Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Net / System / Net / Cache / RequestCacheManager.cs / 1 / RequestCacheManager.cs
/*++ Copyright (c) Microsoft Corporation Module Name: RequestCacheManager.cs Abstract: The class implements the app domain wide configuration for request cache aware clients Author: Alexei Vopilov 21-Dec-2002 Revision History: Jan 25 2004 - Changed the visibility of the class from public to internal, compressed unused logic. --*/ namespace System.Net.Cache { using System; using System.Collections; using System.Net.Configuration; using System.Configuration; ///Specifies app domain-wide default settings for request caching internal sealed class RequestCacheManager { private RequestCacheManager() {} private static RequestCachingSectionInternal s_CacheConfigSettings; private static readonly RequestCacheBinding s_BypassCacheBinding = new RequestCacheBinding (null, null, new RequestCachePolicy(RequestCacheLevel.BypassCache)); private static RequestCacheBinding s_DefaultGlobalBinding; private static RequestCacheBinding s_DefaultHttpBinding; private static RequestCacheBinding s_DefaultFtpBinding; // // ATN: the caller MUST use uri.Scheme as a parameter, otheriwse cannot do schme ref comparision // internal static RequestCacheBinding GetBinding(string internedScheme) { if (internedScheme == null) throw new ArgumentNullException("uriScheme"); if (s_CacheConfigSettings == null) LoadConfigSettings(); if(s_CacheConfigSettings.DisableAllCaching) return s_BypassCacheBinding; if (internedScheme.Length == 0) return s_DefaultGlobalBinding; if ((object)internedScheme == (object)Uri.UriSchemeHttp || (object)internedScheme == (object)Uri.UriSchemeHttps) return s_DefaultHttpBinding; if ((object)internedScheme == (object)Uri.UriSchemeFtp) return s_DefaultFtpBinding; return s_BypassCacheBinding; } internal static bool IsCachingEnabled { get { if (s_CacheConfigSettings == null) LoadConfigSettings(); return !s_CacheConfigSettings.DisableAllCaching; } } // internal static void SetBinding(string uriScheme, RequestCacheBinding binding) { if (uriScheme == null) throw new ArgumentNullException("uriScheme"); if (s_CacheConfigSettings == null) LoadConfigSettings(); if(s_CacheConfigSettings.DisableAllCaching) return; if (uriScheme.Length == 0) s_DefaultGlobalBinding = binding; else if (uriScheme == Uri.UriSchemeHttp || uriScheme == Uri.UriSchemeHttps) s_DefaultHttpBinding = binding; else if (uriScheme == Uri.UriSchemeFtp) s_DefaultFtpBinding = binding; } // private static void LoadConfigSettings() { // Any concurent access shall go here and block until we've grabbed the config settings lock (s_BypassCacheBinding) { if (s_CacheConfigSettings == null) { RequestCachingSectionInternal settings = RequestCachingSectionInternal.GetSection(); s_DefaultGlobalBinding = new RequestCacheBinding (settings.DefaultCache, settings.DefaultHttpValidator, settings.DefaultCachePolicy); s_DefaultHttpBinding = new RequestCacheBinding (settings.DefaultCache, settings.DefaultHttpValidator, settings.DefaultHttpCachePolicy); s_DefaultFtpBinding = new RequestCacheBinding (settings.DefaultCache, settings.DefaultFtpValidator, settings.DefaultFtpCachePolicy); s_CacheConfigSettings = settings; } } } } // // internal class RequestCacheBinding { private RequestCache m_RequestCache; private RequestCacheValidator m_CacheValidator; private RequestCachePolicy m_Policy; internal RequestCacheBinding (RequestCache requestCache, RequestCacheValidator cacheValidator, RequestCachePolicy policy) { m_RequestCache = requestCache; m_CacheValidator = cacheValidator; m_Policy = policy; } internal RequestCache Cache { get {return m_RequestCache;} } internal RequestCacheValidator Validator { get {return m_CacheValidator;} } internal RequestCachePolicy Policy { get {return m_Policy;} } } }
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ScrollChangedEventArgs.cs
- SocketPermission.cs
- BevelBitmapEffect.cs
- AttachmentService.cs
- File.cs
- ACE.cs
- WebPartDescriptionCollection.cs
- HandleCollector.cs
- PropertyInfo.cs
- DateTimeConverter2.cs
- ReceiveActivityDesignerTheme.cs
- BlockUIContainer.cs
- XmlSchemaAttributeGroupRef.cs
- WebServiceEnumData.cs
- XhtmlBasicPanelAdapter.cs
- ToolStripContextMenu.cs
- GridLength.cs
- ThrowHelper.cs
- AppDomainProtocolHandler.cs
- LocatorPartList.cs
- EditingMode.cs
- ViewBase.cs
- PointAnimationUsingKeyFrames.cs
- DependencyObjectPropertyDescriptor.cs
- DataGridViewRowsAddedEventArgs.cs
- DependencyObjectProvider.cs
- GraphicsState.cs
- xmlfixedPageInfo.cs
- TrustLevelCollection.cs
- LocalFileSettingsProvider.cs
- PeerNameRecordCollection.cs
- CookieHandler.cs
- TextBox.cs
- TitleStyle.cs
- RegisteredScript.cs
- DiscoveryClientElement.cs
- ListBindableAttribute.cs
- DesignerCalendarAdapter.cs
- CursorEditor.cs
- ListViewItem.cs
- HWStack.cs
- ColumnHeaderCollectionEditor.cs
- XmlSerializationWriter.cs
- BindingCompleteEventArgs.cs
- SettingsPropertyWrongTypeException.cs
- SwitchElementsCollection.cs
- OdbcPermission.cs
- FaultPropagationQuery.cs
- SafeRightsManagementQueryHandle.cs
- PrintingPermission.cs
- CacheEntry.cs
- DateTimeSerializationSection.cs
- Sequence.cs
- XmlReflectionImporter.cs
- CalloutQueueItem.cs
- DataGridViewUtilities.cs
- QueryableFilterUserControl.cs
- MethodBuilder.cs
- SpecularMaterial.cs
- DataBoundLiteralControl.cs
- controlskin.cs
- UMPAttributes.cs
- BoolExpressionVisitors.cs
- RedistVersionInfo.cs
- ClientSession.cs
- TransformerInfoCollection.cs
- HtmlFormParameterReader.cs
- MetafileHeader.cs
- HtmlTitle.cs
- FormatVersion.cs
- ByteStreamMessage.cs
- SqlDelegatedTransaction.cs
- Timeline.cs
- QualificationDataAttribute.cs
- DataServiceClientException.cs
- PositiveTimeSpanValidatorAttribute.cs
- EdmTypeAttribute.cs
- KeyboardDevice.cs
- InfoCardKeyedHashAlgorithm.cs
- UIntPtr.cs
- QuestionEventArgs.cs
- ActionFrame.cs
- CellLabel.cs
- WindowsEditBox.cs
- ResourceSet.cs
- XsdCachingReader.cs
- IEnumerable.cs
- WorkflowIdleElement.cs
- RuleSetBrowserDialog.cs
- sqlser.cs
- NextPreviousPagerField.cs
- MsmqInputSessionChannel.cs
- localization.cs
- FlowDocumentScrollViewer.cs
- ContractCodeDomInfo.cs
- AppSettingsReader.cs
- ReadingWritingEntityEventArgs.cs
- ToolStripButton.cs
- SqlRowUpdatingEvent.cs
- DateTimeOffset.cs