My saga below is not handling the ValidateRegistration and ValidateRegistration commands. I see the "Could not find a saga for the message type Registrations.Messages.ValidateRegistration with id ..." message.
Is my configuration to find saga not correct? Please help!
Thanks
PS: I am using the generic host in the registration process and I am using NServiceBus.Lite profile.
public class EndpointConfig : IConfigureThisEndpoint, AsA_Publisher, IWantCustomInitialization
{
#region Implementation of IWantCustomInitialization
public void Init()
{
var kernel = new StandardKernel();
kernel.Load(new BackendModule());
//Configure.Instance.Configurer.ConfigureProperty<RegistrationSaga>(x => x.Factory, kernel.Get<IAggregateRootFactory>());
Configure.With().NinjectBuilder(kernel);
}
#endregion
}
public class RegistrationSagaData : IContainSagaData
{
#region Implementation of ISagaEntity
public virtual Guid Id { get; set; }
public virtual string Originator { get; set; }
public virtual string OriginalMessageId { get; set; }
public virtual RegistrationID RegistrationID { get; set; }
public virtual bool IsValidated { get; set; }
public virtual string RegistrationType { get; set; }
#endregion
}
public class RegistrationSaga : Saga<RegistrationSagaData>,
IAmStartedByMessages<StartRegistration>,
IHandleMessages<ValidateRegistration>,
IHandleMessages<CancelRegistration>
{
public RegistrationFactory Factory { get; set; }
public override void ConfigureHowToFindSaga()
{
ConfigureMapping<StartRegistration>(data => data.RegistrationID, registration => registration.ID);
ConfigureMapping<ValidateRegistration>(data => data.RegistrationID, registration => registration.ID);
ConfigureMapping<CancelRegistration>(data => data.RegistrationID, registration => registration.ID);
}
#region Implementation of IMessageHandler<StartRegistration>
public void Handle(StartRegistration message)
{
Data.IsValidated = false;
Data.RegistrationType = message.RegistrationType;
Bus.SendLocal(new CreateRegistration
{
RegistrationType = message.RegistrationType,
ID = message.ID
});
Console.WriteLine("======> handled StartRegistration");
}
#endregion
#region Implementation of IMessageHandler<ValidateRegistration>
public void Handle(ValidateRegistration message)
{
MarkAsComplete();
Console.WriteLine("======> handled ValidateRegistration");
}
#endregion
#region Implementation of IMessageHandler<CancelRegistration>
public void Handle(CancelRegistration message)
{
Console.WriteLine("======> handled CancelRegistration");
MarkAsComplete();
}
#endregion
}
Your handler for StartRegistration is not adding RegistrationID to the Saga's Data. So your override of ConfigureHowToFindSaga is mapped on a property that's has no value when the other commands are handled.
Just today I heard that Ninject doesn't handle setter injection out of the box - try switching it over to constructor injection and see if that works.
Related
I'm trying to update an entity using entity framework but, everytime I try to do it, it raises an error saying that a nested entity the main class contains cannot be tracked.
These are my classes:
public abstract class BaseEntity
{
public int Id { get; set; }
}
public class Dashboard : BaseEntity
{
public int Order { get; set; }
public string Title { get; set; }
public bool Enabled { get; set; }
public virtual ICollection<Submenu> Submenu { get; set; }
}
public class Submenu : BaseEntity
{
public int Order { get; set; }
public bool Enabled { get; set; }
public string Title { get; set; }
public string Image { get; set; }
public string Descriptions { get; set; }
public virtual ICollection<Action> Actions { get; set; }
public int DashboardId { get; set; }
public virtual Dashboard Dashboard { get; set; }
}
public class Action : BaseEntity
{
public string Type { get; set; }
public string Label { get; set; }
public string Url { get; set; }
public string Extension { get; set; }
public virtual Submenu Submenu { get; set; }
public int SubmenuId { get; set; }
}
The one I am using to update is Dashboard, which contains the rest of the classes.
I'm trying to do it using a generic service layer and a generic repository that are defined this way:
public class GenericService<T> : IGenericService<T> where T : BaseEntity
{
private readonly IBaseRepository<T> baseRepository;
public GenericService(IBaseRepository<T> baseRepository)
{
this.baseRepository = baseRepository;
}
public async Task Update(T entity, T attachedEntity)
{
await baseRepository.Update(entity, attachedEntity);
}
}
public class BaseRepository<T> : IBaseRepository<T> where T : BaseEntity
{
private readonly PortalContext dataContext;
private DbSet<T> DbSet { get; set; }
public BaseRepository(PortalContext context)
{
dataContext = context;
DbSet = dataContext.Set<T>();
}
public async Task Update(T entity, T attachedEntity)
{
dataContext.Entry(attachedEntity).State = EntityState.Detached;
DbSet.Attach(entity);
dataContext.Entry(entity).State = EntityState.Modified;
await dataContext.SaveChangesAsync();
}
}
And, at last but no least, this is the way I am configuring everything at Startup.cs
public void ConfigureServices(IServiceCollection services)
{
services.AddDbContext<PortalContext>(
options => options.UseSqlServer(Configuration.GetConnectionString("PortalContext"))
);
services.AddTransient(typeof(IGenericService<>), typeof(GenericService<>));
services.AddTransient(typeof(IBaseRepository<>), typeof(BaseRepository<>));
services.AddTransient<Func<string, ClaimsPrincipal, IRoleCheck>>((serviceProvider) =>
{
return (controllerName, claimsPrincipal) =>
new RoleCheck(serviceProvider.GetRequiredService<IGenericService<Dossier>>(),
serviceProvider.GetRequiredService<IGenericService<DossierTemplate>>(),
serviceProvider.GetRequiredService<IGenericService<Dashboard>>(),
controllerName, claimsPrincipal);
});
}
What the application first does is calling the RoleCheck class to retrieve and filter the required entities and, after that, the user can update them.
When I call the update function at the controller
public async Task<ActionResult<Dashboard>> Put(int id, [FromBody] Dashboard dashboard)
{
var currentDashboard = await service.Get(id);
if (currentDashboard == null)
{
return NotFound();
}
await service.Update(dashboard, currentDashboard);
return Ok();
}
I always receive the next error at the repository:
error
Is there something I am doing wrong? I have been stuck with this for a week now...
Thanks in advance and sorry for the long text, but I wanted it to be clear.
I could finally solve it by adding .AsNoTracking() at the Get() method of my repository:
public async Task<T> Get(int id, Func<IQueryable<T>, IIncludableQueryable<T, object>> includes)
{
IQueryable <T> query = DbSet.AsNoTracking();
if (includes != null)
{
query = includes(query);
}
return await query.FirstOrDefaultAsync(m => m.Id == id);
}
i'm trying to apply LAYERS Concept on demo project developed using mvc and entity framework both
Data Annotations : for validations in Data Access Layer and
Fluent API : for mapping and tables relations
Problem : DbContext didn't Create DB and there is a Runtime Exception :
The type 'Domain.DataLayer.Member' was not mapped. Check that the type has not been explicitly excluded by using the Ignore method or NotMappedAttribute data annotation. Verify that the type was defined as a class, is not primitive, nested or generic, and does not inherit from EntityObject.
Code : my solutions consists of :
1- class library (Domain.Classes project): where i wrote all of my classes
public class Member
{
public int Id { get; set; }
public string UserName { get; set; }
public string Password { get; set; }
public string FullName { get; set; }
}
2- DAL (Domain.DataLayer project): also another class library and i referenced domain.classes
namespace Domain.DataLayer.Repositories
{
[MetadataType(typeof(MemberMetadata))]
public partial class Member : Classes.Member , IValidatableObject
{
public Member()
{
Tasks = new HashSet<Task>();
History = new HashSet<Commint>();
}
public string ConfirmPassword { get; set; }
public HashSet<Task> Tasks { get; set; }
public HashSet<Commint> History { get; set; }
public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
{
var result = new List<ValidationResult>();
if (!string.Equals(Password,ConfirmPassword))
{
result.Add(new ValidationResult("mismatch pwsd", new[] {"ConfirmPassword" }));
}
return result;
}
}
}
and i used repository pattern :
public class MemberRepository : IRepository<Member>
{
public Task<IQueryable<Member>> GetAllEntities()
{
return Task<IQueryable<Member>>.Factory.StartNew(() => new Context().Members.AsQueryable());
}
}
3-BLL : for sake of simplicity : there is no Business Logic Layer
4- PL (Domain.Application MVC Project) : Member Controller :
public async Task<ActionResult> Index()
{
var members = await _repository.GetAllEntities();
return View(members);
}
Note : i depended on DbContext to create DB with name like : Domain.DataLayer.Context but it didn't craete DB so i created the DB and passed the connectionString through Context constructor like this :
namespace Domain.DataLayer
{
public class Context : DbContext
{
public Context(): base("InterviewDemo") // i tried also base("name=InterviewDemo")
{
}
public DbSet<Member> Members { get; set; }
public DbSet<Task> Tasks { get; set; }
public DbSet<Commint> TaskHistory { get; set; }
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
modelBuilder.Configurations.Add(new MemberConfig());
modelBuilder.Configurations.Add(new TaskConfig());
modelBuilder.Configurations.Add(new CommintConfig());
base.OnModelCreating(modelBuilder);
}
}
}
We're using RavenDB saga storage, but the saga data isn't being persisted after the starting message handler. I only see a handful of subscription documents in the database. I'm not sure what to check next. Ideas?
I have a saga:
public class BuyerWaitingOnDocumentsDistributor :
Saga<BuyerDocumentDistributorData>,
IAmStartedByMessages<DocumentVersionRequiresBuyerSignature>
{
public void Handle(DocumentVersionRequiresEmployeeSignature message)
{
Data.DocumentVersionId = message.DocumentVersionId.Value;
// Business logic goes here
}
// Other handlers & methods here
}
and saga entity:
public class BuyerDocumentDistributorData : IContainSagaData
{
public virtual Guid Id { get; set; }
public virtual string Originator { get; set; }
public virtual string OriginalMessageId { get; set; }
public virtual Guid DocumentVersionId { get; set; }
public virtual EmployeeId[] AuthorizedToSign { get; set; }
}
and saga finder:
public class BuyerWaitingOnDocumentsDistributorSagaFinder :
IFindSagas<BuyerDocumentDistributorData>.Using<DocumentVersionRequiresBuyerSignature>,
IFindSagas<BuyerDocumentDistributorData>.Using<DocumentVersionSignedByBuyer>,
IFindSagas<BuyerDocumentDistributorData>.Using<DocumentVersionNoLongerRequiresSignature>
{
private static readonly ILog Log = LogManager.GetLogger(typeof (BuyerWaitingOnDocumentsDistributorSagaFinder));
public ISagaPersister Persister { get; set; }
public BuyerDocumentDistributorData FindBy(DocumentVersionRequiresBuyerSignature message)
{
return Persister.Get<BuyerDocumentDistributorData>("DocumentVersionId", message.DocumentVersionId.Value);
}
public BuyerDocumentDistributorData FindBy(DocumentVersionSignedByBuyer message)
{
return Persister.Get<BuyerDocumentDistributorData>("DocumentVersionId", message.DocumentVersionId.Value);
}
public BuyerDocumentDistributorData FindBy(DocumentVersionNoLongerRequiresSignature message)
{
return Persister.Get<BuyerDocumentDistributorData>("DocumentVersionId", message.DocumentVersionId.Value);
}
}
I've also asked this question on the NServiceBus Yahoo group: http://tech.groups.yahoo.com/group/nservicebus/message/13265
You did not give your endpointconfig, so I'm unsure which container you are using.
We experience the same (saga not getting persisted) when using the NinjectBuilder. Using the DefaultBuilder works ok.
I wish to use Guid comb for my identity. I've added the EntityWithTypedId interface to my class which cause my table not to persist. ie using nh prof i can see the SaveOrUpdate method is not called. If i just use the Entity interface i can see it in the profiler.
public class Application : EntityWithTypedId<Guid>
{
public virtual string Name { get; set; }
public virtual string CreatedByUserName { get; set; }
public virtual string ModifiedByUserName { get; set; }
public virtual DateTime Created { get; set; }
public virtual DateTime Modified { get; set; }
}
public class ApplicationQuery : NHibernateQuery, IApplicationQuery
{
public void Update(Application application)
{
Session.SaveOrUpdate(application);
}
}
public class ApplicationMap : IAutoMappingOverride<Application>
{
public void Override(AutoMapping<Application> mapping)
{
mapping.Table("Application");
mapping.Id(x => x.Id, "Id").GeneratedBy.GuidComb();
}
}
Controller
[HttpPost]
[ActionName("Edit")]
public ActionResult EditPost(Application application)
{
var updateApplication = new Application();
updateApplication.Created = DateTime.Now;
updateApplication.Modified = DateTime.Now;
_applicationQuery.Update(updateApplication);
return RedirectToAction("Index");
}
I fixed this by updating my mapping to the following.
public void Override(AutoMapping<Application> mapping)
{
mapping.Table("Application");
mapping.Id(x => x.Id, "Id").GeneratedBy.GuidComb().UnsavedValue(Guid.Empty);
}
See here for more info.
http://s274.codeinspot.com/q/1486941
I'm learning WCF, and tried to make a small service that exposes a Project and its tasks (the standard Entity Framework hello world).
The class structure is the following:
public class Project
{
public int ProjectId { get; set; }
public string Name { get; set; }
public string Description { get; set; }
public DateTime CreationDate { get; set; }
public virtual ICollection<Task> Tasks { get; set; }
}
public class Task
{
public int TaskId { get; set; }
public string Title { get; set; }
public virtual Project RelatedProject { get; set; }
}
The DB context comes after:
public class ProjectContext : DbContext
{
public DbSet<Project> Projects { get; set; }
public DbSet<Task> Tasks { get; set; }
}
Finally, the service endpoint:
public IEnumerable<Project> getProjects()
{
ProjectContext p = new ProjectContext();
return p.Projects.AsEnumerable();
}
The problem is that this model will throw a System.ServiceModel.CommunicationException, but, If I remove the virtual properties from the model, It would work, but I would loose the entity framework links between Project and Task.
Anyone with a similar setup?
I banged my head against the wall several hours with this one. After extensive debugging, google gave the answer and I feel right to post it here since this was the first result I got in google.
Add this class on top of your [ServiceContract] interface declaration (typically IProjectService.cs
public class ApplyDataContractResolverAttribute : Attribute, IOperationBehavior
{
public void AddBindingParameters(OperationDescription description, BindingParameterCollection parameters)
{
}
public void ApplyClientBehavior(OperationDescription description, System.ServiceModel.Dispatcher.ClientOperation proxy)
{
var dataContractSerializerOperationBehavior =
description.Behaviors.Find<DataContractSerializerOperationBehavior>();
dataContractSerializerOperationBehavior.DataContractResolver =
new ProxyDataContractResolver();
}
public void ApplyDispatchBehavior(OperationDescription description, System.ServiceModel.Dispatcher.DispatchOperation dispatch)
{
var dataContractSerializerOperationBehavior =
description.Behaviors.Find<DataContractSerializerOperationBehavior>();
dataContractSerializerOperationBehavior.DataContractResolver =
new ProxyDataContractResolver();
}
public void Validate(OperationDescription description)
{
// Do validation.
}
}
Requirements are
using System.ServiceModel.Description;
using System.Data.Objects;
using System.ServiceModel.Channels;
Then under the [OperationContract] keyword add [ApplyDataContractResolver] keyword and you are set!
Big thanks to http://blog.rsuter.com/?p=286
For sending data trough WCF you should disable lazy loading (dataContext.ContextOptions.LazyLoadingEnabled = false;).
To be sure the data you want is loaded you need to use eager loading ( trough the Include method).
You need to change your function to:
public IEnumerable<Project> getProjects()
{
ProjectContext p = new ProjectContext();
p.ContextOptions.LazyLoadingEnabled = false;
return p.Projects.Include("Tasks").AsEnumerable();
}