Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataWeb / Server / System / Data / Services / Serializers / JsonServiceDocumentSerializer.cs / 1305376 / JsonServiceDocumentSerializer.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // //// Provides a serializer for the Json Service Document format. // // // @owner [....] //--------------------------------------------------------------------- namespace System.Data.Services.Serializers { using System.Data.Services.Providers; using System.Diagnostics; using System.IO; using System.Text; ////// Provides support for serializing service models as /// a Service Document. /// [DebuggerDisplay("JsonServiceDocumentSerializer={baseUri}")] internal sealed class JsonServiceDocumentSerializer : IExceptionWriter { ///JsonWriter to write out strings in Json format. private readonly JsonWriter writer; ///Data provider from which metadata should be gathered. private readonly DataServiceProviderWrapper provider; ///Element name for the json service document. private const string JsonEntitySetsElementName = "EntitySets"; ////// Initializes a new JsonServiceDocumentSerializer, ready to write /// out the Service Document for a data provider. /// /// Stream to which output should be sent. /// Data provider from which metadata should be gathered. /// Text encoding for the response. internal JsonServiceDocumentSerializer( Stream output, DataServiceProviderWrapper provider, Encoding encoding) { Debug.Assert(output != null, "output != null"); Debug.Assert(provider != null, "provider != null"); this.writer = new JsonWriter(new StreamWriter(output, encoding)); this.provider = provider; } ///Serializes exception information. /// Description of exception to serialize. public void WriteException(HandleExceptionArgs args) { ErrorHandler.SerializeJsonError(args, this.writer); } ///Writes the Service Document to the output stream. internal void WriteRequest() { try { this.writer.StartObjectScope(); // { this.writer.WriteDataWrapper(); // "d" : this.writer.StartObjectScope(); this.writer.WriteName(JsonEntitySetsElementName); this.writer.StartArrayScope(); foreach (ResourceSetWrapper container in this.provider.ResourceSets) { this.writer.WriteValue(container.Name); } this.writer.EndScope(); // end the array scope this.writer.EndScope(); // end the object scope this.writer.EndScope(); // end "d" scope } finally { this.writer.Flush(); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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