Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / clr / src / BCL / System / Runtime / Serialization / SerializationEventsCache.cs / 1 / SerializationEventsCache.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== /*============================================================ ** ** Class: SerializationEventsCache ** ** ** Purpose: Caches the various serialization events such as On(De)Seriliz(ed)ing ** ** ============================================================*/ namespace System.Runtime.Serialization { using System; using System.Collections; using System.Collections.Generic; using System.Reflection; using System.Reflection.Cache; using System.Globalization; internal class SerializationEvents { private Listm_OnSerializingMethods = null; private List m_OnSerializedMethods = null; private List m_OnDeserializingMethods = null; private List m_OnDeserializedMethods = null; private List GetMethodsWithAttribute(Type attribute, Type t) { List mi = new List (); Type baseType = t; // Traverse the hierarchy to find all methods with the particular attribute while (baseType != null && baseType != typeof(Object)) { RuntimeType rt = (RuntimeType)baseType; // Get all methods which are declared on this type, instance and public or nonpublic MethodInfo[] mis = baseType.GetMethods(BindingFlags.DeclaredOnly | BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public); #if _DEBUG bool found = false; #endif foreach(MethodInfo m in mis) { // For each method find if attribute is present, the return type is void and the method is not virtual if (m.IsDefined(attribute, false)) { #if _DEBUG BCLDebug.Assert(m.ReturnType == typeof(void) && !m.IsVirtual, "serialization events methods cannot be virtual and need to have void return"); ParameterInfo[] paramInfo = m.GetParameters(); // Only add it if this method has one parameter of type StreamingContext if (paramInfo.Length == 1 && paramInfo[0].ParameterType == typeof(StreamingContext)) { if (found) BCLDebug.Assert(false, "Mutliple methods with same serialization attribute"); #endif mi.Add(m); #if _DEBUG found = true; } else BCLDebug.Assert(false, "Incorrect serialization event signature"); #endif } } #if _DEBUG found = false; #endif baseType = baseType.BaseType; } mi.Reverse(); // We should invoke the methods starting from base return (mi.Count == 0) ? null : mi; } internal SerializationEvents(Type t) { // Initialize all events m_OnSerializingMethods = GetMethodsWithAttribute(typeof(OnSerializingAttribute), t); m_OnSerializedMethods = GetMethodsWithAttribute(typeof(OnSerializedAttribute), t); m_OnDeserializingMethods = GetMethodsWithAttribute(typeof(OnDeserializingAttribute), t); m_OnDeserializedMethods = GetMethodsWithAttribute(typeof(OnDeserializedAttribute), t); } internal bool HasOnSerializingEvents { get { return m_OnSerializingMethods != null || m_OnSerializedMethods != null; } } internal void InvokeOnSerializing(Object obj, StreamingContext context) { BCLDebug.Assert(obj != null, "object should have been initialized"); // Invoke all OnSerializingMethods if (m_OnSerializingMethods != null) { Object[] p = new Object[] {context}; SerializationEventHandler handler = null; foreach(MethodInfo m in m_OnSerializingMethods) { SerializationEventHandler onSerializing = (SerializationEventHandler)Delegate.InternalCreateDelegate(typeof(SerializationEventHandler), obj, m); handler = (SerializationEventHandler)Delegate.Combine(handler, onSerializing); } handler(context); } } internal void InvokeOnDeserializing(Object obj, StreamingContext context) { BCLDebug.Assert(obj != null, "object should have been initialized"); // Invoke all OnDeserializingMethods if (m_OnDeserializingMethods != null) { Object[] p = new Object[] {context}; SerializationEventHandler handler = null; foreach(MethodInfo m in m_OnDeserializingMethods) { SerializationEventHandler onDeserializing = (SerializationEventHandler)Delegate.InternalCreateDelegate(typeof(SerializationEventHandler), obj, m); handler = (SerializationEventHandler)Delegate.Combine(handler, onDeserializing); } handler(context); } } internal void InvokeOnDeserialized(Object obj, StreamingContext context) { BCLDebug.Assert(obj != null, "object should have been initialized"); // Invoke all OnDeserializingMethods if (m_OnDeserializedMethods != null) { Object[] p = new Object[] {context}; SerializationEventHandler handler = null; foreach(MethodInfo m in m_OnDeserializedMethods) { SerializationEventHandler onDeserialized = (SerializationEventHandler)Delegate.InternalCreateDelegate(typeof(SerializationEventHandler), obj, m); handler = (SerializationEventHandler)Delegate.Combine(handler, onDeserialized); } handler(context); } } internal SerializationEventHandler AddOnSerialized(Object obj, SerializationEventHandler handler) { // Add all OnSerialized methods to a delegate if (m_OnSerializedMethods != null) { foreach(MethodInfo m in m_OnSerializedMethods) { SerializationEventHandler onSerialized = (SerializationEventHandler)Delegate.InternalCreateDelegate(typeof(SerializationEventHandler), obj, m); handler = (SerializationEventHandler)Delegate.Combine(handler, onSerialized); } } return handler; } internal SerializationEventHandler AddOnDeserialized(Object obj, SerializationEventHandler handler) { // Add all OnDeserialized methods to a delegate if (m_OnDeserializedMethods != null) { foreach(MethodInfo m in m_OnDeserializedMethods) { SerializationEventHandler onDeserialized = (SerializationEventHandler)Delegate.InternalCreateDelegate(typeof(SerializationEventHandler), obj, m); handler = (SerializationEventHandler)Delegate.Combine(handler, onDeserialized); } } return handler; } } internal static class SerializationEventsCache { private static Hashtable cache = new Hashtable(); internal static SerializationEvents GetSerializationEventsForType(Type t) { SerializationEvents events; if ((events = (SerializationEvents)cache[t]) == null) { events = new SerializationEvents(t); cache[t] = events; // Add this to the cache. } return events; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== /*============================================================ ** ** Class: SerializationEventsCache ** ** ** Purpose: Caches the various serialization events such as On(De)Seriliz(ed)ing ** ** ============================================================*/ namespace System.Runtime.Serialization { using System; using System.Collections; using System.Collections.Generic; using System.Reflection; using System.Reflection.Cache; using System.Globalization; internal class SerializationEvents { private List m_OnSerializingMethods = null; private List m_OnSerializedMethods = null; private List m_OnDeserializingMethods = null; private List m_OnDeserializedMethods = null; private List GetMethodsWithAttribute(Type attribute, Type t) { List mi = new List (); Type baseType = t; // Traverse the hierarchy to find all methods with the particular attribute while (baseType != null && baseType != typeof(Object)) { RuntimeType rt = (RuntimeType)baseType; // Get all methods which are declared on this type, instance and public or nonpublic MethodInfo[] mis = baseType.GetMethods(BindingFlags.DeclaredOnly | BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public); #if _DEBUG bool found = false; #endif foreach(MethodInfo m in mis) { // For each method find if attribute is present, the return type is void and the method is not virtual if (m.IsDefined(attribute, false)) { #if _DEBUG BCLDebug.Assert(m.ReturnType == typeof(void) && !m.IsVirtual, "serialization events methods cannot be virtual and need to have void return"); ParameterInfo[] paramInfo = m.GetParameters(); // Only add it if this method has one parameter of type StreamingContext if (paramInfo.Length == 1 && paramInfo[0].ParameterType == typeof(StreamingContext)) { if (found) BCLDebug.Assert(false, "Mutliple methods with same serialization attribute"); #endif mi.Add(m); #if _DEBUG found = true; } else BCLDebug.Assert(false, "Incorrect serialization event signature"); #endif } } #if _DEBUG found = false; #endif baseType = baseType.BaseType; } mi.Reverse(); // We should invoke the methods starting from base return (mi.Count == 0) ? null : mi; } internal SerializationEvents(Type t) { // Initialize all events m_OnSerializingMethods = GetMethodsWithAttribute(typeof(OnSerializingAttribute), t); m_OnSerializedMethods = GetMethodsWithAttribute(typeof(OnSerializedAttribute), t); m_OnDeserializingMethods = GetMethodsWithAttribute(typeof(OnDeserializingAttribute), t); m_OnDeserializedMethods = GetMethodsWithAttribute(typeof(OnDeserializedAttribute), t); } internal bool HasOnSerializingEvents { get { return m_OnSerializingMethods != null || m_OnSerializedMethods != null; } } internal void InvokeOnSerializing(Object obj, StreamingContext context) { BCLDebug.Assert(obj != null, "object should have been initialized"); // Invoke all OnSerializingMethods if (m_OnSerializingMethods != null) { Object[] p = new Object[] {context}; SerializationEventHandler handler = null; foreach(MethodInfo m in m_OnSerializingMethods) { SerializationEventHandler onSerializing = (SerializationEventHandler)Delegate.InternalCreateDelegate(typeof(SerializationEventHandler), obj, m); handler = (SerializationEventHandler)Delegate.Combine(handler, onSerializing); } handler(context); } } internal void InvokeOnDeserializing(Object obj, StreamingContext context) { BCLDebug.Assert(obj != null, "object should have been initialized"); // Invoke all OnDeserializingMethods if (m_OnDeserializingMethods != null) { Object[] p = new Object[] {context}; SerializationEventHandler handler = null; foreach(MethodInfo m in m_OnDeserializingMethods) { SerializationEventHandler onDeserializing = (SerializationEventHandler)Delegate.InternalCreateDelegate(typeof(SerializationEventHandler), obj, m); handler = (SerializationEventHandler)Delegate.Combine(handler, onDeserializing); } handler(context); } } internal void InvokeOnDeserialized(Object obj, StreamingContext context) { BCLDebug.Assert(obj != null, "object should have been initialized"); // Invoke all OnDeserializingMethods if (m_OnDeserializedMethods != null) { Object[] p = new Object[] {context}; SerializationEventHandler handler = null; foreach(MethodInfo m in m_OnDeserializedMethods) { SerializationEventHandler onDeserialized = (SerializationEventHandler)Delegate.InternalCreateDelegate(typeof(SerializationEventHandler), obj, m); handler = (SerializationEventHandler)Delegate.Combine(handler, onDeserialized); } handler(context); } } internal SerializationEventHandler AddOnSerialized(Object obj, SerializationEventHandler handler) { // Add all OnSerialized methods to a delegate if (m_OnSerializedMethods != null) { foreach(MethodInfo m in m_OnSerializedMethods) { SerializationEventHandler onSerialized = (SerializationEventHandler)Delegate.InternalCreateDelegate(typeof(SerializationEventHandler), obj, m); handler = (SerializationEventHandler)Delegate.Combine(handler, onSerialized); } } return handler; } internal SerializationEventHandler AddOnDeserialized(Object obj, SerializationEventHandler handler) { // Add all OnDeserialized methods to a delegate if (m_OnDeserializedMethods != null) { foreach(MethodInfo m in m_OnDeserializedMethods) { SerializationEventHandler onDeserialized = (SerializationEventHandler)Delegate.InternalCreateDelegate(typeof(SerializationEventHandler), obj, m); handler = (SerializationEventHandler)Delegate.Combine(handler, onDeserialized); } } return handler; } } internal static class SerializationEventsCache { private static Hashtable cache = new Hashtable(); internal static SerializationEvents GetSerializationEventsForType(Type t) { SerializationEvents events; if ((events = (SerializationEvents)cache[t]) == null) { events = new SerializationEvents(t); cache[t] = events; // Add this to the cache. } return events; } } } // 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
- SvcMapFile.cs
- NotifyInputEventArgs.cs
- Debug.cs
- CalendarTable.cs
- TransactionState.cs
- DocumentXmlWriter.cs
- SoapInteropTypes.cs
- WrapperSecurityCommunicationObject.cs
- ListParagraph.cs
- RepeaterItemCollection.cs
- FormatException.cs
- WeakEventManager.cs
- Bold.cs
- ExistsInCollection.cs
- ToolBarButton.cs
- CallContext.cs
- ChangeBlockUndoRecord.cs
- ConnectionStringEditor.cs
- MemoryFailPoint.cs
- SingleBodyParameterMessageFormatter.cs
- ReachFixedDocumentSerializerAsync.cs
- NodeLabelEditEvent.cs
- ControlBuilderAttribute.cs
- IPAddress.cs
- PolyQuadraticBezierSegment.cs
- DrawListViewItemEventArgs.cs
- DbgCompiler.cs
- DesignerRegionCollection.cs
- Geometry3D.cs
- CommandBinding.cs
- TabControlCancelEvent.cs
- ClaimComparer.cs
- LinqDataSourceDeleteEventArgs.cs
- BufferModeSettings.cs
- NullReferenceException.cs
- GCHandleCookieTable.cs
- WebPartMovingEventArgs.cs
- NetPeerTcpBinding.cs
- SecurityNegotiationException.cs
- PanelStyle.cs
- Regex.cs
- InputScopeNameConverter.cs
- InheritedPropertyChangedEventArgs.cs
- WebPartConnectionsCancelVerb.cs
- Profiler.cs
- ContextMenu.cs
- EventWaitHandleSecurity.cs
- TextServicesPropertyRanges.cs
- UInt16Converter.cs
- EntityException.cs
- RangeValuePatternIdentifiers.cs
- HtmlImage.cs
- Compress.cs
- BitmapEffectInputConnector.cs
- NamespaceCollection.cs
- DecimalStorage.cs
- GeometryModel3D.cs
- WebAdminConfigurationHelper.cs
- WorkflowHostingResponseContext.cs
- SQLMembershipProvider.cs
- MimeFormatter.cs
- _LocalDataStore.cs
- CryptoKeySecurity.cs
- ScriptingRoleServiceSection.cs
- VectorValueSerializer.cs
- AccessDataSourceView.cs
- PrintPreviewGraphics.cs
- EventHandlersDesigner.cs
- DataGridViewRowEventArgs.cs
- ConstNode.cs
- AppDomainManager.cs
- MergeLocalizationDirectives.cs
- ListViewInsertEventArgs.cs
- PrintDocument.cs
- DataSetMappper.cs
- ContextStaticAttribute.cs
- MetafileHeaderEmf.cs
- PolyLineSegmentFigureLogic.cs
- QuotedPrintableStream.cs
- Grammar.cs
- ObjectQuery_EntitySqlExtensions.cs
- CaseInsensitiveOrdinalStringComparer.cs
- AnonymousIdentificationModule.cs
- FixedSOMTextRun.cs
- followingsibling.cs
- ClientCultureInfo.cs
- Tokenizer.cs
- CatalogPartDesigner.cs
- XpsDocumentEvent.cs
- DetailsViewDeleteEventArgs.cs
- StatusBarAutomationPeer.cs
- PnrpPeerResolverBindingElement.cs
- SecurityPolicySection.cs
- Utils.cs
- JavaScriptString.cs
- Compensation.cs
- XmlReaderSettings.cs
- XmlElementCollection.cs
- SoapEnumAttribute.cs
- AnimatedTypeHelpers.cs