public IEnumerable <IEvent> GetEvents(int lastEventNumber)
{
using (var ctx = new EventStoreContext())
{
var events = ctx.Events
.Where(e => e.Id > lastEventNumber)
.OrderBy(e => e.Id)
.ToList();
return(events.Select(DeserializeEvent).ToList());
}
}
public IEnumerable <IEvent> GetEvents <TAggregate>(int lastEventNumber)
{
using (var ctx = new EventStoreContext())
{
var events = ctx.Events
.Where(e => e.Category == typeof(TAggregate).Name)
.Where(e => e.Id > lastEventNumber)
.OrderBy(e => e.Id)
.ToList();
return(events.Select(DeserializeEvent).ToList());
}
}
public IEnumerable <ICommand> DeQueueCommands(string queueName)
{
using (var transaction = new TransactionScope())
using (var ctx = new EventStoreContext())
{
var commands = ctx.Commands
.Where(c => c.QueueName == queueName)
.OrderBy(c => c.Id)
.ToList();
ctx.Commands.RemoveRange(commands);
ctx.SaveChanges();
transaction.Complete();
return(commands.Select(DeserializeCommand).ToList());
}
}
public void DispatchCommands(string queueName, IEnumerable <ICommand> commands)
{
using (var ctx = new EventStoreContext())
{
foreach (var cmd in commands)
{
ctx.Commands.Add(new CommandEntity
{
AggregateId = cmd.AggregateId,
CausationId = cmd.Metadata.CausationId,
CommandId = cmd.Metadata.CommandId,
CommandPayload = JsonConvert.SerializeObject(cmd, JsonConversionSettings.SerializerSettings),
CorrelationId = cmd.Metadata.CorrelationId,
QueueName = queueName
});
}
ctx.SaveChanges();
}
}
public void CommitEvents <TAggregate>(IEnumerable <IEvent> events)
{
using (var ctx = new EventStoreContext())
{
foreach (var evt in events)
{
ctx.Events.Add(new EventEntity
{
AggregateId = evt.AggregateId,
Category = typeof(TAggregate).Name,
CausationId = evt.Metadata.CausationId,
CorrelationId = evt.Metadata.CorrelationId,
EventId = evt.Metadata.EventId,
EventPayload = JsonConvert.SerializeObject(evt, JsonConversionSettings.SerializerSettings)
});
}
ctx.SaveChanges();
}
}