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//-----------------------------------------------------------------------------
// 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 (AspNetEnvironment.Enabled)
{
AspNetCompatibilityRequirementsAttribute aspNetCompatibilityRequirements = service.Behaviors.Find<AspNetCompatibilityRequirementsAttribute>();
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 && !endpoint.InternalIsSystemEndpoint(service))
{
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;
}
}
}
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