protected EventRecord WriteSingleEvent(string eventStreamName,
long eventNumber,
string data,
DateTime?timestamp = null,
Guid eventId = default(Guid),
bool retryOnFail = false,
string eventType = "some-type")
{
_streamNameIndex.GetOrAddId(eventStreamName, out var eventStreamId, out _, out _);
var prepare = LogRecord.SingleWrite(_recordFactory, WriterCheckpoint.ReadNonFlushed(),
eventId == default(Guid) ? Guid.NewGuid() : eventId,
Guid.NewGuid(),
eventStreamId,
eventNumber - 1,
eventType,
Helper.UTF8NoBom.GetBytes(data),
null,
timestamp);
long pos;
if (!retryOnFail)
{
Assert.IsTrue(Writer.Write(prepare, out pos));
}
else
{
long firstPos = prepare.LogPosition;
if (!Writer.Write(prepare, out pos))
{
prepare = LogRecord.SingleWrite(_recordFactory, pos,
prepare.CorrelationId,
prepare.EventId,
prepare.EventStreamId,
prepare.ExpectedVersion,
prepare.EventType,
prepare.Data,
prepare.Metadata,
prepare.TimeStamp);
if (!Writer.Write(prepare, out pos))
{
Assert.Fail("Second write try failed when first writing prepare at {0}, then at {1}.", firstPos,
prepare.LogPosition);
}
}
}
var commit = LogRecord.Commit(WriterCheckpoint.ReadNonFlushed(), prepare.CorrelationId, prepare.LogPosition,
eventNumber);
Assert.IsTrue(Writer.Write(commit, out pos));
Assert.AreEqual(eventStreamId, prepare.EventStreamId);
var eventRecord = new EventRecord(eventNumber, prepare, eventStreamName);
return(eventRecord);
}
public bool GetOrAddId(string streamName, out long streamId, out long createdId, out string createdName)
{
if (SystemStreams.IsMetastream(streamName))
{
streamName = SystemStreams.OriginalStreamOf(streamName);
var ret = GetOrAddId(streamName, out streamId, out createdId, out createdName);
streamId = _metastreams.MetaStreamOf(streamId);
return(ret);
}
if (LogV3SystemStreams.TryGetVirtualStreamId(streamName, out streamId))
{
createdId = default;
createdName = default;
return(true);
}
return(_wrapped.GetOrAddId(streamName, out streamId, out createdId, out createdName));
}
public bool GetOrAddId(string streamName, out TStreamId streamId, out TStreamId createdId, out string createdName) => _streamNameIndex.GetOrAddId(streamName, out streamId, out createdId, out createdName);
