Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataEntity / System / Data / Metadata / ObjectLayer / ObjectItemLoadingSessionData.cs / 1305376 / ObjectItemLoadingSessionData.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Reflection; using System.Linq; using System.Collections.Generic; using System.Diagnostics; namespace System.Data.Metadata.Edm { internal sealed class ObjectItemLoadingSessionData { private Func_loaderFactory; // all the types that we encountered while loading - this may contain types from various assemblies private readonly Dictionary _typesInLoading; // private bool _conventionBasedRelationshipsAreLoaded = false; private LoadMessageLogger _loadMessageLogger; // list of errors encountered during loading private readonly List _errors; // keep the list of new assemblies that got loaded in this load assembly call. The reason why we need to keep a seperate // list of assemblies is that we keep track of errors, and if there are no errors, only then do we add the list of assemblies // to the global cache. Hence global cache is never polluted with invalid assemblies private readonly Dictionary _listOfAssembliesLoaded = new Dictionary (); // List of known assemblies - this list is initially passed by the caller and we keep adding to it, as and when we load // an assembly private readonly KnownAssembliesSet _knownAssemblies; private readonly LockedAssemblyCache _lockedAssemblyCache; private readonly HashSet _loadersThatNeedLevel1PostSessionProcessing; private readonly HashSet _loadersThatNeedLevel2PostSessionProcessing; private readonly EdmItemCollection _edmItemCollection; private Dictionary > _conventionCSpaceTypeNames; private Dictionary _cspaceToOspace; private object _originalLoaderCookie; internal Dictionary TypesInLoading { get { return _typesInLoading; } } internal Dictionary AssembliesLoaded { get { return _listOfAssembliesLoaded; } } internal List EdmItemErrors { get { return _errors; } } internal KnownAssembliesSet KnownAssemblies { get { return _knownAssemblies; } } internal LockedAssemblyCache LockedAssemblyCache { get { return _lockedAssemblyCache; } } internal EdmItemCollection EdmItemCollection { get { return _edmItemCollection; } } internal Dictionary CspaceToOspace{ get { return _cspaceToOspace; } } internal bool ConventionBasedRelationshipsAreLoaded { get { return _conventionBasedRelationshipsAreLoaded; } set { _conventionBasedRelationshipsAreLoaded = value; } } internal LoadMessageLogger LoadMessageLogger { get { return this._loadMessageLogger; } } // dictionary of types by name (not including namespace), we also track duplicate names // so if one of those types is used we can log an error internal Dictionary > ConventionCSpaceTypeNames { get { if (_edmItemCollection != null && _conventionCSpaceTypeNames == null) { _conventionCSpaceTypeNames = new Dictionary >(); // create the map and cache it foreach (var structuralType in _edmItemCollection.GetItems ().Where(item => item.BuiltInTypeKind != BuiltInTypeKind.AssociationType)) { KeyValuePair pair; if (_conventionCSpaceTypeNames.TryGetValue(structuralType.Name, out pair)) { _conventionCSpaceTypeNames[structuralType.Name] = new KeyValuePair (pair.Key, pair.Value + 1); } else { pair = new KeyValuePair (structuralType, 1); _conventionCSpaceTypeNames.Add(structuralType.Name, pair); } } } return _conventionCSpaceTypeNames; } } internal Func ObjectItemAssemblyLoaderFactory { get { return _loaderFactory; } set { if (_loaderFactory != value) { Debug.Assert(_loaderFactory == null || _typesInLoading.Count == 0, "Only reset the factory after types have not been loaded or load from the cache"); _loaderFactory = value; } } } internal object LoaderCookie { get { // be sure we get the same factory/cookie as we had before... if we had one if (_originalLoaderCookie != null) { Debug.Assert(_loaderFactory == null || (object)_loaderFactory == _originalLoaderCookie, "The loader factory should determine the next loader, so we should always have the same loader factory"); return _originalLoaderCookie; } return _loaderFactory; } } internal ObjectItemLoadingSessionData(KnownAssembliesSet knownAssemblies, LockedAssemblyCache lockedAssemblyCache, EdmItemCollection edmItemCollection, Action logLoadMessage, object loaderCookie) { Debug.Assert(loaderCookie == null || loaderCookie is Func , "This is a bad loader cookie"); _typesInLoading = new Dictionary (StringComparer.Ordinal); _errors = new List (); _knownAssemblies = knownAssemblies; _lockedAssemblyCache = lockedAssemblyCache; _loadersThatNeedLevel1PostSessionProcessing = new HashSet (); _loadersThatNeedLevel2PostSessionProcessing = new HashSet (); _edmItemCollection = edmItemCollection; _loadMessageLogger = new LoadMessageLogger(logLoadMessage); _cspaceToOspace = new Dictionary (); _loaderFactory = (Func )loaderCookie; _originalLoaderCookie = loaderCookie; if (_loaderFactory == ObjectItemConventionAssemblyLoader.Create && _edmItemCollection != null) { foreach (KnownAssemblyEntry entry in _knownAssemblies.GetEntries(_loaderFactory, edmItemCollection)) { foreach (StructuralType type in entry.CacheEntry.TypesInAssembly.OfType ()) { if (Helper.IsEntityType(type)) { ClrEntityType entityType = (ClrEntityType)type; _cspaceToOspace.Add(_edmItemCollection.GetItem (entityType.CSpaceTypeName), entityType); } else if (Helper.IsComplexType(type)) { ClrComplexType complexType = (ClrComplexType)type; _cspaceToOspace.Add(_edmItemCollection.GetItem (complexType.CSpaceTypeName), complexType); } else { Debug.Assert(Helper.IsAssociationType(type)); _cspaceToOspace.Add(_edmItemCollection.GetItem (type.FullName), type); } } } } } internal void RegisterForLevel1PostSessionProcessing(ObjectItemAssemblyLoader loader) { _loadersThatNeedLevel1PostSessionProcessing.Add(loader); } internal void RegisterForLevel2PostSessionProcessing(ObjectItemAssemblyLoader loader) { _loadersThatNeedLevel2PostSessionProcessing.Add(loader); } internal void CompleteSession() { foreach (ObjectItemAssemblyLoader loader in _loadersThatNeedLevel1PostSessionProcessing) { loader.OnLevel1SessionProcessing(); } foreach (ObjectItemAssemblyLoader loader in _loadersThatNeedLevel2PostSessionProcessing) { loader.OnLevel2SessionProcessing(); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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