public AllSubscriptionFiltered(IPublisher bus,
Position?startPosition,
bool resolveLinks,
IEventFilter eventFilter,
ClaimsPrincipal user,
bool requiresLeader,
IReadIndex readIndex,
uint?maxSearchWindow,
uint checkpointIntervalMultiplier,
Func <Position, Task> checkpointReached,
CancellationToken cancellationToken)
{
if (bus == null)
{
throw new ArgumentNullException(nameof(bus));
}
if (eventFilter == null)
{
throw new ArgumentNullException(nameof(eventFilter));
}
if (readIndex == null)
{
throw new ArgumentNullException(nameof(readIndex));
}
if (checkpointReached == null)
{
throw new ArgumentNullException(nameof(checkpointReached));
}
if (checkpointIntervalMultiplier == 0)
{
throw new ArgumentOutOfRangeException(nameof(checkpointIntervalMultiplier));
}
_subscriptionId = Guid.NewGuid();
_bus = bus;
_resolveLinks = resolveLinks;
_eventFilter = eventFilter;
_user = user;
_requiresLeader = requiresLeader;
_readIndex = readIndex;
_maxSearchWindow = maxSearchWindow;
_checkpointIntervalMultiplier = checkpointIntervalMultiplier;
_checkpointReached = checkpointReached;
_cancellationToken = cancellationToken;
_subscriptionStarted = new TaskCompletionSource <bool>();
_subscriptionStarted.SetResult(true);
_inner = startPosition == Position.End
? (IStreamSubscription) new LiveStreamSubscription(_subscriptionId, _bus,
Position.FromInt64(_readIndex.LastIndexedPosition, _readIndex.LastIndexedPosition),
_resolveLinks, _eventFilter, _user, _requiresLeader, _maxSearchWindow,
_checkpointIntervalMultiplier, checkpointReached, _cancellationToken)
: new CatchupAllSubscription(_subscriptionId, bus, startPosition ?? Position.Start, resolveLinks,
_eventFilter, user, _requiresLeader, readIndex, _maxSearchWindow, _checkpointIntervalMultiplier, checkpointReached,
cancellationToken);
}
public CatchupAllSubscription(Guid subscriptionId,
IPublisher bus,
Position position,
bool resolveLinks,
IEventFilter eventFilter,
ClaimsPrincipal user,
bool requiresLeader,
IReadIndex readIndex,
uint?maxWindowSize,
uint checkpointIntervalMultiplier,
Func <Position, Task> checkpointReached,
CancellationToken cancellationToken)
{
if (bus == null)
{
throw new ArgumentNullException(nameof(bus));
}
if (eventFilter == null)
{
throw new ArgumentNullException(nameof(eventFilter));
}
if (readIndex == null)
{
throw new ArgumentNullException(nameof(readIndex));
}
if (checkpointReached == null)
{
throw new ArgumentNullException(nameof(checkpointReached));
}
if (checkpointIntervalMultiplier == 0)
{
throw new ArgumentOutOfRangeException(nameof(checkpointIntervalMultiplier));
}
_subscriptionId = subscriptionId;
_bus = bus;
_nextPosition = position == Position.End
? Position.FromInt64(readIndex.LastIndexedPosition, readIndex.LastIndexedPosition)
: position;
_startPosition = position == Position.End ? Position.Start : position;
_resolveLinks = resolveLinks;
_eventFilter = eventFilter;
_user = user;
_requiresLeader = requiresLeader;
_checkpointReached = checkpointReached;
_maxWindowSize = maxWindowSize ?? ReadBatchSize;
_checkpointInterval = checkpointIntervalMultiplier * _maxWindowSize;
_disposedTokenSource = new CancellationTokenSource();
_buffer = new ConcurrentQueueWrapper <(ResolvedEvent, Position?)>();
_tokenRegistration = cancellationToken.Register(_disposedTokenSource.Dispose);
_currentPosition = _startPosition;
_checkpointIntervalCounter = 0;
Log.Information("Catch-up subscription {subscriptionId} to $all:{eventFilter} running...",
_subscriptionId, _eventFilter);
}
public AllSubscriptionFiltered(IPublisher bus,
Position?startPosition,
bool resolveLinks,
IEventFilter eventFilter,
ClaimsPrincipal user,
bool requiresLeader,
IReadIndex readIndex,
uint?maxSearchWindow,
uint checkpointIntervalMultiplier,
ReadReq.Types.Options.Types.UUIDOption uuidOption,
CancellationToken cancellationToken)
{
if (bus == null)
{
throw new ArgumentNullException(nameof(bus));
}
if (eventFilter == null)
{
throw new ArgumentNullException(nameof(eventFilter));
}
if (readIndex == null)
{
throw new ArgumentNullException(nameof(readIndex));
}
if (checkpointIntervalMultiplier == 0)
{
throw new ArgumentOutOfRangeException(nameof(checkpointIntervalMultiplier));
}
_subscriptionId = Guid.NewGuid();
_bus = bus;
_resolveLinks = resolveLinks;
_eventFilter = eventFilter;
_user = user;
_requiresLeader = requiresLeader;
_readIndex = readIndex;
_maxSearchWindow = maxSearchWindow ?? ReadBatchSize;
_uuidOption = uuidOption;
_cancellationToken = cancellationToken;
_subscriptionStarted = 0;
_channel = Channel.CreateBounded <ReadResp>(BoundedChannelOptions);
_checkpointInterval = checkpointIntervalMultiplier * _maxSearchWindow;
_semaphore = new SemaphoreSlim(1, 1);
SubscriptionId = _subscriptionId.ToString();
_currentPosition = null;
Subscribe(startPosition);
}
public ReadAllForwardsFiltered(IPublisher bus,
Position position,
ulong maxCount,
bool resolveLinks,
IEventFilter eventFilter,
ClaimsPrincipal user,
bool requiresLeader,
IReadIndex readIndex,
uint?maxSearchWindow,
DateTime deadline,
ReadReq.Types.Options.Types.UUIDOption uuidOption,
CancellationToken cancellationToken)
{
if (bus == null)
{
throw new ArgumentNullException(nameof(bus));
}
if (eventFilter == null)
{
throw new ArgumentNullException(nameof(eventFilter));
}
if (readIndex == null)
{
throw new ArgumentNullException(nameof(readIndex));
}
_bus = bus;
_maxCount = maxCount;
_resolveLinks = resolveLinks;
_eventFilter = eventFilter;
_user = user;
_requiresLeader = requiresLeader;
_readIndex = readIndex;
_maxSearchWindow = maxSearchWindow ?? ReadBatchSize;
_deadline = deadline;
_uuidOption = uuidOption;
_cancellationToken = cancellationToken;
_semaphore = new SemaphoreSlim(1, 1);
_channel = Channel.CreateBounded <ReadResp>(BoundedChannelOptions);
ReadPage(position);
}
public AllSubscriptionFiltered(IPublisher bus,
Position?startPosition,
bool resolveLinks,
IEventFilter eventFilter,
ClaimsPrincipal user,
bool requiresLeader,
IReadIndex readIndex,
uint?maxSearchWindow,
uint checkpointIntervalMultiplier,
Func <Position, Task> checkpointReached,
CancellationToken cancellationToken)
{
if (bus == null)
{
throw new ArgumentNullException(nameof(bus));
}
if (eventFilter == null)
{
throw new ArgumentNullException(nameof(eventFilter));
}
if (readIndex == null)
{
throw new ArgumentNullException(nameof(readIndex));
}
if (checkpointReached == null)
{
throw new ArgumentNullException(nameof(checkpointReached));
}
if (checkpointIntervalMultiplier == 0)
{
throw new ArgumentOutOfRangeException(nameof(checkpointIntervalMultiplier));
}
_subscriptionId = Guid.NewGuid();
_bus = bus;
_resolveLinks = resolveLinks;
_eventFilter = eventFilter;
_user = user;
_requiresLeader = requiresLeader;
_maxSearchWindow = maxSearchWindow ?? ReadBatchSize;
_checkpointReached = checkpointReached;
_cancellationToken = cancellationToken;
_subscriptionStarted = new TaskCompletionSource <bool>();
_channel = Channel.CreateBounded <(ResolvedEvent?, Position?)>(BoundedChannelOptions);
_checkpointInterval = checkpointIntervalMultiplier * _maxSearchWindow;
_semaphore = new SemaphoreSlim(1, 1);
_lastCheckpoint = Position.Start;
SubscriptionId = _subscriptionId.ToString();
var lastIndexedPosition = readIndex.LastIndexedPosition;
var startPositionExclusive = startPosition == Position.End
? Position.FromInt64(lastIndexedPosition, lastIndexedPosition)
: startPosition ?? Position.Start;
_startPositionExclusive = new TFPos((long)startPositionExclusive.CommitPosition,
(long)startPositionExclusive.PreparePosition);
Subscribe(startPositionExclusive, startPosition != Position.End);
}
