Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / Serialization / System / Runtime / Serialization / Json / JsonCollectionDataContract.cs / 1305376 / JsonCollectionDataContract.cs
//---------------------------------------------------------------- // Copyright (c) Microsoft Corporation. All rights reserved. //--------------------------------------------------------------- namespace System.Runtime.Serialization.Json { using System.Threading; using System.Xml; using System.Security; class JsonCollectionDataContract : JsonDataContract { [Fx.Tag.SecurityNote(Critical = "Holds instance of CriticalHelper which keeps state that is cached statically for serialization." + "Static fields are marked SecurityCritical or readonly to prevent data from being modified or leaked to other components in appdomain.")] [SecurityCritical] JsonCollectionDataContractCriticalHelper helper; [Fx.Tag.SecurityNote(Critical = "Initializes SecurityCritical field 'helper'.", Safe = "Doesn't leak anything.")] [SecuritySafeCritical] public JsonCollectionDataContract(CollectionDataContract traditionalDataContract) : base(new JsonCollectionDataContractCriticalHelper(traditionalDataContract)) { this.helper = base.Helper as JsonCollectionDataContractCriticalHelper; } internal JsonFormatCollectionReaderDelegate JsonFormatReaderDelegate { [Fx.Tag.SecurityNote(Critical = "Fetches the critical JsonFormatReaderDelegate property.", Safe = "JsonFormatReaderDelegate only needs to be protected for write.")] [SecuritySafeCritical] get { if (helper.JsonFormatReaderDelegate == null) { lock (this) { if (helper.JsonFormatReaderDelegate == null) { JsonFormatCollectionReaderDelegate tempDelegate = new JsonFormatReaderGenerator().GenerateCollectionReader(TraditionalCollectionDataContract); Thread.MemoryBarrier(); helper.JsonFormatReaderDelegate = tempDelegate; } } } return helper.JsonFormatReaderDelegate; } } internal JsonFormatGetOnlyCollectionReaderDelegate JsonFormatGetOnlyReaderDelegate { [Fx.Tag.SecurityNote(Critical = "Fetches the critical JsonFormatGetOnlyReaderDelegate property.", Safe = "JsonFormatGetOnlyReaderDelegate only needs to be protected for write; initialized in getter if null.")] [SecuritySafeCritical] get { if (helper.JsonFormatGetOnlyReaderDelegate == null) { lock (this) { if (helper.JsonFormatGetOnlyReaderDelegate == null) { JsonFormatGetOnlyCollectionReaderDelegate tempDelegate = new JsonFormatReaderGenerator().GenerateGetOnlyCollectionReader(TraditionalCollectionDataContract); Thread.MemoryBarrier(); helper.JsonFormatGetOnlyReaderDelegate = tempDelegate; } } } return helper.JsonFormatGetOnlyReaderDelegate; } } internal JsonFormatCollectionWriterDelegate JsonFormatWriterDelegate { [Fx.Tag.SecurityNote(Critical = "Fetches the critical JsonFormatWriterDelegate property.", Safe = "JsonFormatWriterDelegate only needs to be protected for write.")] [SecuritySafeCritical] get { if (helper.JsonFormatWriterDelegate == null) { lock (this) { if (helper.JsonFormatWriterDelegate == null) { JsonFormatCollectionWriterDelegate tempDelegate = new JsonFormatWriterGenerator().GenerateCollectionWriter(TraditionalCollectionDataContract); Thread.MemoryBarrier(); helper.JsonFormatWriterDelegate = tempDelegate; } } } return helper.JsonFormatWriterDelegate; } } CollectionDataContract TraditionalCollectionDataContract { [Fx.Tag.SecurityNote(Critical = "Fetches the critical TraditionalCollectionDataContract property.", Safe = "TraditionalCollectionDataContract only needs to be protected for write.")] [SecuritySafeCritical] get { return this.helper.TraditionalCollectionDataContract; } } public override object ReadJsonValueCore(XmlReaderDelegator jsonReader, XmlObjectSerializerReadContextComplexJson context) { jsonReader.Read(); object o = null; if (context.IsGetOnlyCollection) { // IsGetOnlyCollection value has already been used to create current collectiondatacontract, value can now be reset. context.IsGetOnlyCollection = false; JsonFormatGetOnlyReaderDelegate(jsonReader, context, XmlDictionaryString.Empty, JsonGlobals.itemDictionaryString, TraditionalCollectionDataContract); } else { o = JsonFormatReaderDelegate(jsonReader, context, XmlDictionaryString.Empty, JsonGlobals.itemDictionaryString, TraditionalCollectionDataContract); } jsonReader.ReadEndElement(); return o; } public override void WriteJsonValueCore(XmlWriterDelegator jsonWriter, object obj, XmlObjectSerializerWriteContextComplexJson context, RuntimeTypeHandle declaredTypeHandle) { // IsGetOnlyCollection value has already been used to create current collectiondatacontract, value can now be reset. context.IsGetOnlyCollection = false; JsonFormatWriterDelegate(jsonWriter, obj, context, TraditionalCollectionDataContract); } [Fx.Tag.SecurityNote(Critical = "Holds all state used for (de)serializing types." + "Since the data is cached statically, we lock down access to it.")] #pragma warning disable 618 // have not moved to the v4 security model yet [SecurityCritical(SecurityCriticalScope.Everything)] #pragma warning restore 618 class JsonCollectionDataContractCriticalHelper : JsonDataContractCriticalHelper { JsonFormatCollectionReaderDelegate jsonFormatReaderDelegate; JsonFormatGetOnlyCollectionReaderDelegate jsonFormatGetOnlyReaderDelegate; JsonFormatCollectionWriterDelegate jsonFormatWriterDelegate; CollectionDataContract traditionalCollectionDataContract; public JsonCollectionDataContractCriticalHelper(CollectionDataContract traditionalDataContract) : base(traditionalDataContract) { this.traditionalCollectionDataContract = traditionalDataContract; } internal JsonFormatCollectionReaderDelegate JsonFormatReaderDelegate { get { return this.jsonFormatReaderDelegate; } set { this.jsonFormatReaderDelegate = value; } } internal JsonFormatGetOnlyCollectionReaderDelegate JsonFormatGetOnlyReaderDelegate { get { return this.jsonFormatGetOnlyReaderDelegate; } set { this.jsonFormatGetOnlyReaderDelegate = value; } } internal JsonFormatCollectionWriterDelegate JsonFormatWriterDelegate { get { return this.jsonFormatWriterDelegate; } set { this.jsonFormatWriterDelegate = value; } } internal CollectionDataContract TraditionalCollectionDataContract { get { return this.traditionalCollectionDataContract; } } } } } // 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
- WeakEventManager.cs
- LookupBindingPropertiesAttribute.cs
- FtpWebRequest.cs
- ReadOnlyObservableCollection.cs
- DocumentPaginator.cs
- DataContractSerializerSection.cs
- SiteOfOriginContainer.cs
- OnOperation.cs
- FileCodeGroup.cs
- TypeDependencyAttribute.cs
- PartialTrustValidationBehavior.cs
- SmiContextFactory.cs
- BindingMemberInfo.cs
- PropertyCollection.cs
- ListView.cs
- PlanCompiler.cs
- RtfToXamlReader.cs
- BitmapSizeOptions.cs
- PageTheme.cs
- TranslateTransform.cs
- EventSinkActivityDesigner.cs
- Error.cs
- ListViewUpdatedEventArgs.cs
- PersonalizationEntry.cs
- ParserExtension.cs
- ButtonField.cs
- GPPOINTF.cs
- Int32Animation.cs
- ImpersonationContext.cs
- DecimalAnimationBase.cs
- ListBoxChrome.cs
- CodeArgumentReferenceExpression.cs
- MimeTypeAttribute.cs
- ColorMap.cs
- loginstatus.cs
- DataSourceCacheDurationConverter.cs
- LookupNode.cs
- ListCollectionView.cs
- MetadataCollection.cs
- PasswordBox.cs
- EntityConnectionStringBuilder.cs
- ContainerActivationHelper.cs
- ServicePointManagerElement.cs
- CopyOfAction.cs
- PermissionListSet.cs
- TimeoutException.cs
- WebPartCloseVerb.cs
- Propagator.JoinPropagator.cs
- AnimationLayer.cs
- KeyConverter.cs
- ResourceReader.cs
- BufferedWebEventProvider.cs
- Header.cs
- Transform3DCollection.cs
- CustomAssemblyResolver.cs
- EnvironmentPermission.cs
- DbCommandDefinition.cs
- DataTableMappingCollection.cs
- WebPartConnectVerb.cs
- SocketAddress.cs
- TextServicesContext.cs
- TrackingLocation.cs
- SqlBooleanizer.cs
- TraceSwitch.cs
- ToolStripContentPanel.cs
- ListBindableAttribute.cs
- String.cs
- ClientScriptManagerWrapper.cs
- SystemColors.cs
- XmlnsDefinitionAttribute.cs
- XmlQueryTypeFactory.cs
- WebMessageFormatHelper.cs
- SerializationObjectManager.cs
- Style.cs
- AdPostCacheSubstitution.cs
- NativeMethods.cs
- EventSource.cs
- BinaryNode.cs
- NavigateEvent.cs
- KeyValueConfigurationElement.cs
- HiddenField.cs
- PermissionToken.cs
- ClientSettingsSection.cs
- ResourceDescriptionAttribute.cs
- DesignUtil.cs
- DynamicValidatorEventArgs.cs
- SetUserPreferenceRequest.cs
- InternalCache.cs
- ClientProxyGenerator.cs
- PointLight.cs
- DataGridCommandEventArgs.cs
- TransformationRules.cs
- FileDetails.cs
- RequestBringIntoViewEventArgs.cs
- ConfigurationManagerInternal.cs
- InstancePersistenceCommandException.cs
- DataAccessor.cs
- CompositeDuplexElement.cs
- RegexRunnerFactory.cs
- ContextMenuStrip.cs