Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / Serialization / System / Runtime / Serialization / XmlObjectSerializerContext.cs / 1305376 / XmlObjectSerializerContext.cs
//------------------------------------------------------------ // Copyright (c) Microsoft Corporation. All rights reserved. //----------------------------------------------------------- namespace System.Runtime.Serialization { using System; using System.Collections.Generic; using System.Reflection; using System.Security; using System.Xml; using DataContractDictionary = System.Collections.Generic.Dictionary; #if USE_REFEMIT public class XmlObjectSerializerContext #else internal class XmlObjectSerializerContext #endif { protected XmlObjectSerializer serializer; protected DataContract rootTypeDataContract; internal ScopedKnownTypes scopedKnownTypes = new ScopedKnownTypes(); protected DataContractDictionary serializerKnownDataContracts; bool isSerializerKnownDataContractsSetExplicit; protected IList serializerKnownTypeList; [Fx.Tag.SecurityNote(Critical = "We base the decision whether to Demand SerializationFormatterPermission on this value.")] [SecurityCritical] bool demandedSerializationFormatterPermission; [Fx.Tag.SecurityNote(Critical = "We base the decision whether to Demand MemberAccess on this value.")] [SecurityCritical] bool demandedMemberAccessPermission; int itemCount; int maxItemsInObjectGraph; StreamingContext streamingContext; bool ignoreExtensionDataObject; DataContractResolver dataContractResolver; KnownTypeDataContractResolver knownTypeResolver; internal XmlObjectSerializerContext(XmlObjectSerializer serializer, int maxItemsInObjectGraph, StreamingContext streamingContext, bool ignoreExtensionDataObject, DataContractResolver dataContractResolver) { this.serializer = serializer; this.itemCount = 1; this.maxItemsInObjectGraph = maxItemsInObjectGraph; this.streamingContext = streamingContext; this.ignoreExtensionDataObject = ignoreExtensionDataObject; this.dataContractResolver = dataContractResolver; } internal XmlObjectSerializerContext(XmlObjectSerializer serializer, int maxItemsInObjectGraph, StreamingContext streamingContext, bool ignoreExtensionDataObject) : this(serializer, maxItemsInObjectGraph, streamingContext, ignoreExtensionDataObject, null) { } internal XmlObjectSerializerContext(DataContractSerializer serializer, DataContract rootTypeDataContract, DataContractResolver dataContractResolver) : this(serializer, serializer.MaxItemsInObjectGraph, new StreamingContext(StreamingContextStates.All), serializer.IgnoreExtensionDataObject, dataContractResolver) { this.rootTypeDataContract = rootTypeDataContract; this.serializerKnownTypeList = serializer.knownTypeList; } internal XmlObjectSerializerContext(NetDataContractSerializer serializer) : this(serializer, serializer.MaxItemsInObjectGraph, serializer.Context, serializer.IgnoreExtensionDataObject) { } internal virtual SerializationMode Mode { get { return SerializationMode.SharedContract; } } internal virtual bool IsGetOnlyCollection { get { return false; } set { } } [Fx.Tag.SecurityNote(Critical = "Demands SerializationFormatter permission. demanding the right permission is critical.", Safe = "No data or control leaks in or out, must be callable from transparent generated IL.")] [SecuritySafeCritical] public void DemandSerializationFormatterPermission() { if (!demandedSerializationFormatterPermission) { Globals.SerializationFormatterPermission.Demand(); demandedSerializationFormatterPermission = true; } } [Fx.Tag.SecurityNote(Critical = "Demands MemberAccess permission. demanding the right permission is critical.", Safe = "No data or control leaks in or out, must be callable from transparent generated IL.")] [SecuritySafeCritical] public void DemandMemberAccessPermission() { if (!demandedMemberAccessPermission) { Globals.MemberAccessPermission.Demand(); demandedMemberAccessPermission = true; } } public StreamingContext GetStreamingContext() { return streamingContext; } static MethodInfo incrementItemCountMethod; internal static MethodInfo IncrementItemCountMethod { get { if (incrementItemCountMethod == null) incrementItemCountMethod = typeof(XmlObjectSerializerContext).GetMethod("IncrementItemCount", Globals.ScanAllMembers); return incrementItemCountMethod; } } public void IncrementItemCount(int count) { if (count > maxItemsInObjectGraph - itemCount) throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlObjectSerializer.CreateSerializationException(SR.GetString(SR.ExceededMaxItemsQuota, maxItemsInObjectGraph))); itemCount += count; } internal int RemainingItemCount { get { return maxItemsInObjectGraph - itemCount; } } internal bool IgnoreExtensionDataObject { get { return ignoreExtensionDataObject; } } protected DataContractResolver DataContractResolver { get { return dataContractResolver; } } protected KnownTypeDataContractResolver KnownTypeResolver { get { if (knownTypeResolver == null) { knownTypeResolver = new KnownTypeDataContractResolver(this); } return knownTypeResolver; } } internal DataContract GetDataContract(Type type) { return GetDataContract(type.TypeHandle, type); } internal virtual DataContract GetDataContract(RuntimeTypeHandle typeHandle, Type type) { if (IsGetOnlyCollection) { return DataContract.GetGetOnlyCollectionDataContract(DataContract.GetId(typeHandle), typeHandle, type, Mode); } else { return DataContract.GetDataContract(typeHandle, type, Mode); } } internal virtual DataContract GetDataContractSkipValidation(int typeId, RuntimeTypeHandle typeHandle, Type type) { if (IsGetOnlyCollection) { return DataContract.GetGetOnlyCollectionDataContractSkipValidation(typeId, typeHandle, type); } else { return DataContract.GetDataContractSkipValidation(typeId, typeHandle, type); } } internal virtual DataContract GetDataContract(int id, RuntimeTypeHandle typeHandle) { if (IsGetOnlyCollection) { return DataContract.GetGetOnlyCollectionDataContract(id, typeHandle, null /*type*/, Mode); } else { return DataContract.GetDataContract(id, typeHandle, Mode); } } internal virtual void CheckIfTypeSerializable(Type memberType, bool isMemberTypeSerializable) { if (!isMemberTypeSerializable) throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidDataContractException(SR.GetString(SR.TypeNotSerializable, memberType))); } internal virtual Type GetSurrogatedType(Type type) { return type; } DataContractDictionary SerializerKnownDataContracts { get { // This field must be initialized during construction by serializers using data contracts. if (!this.isSerializerKnownDataContractsSetExplicit) { this.serializerKnownDataContracts = serializer.KnownDataContracts; this.isSerializerKnownDataContractsSetExplicit = true; } return this.serializerKnownDataContracts; } } DataContract GetDataContractFromSerializerKnownTypes(XmlQualifiedName qname) { DataContractDictionary serializerKnownDataContracts = this.SerializerKnownDataContracts; if (serializerKnownDataContracts == null) return null; DataContract outDataContract; return serializerKnownDataContracts.TryGetValue(qname, out outDataContract) ? outDataContract : null; } internal static DataContractDictionary GetDataContractsForKnownTypes(IList knownTypeList) { if (knownTypeList == null) return null; DataContractDictionary dataContracts = new DataContractDictionary(); Dictionary typesChecked = new Dictionary (); for (int i = 0; i < knownTypeList.Count; i++) { Type knownType = knownTypeList[i]; if (knownType == null) throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentException(SR.GetString(SR.NullKnownType, "knownTypes"))); DataContract.CheckAndAdd(knownType, typesChecked, ref dataContracts); } return dataContracts; } internal bool IsKnownType(DataContract dataContract, DataContractDictionary knownDataContracts, Type declaredType) { bool knownTypesAddedInCurrentScope = false; if (knownDataContracts != null) { scopedKnownTypes.Push(knownDataContracts); knownTypesAddedInCurrentScope = true; } bool isKnownType = IsKnownType(dataContract, declaredType); if (knownTypesAddedInCurrentScope) { scopedKnownTypes.Pop(); } return isKnownType; } internal bool IsKnownType(DataContract dataContract, Type declaredType) { DataContract knownContract = ResolveDataContractFromKnownTypes(dataContract.StableName.Name, dataContract.StableName.Namespace, null /*memberTypeContract*/, declaredType); return knownContract != null && knownContract.UnderlyingType == dataContract.UnderlyingType; } DataContract ResolveDataContractFromKnownTypes(XmlQualifiedName typeName) { DataContract dataContract = PrimitiveDataContract.GetPrimitiveDataContract(typeName.Name, typeName.Namespace); if (dataContract == null) { if (typeName.Name == Globals.SafeSerializationManagerName && typeName.Namespace == Globals.SafeSerializationManagerNamespace && Globals.TypeOfSafeSerializationManager != null) { return GetDataContract(Globals.TypeOfSafeSerializationManager); } dataContract = scopedKnownTypes.GetDataContract(typeName); if (dataContract == null) { dataContract = GetDataContractFromSerializerKnownTypes(typeName); } } return dataContract; } DataContract ResolveDataContractFromDataContractResolver(XmlQualifiedName typeName, Type declaredType) { Type dataContractType = DataContractResolver.ResolveName(typeName.Name, typeName.Namespace, declaredType, KnownTypeResolver); if (dataContractType == null) { return null; } else { return GetDataContract(dataContractType); } } internal Type ResolveNameFromKnownTypes(XmlQualifiedName typeName) { DataContract dataContract = ResolveDataContractFromKnownTypes(typeName); if (dataContract == null) { return null; } else { return dataContract.OriginalUnderlyingType; } } protected DataContract ResolveDataContractFromKnownTypes(string typeName, string typeNs, DataContract memberTypeContract, Type declaredType) { XmlQualifiedName qname = new XmlQualifiedName(typeName, typeNs); DataContract dataContract; if (DataContractResolver == null) { dataContract = ResolveDataContractFromKnownTypes(qname); } else { dataContract = ResolveDataContractFromDataContractResolver(qname, declaredType); } if (dataContract == null) { if (memberTypeContract != null && !memberTypeContract.UnderlyingType.IsInterface && memberTypeContract.StableName == qname) { dataContract = memberTypeContract; } if (dataContract == null && rootTypeDataContract != null) { if (rootTypeDataContract.StableName == qname) dataContract = rootTypeDataContract; else { CollectionDataContract collectionContract = rootTypeDataContract as CollectionDataContract; while (collectionContract != null) { DataContract itemContract = GetDataContract(GetSurrogatedType(collectionContract.ItemType)); if (itemContract.StableName == qname) { dataContract = itemContract; break; } collectionContract = itemContract as CollectionDataContract; } } } } return dataContract; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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