/// <summary>
/// Creates a structural OSpace type based on CLR type and CSpace type.
/// </summary>
/// <param name="type"> CLR type. </param>
/// <param name="cspaceType"> CSpace Type </param>
/// <param name="newOSpaceType">
/// OSpace type created based on CLR <paramref name="type" /> and <paramref name="cspaceType" />
/// </param>
/// <returns>
/// <c>true</c> if the type was created successfully. Otherwise <c>false</c> .
/// </returns>
private bool TryCreateStructuralType(Type type, StructuralType cspaceType, out EdmType newOSpaceType)
{
DebugCheck.NotNull(type);
DebugCheck.NotNull(cspaceType);
var referenceResolutionListForCurrentType = new List <Action>();
newOSpaceType = null;
Debug.Assert(TypesMatchByConvention(type, cspaceType), "The types passed as parameters don't match by convention.");
StructuralType ospaceType;
if (Helper.IsEntityType(cspaceType))
{
ospaceType = new ClrEntityType(type, cspaceType.NamespaceName, cspaceType.Name);
}
else
{
Debug.Assert(Helper.IsComplexType(cspaceType), "Invalid type attribute encountered");
ospaceType = new ClrComplexType(type, cspaceType.NamespaceName, cspaceType.Name);
}
if (cspaceType.BaseType != null)
{
if (TypesMatchByConvention(type.BaseType, cspaceType.BaseType))
{
TrackClosure(type.BaseType);
referenceResolutionListForCurrentType.Add(
() => ospaceType.BaseType = ResolveBaseType((StructuralType)cspaceType.BaseType, type));
}
else
{
var message = Strings.Validator_OSpace_Convention_BaseTypeIncompatible(
type.BaseType.FullName, type.FullName, cspaceType.BaseType.FullName);
SessionData.LoadMessageLogger.LogLoadMessage(message, cspaceType);
return(false);
}
}
// Load the properties for this type
if (!TryCreateMembers(type, cspaceType, ospaceType, referenceResolutionListForCurrentType))
{
return(false);
}
// Add this to the known type map so we won't try to load it again
SessionData.TypesInLoading.Add(type.FullName, ospaceType);
// we only add the referenceResolution to the list unless we structrually matched this type
foreach (var referenceResolution in referenceResolutionListForCurrentType)
{
_referenceResolutions.Add(referenceResolution);
}
newOSpaceType = ospaceType;
return(true);
}
public void LoadTypes_sets_all_loaded_types_to_read_only()
{
var mockFactory = CreateMockFactory();
var clrEntityType = new ClrEntityType(typeof(Random), "Cheese", "Pickle");
mockFactory.Object.LoadedTypes.Add("Pickle", clrEntityType);
new CodeFirstOSpaceLoader(mockFactory.Object).LoadTypes(new EdmItemCollection(), new ObjectItemCollection());
Assert.True(clrEntityType.IsReadOnly);
}
internal ObjectItemLoadingSessionData(
KnownAssembliesSet knownAssemblies,
LockedAssemblyCache lockedAssemblyCache,
EdmItemCollection edmItemCollection,
Action <string> logLoadMessage,
object loaderCookie)
{
this._typesInLoading = new Dictionary <string, EdmType>((IEqualityComparer <string>)StringComparer.Ordinal);
this._errors = new List <EdmItemError>();
this._knownAssemblies = knownAssemblies;
this._lockedAssemblyCache = lockedAssemblyCache;
this._edmItemCollection = edmItemCollection;
this._loadMessageLogger = new LoadMessageLogger(logLoadMessage);
this._cspaceToOspace = new Dictionary <EdmType, EdmType>();
this._loaderFactory = (Func <Assembly, ObjectItemLoadingSessionData, ObjectItemAssemblyLoader>)loaderCookie;
this._originalLoaderCookie = loaderCookie;
if (!(this._loaderFactory == new Func <Assembly, ObjectItemLoadingSessionData, ObjectItemAssemblyLoader>(ObjectItemConventionAssemblyLoader.Create)) || this._edmItemCollection == null)
{
return;
}
foreach (KnownAssemblyEntry entry in this._knownAssemblies.GetEntries((object)this._loaderFactory, edmItemCollection))
{
foreach (EdmType edmType in entry.CacheEntry.TypesInAssembly.OfType <EdmType>())
{
if (Helper.IsEntityType(edmType))
{
ClrEntityType clrEntityType = (ClrEntityType)edmType;
this._cspaceToOspace.Add((EdmType)this._edmItemCollection.GetItem <StructuralType>(clrEntityType.CSpaceTypeName), (EdmType)clrEntityType);
}
else if (Helper.IsComplexType(edmType))
{
ClrComplexType clrComplexType = (ClrComplexType)edmType;
this._cspaceToOspace.Add((EdmType)this._edmItemCollection.GetItem <StructuralType>(clrComplexType.CSpaceTypeName), (EdmType)clrComplexType);
}
else if (Helper.IsEnumType(edmType))
{
ClrEnumType clrEnumType = (ClrEnumType)edmType;
this._cspaceToOspace.Add((EdmType)this._edmItemCollection.GetItem <EnumType>(clrEnumType.CSpaceTypeName), (EdmType)clrEnumType);
}
else
{
this._cspaceToOspace.Add((EdmType)this._edmItemCollection.GetItem <StructuralType>(edmType.FullName), edmType);
}
}
}
}
public ProxyTypeBuilder(ClrEntityType ospaceEntityType)
{
_ospaceEntityType = ospaceEntityType;
_baseImplementor = new BaseProxyImplementor();
_ipocoImplementor = new IPOCOImplementor(ospaceEntityType);
_lazyLoadImplementor = new LazyLoadImplementor(ospaceEntityType);
_dataContractImplementor = new DataContractImplementor(ospaceEntityType);
_iserializableImplementor = new SerializableImplementor(ospaceEntityType);
}
/// <summary>
/// Build a CLR proxy type for the supplied EntityType.
/// </summary>
/// <param name="ospaceEntityType"> EntityType in O-Space that represents the CLR type to be proxied. </param>
/// <returns> EntityProxyTypeInfo object that contains the constructed proxy type, along with any behaviors associated with that type; or null if a proxy type cannot be constructed for the specified EntityType. </returns>
private static EntityProxyTypeInfo BuildType(
ModuleBuilder moduleBuilder,
ClrEntityType ospaceEntityType,
MetadataWorkspace workspace)
{
Debug.Assert(
_typeMapLock.IsUpgradeableReadLockHeld,
"EntityProxyTypeInfo.BuildType method was called without first acquiring an upgradeable read lock from _typeMapLock.");
EntityProxyTypeInfo proxyTypeInfo;
var proxyTypeBuilder = new ProxyTypeBuilder(ospaceEntityType);
var proxyType = proxyTypeBuilder.CreateType(moduleBuilder);
if (proxyType != null)
{
// Set the runtime assembly of the proxy types if it hasn't already been set.
// This is used by the IsProxyType method.
var typeAssembly = proxyType.Assembly;
if (!_proxyRuntimeAssemblies.Contains(typeAssembly))
{
_proxyRuntimeAssemblies.Add(typeAssembly);
AddAssemblyToResolveList(typeAssembly);
}
proxyTypeInfo = new EntityProxyTypeInfo(
proxyType,
ospaceEntityType,
proxyTypeBuilder.CreateInitalizeCollectionMethod(proxyType),
proxyTypeBuilder.BaseGetters,
proxyTypeBuilder.BaseSetters,
workspace);
foreach (var member in proxyTypeBuilder.LazyLoadMembers)
{
InterceptMember(member, proxyType, proxyTypeInfo);
}
SetResetFKSetterFlagDelegate(proxyType, proxyTypeInfo);
SetCompareByteArraysDelegate(proxyType);
}
else
{
proxyTypeInfo = null;
}
return proxyTypeInfo;
}
/// <summary>
/// Return proxy type information for the specified O-Space EntityType.
/// </summary>
/// <param name="ospaceEntityType"> EntityType in O-Space that represents the CLR type to be proxied. Must not be null. </param>
/// <returns> A non-null EntityProxyTypeInfo instance that contains information about the type of proxy for the specified O-Space EntityType; or null if no proxy can be created for the specified type. </returns>
internal static EntityProxyTypeInfo GetProxyType(ClrEntityType ospaceEntityType, MetadataWorkspace workspace)
{
DebugCheck.NotNull(ospaceEntityType);
DebugCheck.NotNull(workspace);
Debug.Assert(ospaceEntityType.DataSpace == DataSpace.OSpace, "ospaceEntityType.DataSpace must be OSpace");
EntityProxyTypeInfo proxyTypeInfo = null;
// Check if an entry for the proxy type already exists.
if (TryGetProxyType(ospaceEntityType.ClrType, ospaceEntityType.CSpaceTypeName, out proxyTypeInfo))
{
if (proxyTypeInfo != null)
{
proxyTypeInfo.ValidateType(ospaceEntityType);
}
return proxyTypeInfo;
}
// No entry found, may need to create one.
// Acquire an upgradeable read lock so that:
// 1. Other readers aren't blocked while the second existence check is performed.
// 2. Other threads that may have also detected the absence of an entry block while the first thread handles proxy type creation.
_typeMapLock.EnterUpgradeableReadLock();
try
{
return TryCreateProxyType(ospaceEntityType, workspace);
}
finally
{
_typeMapLock.ExitUpgradeableReadLock();
}
}
private bool TryCreateStructuralType(Type type, StructuralType cspaceType, out EdmType newOSpaceType)
{
DebugCheck.NotNull(type);
DebugCheck.NotNull(cspaceType);
var referenceResolutionListForCurrentType = new List<Action>();
newOSpaceType = null;
StructuralType ospaceType;
if (Helper.IsEntityType(cspaceType))
{
ospaceType = new ClrEntityType(type, cspaceType.NamespaceName, cspaceType.Name);
}
else
{
Debug.Assert(Helper.IsComplexType(cspaceType), "Invalid type attribute encountered");
ospaceType = new ClrComplexType(type, cspaceType.NamespaceName, cspaceType.Name);
}
if (cspaceType.BaseType != null)
{
if (TypesMatchByConvention(type.BaseType(), cspaceType.BaseType))
{
TrackClosure(type.BaseType());
referenceResolutionListForCurrentType.Add(
() => ospaceType.BaseType = ResolveBaseType((StructuralType)cspaceType.BaseType, type));
}
else
{
var message = Strings.Validator_OSpace_Convention_BaseTypeIncompatible(
type.BaseType().FullName, type.FullName, cspaceType.BaseType.FullName);
LogLoadMessage(message, cspaceType);
return false;
}
}
// Load the properties for this type
if (!TryCreateMembers(type, cspaceType, ospaceType, referenceResolutionListForCurrentType))
{
return false;
}
// Add this to the known type map so we won't try to load it again
LoadedTypes.Add(type.FullName, ospaceType);
// we only add the referenceResolution to the list unless we structrually matched this type
foreach (var referenceResolution in referenceResolutionListForCurrentType)
{
ReferenceResolutions.Add(referenceResolution);
}
newOSpaceType = ospaceType;
return true;
}
/// <summary>
/// Load metadata of the given type - when you call this method, you should check and make sure that the type has
/// edm attribute. If it doesn't,we won't load the type and it will be returned as null
/// </summary>
/// <param name="clrType"> </param>
/// <param name="context"> </param>
/// <returns> </returns>
private void LoadType(Type clrType)
{
Debug.Assert(clrType.Assembly == SourceAssembly, "Why are we loading a type that is not in our assembly?");
Debug.Assert(!SessionData.TypesInLoading.ContainsKey(clrType.FullName), "Trying to load a type that is already loaded???");
Debug.Assert(!clrType.IsGenericType, "Generic type is not supported");
EdmType edmType = null;
var typeAttributes = (EdmTypeAttribute[])clrType.GetCustomAttributes(typeof(EdmTypeAttribute), false /*inherit*/);
// the CLR doesn't allow types to have duplicate/multiple attribute declarations
if (typeAttributes.Length != 0)
{
if (clrType.IsNested)
{
SessionData.EdmItemErrors.Add(
new EdmItemError(Strings.NestedClassNotSupported(clrType.FullName, clrType.Assembly.FullName)));
return;
}
var typeAttribute = typeAttributes[0];
var cspaceTypeName = String.IsNullOrEmpty(typeAttribute.Name) ? clrType.Name : typeAttribute.Name;
if (String.IsNullOrEmpty(typeAttribute.NamespaceName)
&& clrType.Namespace == null)
{
SessionData.EdmItemErrors.Add(new EdmItemError(Strings.Validator_TypeHasNoNamespace));
return;
}
var cspaceNamespaceName = String.IsNullOrEmpty(typeAttribute.NamespaceName)
? clrType.Namespace
: typeAttribute.NamespaceName;
if (typeAttribute.GetType()
== typeof(EdmEntityTypeAttribute))
{
edmType = new ClrEntityType(clrType, cspaceNamespaceName, cspaceTypeName);
}
else if (typeAttribute.GetType()
== typeof(EdmComplexTypeAttribute))
{
edmType = new ClrComplexType(clrType, cspaceNamespaceName, cspaceTypeName);
}
else
{
Debug.Assert(typeAttribute is EdmEnumTypeAttribute, "Invalid type attribute encountered");
// Note that TryGetPrimitiveType() will return false not only for types that are not primitive
// but also for CLR primitive types that are valid underlying enum types in CLR but are not
// a valid Edm primitive types (e.g. ulong)
PrimitiveType underlyingEnumType;
if (!ClrProviderManifest.Instance.TryGetPrimitiveType(clrType.GetEnumUnderlyingType(), out underlyingEnumType))
{
SessionData.EdmItemErrors.Add(
new EdmItemError(
Strings.Validator_UnsupportedEnumUnderlyingType(clrType.GetEnumUnderlyingType().FullName)));
return;
}
edmType = new ClrEnumType(clrType, cspaceNamespaceName, cspaceTypeName);
}
}
else
{
// not a type we are interested
return;
}
Debug.Assert(
!CacheEntry.ContainsType(edmType.Identity), "This type must not be already present in the list of types for this assembly");
// Also add this to the list of the types for this assembly
CacheEntry.TypesInAssembly.Add(edmType);
// Add this to the known type map so we won't try to load it again
SessionData.TypesInLoading.Add(clrType.FullName, edmType);
// Load properties for structural type
if (Helper.IsStructuralType(edmType))
{
//Load base type only for entity type - not sure if we will allow complex type inheritance
if (Helper.IsEntityType(edmType))
{
TrackClosure(clrType.BaseType);
AddTypeResolver(
() => edmType.BaseType = ResolveBaseType(clrType.BaseType));
}
// Load the properties for this type
LoadPropertiesFromType((StructuralType)edmType);
}
return;
}
internal EntityProxyTypeInfo(
Type proxyType,
ClrEntityType ospaceEntityType,
DynamicMethod initializeCollections,
List<PropertyInfo> baseGetters,
List<PropertyInfo> baseSetters,
MetadataWorkspace workspace)
{
DebugCheck.NotNull(proxyType);
DebugCheck.NotNull(workspace);
_proxyType = proxyType;
_entityType = ospaceEntityType;
_initializeCollections = initializeCollections;
foreach (var relationshipType in GetAllRelationshipsForType(workspace, proxyType))
{
_navigationPropertyAssociationTypes.Add(relationshipType.FullName, relationshipType);
if (relationshipType.Name != relationshipType.FullName)
{
// Sometimes there isn't enough metadata to have a container name
// Default codegen doesn't qualify names
_navigationPropertyAssociationTypes.Add(relationshipType.Name, relationshipType);
}
}
var entityWrapperField = proxyType.GetField(
EntityWrapperFieldName, BindingFlags.DeclaredOnly | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance);
var Object_Parameter = Expression.Parameter(typeof(object), "proxy");
var Value_Parameter = Expression.Parameter(typeof(object), "value");
Debug.Assert(entityWrapperField != null, "entityWrapperField does not exist");
// Create the Wrapper Getter
var lambda = Expression.Lambda<Func<object, object>>(
Expression.Field(
Expression.Convert(Object_Parameter, entityWrapperField.DeclaringType), entityWrapperField),
Object_Parameter);
var getEntityWrapperDelegate = lambda.Compile();
Proxy_GetEntityWrapper = (object proxy) =>
{
// This code validates that the wrapper points to the proxy that holds the wrapper.
// This guards against mischief by switching this wrapper out for another one obtained
// from a different object.
var wrapper = ((IEntityWrapper)getEntityWrapperDelegate(proxy));
if (wrapper != null
&& !ReferenceEquals(wrapper.Entity, proxy))
{
throw new InvalidOperationException(Strings.EntityProxyTypeInfo_ProxyHasWrongWrapper);
}
return wrapper;
};
// Create the Wrapper setter
Proxy_SetEntityWrapper = Expression.Lambda<Func<object, object, object>>(
Expression.Assign(
Expression.Field(
Expression.Convert(Object_Parameter, entityWrapperField.DeclaringType),
entityWrapperField),
Value_Parameter),
Object_Parameter, Value_Parameter).Compile();
var PropertyName_Parameter = Expression.Parameter(typeof(string), "propertyName");
var baseGetterMethod = proxyType.GetMethod(
"GetBasePropertyValue", BindingFlags.Public | BindingFlags.Instance, null, new[] { typeof(string) }, null);
if (baseGetterMethod != null)
{
_baseGetter = Expression.Lambda<Func<object, string, object>>(
Expression.Call(Expression.Convert(Object_Parameter, proxyType), baseGetterMethod, PropertyName_Parameter),
Object_Parameter, PropertyName_Parameter).Compile();
}
var PropertyValue_Parameter = Expression.Parameter(typeof(object), "propertyName");
var baseSetterMethod = proxyType.GetMethod(
"SetBasePropertyValue", BindingFlags.Public | BindingFlags.Instance, null, new[] { typeof(string), typeof(object) }, null);
if (baseSetterMethod != null)
{
_baseSetter = Expression.Lambda<Action<object, string, object>>(
Expression.Call(
Expression.Convert(Object_Parameter, proxyType), baseSetterMethod, PropertyName_Parameter, PropertyValue_Parameter),
Object_Parameter, PropertyName_Parameter, PropertyValue_Parameter).Compile();
}
_propertiesWithBaseGetter = new HashSet<string>(baseGetters.Select(p => p.Name));
_propertiesWithBaseSetter = new HashSet<string>(baseSetters.Select(p => p.Name));
_createObject = DelegateFactory.CreateConstructor(proxyType);
}
public void ValidateType(ClrEntityType ospaceEntityType)
{
if (ospaceEntityType != _entityType
&& ospaceEntityType.HashedDescription != _entityType.HashedDescription)
{
Debug.Assert(ospaceEntityType.ClrType == _entityType.ClrType);
throw new InvalidOperationException(Strings.EntityProxyTypeInfo_DuplicateOSpaceType(ospaceEntityType.ClrType.FullName));
}
}
private void LoadType(Type clrType)
{
Debug.Assert(clrType.Assembly() == SourceAssembly, "Why are we loading a type that is not in our assembly?");
Debug.Assert(!SessionData.TypesInLoading.ContainsKey(clrType.FullName), "Trying to load a type that is already loaded???");
Debug.Assert(!clrType.IsGenericType(), "Generic type is not supported");
EdmType edmType = null;
var typeAttributes = clrType.GetCustomAttributes <EdmTypeAttribute>(inherit: false);
// the CLR doesn't allow types to have duplicate/multiple attribute declarations
if (typeAttributes.Any())
{
if (clrType.IsNested)
{
SessionData.EdmItemErrors.Add(
new EdmItemError(Strings.NestedClassNotSupported(clrType.FullName, clrType.Assembly().FullName)));
return;
}
var typeAttribute = typeAttributes.First();
var cspaceTypeName = String.IsNullOrEmpty(typeAttribute.Name) ? clrType.Name : typeAttribute.Name;
if (String.IsNullOrEmpty(typeAttribute.NamespaceName) &&
clrType.Namespace == null)
{
SessionData.EdmItemErrors.Add(new EdmItemError(Strings.Validator_TypeHasNoNamespace));
return;
}
var cspaceNamespaceName = String.IsNullOrEmpty(typeAttribute.NamespaceName)
? clrType.Namespace
: typeAttribute.NamespaceName;
if (typeAttribute.GetType() == typeof(EdmEntityTypeAttribute))
{
edmType = new ClrEntityType(clrType, cspaceNamespaceName, cspaceTypeName);
}
else if (typeAttribute.GetType() == typeof(EdmComplexTypeAttribute))
{
edmType = new ClrComplexType(clrType, cspaceNamespaceName, cspaceTypeName);
}
else
{
Debug.Assert(typeAttribute is EdmEnumTypeAttribute, "Invalid type attribute encountered");
// Note that TryGetPrimitiveType() will return false not only for types that are not primitive
// but also for CLR primitive types that are valid underlying enum types in CLR but are not
// a valid Edm primitive types (e.g. ulong)
PrimitiveType underlyingEnumType;
if (!ClrProviderManifest.Instance.TryGetPrimitiveType(clrType.GetEnumUnderlyingType(), out underlyingEnumType))
{
SessionData.EdmItemErrors.Add(
new EdmItemError(
Strings.Validator_UnsupportedEnumUnderlyingType(clrType.GetEnumUnderlyingType().FullName)));
return;
}
edmType = new ClrEnumType(clrType, cspaceNamespaceName, cspaceTypeName);
}
}
else
{
// not a type we are interested
return;
}
Debug.Assert(
!CacheEntry.ContainsType(edmType.Identity), "This type must not be already present in the list of types for this assembly");
// Also add this to the list of the types for this assembly
CacheEntry.TypesInAssembly.Add(edmType);
// Add this to the known type map so we won't try to load it again
SessionData.TypesInLoading.Add(clrType.FullName, edmType);
// Load properties for structural type
if (Helper.IsStructuralType(edmType))
{
//Load base type only for entity type - not sure if we will allow complex type inheritance
if (Helper.IsEntityType(edmType))
{
TrackClosure(clrType.BaseType());
AddTypeResolver(
() => edmType.BaseType = ResolveBaseType(clrType.BaseType()));
}
// Load the properties for this type
LoadPropertiesFromType((StructuralType)edmType);
}
return;
}
