HttpStreamXmlDictionaryWriter.cs source code in C# .NET

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                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx35 / System.ServiceModel.Web / System / ServiceModel / Channels / HttpStreamXmlDictionaryWriter.cs / 1305376 / HttpStreamXmlDictionaryWriter.cs
                        
                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------

namespace System.ServiceModel.Channels 
{
    using System.Collections.Generic; 
    using System.Collections.ObjectModel; 
    using System.IO;
    using System.Net; 
    using System.Xml;
    using System.Text;
    using System.ServiceModel.Dispatcher;
    using System.ServiceModel.Syndication; 

    class HttpStreamXmlDictionaryWriter : XmlDictionaryWriter 
    { 
        WriteState state;
        Stream stream; 

        public HttpStreamXmlDictionaryWriter(Stream stream)
        {
            if (stream == null) 
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("stream"); 
            } 
            this.stream = stream;
            this.state = WriteState.Start; 
        }

        public override WriteState WriteState
        { 
            get { return this.state; }
        } 
 
        public override void Close()
        { 
            if (this.state != WriteState.Closed)
            {
                this.state = WriteState.Closed;
                stream.Close(); 
            }
        } 
 
        public override void Flush()
        { 
            stream.Flush();
        }

        public override string LookupPrefix(string ns) 
        {
            if (ns == string.Empty) 
            { 
                return string.Empty;
            } 
            else if (ns == Atom10FeedFormatter.XmlNs)
            {
                return "xml";
            } 
            else if (ns == Atom10FeedFormatter.XmlNsNs)
            { 
                return "xmlns"; 
            }
            else 
            {
                return null;
            }
        } 

        public override void WriteBase64(byte[] buffer, int index, int count) 
        { 
            if (buffer == null)
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("buffer"));
            }
            if (index < 0)
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("index"));
            } 
            if (count < 0) 
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("count")); 
            }
            if (count > buffer.Length - index)
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("count", SR2.GetString(SR2.SizeExceedsRemainingBufferSpace, buffer.Length - index))); 
            }
            ThrowIfClosed(); 
            this.stream.Write(buffer, index, count); 
            this.state = WriteState.Content;
        } 

        public override void WriteCData(string text)
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException()); 
        }
 
        public override void WriteCharEntity(char ch) 
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException()); 
        }

        public override void WriteChars(char[] buffer, int index, int count)
        { 
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
        } 
 
        public override void WriteComment(string text)
        { 
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
        }

        public override void WriteDocType(string name, string pubid, string sysid, string subset) 
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException()); 
        } 

        public override void WriteEndAttribute() 
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
        }
 
        public override void WriteEndDocument()
        { 
        } 

        public override void WriteEndElement() 
        {
            ThrowIfClosed();
            if (this.state != WriteState.Element && this.state != WriteState.Content)
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(SR2.GetString(SR2.EndElementWithoutStartElement)));
            } 
        } 

        public override void WriteEntityRef(string name) 
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
        }
 
        public override void WriteFullEndElement()
        { 
            ThrowIfClosed(); 
            if (this.state != WriteState.Element && this.state != WriteState.Content)
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(SR2.GetString(SR2.EndElementWithoutStartElement)));
            }
        }
 
        public override void WriteProcessingInstruction(string name, string text)
        { 
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException()); 
        }
 
        public override void WriteRaw(string data)
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
        } 

        public override void WriteRaw(char[] buffer, int index, int count) 
        { 
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
        } 

        public override void WriteStartAttribute(string prefix, string localName, string ns)
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException()); 
        }
 
        public override void WriteStartDocument(bool standalone) 
        {
            ThrowIfClosed(); 
        }

        public override void WriteStartDocument()
        { 
            ThrowIfClosed();
        } 
 
        public override void WriteStartElement(string prefix, string localName, string ns)
        { 
            ThrowIfClosed();
            if (!string.IsNullOrEmpty(prefix) || !string.IsNullOrEmpty(ns) || localName != HttpStreamMessage.StreamElementName)
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException()); 
            }
            this.state = WriteState.Element; 
        } 

        public override void WriteString(string text) 
        {
            byte[] buffer = Convert.FromBase64String(text);
            WriteBase64(buffer, 0, buffer.Length);
        } 

        public override void WriteSurrogateCharEntity(char lowChar, char highChar) 
        { 
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
        } 

        public override void WriteWhitespace(string ws)
        {
            if (ws == null) 
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("ws"); 
            } 
            if (ws.Length != 0)
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
            }
        }
 
        protected void ThrowIfClosed()
        { 
            if (this.state == WriteState.Closed) 
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR2.GetString(SR2.XmlWriterClosed))); 
            }
        }
    }
} 

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

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