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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.Activation
{
using System.Collections.ObjectModel;
using System.Diagnostics.CodeAnalysis;
using System.IO;
using System.Reflection;
using System.Runtime;
using System.Runtime.CompilerServices;
[TypeForwardedFrom("System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089")]
public class ServiceHostFactory : ServiceHostFactoryBase
{
Collection<string> referencedAssemblies;
public ServiceHostFactory()
{
this.referencedAssemblies = new Collection<string>();
}
internal void AddAssemblyReference(string assemblyName)
{
this.referencedAssemblies.Add(assemblyName);
}
[SuppressMessage(FxCop.Category.ReliabilityBasic,
"Reliability104:CaughtAndHandledExceptionsRule",
Justification = "When using the Asp.Net 'WebSite-model' this exception can happen due to dynamic compilation. This isn't harmful for WCF as long as the ServiceType can be found in another assembly.")]
public override ServiceHostBase CreateServiceHost(string constructorString, Uri[] baseAddresses)
{
if (!AspNetEnvironment.Enabled)
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.Hosting_ProcessNotExecutingUnderHostedContext("ServiceHostFactory.CreateServiceHost")));
}
if (string.IsNullOrEmpty(constructorString))
{
throw FxTrace.Exception.Argument("constructorString", SR.Hosting_ServiceTypeNotProvided);
}
Type type = Type.GetType(constructorString, false);
if (type == null)
{
//config service activation scenario
if (this.referencedAssemblies.Count == 0)
{
AspNetEnvironment.Current.EnsureAllReferencedAssemblyLoaded();
}
foreach (string assemblyName in this.referencedAssemblies)
{
Assembly assembly = null;
try
{
assembly = Assembly.Load(assemblyName);
}
catch (FileNotFoundException fileNotFoundException)
{
// When using the Asp.Net "WebSite-model" this exception can happen due to dynamic compilation
// This isn't harmful for WCF as long as the ServiceType can be found in another assembly...
if (FxTrace.ShouldTraceInformation)
{
FxTrace.Exception.AsInformation(fileNotFoundException);
}
}
if (assembly != null)
{
type = assembly.GetType(constructorString, false);
if (type != null)
{
break;
}
}
}
}
if (type == null)
{
Assembly[] assemblies = AppDomain.CurrentDomain.GetAssemblies();
for (int i = 0; i < assemblies.Length; i++)
{
type = assemblies[i].GetType(constructorString, false);
if (type != null)
{
break;
}
}
}
if (type == null)
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.Hosting_ServiceTypeNotResolved(constructorString)));
}
return CreateServiceHost(type, baseAddresses);
}
protected virtual ServiceHost CreateServiceHost(Type serviceType, Uri[] baseAddresses)
{
return new ServiceHost(serviceType, baseAddresses);
}
}
}
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