Binding.cs source code in C# .NET

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

namespace System.ServiceModel.Channels 
{
    using System; 
    using System.ServiceModel; 
    using System.ServiceModel.Description;
    using System.Collections.Generic; 
    using System.Collections.ObjectModel;
    using System.Net.Security;
    using System.ServiceModel.Channels;
 
    public abstract class Binding : IDefaultCommunicationTimeouts
    { 
        TimeSpan closeTimeout = ServiceDefaults.CloseTimeout; 
        string name;
        string namespaceIdentifier; 
        TimeSpan openTimeout = ServiceDefaults.OpenTimeout;
        TimeSpan receiveTimeout = ServiceDefaults.ReceiveTimeout;
        TimeSpan sendTimeout = ServiceDefaults.SendTimeout;
        internal const string DefaultNamespace = NamingHelper.DefaultNamespace; 

        protected Binding() 
        { 
            this.name = null;
            this.namespaceIdentifier = DefaultNamespace; 
        }

        protected Binding(string name, string ns)
        { 
            if (string.IsNullOrEmpty(name))
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument("name", SR.GetString(SR.SFXBindingNameCannotBeNullOrEmpty)); 
            }
            if (ns == null) 
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("ns");
            }
 
            if (ns.Length > 0)
            { 
                NamingHelper.CheckUriParameter(ns, "ns"); 
            }
 
            this.name = name;
            this.namespaceIdentifier = ns;
        }
 
        public TimeSpan CloseTimeout
        { 
            get { return this.closeTimeout; } 
            set
            { 
                if (value < TimeSpan.Zero)
                {
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("value", value, SR.GetString(SR.SFxTimeoutOutOfRange0)));
                } 
                if (TimeoutHelper.IsTooLarge(value))
                { 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("value", value, SR.GetString(SR.SFxTimeoutOutOfRangeTooBig))); 
                }
 
                this.closeTimeout = value;
            }
        }
 
        public string Name
        { 
            get 
            {
                if (this.name == null) 
                    this.name = this.GetType().Name;

                return this.name;
            } 
            set
            { 
                if (string.IsNullOrEmpty(value)) 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument("value", SR.GetString(SR.SFXBindingNameCannotBeNullOrEmpty));
 
                this.name = value;
            }
        }
 
        public string Namespace
        { 
            get { return this.namespaceIdentifier; } 
            set
            { 
                if (value == null)
                {
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("value");
                } 

                if (value.Length > 0) 
                { 
                    NamingHelper.CheckUriProperty(value, "Namespace");
                } 
                this.namespaceIdentifier = value;
            }
        }
 
        public TimeSpan OpenTimeout
        { 
            get { return this.openTimeout; } 
            set
            { 
                if (value < TimeSpan.Zero)
                {
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("value", value, SR.GetString(SR.SFxTimeoutOutOfRange0)));
                } 
                if (TimeoutHelper.IsTooLarge(value))
                { 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("value", value, SR.GetString(SR.SFxTimeoutOutOfRangeTooBig))); 
                }
 
                this.openTimeout = value;
            }
        }
 
        public TimeSpan ReceiveTimeout
        { 
            get { return this.receiveTimeout; } 
            set
            { 
                if (value < TimeSpan.Zero)
                {
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("value", value, SR.GetString(SR.SFxTimeoutOutOfRange0)));
                } 
                if (TimeoutHelper.IsTooLarge(value))
                { 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("value", value, SR.GetString(SR.SFxTimeoutOutOfRangeTooBig))); 
                }
 
                this.receiveTimeout = value;
            }
        }
 
        public abstract string Scheme { get; }
 
        public MessageVersion MessageVersion 
        {
            get 
            {
                return this.GetProperty(new BindingParameterCollection());
            }
        } 

        public TimeSpan SendTimeout 
        { 
            get { return this.sendTimeout; }
            set 
            {
                if (value < TimeSpan.Zero)
                {
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("value", value, SR.GetString(SR.SFxTimeoutOutOfRange0))); 
                }
                if (TimeoutHelper.IsTooLarge(value)) 
                { 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("value", value, SR.GetString(SR.SFxTimeoutOutOfRangeTooBig)));
                } 

                this.sendTimeout = value;
            }
        } 

        public IChannelFactory BuildChannelFactory(params object[] parameters) 
        { 
            return this.BuildChannelFactory(new BindingParameterCollection(parameters));
        } 

        public virtual IChannelFactory BuildChannelFactory(BindingParameterCollection parameters)
        {
            EnsureInvariants(); 
            BindingContext context = new BindingContext(new CustomBinding(this), parameters);
            IChannelFactory channelFactory = context.BuildInnerChannelFactory(); 
            context.ValidateBindingElementsConsumed(); 
            this.ValidateSecurityCapabilities(channelFactory.GetProperty(), parameters);
 
            return channelFactory;
        }

        void ValidateSecurityCapabilities(ISecurityCapabilities runtimeSecurityCapabilities, BindingParameterCollection parameters) 
        {
            ISecurityCapabilities bindingSecurityCapabilities = this.GetProperty(parameters); 
 
            if (!SecurityCapabilities.IsEqual(bindingSecurityCapabilities, runtimeSecurityCapabilities))
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
                    new InvalidOperationException(SR.GetString(SR.SecurityCapabilitiesMismatched, this)));
            }
        } 

        public virtual IChannelListener BuildChannelListener(params object[] parameters) 
            where TChannel : class, IChannel 
        {
            return this.BuildChannelListener(new BindingParameterCollection(parameters)); 
        }

        public virtual IChannelListener BuildChannelListener(Uri listenUriBaseAddress, params object[] parameters)
            where TChannel : class, IChannel 
        {
            return this.BuildChannelListener(listenUriBaseAddress, new BindingParameterCollection(parameters)); 
        } 

        public virtual IChannelListener BuildChannelListener(Uri listenUriBaseAddress, string listenUriRelativeAddress, params object[] parameters) 
            where TChannel : class, IChannel
        {
            return this.BuildChannelListener(listenUriBaseAddress, listenUriRelativeAddress, new BindingParameterCollection(parameters));
        } 

        public virtual IChannelListener BuildChannelListener(Uri listenUriBaseAddress, string listenUriRelativeAddress, ListenUriMode listenUriMode, params object[] parameters) 
            where TChannel : class, IChannel 
        {
            return this.BuildChannelListener(listenUriBaseAddress, listenUriRelativeAddress, listenUriMode, new BindingParameterCollection(parameters)); 
        }

        public virtual IChannelListener BuildChannelListener(BindingParameterCollection parameters)
            where TChannel : class, IChannel 
        {
            UriBuilder listenUriBuilder = new UriBuilder(this.Scheme, DnsCache.MachineName); 
            return this.BuildChannelListener(listenUriBuilder.Uri, String.Empty, ListenUriMode.Unique, parameters); 
        }
 
        public virtual IChannelListener BuildChannelListener(Uri listenUriBaseAddress, BindingParameterCollection parameters)
            where TChannel : class, IChannel
        {
            return this.BuildChannelListener(listenUriBaseAddress, String.Empty, ListenUriMode.Explicit, parameters); 
        }
 
        public virtual IChannelListener BuildChannelListener(Uri listenUriBaseAddress, string listenUriRelativeAddress, BindingParameterCollection parameters) 
            where TChannel : class, IChannel
        { 
            return this.BuildChannelListener(listenUriBaseAddress, listenUriRelativeAddress, ListenUriMode.Explicit, parameters);
        }

        public virtual IChannelListener BuildChannelListener(Uri listenUriBaseAddress, string listenUriRelativeAddress, ListenUriMode listenUriMode, BindingParameterCollection parameters) 
            where TChannel : class, IChannel
        { 
            EnsureInvariants(); 
            BindingContext context = new BindingContext(new CustomBinding(this), parameters, listenUriBaseAddress, listenUriRelativeAddress, listenUriMode);
            IChannelListener channelListener = context.BuildInnerChannelListener(); 
            context.ValidateBindingElementsConsumed();
            this.ValidateSecurityCapabilities(channelListener.GetProperty(), parameters);

            return channelListener; 
        }
 
        public bool CanBuildChannelFactory(params object[] parameters) 
        {
            return this.CanBuildChannelFactory(new BindingParameterCollection(parameters)); 
        }

        public virtual bool CanBuildChannelFactory(BindingParameterCollection parameters)
        { 
            BindingContext context = new BindingContext(new CustomBinding(this), parameters);
            return context.CanBuildInnerChannelFactory(); 
        } 

        public bool CanBuildChannelListener(params object[] parameters) where TChannel : class, IChannel 
        {
            return this.CanBuildChannelListener(new BindingParameterCollection(parameters));
        }
 
        public virtual bool CanBuildChannelListener(BindingParameterCollection parameters) where TChannel : class, IChannel
        { 
            BindingContext context = new BindingContext(new CustomBinding(this), parameters); 
            return context.CanBuildInnerChannelListener();
        } 

        // the elements should NOT reference internal elements used by the Binding
        public abstract BindingElementCollection CreateBindingElements();
 
        public T GetProperty(BindingParameterCollection parameters)
            where T : class 
        { 
            BindingContext context = new BindingContext(new CustomBinding(this), parameters);
            return context.GetInnerProperty(); 
        }

        void EnsureInvariants()
        { 
            EnsureInvariants(null);
        } 
 
        internal void EnsureInvariants(string contractName)
        { 
            BindingElementCollection elements = this.CreateBindingElements();
            TransportBindingElement transport = null;
            int index;
            for (index = 0; index < elements.Count; index++) 
            {
                transport = elements[index] as TransportBindingElement; 
                if (transport != null) 
                    break;
            } 

            if (transport == null)
            {
                if (contractName == null) 
                {
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException( 
                        SR.GetString(SR.CustomBindingRequiresTransport, this.Name))); 
                }
                else 
                {
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(
                        SR.GetString(SR.SFxCustomBindingNeedsTransport1, contractName)));
                } 
            }
            if (index != elements.Count - 1) 
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(
                    SR.GetString(SR.TransportBindingElementMustBeLast, this.Name, transport.GetType().Name))); 
            }
            if (string.IsNullOrEmpty(transport.Scheme))
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException( 
                    SR.GetString(SR.InvalidBindingScheme, transport.GetType().Name)));
            } 
 
            if (this.MessageVersion == null)
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(
                    SR.GetString(SR.MessageVersionMissingFromBinding, this.Name)));
            }
        } 

        internal void CopyTimeouts(IDefaultCommunicationTimeouts source) 
        { 
            this.CloseTimeout = source.CloseTimeout;
            this.OpenTimeout = source.OpenTimeout; 
            this.ReceiveTimeout = source.ReceiveTimeout;
            this.SendTimeout = source.SendTimeout;
        }
    } 
}
 

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