public void return_empty_slice_if_asked_to_read_from_end()
{
var read = _conn.ReadAllEventsForward(Position.End, 1, false);
Assert.That(read.IsEndOfStream, Is.True);
Assert.That(read.Events.Length, Is.EqualTo(0));
}
protected override void ReadEventsTill(IEventStoreConnection connection, bool resolveLinkTos,
UserCredentials userCredentials, long?lastCommitPosition, int?lastEventNumber)
{
bool done;
do
{
AllEventsSlice slice = connection.ReadAllEventsForward(_nextReadPosition, ReadBatchSize, resolveLinkTos, userCredentials);
foreach (var e in slice.Events)
{
if (e.OriginalPosition == null)
{
throw new Exception("Subscription event came up with no OriginalPosition.");
}
TryProcess(e);
}
_nextReadPosition = slice.NextPosition;
done = lastCommitPosition == null
? slice.IsEndOfStream
: slice.NextPosition >= new Position(lastCommitPosition.Value, lastCommitPosition.Value);
if (!done && slice.IsEndOfStream)
{
Thread.Sleep(1); // we are waiting for server to flush its data
}
} while (!done);
if (Verbose)
{
Log.Debug("Catch-up Subscription to {0}: finished reading events, nextReadPosition = {1}.",
IsSubscribedToAll ? "<all>" : StreamId, _nextReadPosition);
}
}
private void UpgradeProjectionPartitionCheckpoints()
{
Log("Looking for projection partition checkpoint streams");
var from = Position.Start;
_oldTfScanPercent = 0d;
var lastSlice = _connection.ReadAllEventsBackward(Position.End, 1, false, _credentials);
if (lastSlice.Events.Length == 0)
{
throw new Exception("Empty TF");
}
_lastTfPosition = lastSlice.Events[0].OriginalPosition.Value.PreparePosition;
AllEventsSlice slice;
do
{
slice = _connection.ReadAllEventsForward(@from, 100, false, _credentials);
DisplayTfScanProgress(slice);
foreach (var @event in slice.Events)
{
if (@event.OriginalEventNumber == 0)
{
UpgradeStreamIfPartitionCheckpoint(@event.OriginalStreamId);
}
}
from = slice.NextPosition;
} while (!slice.IsEndOfStream);
Log("Completed looking for partition checkpoint streams");
}
public static void DeleteAllStreams(this IEventStoreConnection connection)
{
var slice = connection.ReadAllEventsForward(Position.Start, Int32.MaxValue, false,
EmbeddedEventStore.Instance.DefaultCredentials);
var streams = slice.
Events.
Select(_ => _.OriginalStreamId).
Where(StreamNameIsNotReserved).
Distinct();
foreach (var stream in
from _ in streams
let streamStatusSlice = connection.ReadStreamEventsForward(_, 0, 1, false)
where streamStatusSlice.Status != SliceReadStatus.StreamDeleted &&
streamStatusSlice.Status != SliceReadStatus.StreamNotFound
select _)
{
connection.DeleteStream(stream, ExpectedVersion.Any, EmbeddedEventStore.Instance.DefaultCredentials);
}
}
static void FromAll(IEventStoreConnection con, UserCredentials userCredentials)
{
var sub = con.SubscribeToAllFrom(Position.Start, true, Appeared, Live, Dropped, userCredentials);
// sub.Start();
var read = con.ReadAllEventsForward(Position.Start, 1000, true, userCredentials);
var mre = new ManualResetEvent(false);
mre.WaitOne(3000);
var rgpsa = events.GroupBy(g => g.Event.EventId).ToList();
int i = 0;
var rgps = events.Select(s => new { s, position = i++ }).GroupBy(g => g.s.Event.EventId).ToList();
var rgps2 = read.Events.Select(s => new { s, position = i++ }).GroupBy(g => g.s.Event.EventId).ToList();
foreach (var r in rgps)
{
var values = r.ToArray();
}
Console.ReadLine();
}
protected override void ReadEventsTill(IEventStoreConnection connection, bool resolveLinkTos,
UserCredentials userCredentials, long? lastCommitPosition, int? lastEventNumber)
{
bool done;
do
{
AllEventsSlice slice = connection.ReadAllEventsForward(_nextReadPosition, ReadBatchSize, resolveLinkTos, userCredentials);
foreach (var e in slice.Events)
{
if (e.OriginalPosition == null) throw new Exception("Subscription event came up with no OriginalPosition.");
TryProcess(e);
}
_nextReadPosition = slice.NextPosition;
done = lastCommitPosition == null
? slice.IsEndOfStream
: slice.NextPosition >= new Position(lastCommitPosition.Value, lastCommitPosition.Value);
if (!done && slice.IsEndOfStream)
Thread.Sleep(1); // we are waiting for server to flush its data
} while (!done);
if (Verbose)
Log.Debug("Catch-up Subscription to {0}: finished reading events, nextReadPosition = {1}.",
IsSubscribedToAll ? "<all>" : StreamId, _nextReadPosition);
}
protected void ReadAllForward(string login, string password)
{
Connection.ReadAllEventsForward(Position.Start, 1, false,
login == null && password == null ? null : new UserCredentials(login, password));
}
static void FromAll(IEventStoreConnection con, UserCredentials userCredentials)
{
var sub = con.SubscribeToAllFrom(Position.Start, true, Appeared, Live, Dropped, userCredentials);
// sub.Start();
var read = con.ReadAllEventsForward(Position.Start, 1000, true, userCredentials);
var mre = new ManualResetEvent(false);
mre.WaitOne(3000);
var rgpsa = events.GroupBy(g => g.Event.EventId).ToList();
int i = 0;
var rgps = events.Select(s => new { s, position = i++ }).GroupBy(g => g.s.Event.EventId).ToList();
var rgps2 = read.Events.Select(s => new { s, position = i++ }).GroupBy(g => g.s.Event.EventId).ToList();
foreach (var r in rgps)
{
var values = r.ToArray();
}
Console.ReadLine();
}
