Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataEntity / System / Data / Metadata / ObjectLayer / ObjectItemAssemblyLoader.cs / 1305376 / ObjectItemAssemblyLoader.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Collections.Generic; using System.Diagnostics; using System.Reflection; using System.Data.Entity; namespace System.Data.Metadata.Edm { internal abstract class ObjectItemAssemblyLoader { protected const BindingFlags PropertyReflectionBindingFlags = BindingFlags.DeclaredOnly | BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic; private readonly ObjectItemLoadingSessionData _sessionData; private Assembly _assembly; private AssemblyCacheEntry _cacheEntry; protected ObjectItemAssemblyLoader(Assembly assembly, AssemblyCacheEntry cacheEntry, ObjectItemLoadingSessionData sessionData) { _assembly = assembly; _cacheEntry = cacheEntry; _sessionData = sessionData; } internal virtual void Load() { AddToAssembliesLoaded(); LoadTypesFromAssembly(); AddToKnownAssemblies(); LoadClosureAssemblies(); } protected abstract void AddToAssembliesLoaded(); protected abstract void LoadTypesFromAssembly(); protected virtual void LoadClosureAssemblies() { LoadAssemblies(CacheEntry.ClosureAssemblies, SessionData); } internal virtual void OnLevel1SessionProcessing() { } internal virtual void OnLevel2SessionProcessing() { } internal static ObjectItemAssemblyLoader CreateLoader(Assembly assembly, ObjectItemLoadingSessionData sessionData) { ImmutableAssemblyCacheEntry cacheEntry; // KnownAssembly -> NoOp // Inside the LockedAssemblyCache means it is an attribute based assembly -> Cachedassembly // Inside the OcCache on EdmItemCollection -> cachedassembly // If none of above, setup the LoaderFactory based on the current assembly and EdmItemCollection if (sessionData.KnownAssemblies.Contains(assembly, sessionData.ObjectItemAssemblyLoaderFactory, sessionData.EdmItemCollection)) { return new ObjectItemNoOpAssemblyLoader(assembly, sessionData); } else if (sessionData.LockedAssemblyCache.TryGetValue(assembly, out cacheEntry)) { if (sessionData.ObjectItemAssemblyLoaderFactory == null) { if (cacheEntry.TypesInAssembly.Count != 0) { // we are loading based on attributes now sessionData.ObjectItemAssemblyLoaderFactory = ObjectItemAttributeAssemblyLoader.Create; } // if types in assembly are 0, don't commit to any loader yet } else if (sessionData.ObjectItemAssemblyLoaderFactory != ObjectItemAttributeAssemblyLoader.Create) { // we were loading in convention mode, and ran into an assembly that can't be loaded by convention // we know this because all cached assemblies are attribute based at the moment. sessionData.EdmItemErrors.Add(new EdmItemError(Strings.Validator_OSpace_Convention_AttributeAssemblyReferenced(assembly.FullName), null)); } return new ObjectItemCachedAssemblyLoader(assembly, cacheEntry, sessionData); } else if (sessionData.EdmItemCollection != null && sessionData.EdmItemCollection.ConventionalOcCache.TryGetConventionalOcCacheFromAssemblyCache( assembly, out cacheEntry)) { sessionData.ObjectItemAssemblyLoaderFactory = ObjectItemConventionAssemblyLoader.Create; return new ObjectItemCachedAssemblyLoader(assembly, cacheEntry, sessionData); } else if (sessionData.ObjectItemAssemblyLoaderFactory == null) { if (ObjectItemAttributeAssemblyLoader.IsSchemaAttributePresent(assembly)) { sessionData.ObjectItemAssemblyLoaderFactory = ObjectItemAttributeAssemblyLoader.Create; } else if (ObjectItemConventionAssemblyLoader.SessionContainsConventionParameters(sessionData)) { sessionData.ObjectItemAssemblyLoaderFactory = ObjectItemConventionAssemblyLoader.Create; } } if (sessionData.ObjectItemAssemblyLoaderFactory != null) { return sessionData.ObjectItemAssemblyLoaderFactory(assembly, sessionData); } return new ObjectItemNoOpAssemblyLoader(assembly, sessionData); } internal static bool IsAttributeLoader(object loaderCookie) { Debug.Assert(loaderCookie == null || loaderCookie is Func, "Non loader cookie passed in"); return IsAttributeLoader(loaderCookie as Func ); } internal static bool IsAttributeLoader(Func loaderFactory) { if (loaderFactory == null) { return false; } return loaderFactory == ObjectItemAttributeAssemblyLoader.Create; } internal static bool IsConventionLoader(Func loaderFactory) { if (loaderFactory == null) { return false; } return loaderFactory == ObjectItemConventionAssemblyLoader.Create; } protected virtual void AddToKnownAssemblies() { Debug.Assert(!_sessionData.KnownAssemblies.Contains(_assembly, SessionData.ObjectItemAssemblyLoaderFactory, _sessionData.EdmItemCollection), "This assembly must not be present in the list of known assemblies"); _sessionData.KnownAssemblies.Add(_assembly, new KnownAssemblyEntry(CacheEntry, SessionData.EdmItemCollection != null)); } protected static void LoadAssemblies(IEnumerable assemblies, ObjectItemLoadingSessionData sessionData) { foreach (Assembly assembly in assemblies) { ObjectItemAssemblyLoader loader = ObjectItemAssemblyLoader.CreateLoader(assembly, sessionData); loader.Load(); } } protected bool TryGetPrimitiveType(Type type, out bool nullable, out PrimitiveType primitiveType) { if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable<>)) { nullable = true; type = type.GetGenericArguments()[0]; } else { nullable = !type.IsValueType; } return ClrProviderManifest.Instance.TryGetPrimitiveType(type, out primitiveType); } protected ObjectItemLoadingSessionData SessionData { get { return _sessionData; } } protected Assembly SourceAssembly { get { return _assembly; } } protected AssemblyCacheEntry CacheEntry { get { return _cacheEntry; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- // // Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Collections.Generic; using System.Diagnostics; using System.Reflection; using System.Data.Entity; namespace System.Data.Metadata.Edm { internal abstract class ObjectItemAssemblyLoader { protected const BindingFlags PropertyReflectionBindingFlags = BindingFlags.DeclaredOnly | BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic; private readonly ObjectItemLoadingSessionData _sessionData; private Assembly _assembly; private AssemblyCacheEntry _cacheEntry; protected ObjectItemAssemblyLoader(Assembly assembly, AssemblyCacheEntry cacheEntry, ObjectItemLoadingSessionData sessionData) { _assembly = assembly; _cacheEntry = cacheEntry; _sessionData = sessionData; } internal virtual void Load() { AddToAssembliesLoaded(); LoadTypesFromAssembly(); AddToKnownAssemblies(); LoadClosureAssemblies(); } protected abstract void AddToAssembliesLoaded(); protected abstract void LoadTypesFromAssembly(); protected virtual void LoadClosureAssemblies() { LoadAssemblies(CacheEntry.ClosureAssemblies, SessionData); } internal virtual void OnLevel1SessionProcessing() { } internal virtual void OnLevel2SessionProcessing() { } internal static ObjectItemAssemblyLoader CreateLoader(Assembly assembly, ObjectItemLoadingSessionData sessionData) { ImmutableAssemblyCacheEntry cacheEntry; // KnownAssembly -> NoOp // Inside the LockedAssemblyCache means it is an attribute based assembly -> Cachedassembly // Inside the OcCache on EdmItemCollection -> cachedassembly // If none of above, setup the LoaderFactory based on the current assembly and EdmItemCollection if (sessionData.KnownAssemblies.Contains(assembly, sessionData.ObjectItemAssemblyLoaderFactory, sessionData.EdmItemCollection)) { return new ObjectItemNoOpAssemblyLoader(assembly, sessionData); } else if (sessionData.LockedAssemblyCache.TryGetValue(assembly, out cacheEntry)) { if (sessionData.ObjectItemAssemblyLoaderFactory == null) { if (cacheEntry.TypesInAssembly.Count != 0) { // we are loading based on attributes now sessionData.ObjectItemAssemblyLoaderFactory = ObjectItemAttributeAssemblyLoader.Create; } // if types in assembly are 0, don't commit to any loader yet } else if (sessionData.ObjectItemAssemblyLoaderFactory != ObjectItemAttributeAssemblyLoader.Create) { // we were loading in convention mode, and ran into an assembly that can't be loaded by convention // we know this because all cached assemblies are attribute based at the moment. sessionData.EdmItemErrors.Add(new EdmItemError(Strings.Validator_OSpace_Convention_AttributeAssemblyReferenced(assembly.FullName), null)); } return new ObjectItemCachedAssemblyLoader(assembly, cacheEntry, sessionData); } else if (sessionData.EdmItemCollection != null && sessionData.EdmItemCollection.ConventionalOcCache.TryGetConventionalOcCacheFromAssemblyCache( assembly, out cacheEntry)) { sessionData.ObjectItemAssemblyLoaderFactory = ObjectItemConventionAssemblyLoader.Create; return new ObjectItemCachedAssemblyLoader(assembly, cacheEntry, sessionData); } else if (sessionData.ObjectItemAssemblyLoaderFactory == null) { if (ObjectItemAttributeAssemblyLoader.IsSchemaAttributePresent(assembly)) { sessionData.ObjectItemAssemblyLoaderFactory = ObjectItemAttributeAssemblyLoader.Create; } else if (ObjectItemConventionAssemblyLoader.SessionContainsConventionParameters(sessionData)) { sessionData.ObjectItemAssemblyLoaderFactory = ObjectItemConventionAssemblyLoader.Create; } } if (sessionData.ObjectItemAssemblyLoaderFactory != null) { return sessionData.ObjectItemAssemblyLoaderFactory(assembly, sessionData); } return new ObjectItemNoOpAssemblyLoader(assembly, sessionData); } internal static bool IsAttributeLoader(object loaderCookie) { Debug.Assert(loaderCookie == null || loaderCookie is Func, "Non loader cookie passed in"); return IsAttributeLoader(loaderCookie as Func ); } internal static bool IsAttributeLoader(Func loaderFactory) { if (loaderFactory == null) { return false; } return loaderFactory == ObjectItemAttributeAssemblyLoader.Create; } internal static bool IsConventionLoader(Func loaderFactory) { if (loaderFactory == null) { return false; } return loaderFactory == ObjectItemConventionAssemblyLoader.Create; } protected virtual void AddToKnownAssemblies() { Debug.Assert(!_sessionData.KnownAssemblies.Contains(_assembly, SessionData.ObjectItemAssemblyLoaderFactory, _sessionData.EdmItemCollection), "This assembly must not be present in the list of known assemblies"); _sessionData.KnownAssemblies.Add(_assembly, new KnownAssemblyEntry(CacheEntry, SessionData.EdmItemCollection != null)); } protected static void LoadAssemblies(IEnumerable assemblies, ObjectItemLoadingSessionData sessionData) { foreach (Assembly assembly in assemblies) { ObjectItemAssemblyLoader loader = ObjectItemAssemblyLoader.CreateLoader(assembly, sessionData); loader.Load(); } } protected bool TryGetPrimitiveType(Type type, out bool nullable, out PrimitiveType primitiveType) { if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable<>)) { nullable = true; type = type.GetGenericArguments()[0]; } else { nullable = !type.IsValueType; } return ClrProviderManifest.Instance.TryGetPrimitiveType(type, out primitiveType); } protected ObjectItemLoadingSessionData SessionData { get { return _sessionData; } } protected Assembly SourceAssembly { get { return _assembly; } } protected AssemblyCacheEntry CacheEntry { get { return _cacheEntry; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ToolStripDropDownButton.cs
- DropTarget.cs
- DependentList.cs
- ResourceCodeDomSerializer.cs
- ObservableCollectionDefaultValueFactory.cs
- Effect.cs
- NativeMethods.cs
- DeflateEmulationStream.cs
- StyleHelper.cs
- DtrList.cs
- CommandSet.cs
- ObjectDataSourceMethodEventArgs.cs
- MetafileHeader.cs
- ServerIdentity.cs
- GB18030Encoding.cs
- Byte.cs
- OAVariantLib.cs
- CheckBoxField.cs
- DocumentPageViewAutomationPeer.cs
- DataSetFieldSchema.cs
- _DisconnectOverlappedAsyncResult.cs
- CmsInterop.cs
- TreeNodeCollection.cs
- RegexWriter.cs
- XmlDocumentSerializer.cs
- Stylesheet.cs
- Restrictions.cs
- Expr.cs
- ColorMatrix.cs
- ResXFileRef.cs
- PreviewPrintController.cs
- Win32MouseDevice.cs
- SignedPkcs7.cs
- ArcSegment.cs
- ViewManager.cs
- ModelFunction.cs
- CodeRemoveEventStatement.cs
- PropertyGridDesigner.cs
- xamlnodes.cs
- OrElse.cs
- XmlDataCollection.cs
- TraversalRequest.cs
- SecurityException.cs
- BinaryUtilClasses.cs
- MatchAllMessageFilter.cs
- Color.cs
- CheckBoxStandardAdapter.cs
- validationstate.cs
- ItemCheckEvent.cs
- BadImageFormatException.cs
- BinaryConverter.cs
- SplitterPanel.cs
- DeferredReference.cs
- Splitter.cs
- GridErrorDlg.cs
- Suspend.cs
- TraceHandler.cs
- XmlLanguage.cs
- TemplateKey.cs
- RectangleGeometry.cs
- WebPartZoneDesigner.cs
- SAPICategories.cs
- XComponentModel.cs
- ListView.cs
- HttpApplication.cs
- X509Utils.cs
- CultureInfo.cs
- CharConverter.cs
- WrappedKeySecurityToken.cs
- StickyNote.cs
- HttpValueCollection.cs
- GridProviderWrapper.cs
- AnimationClock.cs
- DbMetaDataColumnNames.cs
- DetailsView.cs
- Listbox.cs
- XPathMultyIterator.cs
- PostBackOptions.cs
- ModelFunction.cs
- HGlobalSafeHandle.cs
- wgx_render.cs
- EntityTypeEmitter.cs
- HandlerFactoryCache.cs
- BindingRestrictions.cs
- WebPartsPersonalizationAuthorization.cs
- DataObjectCopyingEventArgs.cs
- IsolationInterop.cs
- SecurityState.cs
- ObjectTag.cs
- XmlDocumentType.cs
- TypeSemantics.cs
- EventLogEntryCollection.cs
- smtpconnection.cs
- SrgsRule.cs
- TextBoxDesigner.cs
- ParagraphResult.cs
- StreamResourceInfo.cs
- IMembershipProvider.cs
- OptimalTextSource.cs
- DataKey.cs