Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / ndp / fx / src / DataWeb / Server / System / Data / Services / ResponseBodyWriter.cs / 1 / ResponseBodyWriter.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // //// Provides a base class for DataWeb services. // // // @owner [....] //--------------------------------------------------------------------- namespace System.Data.Services { using System; using System.Collections; using System.Collections.Generic; using System.Data.Objects; using System.Diagnostics; using System.IO; using System.ServiceModel; using System.ServiceModel.Channels; using System.Text; using System.Xml; using System.Data.Services.Providers; using System.Data.Services.Serializers; ////// Use this class to encapsulate writing the body of the outgoing response /// for a data request. /// internal class ResponseBodyWriter { ///Encoding, if available. private readonly Encoding encoding; ///Whether private readonly bool hasMoved; ///has already moved. Host for the request being processed. private readonly IDataService service; ///Enumerator for results. private readonly IEnumerator queryResults; ///Description of request made to the system. private readonly RequestDescription requestDescription; ///Content format for response. private readonly ContentFormat responseFormat; ///Initializes a new /// Encoding, if available. /// Whetherthat can write the body of a response. has already moved. /// Service for the request being processed. /// Enumerator for results. /// Description of request made to the system. /// Content format for response. internal ResponseBodyWriter( Encoding encoding, bool hasMoved, IDataService service, IEnumerator queryResults, RequestDescription requestDescription, ContentFormat responseFormat) { Debug.Assert(responseFormat != ContentFormat.Unknown, "responseFormat != ContentFormat.Unknown"); this.encoding = encoding; this.hasMoved = hasMoved; this.service = service; this.queryResults = queryResults; this.requestDescription = requestDescription; this.responseFormat = responseFormat; } /// Gets the absolute URI to the service. internal Uri AbsoluteServiceUri { get { return this.service.RequestParams.AbsoluteServiceUri; } } ///Gets the internal IDataServiceHost Host { get { return this.service.Host; } } ///for this response. Gets the internal IDataServiceProvider Provider { get { return this.service.Provider; } } ///for this response. Writes the request body to the specified /// Stream to write to. internal void Write(Stream stream) { Debug.Assert(stream != null, "stream != null"); IExceptionWriter exceptionWriter = null; try { switch (this.responseFormat) { case ContentFormat.Binary: Debug.Assert( #if ASTORIA_OPEN_OBJECT this.requestDescription.TargetKind == RequestTargetKind.OpenPropertyValue || #endif this.requestDescription.TargetKind == RequestTargetKind.PrimitiveValue, this.requestDescription.TargetKind + " is PrimitiveValue or OpenPropertyValue"); BinarySerializer binarySerializer = new BinarySerializer(stream); exceptionWriter = binarySerializer; binarySerializer.WriteRequest(this.queryResults.Current); break; case ContentFormat.Text: Debug.Assert( #if ASTORIA_OPEN_OBJECT this.requestDescription.TargetKind == RequestTargetKind.OpenPropertyValue || #endif this.requestDescription.TargetKind == RequestTargetKind.PrimitiveValue, this.requestDescription.TargetKind + " is PrimitiveValue or OpenPropertyValue"); TextSerializer textSerializer = new TextSerializer(stream, this.encoding); exceptionWriter = textSerializer; textSerializer.WriteRequest(this.queryResults.Current); break; case ContentFormat.Atom: case ContentFormat.Json: case ContentFormat.PlainXml: Debug.Assert(this.requestDescription.TargetKind != RequestTargetKind.PrimitiveValue, "this.requestDescription.TargetKind != RequestTargetKind.PrimitiveValue"); #if ASTORIA_OPEN_OBJECT Debug.Assert(this.requestDescription.TargetKind != RequestTargetKind.OpenPropertyValue, "this.requestDescription.TargetKind != RequestTargetKind.OpenPropertyValue"); #endif Debug.Assert(this.requestDescription.TargetKind != RequestTargetKind.Metadata, "this.requestDescription.TargetKind != RequestTargetKind.Metadata"); if (this.requestDescription.TargetKind == RequestTargetKind.ServiceDirectory) { if (this.responseFormat == ContentFormat.Json) { JsonServiceDocumentSerializer serviceSerializer = new JsonServiceDocumentSerializer(stream, this.Provider, this.encoding); exceptionWriter = serviceSerializer; serviceSerializer.WriteRequest(); break; } else { AtomServiceDocumentSerializer serviceSerializer = new AtomServiceDocumentSerializer(stream, this.AbsoluteServiceUri, this.Provider, this.encoding); exceptionWriter = serviceSerializer; serviceSerializer.WriteRequest(); } } else { Serializer serializer; if (ContentFormat.Json == this.responseFormat) { serializer = new JsonSerializer(this.requestDescription, stream, this.AbsoluteServiceUri, this.service, this.encoding, this.Host.ResponseETag); } else if (ContentFormat.PlainXml == this.responseFormat) { serializer = new PlainXmlSerializer(this.requestDescription, this.AbsoluteServiceUri, this.service, stream, this.encoding); } else { Debug.Assert( #if ASTORIA_OPEN_OBJECT this.requestDescription.TargetKind == RequestTargetKind.OpenProperty || #endif this.requestDescription.TargetKind == RequestTargetKind.Resource, "TargetKind " + this.requestDescription.TargetKind + " == Resource || OpenProperty -- POX should have handled it otherwise."); serializer = new SyndicationSerializer( this.requestDescription, this.AbsoluteServiceUri, this.service, stream, this.encoding, this.Host.ResponseETag, new Atom10FormatterFactory()); } exceptionWriter = serializer; Debug.Assert(exceptionWriter != null, "this.exceptionWriter != null"); serializer.WriteRequest(this.queryResults, this.hasMoved); } break; default: Debug.Assert( this.responseFormat == ContentFormat.MetadataDocument, "responseFormat(" + this.responseFormat + ") == ContentFormat.MetadataDocument -- otherwise exception should have been thrown before"); Debug.Assert(this.requestDescription.TargetKind == RequestTargetKind.Metadata, "this.requestDescription.TargetKind == RequestTargetKind.Metadata"); MetadataSerializer metadataSerializer = new MetadataSerializer(stream, this.AbsoluteServiceUri, this.Provider, this.encoding); exceptionWriter = metadataSerializer; metadataSerializer.WriteRequest(); break; } } catch (Exception exception) { if (!WebUtil.IsCatchableExceptionType(exception)) { throw; } // Only JSON and XML are supported. string contentType = (this.responseFormat == ContentFormat.Json) ? XmlConstants.MimeApplicationJson : XmlConstants.MimeApplicationXml; ErrorHandler.HandleDuringWritingException(exception, this.service, contentType, exceptionWriter); } finally { WebUtil.Dispose(this.queryResults); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- //. // Copyright (c) Microsoft Corporation. All rights reserved. // //// Provides a base class for DataWeb services. // // // @owner [....] //--------------------------------------------------------------------- namespace System.Data.Services { using System; using System.Collections; using System.Collections.Generic; using System.Data.Objects; using System.Diagnostics; using System.IO; using System.ServiceModel; using System.ServiceModel.Channels; using System.Text; using System.Xml; using System.Data.Services.Providers; using System.Data.Services.Serializers; ////// Use this class to encapsulate writing the body of the outgoing response /// for a data request. /// internal class ResponseBodyWriter { ///Encoding, if available. private readonly Encoding encoding; ///Whether private readonly bool hasMoved; ///has already moved. Host for the request being processed. private readonly IDataService service; ///Enumerator for results. private readonly IEnumerator queryResults; ///Description of request made to the system. private readonly RequestDescription requestDescription; ///Content format for response. private readonly ContentFormat responseFormat; ///Initializes a new /// Encoding, if available. /// Whetherthat can write the body of a response. has already moved. /// Service for the request being processed. /// Enumerator for results. /// Description of request made to the system. /// Content format for response. internal ResponseBodyWriter( Encoding encoding, bool hasMoved, IDataService service, IEnumerator queryResults, RequestDescription requestDescription, ContentFormat responseFormat) { Debug.Assert(responseFormat != ContentFormat.Unknown, "responseFormat != ContentFormat.Unknown"); this.encoding = encoding; this.hasMoved = hasMoved; this.service = service; this.queryResults = queryResults; this.requestDescription = requestDescription; this.responseFormat = responseFormat; } /// Gets the absolute URI to the service. internal Uri AbsoluteServiceUri { get { return this.service.RequestParams.AbsoluteServiceUri; } } ///Gets the internal IDataServiceHost Host { get { return this.service.Host; } } ///for this response. Gets the internal IDataServiceProvider Provider { get { return this.service.Provider; } } ///for this response. Writes the request body to the specified /// Stream to write to. internal void Write(Stream stream) { Debug.Assert(stream != null, "stream != null"); IExceptionWriter exceptionWriter = null; try { switch (this.responseFormat) { case ContentFormat.Binary: Debug.Assert( #if ASTORIA_OPEN_OBJECT this.requestDescription.TargetKind == RequestTargetKind.OpenPropertyValue || #endif this.requestDescription.TargetKind == RequestTargetKind.PrimitiveValue, this.requestDescription.TargetKind + " is PrimitiveValue or OpenPropertyValue"); BinarySerializer binarySerializer = new BinarySerializer(stream); exceptionWriter = binarySerializer; binarySerializer.WriteRequest(this.queryResults.Current); break; case ContentFormat.Text: Debug.Assert( #if ASTORIA_OPEN_OBJECT this.requestDescription.TargetKind == RequestTargetKind.OpenPropertyValue || #endif this.requestDescription.TargetKind == RequestTargetKind.PrimitiveValue, this.requestDescription.TargetKind + " is PrimitiveValue or OpenPropertyValue"); TextSerializer textSerializer = new TextSerializer(stream, this.encoding); exceptionWriter = textSerializer; textSerializer.WriteRequest(this.queryResults.Current); break; case ContentFormat.Atom: case ContentFormat.Json: case ContentFormat.PlainXml: Debug.Assert(this.requestDescription.TargetKind != RequestTargetKind.PrimitiveValue, "this.requestDescription.TargetKind != RequestTargetKind.PrimitiveValue"); #if ASTORIA_OPEN_OBJECT Debug.Assert(this.requestDescription.TargetKind != RequestTargetKind.OpenPropertyValue, "this.requestDescription.TargetKind != RequestTargetKind.OpenPropertyValue"); #endif Debug.Assert(this.requestDescription.TargetKind != RequestTargetKind.Metadata, "this.requestDescription.TargetKind != RequestTargetKind.Metadata"); if (this.requestDescription.TargetKind == RequestTargetKind.ServiceDirectory) { if (this.responseFormat == ContentFormat.Json) { JsonServiceDocumentSerializer serviceSerializer = new JsonServiceDocumentSerializer(stream, this.Provider, this.encoding); exceptionWriter = serviceSerializer; serviceSerializer.WriteRequest(); break; } else { AtomServiceDocumentSerializer serviceSerializer = new AtomServiceDocumentSerializer(stream, this.AbsoluteServiceUri, this.Provider, this.encoding); exceptionWriter = serviceSerializer; serviceSerializer.WriteRequest(); } } else { Serializer serializer; if (ContentFormat.Json == this.responseFormat) { serializer = new JsonSerializer(this.requestDescription, stream, this.AbsoluteServiceUri, this.service, this.encoding, this.Host.ResponseETag); } else if (ContentFormat.PlainXml == this.responseFormat) { serializer = new PlainXmlSerializer(this.requestDescription, this.AbsoluteServiceUri, this.service, stream, this.encoding); } else { Debug.Assert( #if ASTORIA_OPEN_OBJECT this.requestDescription.TargetKind == RequestTargetKind.OpenProperty || #endif this.requestDescription.TargetKind == RequestTargetKind.Resource, "TargetKind " + this.requestDescription.TargetKind + " == Resource || OpenProperty -- POX should have handled it otherwise."); serializer = new SyndicationSerializer( this.requestDescription, this.AbsoluteServiceUri, this.service, stream, this.encoding, this.Host.ResponseETag, new Atom10FormatterFactory()); } exceptionWriter = serializer; Debug.Assert(exceptionWriter != null, "this.exceptionWriter != null"); serializer.WriteRequest(this.queryResults, this.hasMoved); } break; default: Debug.Assert( this.responseFormat == ContentFormat.MetadataDocument, "responseFormat(" + this.responseFormat + ") == ContentFormat.MetadataDocument -- otherwise exception should have been thrown before"); Debug.Assert(this.requestDescription.TargetKind == RequestTargetKind.Metadata, "this.requestDescription.TargetKind == RequestTargetKind.Metadata"); MetadataSerializer metadataSerializer = new MetadataSerializer(stream, this.AbsoluteServiceUri, this.Provider, this.encoding); exceptionWriter = metadataSerializer; metadataSerializer.WriteRequest(); break; } } catch (Exception exception) { if (!WebUtil.IsCatchableExceptionType(exception)) { throw; } // Only JSON and XML are supported. string contentType = (this.responseFormat == ContentFormat.Json) ? XmlConstants.MimeApplicationJson : XmlConstants.MimeApplicationXml; ErrorHandler.HandleDuringWritingException(exception, this.service, contentType, exceptionWriter); } finally { WebUtil.Dispose(this.queryResults); } } } } // 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
- OdbcConnection.cs
- Math.cs
- COM2ICategorizePropertiesHandler.cs
- BezierSegment.cs
- EventsTab.cs
- IntellisenseTextBox.cs
- OutputWindow.cs
- FormView.cs
- XmlDataDocument.cs
- MultiDataTrigger.cs
- ImageButton.cs
- OutputCacheProfile.cs
- PackageRelationshipCollection.cs
- OdbcErrorCollection.cs
- XmlSchemaResource.cs
- CompModSwitches.cs
- HandlerWithFactory.cs
- ObjectCloneHelper.cs
- XMLSchema.cs
- BaseTemplateBuildProvider.cs
- EdmEntityTypeAttribute.cs
- HttpModuleActionCollection.cs
- TextMarkerSource.cs
- RelationHandler.cs
- ZoneLinkButton.cs
- DayRenderEvent.cs
- ContainerActivationHelper.cs
- TextPenaltyModule.cs
- Condition.cs
- SerializationEventsCache.cs
- WebPartUtil.cs
- SelectionListComponentEditor.cs
- RayMeshGeometry3DHitTestResult.cs
- DataBindingExpressionBuilder.cs
- ControlOperationBehavior.cs
- TripleDESCryptoServiceProvider.cs
- XslAstAnalyzer.cs
- ProcessModelSection.cs
- DefaultHttpHandler.cs
- DetailsViewDesigner.cs
- LogSwitch.cs
- unsafeIndexingFilterStream.cs
- Util.cs
- SiteMapPath.cs
- SiteMapDataSourceView.cs
- SQLSingleStorage.cs
- SchemaMerger.cs
- ConnectionPoolManager.cs
- Brush.cs
- TimeoutException.cs
- RandomNumberGenerator.cs
- QilList.cs
- AdPostCacheSubstitution.cs
- UriScheme.cs
- TabControlCancelEvent.cs
- dbdatarecord.cs
- Matrix3DValueSerializer.cs
- AspCompat.cs
- RenderDataDrawingContext.cs
- BooleanAnimationBase.cs
- TraceContextRecord.cs
- UnsafeNativeMethods.cs
- MergablePropertyAttribute.cs
- BasicHttpSecurityElement.cs
- OracleLob.cs
- Size.cs
- XmlSchemaCollection.cs
- safemediahandle.cs
- BulletedList.cs
- ImageAttributes.cs
- Vertex.cs
- HtmlImage.cs
- exports.cs
- FormViewPageEventArgs.cs
- RtfControls.cs
- XsltConvert.cs
- SecurityContext.cs
- SymLanguageVendor.cs
- GeneralTransform3DGroup.cs
- SqlDataSourceConnectionPanel.cs
- GridPatternIdentifiers.cs
- Size.cs
- Char.cs
- WeakReference.cs
- CalendarButtonAutomationPeer.cs
- BrowserCapabilitiesCompiler.cs
- TableSectionStyle.cs
- Cloud.cs
- InlineCollection.cs
- IncrementalReadDecoders.cs
- WsatTransactionInfo.cs
- XmlSchemaAttributeGroup.cs
- Utils.cs
- XmlDataImplementation.cs
- FlowDocumentPageViewerAutomationPeer.cs
- ConfigurationException.cs
- ServiceNameCollection.cs
- UICuesEvent.cs
- WebResourceAttribute.cs
- DateTimeStorage.cs