internal static void LoadAssembly(Assembly assembly, bool loadReferencedAssemblies,
KnownAssembliesSet knownAssemblies, out Dictionary <string, EdmType> typesInLoading, out List <EdmItemError> errors)
{
object loaderCookie = null;
LoadAssembly(assembly, loadReferencedAssemblies, knownAssemblies, null, null, ref loaderCookie, out typesInLoading, out errors);
}
internal static void LoadAssembly(
Assembly assembly, bool loadReferencedAssemblies,
KnownAssembliesSet knownAssemblies, EdmItemCollection edmItemCollection, Action<String> logLoadMessage, ref object loaderCookie,
out Dictionary<string, EdmType> typesInLoading, out List<EdmItemError> errors)
{
Debug.Assert(
loaderCookie == null || loaderCookie is Func<Assembly, ObjectItemLoadingSessionData, ObjectItemAssemblyLoader>,
"This is a bad loader cookie");
typesInLoading = null;
errors = null;
using (var lockedAssemblyCache = AquireLockedAssemblyCache())
{
var loadingData = new ObjectItemLoadingSessionData(
knownAssemblies, lockedAssemblyCache, edmItemCollection, logLoadMessage, loaderCookie);
LoadAssembly(assembly, loadReferencedAssemblies, loadingData);
loaderCookie = loadingData.LoaderCookie;
// resolve references to top level types (base types, navigation properties returns and associations, and complex type properties)
loadingData.CompleteSession();
if (loadingData.EdmItemErrors.Count == 0)
{
// do the validation for the all the new types
// Now, perform validation on all the new types
var validator = new EdmValidator();
validator.SkipReadOnlyItems = true;
validator.Validate(loadingData.TypesInLoading.Values, loadingData.EdmItemErrors);
// Update the global cache if there are no errors
if (loadingData.EdmItemErrors.Count == 0)
{
if (ObjectItemAssemblyLoader.IsAttributeLoader(loadingData.ObjectItemAssemblyLoaderFactory))
{
// we only cache items from the attribute loader globally, the
// items loaded by convention will change depending on the cspace
// provided. cspace will have a cache of it's own for assemblies
UpdateCache(lockedAssemblyCache, loadingData.AssembliesLoaded);
}
else if (loadingData.EdmItemCollection != null
&&
ObjectItemAssemblyLoader.IsConventionLoader(loadingData.ObjectItemAssemblyLoaderFactory))
{
UpdateCache(loadingData.EdmItemCollection, loadingData.AssembliesLoaded);
}
}
}
if (loadingData.TypesInLoading.Count > 0)
{
foreach (var edmType in loadingData.TypesInLoading.Values)
{
edmType.SetReadOnly();
}
}
// Update the out parameters once you are done with loading
typesInLoading = loadingData.TypesInLoading;
errors = loadingData.EdmItemErrors;
}
}
internal static void LoadAssembly(
Assembly assembly, bool loadReferencedAssemblies,
KnownAssembliesSet knownAssemblies, out Dictionary<string, EdmType> typesInLoading, out List<EdmItemError> errors)
{
object loaderCookie = null;
LoadAssembly(assembly, loadReferencedAssemblies, knownAssemblies, null, null, ref loaderCookie, out typesInLoading, out errors);
}
internal static void LoadAssembly(Assembly assembly, bool loadReferencedAssemblies,
KnownAssembliesSet knownAssemblies, EdmItemCollection edmItemCollection, Action <String> logLoadMessage, ref object loaderCookie, out Dictionary <string, EdmType> typesInLoading, out List <EdmItemError> errors)
{
Debug.Assert(loaderCookie == null || loaderCookie is Func <Assembly, ObjectItemLoadingSessionData, ObjectItemAssemblyLoader>, "This is a bad loader cookie");
typesInLoading = null;
errors = null;
using (LockedAssemblyCache lockedAssemblyCache = AssemblyCache.AquireLockedAssemblyCache())
{
ObjectItemLoadingSessionData loadingData = new ObjectItemLoadingSessionData(knownAssemblies, lockedAssemblyCache, edmItemCollection, logLoadMessage, loaderCookie);
LoadAssembly(assembly, loadReferencedAssemblies, loadingData);
loaderCookie = loadingData.LoaderCookie;
// resolve references to top level types (base types, navigation properties returns and associations, and complex type properties)
loadingData.CompleteSession();
if (loadingData.EdmItemErrors.Count == 0)
{
// do the validation for the all the new types
// Now, perform validation on all the new types
EdmValidator validator = new EdmValidator();
validator.SkipReadOnlyItems = true;
validator.Validate(loadingData.TypesInLoading.Values, loadingData.EdmItemErrors);
// Update the global cache if there are no errors
if (loadingData.EdmItemErrors.Count == 0)
{
if (ObjectItemAssemblyLoader.IsAttributeLoader(loadingData.ObjectItemAssemblyLoaderFactory))
{
// we only cache items from the attribute loader globally, the
// items loaded by convention will change depending on the cspace
// provided. cspace will have a cache of it's own for assemblies
UpdateCache(lockedAssemblyCache, loadingData.AssembliesLoaded);
}
else if (loadingData.EdmItemCollection != null &&
ObjectItemAssemblyLoader.IsConventionLoader(loadingData.ObjectItemAssemblyLoaderFactory))
{
UpdateCache(loadingData.EdmItemCollection, loadingData.AssembliesLoaded);
}
}
}
if (loadingData.TypesInLoading.Count > 0)
{
foreach (EdmType edmType in loadingData.TypesInLoading.Values)
{
edmType.SetReadOnly();
}
}
// Update the out parameters once you are done with loading
typesInLoading = loadingData.TypesInLoading;
errors = loadingData.EdmItemErrors;
}
}
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);
}
}
}
}
}
/// <summary>
/// Loads the OSpace types in the assembly and returns them as a dictionary
/// </summary>
/// <param name="assembly">The assembly to load</param>
/// <returns>A mapping from names to OSpace EdmTypes</returns>
internal static Dictionary <string, EdmType> LoadTypesExpensiveWay(Assembly assembly)
{
Dictionary <string, EdmType> typesInLoading = null;
List <EdmItemError> errors;
KnownAssembliesSet knownAssemblies = new KnownAssembliesSet();
AssemblyCache.LoadAssembly(assembly, false /*loadAllReferencedAssemblies*/,
knownAssemblies, out typesInLoading, out errors);
// Check for errors
if (errors.Count != 0)
{
throw EntityUtil.InvalidSchemaEncountered(Helper.CombineErrorMessage(errors));
}
return(typesInLoading);
}
internal KnownAssembliesSet(KnownAssembliesSet set)
{
_assemblies = new Dictionary<Assembly, KnownAssemblyEntry>(set._assemblies);
}
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);
}
}
}
}
}
internal KnownAssembliesSet(KnownAssembliesSet set)
{
_assemblies = new Dictionary <Assembly, KnownAssemblyEntry>(set._assemblies);
}
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);
}
}