public static StreamHead ToStreamHead(this RavenStreamHead streamHead)
{
return(new StreamHead(
streamHead.StreamId,
streamHead.HeadRevision,
streamHead.SnapshotRevision));
}
private void SaveStreamHeadAsync(RavenStreamHead streamHead)
{
using (var scope = this.OpenCommandScope())
using (var session = this.store.OpenSession())
{
session.Advanced.UseOptimisticConcurrency = false;
session.Store(streamHead);
session.SaveChanges();
scope.Complete();
}
}
private void SaveStreamHead(RavenStreamHead streamHead)
{
if (this.consistentQueries)
{
this.SaveStreamHeadAsync(streamHead);
}
else
{
ThreadPool.QueueUserWorkItem(x => this.SaveStreamHeadAsync(streamHead), null);
}
}
private void SaveStreamHeadAsync(RavenStreamHead updated)
{
using (var scope = this.OpenCommandScope())
using (var session = this.store.OpenSession())
{
var current = session.Load <RavenStreamHead>(updated.StreamId.ToRavenStreamId()) ?? updated;
current.HeadRevision = updated.HeadRevision;
current.SnapshotRevision = updated.SnapshotRevision > 0
? updated.SnapshotRevision : current.SnapshotRevision;
session.Advanced.UseOptimisticConcurrency = false;
session.Store(current);
session.SaveChanges();
scope.Complete();
}
}
private void SaveStreamHeadAsync(RavenStreamHead updated)
{
this.TryRaven(() =>
{
using (var scope = this.OpenCommandScope())
using (var session = this.store.OpenSession())
{
var current = session.Load <RavenStreamHead>(updated.StreamId.ToRavenStreamId(this.partition)) ?? updated;
current.HeadRevision = updated.HeadRevision;
if (updated.SnapshotRevision > 0)
{
current.SnapshotRevision = updated.SnapshotRevision;
}
session.Advanced.UseOptimisticConcurrency = false;
session.Store(current);
session.SaveChanges();
scope.Complete(); // if this fails it's no big deal, stream heads can be updated whenever
}
return(true);
});
}
private void SaveStreamHead(RavenStreamHead streamHead)
{
ThreadPool.QueueUserWorkItem(x => this.SaveStreamHeadAsync(streamHead), null);
}
