public EventDistributionPoint CreatePausedEventDistributionPoint(
Guid distributionPointId, IPublisher publisher, IPublisher inputQueue, CheckpointTag checkpointTag)
{
if (_allStreams)
{
var distributionPoint = new TransactionFileReaderEventDistributionPoint(
publisher, distributionPointId,
new EventPosition(checkpointTag.CommitPosition.Value, checkpointTag.PreparePosition.Value));
return(distributionPoint);
}
else if (_streams != null && _streams.Count == 1)
{
var streamName = checkpointTag.Streams.Keys.First();
//TODO: handle if not the same
return(CreatePausedStreamReaderEventDistributionPoint(
distributionPointId, publisher, inputQueue, checkpointTag, streamName, resolveLinkTos: true,
category: null));
}
else if (_categories != null && _categories.Count == 1)
{
var streamName = checkpointTag.Streams.Keys.First();
return(CreatePausedStreamReaderEventDistributionPoint(
distributionPointId, publisher, inputQueue, checkpointTag, streamName, resolveLinkTos: true,
category: _categories.First()));
}
else
{
throw new NotSupportedException();
}
}
public void Start(Guid distributionPointId, TransactionFileReaderEventDistributionPoint transactionFileReaderEventDistributionPoint)
{
_distributionPointId = distributionPointId;
_headDistributionPoint = transactionFileReaderEventDistributionPoint;
//Guid.Empty means head distribution point
_headDistributionPoint.Resume();
}
public EventDistributionPoint CreatePausedEventDistributionPoint(Guid distributionPointId, IPublisher publisher, CheckpointTag checkpointTag)
{
if (_allStreams)
{
var distributionPoint = new TransactionFileReaderEventDistributionPoint(
publisher, distributionPointId,
new EventPosition(checkpointTag.CommitPosition.Value, checkpointTag.PreparePosition.Value));
return distributionPoint;
}
else if (_streams != null && _streams.Count == 1)
{
var streamName = checkpointTag.Streams.Keys.First();
//TODO: handle if not the same
return CreatePausedStreamReaderEventDistributionPoint(distributionPointId, publisher, checkpointTag, streamName,
resolveLinkTos: true, category: null);
}
else if (_categories != null && _categories.Count == 1)
{
var streamName = checkpointTag.Streams.Keys.First();
return CreatePausedStreamReaderEventDistributionPoint(distributionPointId, publisher, checkpointTag, streamName,
resolveLinkTos: true, category: _categories.First());
}
else
throw new NotSupportedException();
}
public void Start(Guid distributionPointId, TransactionFileReaderEventDistributionPoint transactionFileReaderEventDistributionPoint)
{
_distributionPointId = distributionPointId;
_headDistributionPoint = transactionFileReaderEventDistributionPoint;
//Guid.Empty means head distribution point
_headDistributionPoint.Resume();
}
public void Handle(ProjectionMessage.CoreService.Start message)
{
//TODO: do we need to clear subscribed projections here?
//TODO: do we need to clear subscribed distribution points here?
_stopped = false;
var distibutionPointCorrelationId = Guid.NewGuid();
_headDistributionPoint = new TransactionFileReaderEventDistributionPoint(
_publisher, distibutionPointCorrelationId, new EventPosition(_writerCheckpoint.Read(), -1));
_distributionPoints.Add(distibutionPointCorrelationId, _headDistributionPoint);
_headingEventDistributionPoint.Start(distibutionPointCorrelationId, _headDistributionPoint);
//NOTE: writing any event to avoid empty database which we don not handle properly
// and write it after startAtCurrent to fill buffer
_publisher.Publish(
new ClientMessage.WriteEvents(
Guid.NewGuid(), new NoopEnvelope(), "$temp", ExpectedVersion.Any,
new Event(Guid.NewGuid(), "Starting", false, new byte[0], new byte[0])));
}
public EventDistributionPoint CreatePausedEventDistributionPoint(
Guid distributionPointId, IPublisher publisher, CheckpointTag checkpointTag)
{
if (_allStreams && _useEventIndexes && _events != null && _events.Count == 1)
{
var streamName = checkpointTag.Streams.Keys.First();
return(CreatePausedStreamReaderEventDistributionPoint(
distributionPointId, publisher, checkpointTag, streamName, resolveLinkTos: true));
}
if (_allStreams && _useEventIndexes && _events != null && _events.Count > 1)
{
return(CreatePausedMultiStreamReaderEventDistributionPoint(
distributionPointId, publisher, checkpointTag, resolveLinkTos: true, streams: GetEventIndexStreams()));
}
if (_allStreams)
{
var distributionPoint = new TransactionFileReaderEventDistributionPoint(
publisher, distributionPointId,
new EventPosition(checkpointTag.CommitPosition.Value, checkpointTag.PreparePosition.Value));
return(distributionPoint);
}
if (_streams != null && _streams.Count == 1)
{
var streamName = checkpointTag.Streams.Keys.First();
//TODO: handle if not the same
return(CreatePausedStreamReaderEventDistributionPoint(
distributionPointId, publisher, checkpointTag, streamName, resolveLinkTos: true));
}
if (_categories != null && _categories.Count == 1)
{
var streamName = checkpointTag.Streams.Keys.First();
return(CreatePausedStreamReaderEventDistributionPoint(
distributionPointId, publisher, checkpointTag, streamName, resolveLinkTos: true));
}
if (_streams != null && _streams.Count > 1)
{
return(CreatePausedMultiStreamReaderEventDistributionPoint(
distributionPointId, publisher, checkpointTag, resolveLinkTos: true, streams: _streams));
}
throw new NotSupportedException();
}
public void Stop()
{
_headDistributionPoint = null;
}
public void Stop()
{
_headDistributionPoint = null;
}