Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / Configuration / System / Configuration / updateconfighost.cs / 1 / updateconfighost.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Configuration { using System.Collections.Specialized; using System.Configuration.Internal; using System.IO; // // Configuration host that intercepts calls to filename functions // to support SaveAs to an alternate file stream. // internal class UpdateConfigHost : DelegatingConfigHost { private HybridDictionary _streams; // oldStreamname -> StreamUpdate internal UpdateConfigHost(IInternalConfigHost host) { // Delegate to the host provided. Host = host; } // Add a stream to the list of streams to intercept. // // Parameters: // alwaysIntercept - If true, then don't check whether the old stream and the new stream are the same. // SaveAs() will set this to true if oldStreamname is actually referring to a stream // on a remote machine. internal void AddStreamname(string oldStreamname, string newStreamname, bool alwaysIntercept) { // Debug.Assert(!String.IsNullOrEmpty(oldStreamname)); if (String.IsNullOrEmpty(oldStreamname)) { return; } if (!alwaysIntercept && StringUtil.EqualsIgnoreCase(oldStreamname, newStreamname)) { return; } if (_streams == null) { _streams = new HybridDictionary(true); } _streams[oldStreamname] = new StreamUpdate(newStreamname); } // Get the new stream name for a stream if a new name exists, otherwise // return the original stream name. internal string GetNewStreamname(string oldStreamname) { StreamUpdate streamUpdate = GetStreamUpdate(oldStreamname, false); if (streamUpdate != null) { return streamUpdate.NewStreamname; } return oldStreamname; } // // Get the StreamUpdate for a stream. // If alwaysIntercept is true, then the StreamUpdate is // always returned if it exists. // If alwaysIntercept is false, then only return the StreamUpdate // if the new stream has been successfully written to. // private StreamUpdate GetStreamUpdate(string oldStreamname, bool alwaysIntercept) { if (_streams == null) return null; StreamUpdate streamUpdate = (StreamUpdate) _streams[oldStreamname]; if (streamUpdate != null && !alwaysIntercept && !streamUpdate.WriteCompleted) { streamUpdate = null; } return streamUpdate; } public override object GetStreamVersion(string streamName) { StreamUpdate streamUpdate = GetStreamUpdate(streamName, false); if (streamUpdate != null) { return InternalConfigHost.StaticGetStreamVersion(streamUpdate.NewStreamname); } else { return Host.GetStreamVersion(streamName); } } public override Stream OpenStreamForRead(string streamName) { StreamUpdate streamUpdate = GetStreamUpdate(streamName, false); if (streamUpdate != null) { return InternalConfigHost.StaticOpenStreamForRead(streamUpdate.NewStreamname); } else { return Host.OpenStreamForRead(streamName); } } public override Stream OpenStreamForWrite(string streamName, string templateStreamName, ref object writeContext) { // Always attempt to write to the new stream name if it exists. StreamUpdate streamUpdate = GetStreamUpdate(streamName, true); if (streamUpdate != null) { return InternalConfigHost.StaticOpenStreamForWrite(streamUpdate.NewStreamname, templateStreamName, ref writeContext, false); } else { return Host.OpenStreamForWrite(streamName, templateStreamName, ref writeContext); } } public override void WriteCompleted(string streamName, bool success, object writeContext) { StreamUpdate streamUpdate = GetStreamUpdate(streamName, true); if (streamUpdate != null) { InternalConfigHost.StaticWriteCompleted(streamUpdate.NewStreamname, success, writeContext, false); // // Mark the write as having successfully completed, so that subsequent calls // to Read() will use the new stream name. // if (success) { streamUpdate.WriteCompleted = true; } } else { Host.WriteCompleted(streamName, success, writeContext); } } public override bool IsConfigRecordRequired(string configPath) { return true; } public override void DeleteStream(string streamName) { StreamUpdate streamUpdate = GetStreamUpdate(streamName, false); if (streamUpdate != null) { InternalConfigHost.StaticDeleteStream(streamUpdate.NewStreamname); } else { Host.DeleteStream(streamName); } } public override bool IsFile(string streamName) { StreamUpdate streamUpdate = GetStreamUpdate(streamName, false); if (streamUpdate != null) { return InternalConfigHost.StaticIsFile(streamUpdate.NewStreamname); } else { return Host.IsFile(streamName); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Configuration { using System.Collections.Specialized; using System.Configuration.Internal; using System.IO; // // Configuration host that intercepts calls to filename functions // to support SaveAs to an alternate file stream. // internal class UpdateConfigHost : DelegatingConfigHost { private HybridDictionary _streams; // oldStreamname -> StreamUpdate internal UpdateConfigHost(IInternalConfigHost host) { // Delegate to the host provided. Host = host; } // Add a stream to the list of streams to intercept. // // Parameters: // alwaysIntercept - If true, then don't check whether the old stream and the new stream are the same. // SaveAs() will set this to true if oldStreamname is actually referring to a stream // on a remote machine. internal void AddStreamname(string oldStreamname, string newStreamname, bool alwaysIntercept) { // Debug.Assert(!String.IsNullOrEmpty(oldStreamname)); if (String.IsNullOrEmpty(oldStreamname)) { return; } if (!alwaysIntercept && StringUtil.EqualsIgnoreCase(oldStreamname, newStreamname)) { return; } if (_streams == null) { _streams = new HybridDictionary(true); } _streams[oldStreamname] = new StreamUpdate(newStreamname); } // Get the new stream name for a stream if a new name exists, otherwise // return the original stream name. internal string GetNewStreamname(string oldStreamname) { StreamUpdate streamUpdate = GetStreamUpdate(oldStreamname, false); if (streamUpdate != null) { return streamUpdate.NewStreamname; } return oldStreamname; } // // Get the StreamUpdate for a stream. // If alwaysIntercept is true, then the StreamUpdate is // always returned if it exists. // If alwaysIntercept is false, then only return the StreamUpdate // if the new stream has been successfully written to. // private StreamUpdate GetStreamUpdate(string oldStreamname, bool alwaysIntercept) { if (_streams == null) return null; StreamUpdate streamUpdate = (StreamUpdate) _streams[oldStreamname]; if (streamUpdate != null && !alwaysIntercept && !streamUpdate.WriteCompleted) { streamUpdate = null; } return streamUpdate; } public override object GetStreamVersion(string streamName) { StreamUpdate streamUpdate = GetStreamUpdate(streamName, false); if (streamUpdate != null) { return InternalConfigHost.StaticGetStreamVersion(streamUpdate.NewStreamname); } else { return Host.GetStreamVersion(streamName); } } public override Stream OpenStreamForRead(string streamName) { StreamUpdate streamUpdate = GetStreamUpdate(streamName, false); if (streamUpdate != null) { return InternalConfigHost.StaticOpenStreamForRead(streamUpdate.NewStreamname); } else { return Host.OpenStreamForRead(streamName); } } public override Stream OpenStreamForWrite(string streamName, string templateStreamName, ref object writeContext) { // Always attempt to write to the new stream name if it exists. StreamUpdate streamUpdate = GetStreamUpdate(streamName, true); if (streamUpdate != null) { return InternalConfigHost.StaticOpenStreamForWrite(streamUpdate.NewStreamname, templateStreamName, ref writeContext, false); } else { return Host.OpenStreamForWrite(streamName, templateStreamName, ref writeContext); } } public override void WriteCompleted(string streamName, bool success, object writeContext) { StreamUpdate streamUpdate = GetStreamUpdate(streamName, true); if (streamUpdate != null) { InternalConfigHost.StaticWriteCompleted(streamUpdate.NewStreamname, success, writeContext, false); // // Mark the write as having successfully completed, so that subsequent calls // to Read() will use the new stream name. // if (success) { streamUpdate.WriteCompleted = true; } } else { Host.WriteCompleted(streamName, success, writeContext); } } public override bool IsConfigRecordRequired(string configPath) { return true; } public override void DeleteStream(string streamName) { StreamUpdate streamUpdate = GetStreamUpdate(streamName, false); if (streamUpdate != null) { InternalConfigHost.StaticDeleteStream(streamUpdate.NewStreamname); } else { Host.DeleteStream(streamName); } } public override bool IsFile(string streamName) { StreamUpdate streamUpdate = GetStreamUpdate(streamName, false); if (streamUpdate != null) { return InternalConfigHost.StaticIsFile(streamUpdate.NewStreamname); } else { return Host.IsFile(streamName); } } } } // 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
- PermissionListSet.cs
- SubMenuStyleCollectionEditor.cs
- DragDeltaEventArgs.cs
- InnerItemCollectionView.cs
- ValidatorAttribute.cs
- PropertyDescriptorComparer.cs
- DataBindingHandlerAttribute.cs
- ResourceSetExpression.cs
- SqlNotificationEventArgs.cs
- TextMetrics.cs
- NativeMethods.cs
- templategroup.cs
- EmissiveMaterial.cs
- Atom10FormatterFactory.cs
- CardSpacePolicyElement.cs
- GCHandleCookieTable.cs
- Baml6ConstructorInfo.cs
- TreeNodeSelectionProcessor.cs
- Odbc32.cs
- QilUnary.cs
- ComPlusInstanceProvider.cs
- InfoCardRSAPKCS1KeyExchangeDeformatter.cs
- StrongNameMembershipCondition.cs
- SimpleMailWebEventProvider.cs
- AuthenticationSection.cs
- WebServiceErrorEvent.cs
- ContextInformation.cs
- StorageMappingFragment.cs
- SeekableReadStream.cs
- Pair.cs
- PeerNode.cs
- EncryptedKeyHashIdentifierClause.cs
- EtwTrace.cs
- DecimalFormatter.cs
- ObjectQueryState.cs
- StaticResourceExtension.cs
- CatalogPartCollection.cs
- EmptyCollection.cs
- RuleElement.cs
- ConstantCheck.cs
- MessageDecoder.cs
- MembershipValidatePasswordEventArgs.cs
- MatrixCamera.cs
- securitycriticaldata.cs
- AggregateNode.cs
- AcceleratedTokenProvider.cs
- metadatamappinghashervisitor.hashsourcebuilder.cs
- XmlEncodedRawTextWriter.cs
- _WinHttpWebProxyDataBuilder.cs
- TablePattern.cs
- TextSegment.cs
- TimeoutValidationAttribute.cs
- ImageField.cs
- webclient.cs
- QuaternionValueSerializer.cs
- ParameterBuilder.cs
- SingleAnimationBase.cs
- TraceUtility.cs
- ClientProxyGenerator.cs
- UnmanagedMarshal.cs
- SignatureDescription.cs
- HandlerFactoryCache.cs
- ScriptingScriptResourceHandlerSection.cs
- ConfigurationCollectionAttribute.cs
- WebServiceParameterData.cs
- SmtpFailedRecipientException.cs
- listitem.cs
- ResXFileRef.cs
- indexingfiltermarshaler.cs
- EdmValidator.cs
- ReaderContextStackData.cs
- MarkupWriter.cs
- SecurityUtils.cs
- SqlOuterApplyReducer.cs
- EventLogPermissionAttribute.cs
- DelegatingHeader.cs
- GorillaCodec.cs
- Nullable.cs
- CapabilitiesSection.cs
- HtmlTitle.cs
- RelationshipEnd.cs
- OdbcParameterCollection.cs
- DataGridViewCellLinkedList.cs
- DecoderReplacementFallback.cs
- DataGridViewCellParsingEventArgs.cs
- ManagementNamedValueCollection.cs
- Missing.cs
- HtmlControlPersistable.cs
- SdlChannelSink.cs
- PreviewPrintController.cs
- PostBackTrigger.cs
- RuleSettingsCollection.cs
- TextRangeEditLists.cs
- PrimitiveCodeDomSerializer.cs
- ApplyTemplatesAction.cs
- GlobalizationSection.cs
- XmlSerializationWriter.cs
- bidPrivateBase.cs
- LocalTransaction.cs
- DataControlFieldCell.cs