private Event CreateStreamMetadataEvent()
{
var eventId = Guid.NewGuid();
var acl = new StreamAcl(
readRole: SystemRoles.Admins, writeRole: SystemRoles.Admins,
deleteRole: SystemRoles.Admins, metaReadRole: SystemRoles.All,
metaWriteRole: SystemRoles.Admins);
var metadata = new StreamMetadata(maxCount: 2, maxAge: null, cacheControl: null, acl: acl);
var dataBytes = metadata.ToJsonBytes();
return new Event(eventId, SystemEventTypes.StreamMetadata, isJson: true, data: dataBytes, metadata: null);
}
private Event CreateStreamMetadataEvent(int? tb)
{
var eventId = Guid.NewGuid();
var acl = new StreamAcl(
readRole: SystemRoles.Admins, writeRole: SystemRoles.Admins,
deleteRole: SystemRoles.Admins, metaReadRole: SystemRoles.Admins,
metaWriteRole: SystemRoles.Admins);
var metadata = new StreamMetadata(cacheControl: null,
truncateBefore: tb,
acl: acl);
var dataBytes = metadata.ToJsonBytes();
return new Event(eventId, SystemEventTypes.StreamMetadata, isJson: true, data: dataBytes, metadata: null);
}
public ReadAllEventsBackwardCompleted(Guid correlationId, ReadAllResult result, string error, ResolvedEvent[] events,
StreamMetadata streamMetadata, bool isCachePublic, int maxCount,
TFPos currentPos, TFPos nextPos, TFPos prevPos, long tfLastCommitPosition)
{
Ensure.NotNull(events, "events");
CorrelationId = correlationId;
Result = result;
Error = error;
Events = events;
StreamMetadata = streamMetadata;
IsCachePublic = isCachePublic;
MaxCount = maxCount;
CurrentPos = currentPos;
NextPos = nextPos;
PrevPos = prevPos;
TfLastCommitPosition = tfLastCommitPosition;
}
public ReadStreamEventsBackwardCompleted(Guid correlationId,
string eventStreamId,
int fromEventNumber,
int maxCount,
ReadStreamResult result,
ResolvedEvent[] events,
StreamMetadata streamMetadata,
bool isCachePublic,
string error,
int nextEventNumber,
int lastEventNumber,
bool isEndOfStream,
long tfLastCommitPosition)
{
Ensure.NotNull(events, "events");
if (result != ReadStreamResult.Success)
{
Ensure.Equal(nextEventNumber, -1, "nextEventNumber");
Ensure.Equal(isEndOfStream, true, "isEndOfStream");
}
CorrelationId = correlationId;
EventStreamId = eventStreamId;
FromEventNumber = fromEventNumber;
MaxCount = maxCount;
Result = result;
Events = events;
StreamMetadata = streamMetadata;
IsCachePublic = isCachePublic;
Error = error;
NextEventNumber = nextEventNumber;
LastEventNumber = lastEventNumber;
IsEndOfStream = isEndOfStream;
TfLastCommitPosition = tfLastCommitPosition;
}
public ReadEventCompleted(Guid correlationId, string eventStreamId, ReadEventResult result,
ResolvedEvent record, StreamMetadata streamMetadata, bool isCachePublic, string error)
{
Ensure.NotNullOrEmpty(eventStreamId, "eventStreamId");
if (result == ReadEventResult.Success)
Ensure.NotNull(record.Event, "record.Event");
CorrelationId = correlationId;
EventStreamId = eventStreamId;
Result = result;
Record = record;
StreamMetadata = streamMetadata;
IsCachePublic = isCachePublic;
Error = error;
}
private static int? GetCacheSeconds(StreamMetadata metadata)
{
return metadata != null && metadata.CacheControl.HasValue
? (int) metadata.CacheControl.Value.TotalSeconds
: (int?) null;
}
public static Rec Prepare(int transaction, string stream, string eventType = null, DateTime? timestamp = null, StreamMetadata metadata = null)
{
return new Rec(RecType.Prepare, transaction, stream, eventType, timestamp, metadata);
}
public Rec(RecType type, int transaction, string streamId, string eventType, DateTime? timestamp, StreamMetadata metadata = null)
{
Ensure.NotNullOrEmpty(streamId, "streamId");
Ensure.Nonnegative(transaction, "transaction");
Type = type;
Id = Guid.NewGuid();
Transaction = transaction;
StreamId = streamId;
EventType = eventType ?? string.Empty;
TimeStamp = timestamp ?? DateTime.UtcNow;
Metadata = metadata;
}
private static bool IsCachePublic(string streamId, StreamMetadata metadata)
{
if (SystemStreams.IsMetastream(streamId))
return false; // we don't have enough info here for metastreams
var isSystem = SystemStreams.IsSystemStream(streamId);
var role = (metadata == null || metadata.Acl == null) ? null : metadata.Acl.ReadRole;
return isSystem ? (role == SystemUserGroups.All) : (role == null || role == SystemUserGroups.All);
}