private async ValueTask <IReadOnlyList <TenantSliceGroup <TDoc, TId> > > groupByConjoinedTenancy(IQuerySession querySession, List <IEvent> events)
{
var byTenant = events.GroupBy(x => x.TenantId);
var groupTasks = byTenant.Select(async tGroup =>
{
var tenant = new Tenant(tGroup.Key, querySession.Database);
var tenantSession = querySession.ForTenant(tGroup.Key);
var group = new TenantSliceGroup <TDoc, TId>(tenant);
await GroupEvents(@group, tenantSession, tGroup.ToList()).ConfigureAwait(false);
return(@group);
});
var list = new List <TenantSliceGroup <TDoc, TId> >();
foreach (var groupTask in groupTasks)
{
list.Add(await groupTask.ConfigureAwait(false));
}
return(list);
}
public async ValueTask <IReadOnlyList <TenantSliceGroup <TDoc, TId> > > SliceAsyncEvents(IQuerySession querySession, List <IEvent> events)
{
foreach (var fanOutRule in _beforeGroupingFanoutRules)
{
fanOutRule.Apply(events);
}
if (_groupByTenant)
{
var byTenant = events.GroupBy(x => x.TenantId);
var groupTasks = byTenant.Select(async tGroup =>
{
var tenant = new Tenant(tGroup.Key, querySession.Database);
return(await groupSingleTenant(tenant, querySession.ForTenant(tGroup.Key), tGroup.ToList()).ConfigureAwait(false));
});
var list = new List <TenantSliceGroup <TDoc, TId> >();
foreach (var groupTask in groupTasks)
{
list.Add(await groupTask.ConfigureAwait(false));
}
return(list);
}
// This path is for *NOT* conjoined multi-tenanted projections, but we have to respect per-database tenancy
var group = await groupSingleTenant(new Tenant(Tenancy.DefaultTenantId, querySession.Database), querySession, events).ConfigureAwait(false);
return(new List <TenantSliceGroup <TDoc, TId> > {
group
});
}
async ValueTask <IReadOnlyList <TenantSliceGroup <TDoc, TId> > > IEventSlicer <TDoc, TId> .SliceAsyncEvents(
IQuerySession querySession,
List <IEvent> events, ITenancy tenancy)
{
foreach (var fanOutRule in _beforeGroupingFanoutRules)
{
fanOutRule.Apply(events);
}
if (_groupByTenant)
{
var byTenant = events.GroupBy(x => x.TenantId);
var groupTasks = byTenant.Select(tGroup =>
{
var tenant = tenancy[tGroup.Key];
return(groupSingleTenant(tenant, querySession.ForTenant(tGroup.Key), tGroup.ToList()));
});
var list = new List <TenantSliceGroup <TDoc, TId> >();
foreach (var groupTask in groupTasks)
{
list.Add(await groupTask);
}
return(list);
}
var group = await groupSingleTenant(tenancy.Default, querySession, events);
return(new List <TenantSliceGroup <TDoc, TId> > {
group
});
}