ComPlusServiceLoader.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / ComIntegration / ComPlusServiceLoader.cs / 1 / ComPlusServiceLoader.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------
namespace System.ServiceModel.ComIntegration
{ 
    using System;
    using System.ServiceModel.Description; 
    using System.ServiceModel; 
    using System.ServiceModel.Activation;
    using System.Diagnostics; 
    using System.ServiceModel.Diagnostics;

    class ComPlusServiceLoader
    { 
        ServiceInfo info;
        ConfigLoader configLoader; 
        ComPlusTypeLoader typeLoader; 

        public ComPlusServiceLoader (ServiceInfo info) 
        {
            this.info = info;
            this.typeLoader = new ComPlusTypeLoader(info);
            this.configLoader = new ConfigLoader(typeLoader); 
        }
 
        public ServiceDescription Load(ServiceHostBase host) 
        {
            ServiceDescription service = new ServiceDescription(this.info.ServiceName); 

            // ServiceBehaviorAttribute needs to go first in the behaviors collection (before config stuff)
            AddBehaviors(service);
 
            this.configLoader.LoadServiceDescription(host, service, this.info.ServiceElement, host.LoadConfigurationSectionHelper);
 
            ValidateConfigInstanceSettings(service); 

            ComPlusServiceHostTrace.Trace(TraceEventType.Information, TraceCode.ComIntegrationServiceHostCreatedServiceEndpoint, 
                                SR.TraceCodeComIntegrationServiceHostCreatedServiceEndpoint,  this.info, service.Endpoints);

            return service;
        } 

 
        void AddBehaviors(ServiceDescription service) 
        {
            // The philosophy here is to respect settings from configuration 
            // At the moment, none of the settings we care about can be modified
            // through configuration. That may change in the future.
            // However, we never want to silently overwrite a user's configuration.
            // So we should either accept overrides or reject them, but never 
            // silently update them.
            // 
 
            ServiceBehaviorAttribute serviceBehavior = EnsureBehaviorAttribute(service);
 
            serviceBehavior.InstanceProvider = new ComPlusInstanceProvider(this.info);

            serviceBehavior.InstanceContextMode = InstanceContextMode.Single;
 
            // SHOULD: There is no reason to not allow concurrency at this level
            serviceBehavior.ConcurrencyMode = ConcurrencyMode.Multiple; 
            serviceBehavior.UseSynchronizationContext = false; 

            service.Behaviors.Add(new SecurityCookieModeValidator()); 

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

        ServiceBehaviorAttribute EnsureBehaviorAttribute(ServiceDescription service) 
        {
            ServiceBehaviorAttribute serviceBehavior; 
            if (service.Behaviors.Contains(typeof(ServiceBehaviorAttribute))) 
            {
                serviceBehavior = (ServiceBehaviorAttribute)service.Behaviors[typeof(ServiceBehaviorAttribute)]; 
            }
            else
            {
                serviceBehavior = new ServiceBehaviorAttribute(); 
                service.Behaviors.Insert(0, serviceBehavior);
            } 
            return serviceBehavior; 
        }
 
        void ValidateConfigInstanceSettings(ServiceDescription service)
        {
            ServiceBehaviorAttribute serviceBehavior = EnsureBehaviorAttribute(service);
 
            foreach (ServiceEndpoint endpoint in service.Endpoints)
            { 
                if (endpoint != null && !ServiceMetadataBehavior.IsMetadataEndpoint(service, endpoint)) 
                {
                    if (endpoint.Contract.SessionMode == SessionMode.Required) 
                    {
                        if (serviceBehavior.InstanceContextMode == InstanceContextMode.PerCall)
                            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(System.ServiceModel.ComIntegration.Error.InconsistentSessionRequirements());
 
                        serviceBehavior.InstanceContextMode = InstanceContextMode.PerSession;
                    } 
                    else 
                    {
                        if (serviceBehavior.InstanceContextMode == InstanceContextMode.PerSession) 
                            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(System.ServiceModel.ComIntegration.Error.InconsistentSessionRequirements());

                        serviceBehavior.InstanceContextMode = InstanceContextMode.PerCall;
                    } 
                }
            } 
            if (serviceBehavior.InstanceContextMode == InstanceContextMode.Single) 
                serviceBehavior.InstanceContextMode = InstanceContextMode.PerSession;
        } 
    }
}

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

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