Code:

/ WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / Channels / TextMessageEncodingBindingElement.cs / 1 / TextMessageEncodingBindingElement.cs

    //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------

namespace System.ServiceModel.Channels 
{
    using System.Collections.Generic; 
    using System.ServiceModel.Description; 
    using System.Text;
    using System.Runtime.Serialization; 
    using System.ServiceModel.Channels;
    using System.ServiceModel;
    using System.Xml;
 
    public sealed class TextMessageEncodingBindingElement : MessageEncodingBindingElement, IWsdlExportExtension, IPolicyExportExtension
    { 
        int maxReadPoolSize; 
        int maxWritePoolSize;
        XmlDictionaryReaderQuotas readerQuotas; 
        MessageVersion messageVersion;
        Encoding writeEncoding;

        public TextMessageEncodingBindingElement() 
            : this(MessageVersion.Default, TextEncoderDefaults.Encoding)
        { 
        } 

        public TextMessageEncodingBindingElement(MessageVersion messageVersion, Encoding writeEncoding) 
        {
            if (messageVersion == null)
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("messageVersion");
 
            if (writeEncoding == null)
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("writeEncoding"); 
 
            TextEncoderDefaults.ValidateEncoding(writeEncoding);
 
            this.maxReadPoolSize = EncoderDefaults.MaxReadPoolSize;
            this.maxWritePoolSize = EncoderDefaults.MaxWritePoolSize;
            this.readerQuotas = new XmlDictionaryReaderQuotas();
            EncoderDefaults.ReaderQuotas.CopyTo(this.readerQuotas); 
            this.messageVersion = messageVersion;
            this.writeEncoding = writeEncoding; 
        } 

        TextMessageEncodingBindingElement(TextMessageEncodingBindingElement elementToBeCloned) 
            : base(elementToBeCloned)
        {
            this.maxReadPoolSize = elementToBeCloned.maxReadPoolSize;
            this.maxWritePoolSize = elementToBeCloned.maxWritePoolSize; 
            this.readerQuotas = new XmlDictionaryReaderQuotas();
            elementToBeCloned.readerQuotas.CopyTo(this.readerQuotas); 
            this.writeEncoding = elementToBeCloned.writeEncoding; 
            this.messageVersion = elementToBeCloned.messageVersion;
        } 

        public int MaxReadPoolSize
        {
            get 
            {
                return this.maxReadPoolSize; 
            } 
            set
            { 
                if (value <= 0)
                {
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("value", value,
                                                    SR.GetString(SR.ValueMustBePositive))); 
                }
                this.maxReadPoolSize = value; 
            } 
        }
 
        public int MaxWritePoolSize
        {
            get
            { 
                return this.maxWritePoolSize;
            } 
            set 
            {
                if (value <= 0) 
                {
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("value", value,
                                                    SR.GetString(SR.ValueMustBePositive)));
                } 
                this.maxWritePoolSize = value;
            } 
        } 

        public XmlDictionaryReaderQuotas ReaderQuotas 
        {
            get
            {
                return this.readerQuotas; 
            }
        } 
 
        public override MessageVersion MessageVersion
        { 
            get
            {
                return this.messageVersion;
            } 
            set
            { 
                if (value == null) 
                {
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("value"); 
                }

                this.messageVersion = value;
            } 
        }
 
        public Encoding WriteEncoding 
        {
            get 
            {
                return this.writeEncoding;
            }
            set 
            {
                if (value == null) 
                { 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("value");
                } 

                TextEncoderDefaults.ValidateEncoding(value);
                this.writeEncoding = value;
            } 
        }
 
        public override IChannelFactory BuildChannelFactory(BindingContext context) 
        {
            return InternalBuildChannelFactory(context); 
        }

        public override IChannelListener BuildChannelListener(BindingContext context)
        { 
            return InternalBuildChannelListener(context);
        } 
 
        public override bool CanBuildChannelListener(BindingContext context)
        { 
            return InternalCanBuildChannelListener(context);
        }

        public override BindingElement Clone() 
        {
            return new TextMessageEncodingBindingElement(this); 
        } 

        public override MessageEncoderFactory CreateMessageEncoderFactory() 
        {
            return new TextMessageEncoderFactory(MessageVersion, WriteEncoding, this.MaxReadPoolSize, this.MaxWritePoolSize, this.ReaderQuotas);
        }
 
        public override T GetProperty(BindingContext context)
        { 
            if (context == null) 
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context"); 
            }
            if (typeof(T) == typeof(XmlDictionaryReaderQuotas))
            {
                return (T)(object)this.readerQuotas; 
            }
            else 
            { 
                return base.GetProperty(context);
            } 
        }

        void IPolicyExportExtension.ExportPolicy(MetadataExporter exporter, PolicyConversionContext context)
        { 
            if (context == null)
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context"); 
            }
        } 

        void IWsdlExportExtension.ExportContract(WsdlExporter exporter, WsdlContractConversionContext context) { }
        void IWsdlExportExtension.ExportEndpoint(WsdlExporter exporter, WsdlEndpointConversionContext context)
        { 
            if (context == null)
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context"); 
            }
 
            SoapHelper.SetSoapVersion(context, exporter, this.messageVersion.Envelope);
        }

        internal override bool CheckEncodingVersion(EnvelopeVersion version) 
        {
            return messageVersion.Envelope == version; 
        } 

        internal override bool IsMatch(BindingElement b) 
        {
            if (!base.IsMatch(b))
                return false;
 
            TextMessageEncodingBindingElement text = b as TextMessageEncodingBindingElement;
            if (text == null) 
                return false; 
            if (this.maxReadPoolSize != text.MaxReadPoolSize)
                return false; 
            if (this.maxWritePoolSize != text.MaxWritePoolSize)
                return false;

            // compare XmlDictionaryReaderQuotas 
            if (this.readerQuotas.MaxStringContentLength != text.ReaderQuotas.MaxStringContentLength)
                return false; 
            if (this.readerQuotas.MaxArrayLength != text.ReaderQuotas.MaxArrayLength) 
                return false;
            if (this.readerQuotas.MaxBytesPerRead != text.ReaderQuotas.MaxBytesPerRead) 
                return false;
            if (this.readerQuotas.MaxDepth != text.ReaderQuotas.MaxDepth)
                return false;
            if (this.readerQuotas.MaxNameTableCharCount != text.ReaderQuotas.MaxNameTableCharCount) 
                return false;
 
            if (this.WriteEncoding.EncodingName != text.WriteEncoding.EncodingName) 
                return false;
            if (!this.MessageVersion.IsMatch(text.MessageVersion)) 
                return false;

            return true;
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.