void EnsureDbCreated()
{
using (var dbContext = new CommandServiceDataContext(dbContextOptions))
{
dbContext.Database.EnsureCreated();
}
}
async Task <Event> CreateEvent <T>(string productId, string eventType, T arg)
{
using (var dataContext = new CommandServiceDataContext(dbContextOptions))
{
var @event = new Event
{
Seq = Interlocked.Increment(ref seq),
Data = MakeEventData(productId, eventType, arg),
};
await dataContext.Events.AddAsync(@event);
await dataContext.SaveChangesAsync();
return(@event);
}
}
void OnReplayEvents(ReplayEvents replayEvents)
{
using (var dataContext = new CommandServiceDataContext(dbContextOptions))
{
var query = dataContext.Events
.Where(evt => evt.Seq >= replayEvents.From)
.AsQueryable();
if (replayEvents.To.HasValue)
{
query = query.Where(evt => evt.Seq <= replayEvents.To);
}
var events = query
.OrderBy(evt => evt.Seq)
.ToArray();
foreach (var @event in events)
{
var message = ConstructMessage <IMessage <object> >(@event);
messageQueue.Publish(message);
}
}
}