnumerator.Current.Name == ospaceSortedEnumMemberNamesEnumerator.Current && cspaceSortedEnumMemberEnumerator.Current.Value.Equals( Convert.ChangeType( Enum.Parse(enumType, ospaceSortedEnumMemberNamesEnumerator.Current), enumUnderlyingType, CultureInfo.InvariantCulture))) { if (!cspaceSortedEnumMemberEnumerator.MoveNext()) { return(true); } } } SessionData.LoadMessageLogger.LogLoadMessage( System.Data.Entity.Strings.Mapping_Enum_OCMapping_MemberMismatch( enumType.FullName, cspaceSortedEnumMemberEnumerator.Current.Name, cspaceSortedEnumMemberEnumerator.Current.Value, cspaceEnumType.FullName), cspaceEnumType); return(false); }
/// <summary> /// Validates whether cspace and sspace types are compatible. /// </summary> /// <param name="cspaceType">Type in C-Space. Must be a primitive or enumeration type.</param> /// <param name="storeType">C-Space equivalent of S-space Type. Must be a primitive type.</param> /// <returns> /// <c>true</c> if the types are compatible. <c>false</c> otherwise. /// </returns> /// <remarks> /// This methods validate whether cspace and sspace types are compatible. The types are /// compatible if: /// both are primitive and the cspace type is a subtype of sspace type /// or /// cspace type is an enumeration type whose underlying type is a subtype of sspace type. /// </remarks> private static bool ValidateScalarTypesAreCompatible(TypeUsage cspaceType, TypeUsage storeType) { Debug.Assert(cspaceType != null, "cspaceType != null"); Debug.Assert(storeType != null, "storeType != null"); Debug.Assert(cspaceType.EdmType.DataSpace == DataSpace.CSpace, "cspace property must have a cspace type"); Debug.Assert(storeType.EdmType.DataSpace == DataSpace.CSpace, "storeType type usage must have a sspace type"); Debug.Assert( Helper.IsScalarType(cspaceType.EdmType), "cspace property must be of a primitive or enumeration type"); Debug.Assert(Helper.IsPrimitiveType(storeType.EdmType), "storeType property must be a primitive type"); if (Helper.IsEnumType(cspaceType.EdmType)) { // For enum cspace type check whether its underlying type is a subtype of the store type. Note that // TypeSemantics.IsSubTypeOf uses only TypeUsage.EdmType for primitive types so there is no need to copy facets // from the enum type property to the underlying type TypeUsage created here since they wouldn't be used anyways. return(TypeSemantics.IsSubTypeOf(TypeUsage.Create(Helper.GetUnderlyingEdmTypeForEnumType(cspaceType.EdmType)), storeType)); } return(TypeSemantics.IsSubTypeOf(cspaceType, storeType)); }
/// <summary> /// Creates new enum OSpace type built based on CLR <paramref name="enumType"/> and <paramref name="cspaceEnumType"/> /// </summary> /// <param name="enumType">CLR type to create OSpace type from.</param> /// <param name="cspaceEnumType">CSpace type used to get namespace and name for the newly created OSpace type.</param> /// <param name="newOSpaceType"> /// New enum OSpace type built based on CLR <paramref name="enumType"/> and <paramref name="cspaceEnumType"/> or null /// if the type could not be built. /// </param> /// <returns><c>true</c> if the type was built successfully.<c>false</c> otherwise.</returns> private bool TryCreateEnumType(Type enumType, EnumType cspaceEnumType, out EdmType newOSpaceType) { Debug.Assert(enumType != null, "enumType != null"); Debug.Assert(enumType.IsEnum, "enum type expected"); Debug.Assert(cspaceEnumType != null, "cspaceEnumType != null"); Debug.Assert(Helper.IsEnumType(cspaceEnumType), "Enum type expected"); Debug.Assert(TypesMatchByConvention(enumType, cspaceEnumType), "The types passed as parameters don't match by convention."); newOSpaceType = null; // Check if the OSpace and CSpace enum type match if (!UnderlyingEnumTypesMatch(enumType, cspaceEnumType) || !EnumMembersMatch(enumType, cspaceEnumType)) { return(false); } newOSpaceType = new ClrEnumType(enumType, cspaceEnumType.NamespaceName, cspaceEnumType.Name); SessionData.TypesInLoading.Add(enumType.FullName, newOSpaceType); return(true); }
/// <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); } } }
/// <summary> /// determines if <paramref name="type"/> is primitive or enumeration type /// </summary> /// <param name="type">Type to verify.</param> /// <returns><c>true</c> if <paramref name="type"/> is primitive or enumeration type. <c>false</c> otherwise.</returns> internal static bool IsScalarType(EdmType type) { Debug.Assert(type != null, "type != null"); return(Helper.IsPrimitiveType(type) || Helper.IsEnumType(type)); }
/// <summary> /// determines if type is of EnumerationType. /// </summary> /// <param name="type"></param> /// <returns></returns> internal static bool IsEnumerationType(TypeUsage type) { Debug.Assert(type != null, "type != null"); return(Helper.IsEnumType(type.EdmType)); }
/// <summary> /// Determines if the given edmType is equal comparable. Consult "EntitySql Language Specification", /// section 7 - Comparison and Dependent Operations for details. /// </summary> /// <param name="edmType">an instance of an EdmType</param> /// <returns>true if edmType is equal-comparable, false otherwise</returns> private static bool IsEqualComparable(EdmType edmType) { if (Helper.IsPrimitiveType(edmType) || Helper.IsRefType(edmType) || Helper.IsEntityType(edmType) || Helper.IsEnumType(edmType)) { return(true); } else if (Helper.IsRowType(edmType)) { RowType rowType = (RowType)edmType; foreach (EdmProperty rowProperty in rowType.Properties) { if (!IsEqualComparable(rowProperty.TypeUsage)) { return(false); } } return(true); } return(false); }
/// <summary> /// Get the OSpace type given the CSpace typename /// </summary> /// <param name="cspaceTypeName"></param> /// <param name="ignoreCase"></param> /// <param name="edmType"></param> /// <returns></returns> internal bool TryGetOSpaceType(EdmType cspaceType, out EdmType edmType) { Debug.Assert(DataSpace.CSpace == cspaceType.DataSpace, "DataSpace should be CSpace"); // check if there is an entity, complex type or enum type mapping with this name if (Helper.IsEntityType(cspaceType) || Helper.IsComplexType(cspaceType) || Helper.IsEnumType(cspaceType)) { return(_ocMapping.TryGetValue(cspaceType.Identity, out edmType)); } return(TryGetItem <EdmType>(cspaceType.Identity, out edmType)); }
/// <summary> /// A helper method returning the underlying CLR type for the specified OSpace enum or structural type argument. /// If the DataSpace of the parameter is not OSpace, the method returns false and sets /// the out parameter to null. /// </summary> /// <param name="objectSpaceType">The OSpace enum type to look up</param> /// <param name="clrType">The CLR enum type of the OSpace argument</param> /// <returns>true on success, false on failure</returns> private static bool TryGetClrType(EdmType objectSpaceType, out Type clrType) { Debug.Assert(objectSpaceType == null || objectSpaceType is StructuralType || objectSpaceType is EnumType, "Only enum or structural type expected"); EntityUtil.CheckArgumentNull(objectSpaceType, "objectSpaceType"); if (objectSpaceType.DataSpace != DataSpace.OSpace) { throw EntityUtil.Argument(Strings.ArgumentMustBeOSpaceType, "objectSpaceType"); } clrType = null; if (Helper.IsEntityType(objectSpaceType) || Helper.IsComplexType(objectSpaceType) || Helper.IsEnumType(objectSpaceType)) { Debug.Assert(objectSpaceType is ClrEntityType || objectSpaceType is ClrComplexType || objectSpaceType is ClrEnumType, "Unexpected OSpace object type."); clrType = objectSpaceType.ClrType; Debug.Assert(clrType != null, "ClrType property of ClrEntityType/ClrComplexType/ClrEnumType objects must not be null"); } return(clrType != null); }
private static bool LoadAssemblyFromCache(ObjectItemCollection objectItemCollection, Assembly assembly, bool loadReferencedAssemblies, EdmItemCollection edmItemCollection, Action <String> logLoadMessage) { // Check if its loaded in the cache - if the call is for loading referenced assemblies, make sure that all referenced // assemblies are also loaded KnownAssemblyEntry entry; if (objectItemCollection._knownAssemblies.TryGetKnownAssembly(assembly, objectItemCollection._loaderCookie, edmItemCollection, out entry)) { // Proceed if only we need to load the referenced assemblies and they are not loaded if (loadReferencedAssemblies == false) { // don't say we loaded anything, unless we actually did before return(entry.CacheEntry.TypesInAssembly.Count != 0); } else if (entry.ReferencedAssembliesAreLoaded == true) { // this assembly was part of a all hands reference search return(true); } } lock (objectItemCollection.LoadAssemblyLock) { // Check after acquiring the lock, since the known assemblies might have got modified // Check if the assembly is already loaded. The reason we need to check if the assembly is already loaded, is that if (objectItemCollection._knownAssemblies.TryGetKnownAssembly(assembly, objectItemCollection._loaderCookie, edmItemCollection, out entry)) { // Proceed if only we need to load the referenced assemblies and they are not loaded if (loadReferencedAssemblies == false || entry.ReferencedAssembliesAreLoaded == true) { return(true); } } Dictionary <string, EdmType> typesInLoading; List <EdmItemError> errors; KnownAssembliesSet knownAssemblies; if (objectItemCollection != null) { knownAssemblies = new KnownAssembliesSet(objectItemCollection._knownAssemblies); } else { knownAssemblies = new KnownAssembliesSet(); } // Load the assembly from the cache AssemblyCache.LoadAssembly(assembly, loadReferencedAssemblies, knownAssemblies, edmItemCollection, logLoadMessage, ref objectItemCollection._loaderCookie, out typesInLoading, out errors); // Throw if we have encountered errors if (errors.Count != 0) { throw EntityUtil.InvalidSchemaEncountered(Helper.CombineErrorMessage(errors)); } // We can encounter new assemblies, but they may not have any time in them if (typesInLoading.Count != 0) { // No errors, so go ahead and add the types and make them readonly // The existence of the loading lock tells us whether we should be thread safe or not, if we need // to be thread safe, then we need to use AtomicAddRange. We don't need to actually use the lock // because the caller should have done it already // Recheck the assemblies added, another list is created just to match up the collection type // taken in by AtomicAddRange() List <GlobalItem> globalItems = new List <GlobalItem>(); foreach (EdmType edmType in typesInLoading.Values) { globalItems.Add(edmType); string cspaceTypeName = ""; try { // Also populate the ocmapping information if (Helper.IsEntityType(edmType)) { cspaceTypeName = ((ClrEntityType)edmType).CSpaceTypeName; objectItemCollection._ocMapping.Add(cspaceTypeName, edmType); } else if (Helper.IsComplexType(edmType)) { cspaceTypeName = ((ClrComplexType)edmType).CSpaceTypeName; objectItemCollection._ocMapping.Add(cspaceTypeName, edmType); } else if (Helper.IsEnumType(edmType)) { cspaceTypeName = ((ClrEnumType)edmType).CSpaceTypeName; objectItemCollection._ocMapping.Add(cspaceTypeName, edmType); } // for the rest of the types like a relationship type, we do not have oc mapping, // so we don't keep that information } catch (ArgumentException e) { throw new MappingException(Strings.Mapping_CannotMapCLRTypeMultipleTimes(cspaceTypeName), e); } } // Create a new ObjectItemCollection and add all the global items to it. // Also copy all the existing items from the existing collection objectItemCollection.AtomicAddRange(globalItems); } // Update the value of known assemblies objectItemCollection._knownAssemblies = knownAssemblies; foreach (Assembly loadedAssembly in knownAssemblies.Assemblies) { CollectIfViewGenAssembly(loadedAssembly); } return(typesInLoading.Count != 0); } }
private bool TryFindAndCreateEnumProperties(Type type, StructuralType cspaceType, StructuralType ospaceType, PropertyInfo[] clrProperties, List <Action> referenceResolutionListForCurrentType) { var typeClosureToTrack = new List <KeyValuePair <EdmProperty, PropertyInfo> >(); foreach (EdmProperty cspaceProperty in cspaceType.GetDeclaredOnlyMembers <EdmProperty>().Where(p => Helper.IsEnumType(p.TypeUsage.EdmType))) { PropertyInfo clrProperty = clrProperties.FirstOrDefault(p => MemberMatchesByConvention(p, cspaceProperty)); if (clrProperty != null) { typeClosureToTrack.Add(new KeyValuePair <EdmProperty, PropertyInfo>(cspaceProperty, clrProperty)); } else { string message = Strings.Validator_OSpace_Convention_MissingRequiredProperty(cspaceProperty.Name, type.FullName); SessionData.LoadMessageLogger.LogLoadMessage(message, cspaceType); return(false); } } foreach (var typeToTrack in typeClosureToTrack) { TrackClosure(typeToTrack.Value.PropertyType); // prevent the lifting of these closure variables var ot = ospaceType; var cp = typeToTrack.Key; var clrp = typeToTrack.Value; referenceResolutionListForCurrentType.Add(() => CreateAndAddEnumProperty(type, ot, cp, clrp)); } return(true); }