BatchWriter.cs source code in C# .NET

                        Code:
                         / Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / ndp / fx / src / DataWeb / Server / System / Data / Services / Serializers / BatchWriter.cs / 1 / BatchWriter.cs
                        
                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//  
//      Provides a base class for DataWeb services.
//  
// 
// @owner  [....]
//--------------------------------------------------------------------- 

namespace System.Data.Services.Serializers
{
    #region Namespaces. 

    using System; 
    using System.Diagnostics; 
    using System.IO;
 
    #endregion Namespaces.

    /// 
    /// Static helper class to write responses for batch requests 
    /// 
    internal static class BatchWriter 
    { 
        /// 
        /// Writes the start of the changeset response 
        /// 
        /// writer to which the response needs to be written
        /// batch boundary
        /// changeset boundary 
        internal static void WriteStartBatchBoundary(StreamWriter writer, string batchBoundary, string changesetBoundary)
        { 
            WriterStartBoundary(writer, batchBoundary); 
            writer.WriteLine(
                "{0}: {1}; {2}={3}", 
                XmlConstants.HttpContentType,
                XmlConstants.MimeMultiPartMixed,
                XmlConstants.HttpMultipartBoundary,
                changesetBoundary); 
            writer.WriteLine(); // NewLine to seperate the header from message
        } 
 
        /// Write the boundary and header information.
        /// writer to which the response needs to be written 
        /// host containing the value of the response headers
        /// boundary string that needs to be written
        internal static void WriteBoundaryAndHeaders(StreamWriter writer, IDataServiceHost host, string boundary)
        { 
            Debug.Assert(writer != null, "writer != null");
            Debug.Assert(host != null, "host != null"); 
            Debug.Assert(boundary != null, "boundary != null"); 
            WriterStartBoundary(writer, boundary);
 
            // First write the headers to indicate that the payload below is a http request
            WriteHeaderValue(writer, XmlConstants.HttpContentType, XmlConstants.MimeApplicationHttp);
            WriteHeaderValue(writer, XmlConstants.HttpContentTransferEncoding, XmlConstants.BatchRequestContentTransferEncoding);
            writer.WriteLine(); // NewLine to seperate the batch headers from http headers 

            // In error cases, we create a dummy host, which has no request header information. 
            // Hence we need to handle the case here. 
            writer.WriteLine("{0} {1} {2}", XmlConstants.HttpVersionInBatching, host.ResponseStatusCode, WebUtil.GetStatusCodeText(host.ResponseStatusCode));
 
            BatchServiceHost batch = (BatchServiceHost)host;
            if (null != batch.ContentId)
            {
                WriteHeaderValue(writer, XmlConstants.HttpContentID, batch.ContentId); 
            }
 
            WriteHeaderValue(writer, XmlConstants.HttpContentType, host.ResponseContentType); 
            WriteHeaderValue(writer, XmlConstants.HttpResponseCacheControl, host.ResponseCacheControl);
            WriteHeaderValue(writer, XmlConstants.HttpResponseETag, host.ResponseETag); 
            WriteHeaderValue(writer, XmlConstants.HttpResponseLocation, host.ResponseLocation);
            WriteHeaderValue(writer, XmlConstants.HttpDataServiceVersion, host.ResponseVersion);
            BatchServiceHost batchHost = host as BatchServiceHost;
            Debug.Assert(batchHost != null, "batchHost != null -- only batch host currently supported."); 
            WriteHeaderValue(writer, XmlConstants.HttpResponseAllow, batchHost.ResponseAllowHeader);
            writer.WriteLine(); // NewLine to seperate the header from message 
        } 

        ///  
        /// Write the end boundary
        /// 
        /// writer to which the response needs to be written
        /// end boundary string. 
        internal static void WriteEndBoundary(StreamWriter writer, string boundary)
        { 
            writer.WriteLine("--{0}--", boundary); 
        }
 
        /// 
        /// Write the start boundary
        /// 
        /// writer to which the response needs to be written 
        /// boundary string.
        private static void WriterStartBoundary(StreamWriter writer, string boundary) 
        { 
            writer.WriteLine("--{0}", boundary);
        } 

        /// 
        /// Write the header name and value
        ///  
        /// writer to which the response needs to be written
        /// name of the header whose value needs to be written. 
        /// value of the header that needs to be written. 
        private static void WriteHeaderValue(StreamWriter writer, string headerName, object headerValue)
        { 
            if (headerValue != null)
            {
                string text = Convert.ToString(headerValue, System.Globalization.CultureInfo.InvariantCulture);
                if (!String.IsNullOrEmpty(text)) 
                {
                    writer.WriteLine("{0}: {1}", headerName, text); 
                } 
            }
        } 
    }
}

// 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.Serializers
{
    #region Namespaces. 

    using System; 
    using System.Diagnostics; 
    using System.IO;
 
    #endregion Namespaces.

    /// 
    /// Static helper class to write responses for batch requests 
    /// 
    internal static class BatchWriter 
    { 
        /// 
        /// Writes the start of the changeset response 
        /// 
        /// writer to which the response needs to be written
        /// batch boundary
        /// changeset boundary 
        internal static void WriteStartBatchBoundary(StreamWriter writer, string batchBoundary, string changesetBoundary)
        { 
            WriterStartBoundary(writer, batchBoundary); 
            writer.WriteLine(
                "{0}: {1}; {2}={3}", 
                XmlConstants.HttpContentType,
                XmlConstants.MimeMultiPartMixed,
                XmlConstants.HttpMultipartBoundary,
                changesetBoundary); 
            writer.WriteLine(); // NewLine to seperate the header from message
        } 
 
        /// Write the boundary and header information.
        /// writer to which the response needs to be written 
        /// host containing the value of the response headers
        /// boundary string that needs to be written
        internal static void WriteBoundaryAndHeaders(StreamWriter writer, IDataServiceHost host, string boundary)
        { 
            Debug.Assert(writer != null, "writer != null");
            Debug.Assert(host != null, "host != null"); 
            Debug.Assert(boundary != null, "boundary != null"); 
            WriterStartBoundary(writer, boundary);
 
            // First write the headers to indicate that the payload below is a http request
            WriteHeaderValue(writer, XmlConstants.HttpContentType, XmlConstants.MimeApplicationHttp);
            WriteHeaderValue(writer, XmlConstants.HttpContentTransferEncoding, XmlConstants.BatchRequestContentTransferEncoding);
            writer.WriteLine(); // NewLine to seperate the batch headers from http headers 

            // In error cases, we create a dummy host, which has no request header information. 
            // Hence we need to handle the case here. 
            writer.WriteLine("{0} {1} {2}", XmlConstants.HttpVersionInBatching, host.ResponseStatusCode, WebUtil.GetStatusCodeText(host.ResponseStatusCode));
 
            BatchServiceHost batch = (BatchServiceHost)host;
            if (null != batch.ContentId)
            {
                WriteHeaderValue(writer, XmlConstants.HttpContentID, batch.ContentId); 
            }
 
            WriteHeaderValue(writer, XmlConstants.HttpContentType, host.ResponseContentType); 
            WriteHeaderValue(writer, XmlConstants.HttpResponseCacheControl, host.ResponseCacheControl);
            WriteHeaderValue(writer, XmlConstants.HttpResponseETag, host.ResponseETag); 
            WriteHeaderValue(writer, XmlConstants.HttpResponseLocation, host.ResponseLocation);
            WriteHeaderValue(writer, XmlConstants.HttpDataServiceVersion, host.ResponseVersion);
            BatchServiceHost batchHost = host as BatchServiceHost;
            Debug.Assert(batchHost != null, "batchHost != null -- only batch host currently supported."); 
            WriteHeaderValue(writer, XmlConstants.HttpResponseAllow, batchHost.ResponseAllowHeader);
            writer.WriteLine(); // NewLine to seperate the header from message 
        } 

        ///  
        /// Write the end boundary
        /// 
        /// writer to which the response needs to be written
        /// end boundary string. 
        internal static void WriteEndBoundary(StreamWriter writer, string boundary)
        { 
            writer.WriteLine("--{0}--", boundary); 
        }
 
        /// 
        /// Write the start boundary
        /// 
        /// writer to which the response needs to be written 
        /// boundary string.
        private static void WriterStartBoundary(StreamWriter writer, string boundary) 
        { 
            writer.WriteLine("--{0}", boundary);
        } 

        /// 
        /// Write the header name and value
        ///  
        /// writer to which the response needs to be written
        /// name of the header whose value needs to be written. 
        /// value of the header that needs to be written. 
        private static void WriteHeaderValue(StreamWriter writer, string headerName, object headerValue)
        { 
            if (headerValue != null)
            {
                string text = Convert.ToString(headerValue, System.Globalization.CultureInfo.InvariantCulture);
                if (!String.IsNullOrEmpty(text)) 
                {
                    writer.WriteLine("{0}: {1}", headerName, text); 
                } 
            }
        } 
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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BatchWriter.cs source code in C# .NET

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