public RegistrationStateReader(string connectionString)
{
DbContextOptionsBuilder optionsBuilder = new DbContextOptionsBuilder();
optionsBuilder.UseSqlServer(@"Data Source=(LocalDB)\MSSQLLocalDB;Initial Catalog=RegistrationDemo;Integrated Security=True");
_sagaDbContext = new SagaDbContext <RegistrationStateInstance, RegistrationStateInstanceMap>(optionsBuilder.Options);
}
public Locating_an_existing_ef_saga()
{
// add new migration by calling
// dotnet ef migrations add --context "SagaDbContext``2" Init -v
var contextFactory = new ContextFactory();
using (SagaDbContext <SimpleSaga, SimpleSagaMap> context = contextFactory.CreateDbContext(Array.Empty <string>()))
{
context.Database.Migrate();
}
_sagaDbContextFactory = () => contextFactory.CreateDbContext(Array.Empty <string>());
_sagaRepository = new Lazy <ISagaRepository <SimpleSaga> >(() =>
new EntityFrameworkSagaRepository <SimpleSaga>(_sagaDbContextFactory));
}
public Using_ef_connection_resiliency()
{
// add new migration by calling
// dotnet ef migrations add --context "SagaDbContext``2" Init -v
var contextFactory = new ContextFactoryWithResilienceStrategy();
using (SagaDbContext <SimpleSaga, SimpleSagaMap> context = contextFactory.CreateDbContext(Array.Empty <string>()))
{
context.Database.Migrate();
}
_sagaDbContextFactory = () => contextFactory.CreateDbContext(Array.Empty <string>());
_sagaRepository = new Lazy <ISagaRepository <SimpleSaga> >(() =>
EntityFrameworkSagaRepository <SimpleSaga> .CreatePessimistic(_sagaDbContextFactory));
}
public DbFixture()
{
var configuration = new ConfigurationBuilder()
.AddJsonFile("appsettings.json", optional: false, reloadOnChange: false)
.AddEnvironmentVariables()
.Build();
var connStr = configuration.GetConnectionString("sql");
if (string.IsNullOrWhiteSpace(connStr))
{
throw new ArgumentException("invalid connection string");
}
this.ConnectionString = string.Format(connStr, Guid.NewGuid());
var options = new DbContextOptionsBuilder <SagaDbContext>()
.UseSqlServer(this.ConnectionString)
.EnableSensitiveDataLogging()
.Options;
_dbContext = new SagaDbContext(options);
}
public OrderSagaHandler(ISagaCoordinator coordinator, SagaDbContext dbContext)
{
_coordinator = coordinator;
_dbContext = dbContext;
}
private static void Run()
{
ISagaRepository <RegistrationStateInstance> sagaRepository = new EntityFrameworkSagaRepository <RegistrationStateInstance>(SagaDbContextFactory);
IBusControl busControl = Bus.Factory.CreateUsingRabbitMq(cfg =>
{
IRabbitMqHost host = cfg.Host(new Uri("rabbitmq://localhost"), h =>
{
h.Username("guest");
h.Password("guest");
});
EndpointConvention.Map <IProcessRegistration>(new Uri("rabbitmq://localhost/registration.state.queue"));
cfg.ReceiveEndpoint(host, "registration.state.queue", endpointConfigurator =>
{
endpointConfigurator.PrefetchCount = 16;
IPartitioner partitioner = cfg.CreatePartitioner(8);
RegistrationStateMachine machine = new RegistrationStateMachine();
endpointConfigurator.StateMachineSaga(machine, sagaRepository, sagaConfigurator =>
{
sagaConfigurator.Message <IRegistrationReceived>(m => m.UsePartitioner(partitioner, p => p.Message.SubmissionId));
sagaConfigurator.Message <IRegistrationCompleted>(m => m.UsePartitioner(partitioner, p => p.Message.SubmissionId));
});
});
});
busControl.StartAsync();
ReadKey();
busControl.StopAsync();
DbContext SagaDbContextFactory()
{
DbContextOptionsBuilder optionsBuilder = new DbContextOptionsBuilder();
optionsBuilder.UseSqlServer(@"Data Source=(LocalDB)\MSSQLLocalDB;Initial Catalog=RegistrationDemo;Integrated Security=True");
SagaDbContext <RegistrationStateInstance, RegistrationStateInstanceMap> context = new SagaDbContext <RegistrationStateInstance, RegistrationStateInstanceMap>(optionsBuilder.Options);
context.Database.EnsureCreated();
return(context);
}
}
