internal StreamEventsSlice(SliceReadStatus status,
string stream,
int fromEventNumber,
ReadDirection readDirection,
ClientMessage.ResolvedIndexedEvent[] events,
int nextEventNumber,
int lastEventNumber,
bool isEndOfStream)
{
Ensure.NotNullOrEmpty(stream, "stream");
Status = status;
Stream = stream;
FromEventNumber = fromEventNumber;
ReadDirection = readDirection;
if (events == null || events.Length == 0)
{
Events = Empty.ResolvedEvents;
}
else
{
Events = new ResolvedEvent[events.Length];
for (int i = 0; i < Events.Length; ++i)
{
Events[i] = new ResolvedEvent(events[i]);
}
}
NextEventNumber = nextEventNumber;
LastEventNumber = lastEventNumber;
IsEndOfStream = isEndOfStream;
}
internal StreamEventsSlice(SliceReadStatus status,
string stream,
int fromEventNumber,
ReadDirection readDirection,
ClientMessage.ResolvedIndexedEvent[] events,
int nextEventNumber,
int lastEventNumber,
bool isEndOfStream)
{
Ensure.NotNullOrEmpty(stream, "stream");
Status = status;
Stream = stream;
FromEventNumber = fromEventNumber;
ReadDirection = readDirection;
if (events == null || events.Length == 0)
Events = Empty.ResolvedEvents;
else
{
Events = new ResolvedEvent[events.Length];
for (int i = 0; i < Events.Length; ++i)
{
Events[i] = new ResolvedEvent(events[i]);
}
}
NextEventNumber = nextEventNumber;
LastEventNumber = lastEventNumber;
IsEndOfStream = isEndOfStream;
}
/// <summary>
/// Check if stream exists
/// </summary>
/// <param name="connection">connection to ES</param>
/// <param name="streamName">Name of the stream</param>
/// <returns>True if stream exists</returns>
public static bool StreamExits(IEventStoreConnection connection, string streamName)
{
var lastEventsStream = connection.ReadStreamEventsBackwardAsync(streamName.ToLower(), 0, 1, false).Result;
SliceReadStatus status = lastEventsStream.Status;
return(status == 0);
}
private EventStoreStreamsBindingException HandleError(SliceReadStatus error)
{
switch (error)
{
case SliceReadStatus.StreamDeleted: return(new EventStoreStreamsBindingStreamDeletedException($"Unable to read from Stream: '{nameof(SliceReadStatus.StreamDeleted)}'"));
case SliceReadStatus.StreamNotFound: return(new EventStoreStreamsBindingStreamNotFoundException($"Unable to read from Stream: '{nameof(SliceReadStatus.StreamNotFound)}'"));
default: return(new EventStoreStreamsBindingException($"This is really an unexpected error!"));
}
}
internal EventStreamSlice(SliceReadStatus status,
string stream,
int start,
int count,
IEnumerable<ClientMessage.EventLinkPair> events,
int nextEventNumber,
int lastEventNumber,
bool isEndOfStream)
{
Ensure.NotNullOrEmpty(stream, "stream");
Status = status;
Stream = stream;
Start = start;
Count = count;
Events = events == null ? EmptyEvents : events.Select(e => new RecordedEvent(e.Event)).ToArray();
NextEventNumber = nextEventNumber;
LastEventNumber = lastEventNumber;
IsEndOfStream = isEndOfStream;
}
internal EventStreamSlice(SliceReadStatus status,
string stream,
int start,
int count,
IEnumerable <ClientMessage.EventLinkPair> events,
int nextEventNumber,
int lastEventNumber,
bool isEndOfStream)
{
Ensure.NotNullOrEmpty(stream, "stream");
Status = status;
Stream = stream;
Start = start;
Count = count;
Events = events == null ? EmptyEvents : events.Select(e => new RecordedEvent(e.Event)).ToArray();
NextEventNumber = nextEventNumber;
LastEventNumber = lastEventNumber;
IsEndOfStream = isEndOfStream;
}
