public IEnumerable <IEvent> GetEvents(EventFilter filter)
{
var collection = GetMongoDbCollection(EventCollection);
var builder = Builders <EventPersistance> .Filter;
FilterDefinition <EventPersistance> mongofilter = null;
var filterDefinition = filter.GetFilter();
foreach (var type in filterDefinition.Types)
{
if (mongofilter == null)
{
mongofilter = builder.Eq("EventClass", type.Key.AssemblyQualifiedName);
//if (type.Value != null)
// mongofilter = builder.And(mongofilter, builder.Eq("AggregateId", type.Value.Value));
}
else
{
var innerFilter = builder.Eq("EventClass", type.Key.AssemblyQualifiedName);
//if (type.Value != null)
// innerFilter = builder.And(innerFilter, builder.Eq("AggregateId", type.Value.Value));
mongofilter = mongofilter | innerFilter;
}
}
if (filterDefinition.StreamIdentifier != null)
{
if (mongofilter == null)
{
mongofilter = builder.Eq("AggregateId", filterDefinition.StreamIdentifier.Value);
}
else
{
mongofilter = builder.And(mongofilter, builder.Eq("AggregateId", filterDefinition.StreamIdentifier.Value));
}
}
if (filterDefinition.Version != null)
{
if (filterDefinition.Version.VersionMode == VersionMode.Max)
{
if (mongofilter == null)
{
mongofilter = builder.Lte("version", filterDefinition.Version.Version);
}
else
{
mongofilter = builder.And(mongofilter, builder.Lte("version", filterDefinition.Version.Version));
}
}
else if (filterDefinition.Version.VersionMode == VersionMode.Min)
{
if (mongofilter == null)
{
mongofilter = builder.Gte("version", filterDefinition.Version.Version);
}
else
{
mongofilter = builder.And(mongofilter, builder.Gte("version", filterDefinition.Version.Version));
}
}
}
if (filterDefinition.Timestamp.HasValue)
{
if (mongofilter == null)
{
mongofilter = builder.Eq("Timestamp", filterDefinition.Timestamp.Value);
}
else
{
mongofilter = builder.And(mongofilter, builder.Lte("Timestamp", filterDefinition.Timestamp.Value));
}
}
var allRawEvents = collection
.Find(mongofilter)
.ToList();
var allEvents = allRawEvents
.Select((@event, i) =>
{
var evt = (Event)JsonConvert.DeserializeObject(@event.Data, typeResolver.Lookup(@event.EventClass));
evt.Timestamp = @event.Timestamp;
evt.Version = @event.Version;
return(evt);
})
.ToList();
return(allEvents);
}
