MetadataExchangeBindings.cs source code in C# .NET

                        Code:
                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / Description / MetadataExchangeBindings.cs / 1 / MetadataExchangeBindings.cs
                        
                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------

namespace System.ServiceModel.Description 
{
    using System.Globalization; 
    using System.ServiceModel.Channels; 
    using System.ServiceModel;
    using System.Collections.Generic; 

    public static class MetadataExchangeBindings
    {
        static Binding httpBinding; 
        static Binding httpGetBinding;
        static Binding httpsBinding; 
        static Binding httpsGetBinding; 
        static Binding tcpBinding;
        static Binding pipeBinding; 

        internal static Binding Http
        {
            get 
            {
                // don't need to lock because no guarantee of instance identity 
                if (httpBinding == null) 
                {
                    httpBinding = CreateHttpBinding(); 
                }

                return httpBinding;
            } 
        }
 
        internal static Binding HttpGet 
        {
            get 
            {
                // don't need to lock because no guarantee of instance identity
                if (httpGetBinding == null)
                { 
                    httpGetBinding = CreateHttpGetBinding();
                } 
 
                return httpGetBinding;
            } 
        }

        internal static Binding Https
        { 
            get
            { 
                // don't need to lock because no guarantee of instance identity 
                if (httpsBinding == null)
                { 
                    httpsBinding = CreateHttpsBinding();
                }

                return httpsBinding; 
            }
        } 
 
        internal static Binding HttpsGet
        { 
            get
            {
                // don't need to lock because no guarantee of instance identity
                if (httpsGetBinding == null) 
                {
                    httpsGetBinding = CreateHttpsGetBinding(); 
                } 

                return httpsGetBinding; 
            }
        }

        internal static Binding Tcp 
        {
            get 
            { 
                // don't need to lock because no guarantee of instance identity
                if (tcpBinding == null) 
                {
                    tcpBinding = CreateTcpBinding();
                }
 
                return tcpBinding;
            } 
        } 

        internal static Binding NamedPipe 
        {
            get
            {
                // don't need to lock because no guarantee of instance identity 
                if (pipeBinding == null)
                { 
                    pipeBinding = CreateNamedPipeBinding(); 
                }
 
                return pipeBinding;
            }
        }
 
        public static Binding CreateMexHttpBinding()
        { 
            return MetadataExchangeBindings.CreateHttpBinding(); 
        }
 
        public static Binding CreateMexHttpsBinding()
        {
            return MetadataExchangeBindings.CreateHttpsBinding();
        } 

        public static Binding CreateMexTcpBinding() 
        { 
            return MetadataExchangeBindings.CreateTcpBinding();
        } 

        public static Binding CreateMexNamedPipeBinding()
        {
            return MetadataExchangeBindings.CreateNamedPipeBinding(); 
        }
 
        internal static Binding GetBindingForScheme(string scheme) 
        {
            Binding binding = null; 
            TryGetBindingForScheme(scheme, out binding);
            return binding;
        }
 
        internal static bool TryGetBindingForScheme(string scheme, out Binding binding)
        { 
            if (String.Compare(scheme, "http", StringComparison.OrdinalIgnoreCase) == 0) 
            {
                binding = Http; 
            }
            else if (String.Compare(scheme, "https", StringComparison.OrdinalIgnoreCase) == 0)
            {
                binding = Https; 
            }
            else if (String.Compare(scheme, "net.tcp", StringComparison.OrdinalIgnoreCase) == 0) 
            { 
                binding = Tcp;
            } 
            else if (String.Compare(scheme, "net.pipe", StringComparison.OrdinalIgnoreCase) == 0)
            {
                binding = NamedPipe;
            } 
            else
            { 
                binding = null; 
            }
 
            return binding != null;
        }

        static WSHttpBinding CreateHttpBinding() 
        {
            WSHttpBinding binding = new WSHttpBinding(SecurityMode.None, /* reliableSessionEnabled */ false); 
            binding.Name = MetadataStrings.MetadataExchangeStrings.HttpBindingName; 
            binding.Namespace = MetadataStrings.MetadataExchangeStrings.BindingNamespace;
            return binding; 
        }

        static WSHttpBinding CreateHttpsBinding()
        { 
            WSHttpBinding binding = new WSHttpBinding(
                new WSHttpSecurity(SecurityMode.Transport, new HttpTransportSecurity(), new NonDualMessageSecurityOverHttp()), /* reliableSessionEnabled */ false); 
            binding.Name = MetadataStrings.MetadataExchangeStrings.HttpsBindingName; 
            binding.Namespace = MetadataStrings.MetadataExchangeStrings.BindingNamespace;
 
            return binding;
        }

        static CustomBinding CreateHttpGetBinding() 
        {
            return CreateGetBinding(new HttpTransportBindingElement()); 
        } 

        static CustomBinding CreateHttpsGetBinding() 
        {
            return CreateGetBinding(new HttpsTransportBindingElement());
        }
 
        static CustomBinding CreateGetBinding(HttpTransportBindingElement httpTransport)
        { 
            TextMessageEncodingBindingElement textEncoding = new TextMessageEncodingBindingElement(); 
            textEncoding.MessageVersion = MessageVersion.None;
            httpTransport.Method = "GET"; 
            httpTransport.InheritBaseAddressSettings = true;
            return new CustomBinding(textEncoding, httpTransport);
        }
 
        static CustomBinding CreateTcpBinding()
        { 
            CustomBinding binding = new CustomBinding(MetadataStrings.MetadataExchangeStrings.TcpBindingName, MetadataStrings.MetadataExchangeStrings.BindingNamespace); 
            TcpTransportBindingElement tcpTransport = new TcpTransportBindingElement();
            binding.Elements.Add(tcpTransport); 
            return binding;
        }

        static CustomBinding CreateNamedPipeBinding() 
        {
            CustomBinding binding = new CustomBinding(MetadataStrings.MetadataExchangeStrings.NamedPipeBindingName, MetadataStrings.MetadataExchangeStrings.BindingNamespace); 
            NamedPipeTransportBindingElement pipeTransport = new NamedPipeTransportBindingElement(); 
            binding.Elements.Add(pipeTransport);
            return binding; 
        }

        internal static bool IsSchemeSupported(string scheme)
        { 
            Binding binding;
            return TryGetBindingForScheme(scheme, out binding); 
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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MetadataExchangeBindings.cs source code in C# .NET

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