/// <summary>
/// Adds the specified message.
/// The message must have a 'streamId' and an 'eventNumber' in the message header bag.
/// The 'streamId' is the name of the stream to append the message to.
/// The 'eventNumber' should be one greater than the last event in the stream.
/// </summary>
/// <param name="message">The message.</param>
/// <param name="outBoxTimeout">The outBoxTimeout.</param>
/// <returns>Task.</returns>
public void Add(Message message, int outBoxTimeout = -1, IAmABoxTransactionConnectionProvider transactionConnectionProvider = null)
{
s_logger.LogDebug("Adding message to Event Store Outbox: {Request}", JsonSerializer.Serialize(message, JsonSerialisationOptions.Options));
var headerBag = message.Header.Bag;
var streamId = ExtractStreamIdFromHeader(headerBag, message.Id);
var eventNumber = ExtractEventNumberFromHeader(headerBag, message.Id);
var numberOfPreviousEvent = eventNumber - 1;
var eventData = EventStoreMessageWriter.CreateEventData(message);
_eventStore.AppendToStreamAsync(streamId, numberOfPreviousEvent, eventData).Wait();
}
/// <summary>
/// Awaitable add the specified message.
/// </summary>
/// <param name="message">The message.</param>
/// <param name="outBoxTimeout">The time allowed for the write in milliseconds; on a -1 default</param>
/// <param name="cancellationToken">Allows the sender to cancel the request pipeline. Optional</param>
/// <returns><see cref="Task"/>.</returns>
public async Task AddAsync(Message message, int outBoxTimeout = -1,
CancellationToken cancellationToken = default(CancellationToken), IAmABoxTransactionConnectionProvider transactionConnectionProvider = null)
{
s_logger.LogDebug("Adding message to Event Store Outbox: {Request}", JsonSerializer.Serialize(message, JsonSerialisationOptions.Options));
var streamId = ExtractStreamIdFromHeader(message.Header.Bag, message.Id);
var eventNumber = ExtractEventNumberFromHeader(message.Header.Bag, message.Id);
var numberOfPreviousEvent = eventNumber - 1;
var eventData = EventStoreMessageWriter.CreateEventData(message);
await _eventStore.AppendToStreamAsync(streamId, numberOfPreviousEvent, eventData);
}
/// <summary>
/// Update a message to show it is dispatched
/// </summary>
/// <param name="id">The id of the message to update</param>
/// <param name="dispatchedAt">When was the message dispatched, defaults to UTC now</param>
/// <param name="args">Additional parameters required for search, if any</param>
/// <param name="cancellationToken">Allows the sender to cancel the request pipeline. Optional</param>
public async Task MarkDispatchedAsync(Guid id, DateTime?dispatchedAt = null, Dictionary <string, object> args = null,
CancellationToken cancellationToken = default)
{
var stream = GetStreamFromArgs(args);
StreamEventsSlice slice;
var startPos = (long)StreamPosition.End;
long? nextEventNumber = null;
RecordedEvent resolvedEvent;
bool found = false;
do
{
slice = await _eventStore.ReadStreamEventsBackwardAsync(stream, startPos, 100, true);
startPos = slice.NextEventNumber;
if (nextEventNumber is null)
{
nextEventNumber = (await _eventStore.ReadStreamEventsBackwardAsync(stream, StreamPosition.End, 1, true)).LastEventNumber;
}
resolvedEvent = slice.Events.FirstOrDefault(e => e.Event.EventId == id).Event;
if (resolvedEvent != null)
{
found = true;
}
} while (!found && !slice.IsEndOfStream);
if (resolvedEvent is null)
{
return;
}
var message = EventStoreMessageReader.ConvertEventToMessage(resolvedEvent, stream, dispatchedAt, nextEventNumber.Value);
var eventData = EventStoreMessageWriter.CreateEventData(message);
await _eventStore.AppendToStreamAsync(stream, nextEventNumber.Value, eventData);
}
