/// <summary>
/// Configures the system to use SQL-backed command scheduling.
/// </summary>
/// <param name="configuration">The configuration.</param>
/// <returns>The updated configuration.</returns>
public static Configuration UseSqlCommandScheduling(
this Configuration configuration,
Action <ReadModelCatchup <CommandSchedulerDbContext> > configureCatchup = null)
{
var container = configuration.Container;
var scheduler = container.Resolve <SqlCommandScheduler>();
var subscription = container.Resolve <IEventBus>().Subscribe(scheduler);
configuration.RegisterForDisposal(subscription);
container.RegisterSingle(c => scheduler);
if (configureCatchup != null)
{
var catchup = new ReadModelCatchup <CommandSchedulerDbContext>(scheduler)
{
CreateReadModelDbContext = scheduler.CreateCommandSchedulerDbContext,
};
configureCatchup(catchup);
catchup.PollEventStore();
container.RegisterSingle(c => catchup);
configuration.RegisterForDisposal(catchup);
}
return(configuration);
}
/// <summary>
/// Polls the event store and passes events to <see cref="ReadModelCatchup{TDbContext}.Run" /> when new events are found.
/// </summary>
/// <typeparam name="TDbContext">The type of the database context used to access the read models.</typeparam>
/// <param name="readModelCatchup">The read model catchup instance to run.</param>
/// <param name="interval">The interval at which polling occurs.</param>
/// <param name="scheduler">The scheduler on which work is scheduled.</param>
public static ReadModelCatchup <TDbContext> PollEventStore <TDbContext>(
this ReadModelCatchup <TDbContext> readModelCatchup,
TimeSpan?interval = null,
IScheduler scheduler = null)
where TDbContext : DbContext
{
interval = interval ?? TimeSpan.FromSeconds(5);
scheduler = scheduler ?? Scheduler.Default;
return(readModelCatchup.PollEventStore(Observable.Interval(interval.Value, scheduler).Select(_ => Unit.Default)));
}
/// <summary>
/// Configures the system to use SQL-backed command scheduling.
/// </summary>
/// <param name="configuration">The configuration.</param>
/// <returns>The updated configuration.</returns>
public static Configuration UseSqlCommandScheduling(
this Configuration configuration,
Action <ReadModelCatchup <CommandSchedulerDbContext> > configureCatchup = null)
{
var container = configuration.Container;
container.AddFallbackToDefaultClock();
var scheduler = new SqlCommandScheduler(
configuration,
container.Resolve <Func <CommandSchedulerDbContext> >(),
container.Resolve <GetClockName>());
if (container.All(r => r.Key != typeof(SqlCommandScheduler)))
{
container.Register(c => scheduler)
.Register <ISchedulerClockTrigger>(c => scheduler)
.Register <ISchedulerClockRepository>(c => scheduler);
}
var subscription = container.Resolve <IEventBus>().Subscribe(scheduler);
configuration.RegisterForDisposal(subscription);
container.RegisterSingle(c => scheduler);
if (configureCatchup != null)
{
var catchup = new ReadModelCatchup <CommandSchedulerDbContext>(scheduler)
{
CreateReadModelDbContext = scheduler.CreateCommandSchedulerDbContext
};
configureCatchup(catchup);
catchup.PollEventStore();
container.RegisterSingle(c => catchup);
configuration.RegisterForDisposal(catchup);
}
configuration.IsUsingSqlCommandScheduling(true);
return(configuration);
}