ServiceDescription.cs source code in C# .NET

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

namespace System.ServiceModel.Description 
{
    using System.Collections.Generic; 
    using System.ServiceModel; 
    using System.ServiceModel.Activation;
    using System.Collections.ObjectModel; 
    using System.Runtime.Serialization;
    using System.Reflection;
    using System.Diagnostics;
    using System.Security; 
    using System.Security.Permissions;
 
    [DebuggerDisplay("ServiceType={serviceType}")] 
    public class ServiceDescription
    { 
        KeyedByTypeCollection behaviors = new KeyedByTypeCollection();
        string configurationName;
        ServiceEndpointCollection endpoints = new ServiceEndpointCollection();
        Type serviceType; 
        XmlName serviceName;
        string serviceNamespace = NamingHelper.DefaultNamespace; 
 

        public ServiceDescription() 
        {
        }

        internal ServiceDescription(String serviceName) 
        {
            if (String.IsNullOrEmpty(serviceName)) 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("serviceName"); 

            this.Name = serviceName; 
        }

        public ServiceDescription(IEnumerable endpoints)
            : this() 
        {
            if (endpoints == null) 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("endpoints"); 

            foreach (ServiceEndpoint endpoint in endpoints) 
                this.endpoints.Add(endpoint);
        }

        public string Name 
        {
            get 
            { 
                if (serviceName != null)
                    return serviceName.EncodedName; 
                else if (ServiceType != null)
                    return NamingHelper.XmlName(ServiceType.Name);
                else
                    return NamingHelper.DefaultServiceName; 
            }
            set 
            { 
                if (string.IsNullOrEmpty(value))
                { 
                    serviceName = null;
                }
                else
                { 
                    // the XmlName ctor validate the value
                    serviceName = new XmlName(value, true /*isEncoded*/); 
                } 
            }
        } 

        public string Namespace
        {
            get 
            {
                return serviceNamespace; 
            } 
            set
            { 
                serviceNamespace = value;
            }
        }
 	 

        public KeyedByTypeCollection Behaviors 
        { 
            get { return this.behaviors; }
        } 

        public string ConfigurationName
        {
            get { return this.configurationName; } 
            set
            { 
                if (value == null) 
                {
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("value"); 
                }
                this.configurationName = value;
            }
        } 

        public ServiceEndpointCollection Endpoints 
        { 
            get { return this.endpoints; }
        } 

        public Type ServiceType
        {
            get { return this.serviceType; } 
            set { this.serviceType = value; }
        } 
 
        static void AddBehaviors(ServiceDescription serviceDescription)
        { 
            Type type = serviceDescription.ServiceType;

            System.ServiceModel.Description.TypeLoader.ApplyServiceInheritance>(
                type, serviceDescription.Behaviors, ServiceDescription.GetIServiceBehaviorAttributes); 

            ServiceBehaviorAttribute serviceBehavior = EnsureBehaviorAttribute(serviceDescription); 
 
            if (serviceBehavior.Name != null)
                serviceDescription.Name = new XmlName(serviceBehavior.Name).EncodedName; 
            if (serviceBehavior.Namespace != null)
                serviceDescription.Namespace = serviceBehavior.Namespace;

            if (String.IsNullOrEmpty(serviceBehavior.ConfigurationName)) 
            {
                serviceDescription.ConfigurationName = type.FullName; 
            } 
            else
            { 
                serviceDescription.ConfigurationName = serviceBehavior.ConfigurationName;
            }

            if (ServiceHostingEnvironment.IsHosted) 
            {
                AspNetCompatibilityRequirementsAttribute aspNetCompatibilityRequirements = serviceDescription.Behaviors.Find(); 
                if (aspNetCompatibilityRequirements == null) 
                {
                    aspNetCompatibilityRequirements = new AspNetCompatibilityRequirementsAttribute(); 
                    serviceDescription.Behaviors.Add(aspNetCompatibilityRequirements);
                }
            }
        } 

        internal static object CreateImplementation(Type serviceType) 
        { 
            ConstructorInfo constructor = serviceType.GetConstructor(
                TypeLoader.DefaultBindingFlags, null, Type.EmptyTypes, null); 
            if (constructor == null)
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(
                    SR.GetString(SR.SFxNoDefaultConstructor))); 
            }
            try 
            { 
                object implementation = constructor.Invoke(
                    TypeLoader.DefaultBindingFlags, null, null, System.Globalization.CultureInfo.InvariantCulture); 
                return implementation;
            }
            catch (MethodAccessException methodAccessException)
            { 
                SecurityException securityException = methodAccessException.InnerException as SecurityException;
                if (securityException != null && securityException.PermissionType.Equals(typeof(ReflectionPermission))) 
                { 
                    if (DiagnosticUtility.ShouldTraceWarning)
                    { 
                        DiagnosticUtility.ExceptionUtility.TraceHandledException(methodAccessException, TraceEventType.Warning);
                    }
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
                        new SecurityException(SR.GetString( 
                                SR.PartialTrustServiceCtorNotVisible,
                                serviceType.FullName))); 
                } 
                else
                { 
                    throw;
                }
            }
        } 

        static ServiceBehaviorAttribute EnsureBehaviorAttribute(ServiceDescription description) 
        { 
            ServiceBehaviorAttribute attr = description.Behaviors.Find();
 
            if (attr == null)
            {
                attr = new ServiceBehaviorAttribute();
                description.Behaviors.Insert(0, attr); 
            }
 
            return attr; 
        }
 
        // This method ensures that the description object graph is structurally sound and that none
        // of the fundamental SFx framework assumptions have been violated.
        internal void EnsureInvariants()
        { 
            for (int i = 0; i < this.Endpoints.Count; i++)
            { 
                ServiceEndpoint endpoint = this.Endpoints[i]; 
                if (endpoint == null)
                { 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.AChannelServiceEndpointIsNull0)));
                }
                endpoint.EnsureInvariants();
            } 
        }
 
        static void GetIServiceBehaviorAttributes(Type currentServiceType, KeyedByTypeCollection behaviors) 
        {
            foreach (IServiceBehavior behaviorAttribute in ServiceReflector.GetCustomAttributes(currentServiceType, typeof(IServiceBehavior))) 
            {
                behaviors.Add(behaviorAttribute);
            }
        } 

        public static ServiceDescription GetService(Type serviceType) 
        { 
            if (serviceType == null)
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("serviceType");
            }

            if (!serviceType.IsClass) 
            {
                throw new ArgumentException(SR.GetString(SR.SFxServiceHostNeedsClass)); 
            } 

            ServiceDescription description = new ServiceDescription(); 
            description.ServiceType = serviceType;

            AddBehaviors(description);
            SetupSingleton(description, null, false); 
            return description;
        } 
 
        public static ServiceDescription GetService(object serviceImplementation)
        { 
            if (serviceImplementation == null)
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("serviceImplementation");
            } 

            Type serviceType = serviceImplementation.GetType(); 
            ServiceDescription description = new ServiceDescription(); 
            description.ServiceType = serviceType;
 
            if (serviceImplementation is IServiceBehavior)
            {
                description.Behaviors.Add((IServiceBehavior)serviceImplementation);
            } 

            AddBehaviors(description); 
            SetupSingleton(description, serviceImplementation, true); 
            return description;
        } 

        static void SetupSingleton(ServiceDescription serviceDescription, object implementation, bool isWellKnown)
        {
            ServiceBehaviorAttribute serviceBehavior = EnsureBehaviorAttribute(serviceDescription); 
            Type type = serviceDescription.ServiceType;
            if ((implementation == null) && (serviceBehavior.InstanceContextMode == InstanceContextMode.Single)) 
            { 
                implementation = CreateImplementation(type);
            } 

            if (isWellKnown)
            {
                serviceBehavior.SetWellKnownSingleton(implementation); 
            }
            else if ((implementation != null) && (serviceBehavior.InstanceContextMode == InstanceContextMode.Single)) 
            { 
                serviceBehavior.SetHiddenSingleton(implementation);
            } 
        }
    }
}
 

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

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