public async Task <Optional <EntityStreamData> > GetData(QueryConfig cfg, CancellationToken token)
{
using (var db = await _db.CreateAsync(token).ConfigureFalse())
{
var snapshot = Optional <Snapshot> .Empty;
if (!cfg.IgnoreSnapshots)
{
snapshot = await GetSnapshot(db, cfg).ConfigureFalse();
}
var vers = snapshot.IsEmpty ? 1:snapshot.Value.Version + 1;
token.ThrowIfCancellationRequested();
var all = await db.QueryAsAsync <Commit>(
q => q.From <Commit>()
.Where(d => d.TenantId == cfg.TenantId)
.AndIf(() => cfg.EntityId.HasValue, d => d.EntityId == cfg.EntityId.Value)
.And(d => d.Version >= Math.Max(cfg.VersionStart, vers))
.AndIf(() => cfg.DateEnd.HasValue, d => d.Timestamp <= cfg.DateEnd)
.AndIf(() => cfg.DateStart.HasValue, d => d.Timestamp >= cfg.DateStart)
.AndIf(() => cfg.VersionEnd.HasValue, d => d.Version <= cfg.VersionEnd)
.OrderBy(d => d.Version)
.SelectAll(useAsterisk: true)
, token).ConfigureFalse();
var rez = new EntityStreamData();
rez.LatestSnapshot = snapshot;
rez.Commits = all;
return(rez.ToOptional());
}
}
public Task <Optional <EntityStreamData> > GetData(QueryConfig cfg, CancellationToken token)
{
var esd = new EntityStreamData();
if (!cfg.IgnoreSnapshots)
{
esd.LatestSnapshot = GetSnapshot(cfg);
}
var ver = esd.LatestSnapshot.IsEmpty ? 1 : esd.LatestSnapshot.Value.Version + 1;
cfg.VersionStart = Math.Max(cfg.VersionStart, ver);
cfg.VersionEnd = cfg.VersionEnd ?? int.MaxValue;
lock (_sync)
{
esd.Commits =
_commits.Where(d => d.TenantId == cfg.TenantId).Where(d =>
{
if (cfg.EntityId.HasValue)
{
return(d.EntityId == cfg.EntityId);
}
return(true);
}).Where(d => d.Version >= cfg.VersionStart && d.Version <= cfg.VersionEnd)
.Where(d => d.Timestamp >= (cfg.DateStart ?? DateTimeOffset.MinValue))
.Where(d => d.Timestamp <= (cfg.DateEnd ?? DateTimeOffset.MaxValue))
.OrderBy(d => d.Version)
.ToArray();
}
return(Task.FromResult(esd.ToOptional()));
}