JsonServiceDocumentSerializer.cs source code in C# .NET

Source code for the .NET framework in C#

                        
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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