In my company we are using SimpleInjector as our IoC framework and are now looking at using Rebus as a wrapper for sending messages via RabbitMq. I am looking for help in creating a working example. I have tried the following code:
using Rebus.Activation;
using Rebus.Config;
using Rebus.Handlers;
using Rebus.Pipeline;
using Rebus.RabbitMq;
using Rebus.SimpleInjector;
using SimpleInjector;
using System;
using System.Threading.Tasks;
namespace SearchType.ProjectionA
{
class Program
{
static void Main(string[] args)
{
var container = new Container();
container.Register<IContainerAdapter, SimpleInjectorContainerAdapter>();
container.Register<IHandleMessages<string>, Handler>();
var adapter = container.GetInstance<IContainerAdapter>();
var bus = Configure.With(adapter)
.Logging(l => l.ColoredConsole())
.Transport(t => t.UseRabbitMq("amqp://localhost", "simpleinjector_consumer"))
.Start();
bus.Subscribe<string>().Wait();
Console.WriteLine("Projection A listening - press ENTER to quit");
Console.ReadLine();
}
}
public class Handler : IHandleMessages<string>
{
public Task Handle(string message)
{
return Task.Run(() =>
{
Console.WriteLine(string.Format("{0} - {1}", MessageContext.Current.Message.Headers["rbs2-corr-id"], message));
});
}
}
}
When i try and run this console application I am getting the following error:
System.InvalidOperationException was unhandled
HResult=-2146233079
Message=The container can't be changed after the first call to GetInstance, GetAllInstances and Verify. The following stack trace describes the location where the container was locked:
at SearchType.ProjectionA.Program.Main(String[] args) in C:\HRG\TravTech\Springboard\SearchType\SearchType.ProjectionA\Program.cs:line 34
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
Source=SimpleInjector
StackTrace:
at SimpleInjector.Container.ThrowWhenContainerIsLocked()
at SimpleInjector.Container.AddRegistration(Type serviceType, Registration registration)
at SimpleInjector.Container.RegisterSingleton[TService](TService instance)
at Rebus.SimpleInjector.SimpleInjectorContainerAdapter.SetBus(IBus bus)
at Rebus.Config.RebusConfigurer.Start()
at SearchType.ProjectionA.Program.Main(String[] args) in C:\HRG\TravTech\Springboard\SearchType\SearchType.ProjectionA\Program.cs:line 36
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:
Does anyone know what I can do to fix this? I don't want to have to declare all the dependencies myself.
Edit: thank you Steven for your reply. I have changed the code according to your answer and am now getting a different error.
System.InvalidOperationException was unhandled
HResult=-2146233079
Message=The configuration is invalid. Creating the instance for type IMessageContext failed. The registered delegate for type IMessageContext threw an exception. Attempted to inject the current message context from MessageContext.Current, but it was null! Did you attempt to resolve IMessageContext from outside of a Rebus message handler?
Source=SimpleInjector
StackTrace:
at SimpleInjector.InstanceProducer.VerifyInstanceCreation()
at SimpleInjector.Container.VerifyInstanceCreation(InstanceProducer[] producersToVerify)
at SimpleInjector.Container.VerifyThatAllRootObjectsCanBeCreated()
at SimpleInjector.Container.VerifyInternal(Boolean suppressLifestyleMismatchVerification)
at SimpleInjector.Container.Verify()
at SearchType.ProjectionA.Program.Main(String[] args) in C:\HRG\TravTech\Springboard\SearchType\SearchType.ProjectionA\Program.cs:line 27
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:
HResult=-2146233088
Message=The registered delegate for type IMessageContext threw an exception. Attempted to inject the current message context from MessageContext.Current, but it was null! Did you attempt to resolve IMessageContext from outside of a Rebus message handler?
Source=SimpleInjector
StackTrace:
at SimpleInjector.InstanceProducer.GetInstance()
at SimpleInjector.InstanceProducer.VerifyInstanceCreation()
InnerException:
HResult=-2146233079
Message=Attempted to inject the current message context from MessageContext.Current, but it was null! Did you attempt to resolve IMessageContext from outside of a Rebus message handler?
Source=Rebus.SimpleInjector
StackTrace:
at Rebus.SimpleInjector.SimpleInjectorContainerAdapter.<SetBus>b__7()
at lambda_method(Closure )
at SimpleInjector.InstanceProducer.BuildAndReplaceInstanceCreatorAndCreateFirstInstance()
at SimpleInjector.InstanceProducer.GetInstance()
InnerException:
The error indicates that IMessageContext can only be instantiated inside a message handler. Is there a way to ignore certain errors?
I think the exception is clear; Simple Injector prevents registration after you already resolved. Reasons for doing this are described here.
The solution is to manually create the SimpleInjectorContainerAdapter and prevent relying on the container's auto-wiring capability for the adapter:
var container = new Container();
IContainerAdapter adapter = new SimpleInjectorContainerAdapter(container);
container.Register<IHandleMessages<string>, Handler>();
var bus = Configure.With(adapter)
.Logging(l => l.ColoredConsole())
.Transport(t => t.UseRabbitMq("amqp://localhost", "simpleinjector_consumer"))
.Start();
container.Verify();
Related
I have a simple servicestack self-host app which aside of everything else tries to use authentication. In AppHost constructor i make a call
Plugins.Add(new AuthFeature(() => new AuthUserSession(),
new IAuthProvider[]
{
new RoomsAuthProvider(),
}));
but i always get null reference exception during that call. I've tried separating the calls - create the auth feature in one string, add in another - AuthFeature creation fails. I've also tried calling
Container.Register(new MemoryCacheClient());
This changes nothing. Any ideas are welcome.Stacktrace attached
ServiceStack.AuthFeature.<.ctor>b__a(String s)
ServiceStack.AuthFeature..ctor(Func`1 sessionFactory, IAuthProvider[] authProviders, String htmlRedirect)
CoreServer.Program.AppHost..ctor() в C:\Users\Sorrow\documents\visual studio 2015\Projects\RoomsServicestack\CoreServer\Program.cs
CoreServer.Program.Main(String[] args) в C:\Users\Sorrow\documents\visual studio 2015\Projects\RoomsServicestack\CoreServer\Program
System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
System.Threading.ThreadHelper.ThreadStart()
In AppHost constructor i make a call
Don't register any plugins inside the AppHost constructor, all configuration should happen within AppHost.Configure(), e.g:
public override void Configure(Container container)
{
Plugins.Add(new AuthFeature(() => new AuthUserSession(),
new IAuthProvider[] {
new RoomsAuthProvider(),
}));
}
This is unrelated to your issue, but if you want to register a Caching Provider you need to register against the ICacheClient interface, e.g:
Container.Register<ICacheClient>(new MemoryCacheClient());
Which will let you resolve the dependency via the ICacheClient interface:
var cache = Container.Resolve<ICacheClient>();
This is needed because any built-in Service that uses caching resolves the registered ICacheClient dependency.
I have some code that's been working fine on Windows 7 but fails now that I've started using a Windows 8.1 dev box (see repro code below).
Is RSA different on Windows 8.1 vs. Windows 7?
using System.Security.Cryptography;
using System.Text;
namespace RsaBug
{
class Program
{
static void Main()
{
var modulus = Encoding.UTF8.GetBytes("rvco6d27bsw2fw5qx7okdcu5jahd1ifh22is76k5xyau3wjv7plo0rom66h2434tvm29cmq2ov6mbjo30bymb14j2dst5fzy7pd");
var exponent = Encoding.UTF8.GetBytes("1ekh");
using (var rsa = new RSACryptoServiceProvider())
{
//Get an instance of RSAParameters from ExportParameters function.
var rsaKeyInfo = rsa.ExportParameters(false);
//Set RSAKeyInfo to the public key values.
rsaKeyInfo.Modulus = modulus;
rsaKeyInfo.Exponent = exponent;
//Import key parameters into RSA.
rsa.ImportParameters(rsaKeyInfo); // on Windows 8.1, this throws
}
}
}
}
Here's the exception I get:
System.Security.Cryptography.CryptographicException was unhandled
_HResult=-2147024809
_message=The parameter is incorrect.
HResult=-2147024809
IsTransient=false
Message=The parameter is incorrect.
Source=mscorlib
StackTrace:
at System.Security.Cryptography.CryptographicException.ThrowCryptographicException(Int32 hr)
at System.Security.Cryptography.Utils._ImportKey(SafeProvHandle hCSP, Int32 keyNumber, CspProviderFlags flags, Object cspObject, SafeKeyHandle& hKey)
at System.Security.Cryptography.RSACryptoServiceProvider.ImportParameters(RSAParameters parameters)
at RsaBug.Program.Main() in d:\sandbox\2015\RsaBug\RsaBug\Program.cs:line 24
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:
Based on the alphabet present it is likely that the modulus and exponent are base-36 encoded.
Whenever I try to run this code: (code shortened to keep the post short)
// Generate a random capital letter
char key = (char)(_random.Next(24) + 65);
// 50% make it lowercase
if (_random.Next(2) == 0)
{
key = Char.ToLower(key);
}
SendKeys.SendWait(key.ToString());
I get this error:
Unhandled Exception: System.ComponentModel.Win32Exception: The operation completed successfully
at System.Windows.Forms.SendKeys.SendInput(Byte[] oldKeyboardState, Queue previousEvents)
at System.Windows.Forms.SendKeys.Send(String keys, Control control, Boolean wait)
at System.Windows.Forms.SendKeys.SendWait(String keys)
at DrunkPC.Program.DrunkKeyboardThread() in c:\Users\SPC\Documents\Visual Studio 2013\Projects\DrunkPC\Program.cs:line 91
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
Line 91 is:
SendKeys.SendWait(key.toString());
I am using Fluent Migrator 1.2.1
and i am getting exception while i am trying to create synonym
Object reference not set to an instance of an object.
StackTrace :
at FluentMigrator.Builders.Execute.ExecuteExpressionRoot.Sql(String sqlStatement)
at Tavisca.Catapult.Database.Rates.Migrations._004TagsAtProductLevel.Up() in d:\Projects\IMS\Git Source\tavisca-catapult-databases\Tavisca.Catapult.Database.Migrations\Tavisca.Catapult.Database.Rates\Migrations\004TagsAtProductLevel.cs:line 27
at Tavisca.Catapult.Database.Migrator.Program.Main(String[] args) in d:\Projects\IMS\Git Source\tavisca-catapult-databases\Tavisca.Catapult.Database.Migrations\Tavisca.Catapult.Database.Migrator\Program.cs:line 17
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
migration code is as follows
var contentDbConnectionString =
ConfigurationManager.ConnectionStrings["DBContent"].ConnectionString;
var ratesDbConnectionString =
ConfigurationManager.ConnectionStrings["DBRate"].ConnectionString;
var contentDbConnectionStringBuilder = new SqlConnectionStringBuilder(contentDbConnectionString);
var sqlConnectionBuilder = new SqlConnectionStringBuilder(ratesDbConnectionString);
var command = "CREATE SYNONYM [dbo].[Table1] FOR [" + sqlConnectionBuilder.DataSource + "].[" + contentDbConnectionStringBuilder.InitialCatalog + "].[dbo].[Table1];" +
"CREATE SYNONYM [dbo].[Table2] FOR [" + sqlConnectionBuilder.DataSource + "].["+ contentDbConnectionStringBuilder.InitialCatalog + "].[dbo].[Table2];";
Execute.Sql(command); // Exception will come here.
same script runs perfectly fine in query analyzer and synonym works too.
My library is using isolated storage but only does so on demand. So I'm using Lazy<T>.
However, this throws:
System.IO.IsolatedStorage.IsolatedStorageException "Unable to determine granted permission for assembly."
Does Lazy do something weird with threads that confuses isolated storage initialization?
Sample code:
using System;
using System.IO.IsolatedStorage;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
var thisWorks = IsolatedStorageFile.GetMachineStoreForAssembly();
thisWorks.Dispose();
var lazyStorage = new Lazy<IsolatedStorageFile>(IsolatedStorageFile.GetMachineStoreForAssembly);
var thisFails = lazyStorage.Value;
thisFails.Dispose();
}
}
}
Full stack trace:
System.IO.IsolatedStorage.IsolatedStorageException was unhandled
Message=Unable to determine granted permission for assembly.
Source=mscorlib
StackTrace:
Server stack trace:
at System.IO.IsolatedStorage.IsolatedStorage.InitStore(IsolatedStorageScope scope, Type domainEvidenceType, Type assemblyEvidenceType)
at System.IO.IsolatedStorage.IsolatedStorageFile.GetMachineStoreForAssembly()
at System.Lazy`1.CreateValue()
Exception rethrown at [0]:
at System.IO.IsolatedStorage.IsolatedStorage.InitStore(IsolatedStorageScope scope, Type domainEvidenceType, Type assemblyEvidenceType)
at System.IO.IsolatedStorage.IsolatedStorageFile.GetMachineStoreForAssembly()
at System.Lazy`1.CreateValue()
at System.Lazy`1.LazyInitValue()
at System.Lazy`1.get_Value()
at ConsoleApplication1.Program.Main(String[] args) in C:\Users\Andrew Davey\AppData\Local\Temporary Projects\ConsoleApplication1\Program.cs:line 19
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:
Looks like it's because you're passing in a MethodGroup (rather than a delegate/lambda directly), and it's unable to figure out where the call originally came from. If you switch it to this:
var lazyStorage = new Lazy<IsolatedStorageFile>(() => IsolatedStorageFile.GetMachineStoreForAssembly());
It should work ok.