public IEnumerable <OutboxMessage> HydrateOutboxMessages(DbDataReader reader)
{
List <OutboxMessage> outboxMessages = new List <OutboxMessage>();
while (reader.Read())
{
var id = reader.GetGuid(0);
var priorityDateUtc = reader.GetDateTime(1);
var type = reader.GetString(2);
string endpoint = null;
if (!reader.IsDBNull(3))
{
endpoint = reader.GetString(3);
}
var tryCount = reader.GetInt32(4);
var status = reader.GetInt32(5);
DateTime?expiresAtUtc = null;
if (!reader.IsDBNull(6))
{
expiresAtUtc = reader.GetDateTime(6);
}
var createdAtUtc = reader.GetDateTime(7);
var dataId = reader.GetGuid(8);
var data = (byte[])reader.GetValue(9);
string metaData = null;
if (!reader.IsDBNull(10))
{
metaData = reader.GetString(10);
}
var outboxMessage = new OutboxMessage(type, data, metaData, priorityDateUtc, endpoint, false, expiresAtUtc, id)
{
TryCount = tryCount,
Status = status,
CreatedAtUtc = createdAtUtc,
};
outboxMessages.Add(outboxMessage);
}
return(outboxMessages);
}
private async Task _relay(OutboxMessage outboxMessage, Dispatcher dispatcher, bool isTransient = false)
{
if (!_isValidForRelay(outboxMessage))
{
MarkAsFailure(outboxMessage, permanent: true);
}
else
{
try
{
var metaData = outboxMessage.MessageData.MetaData != null?JsonConvert.DeserializeObject <MessageMetaData>(outboxMessage.MessageData.MetaData) : null;
//await relayCallback(outboxMessage.Type, outboxMessage.MessageData.Data, metaData, outboxMessage.Endpoint);
await dispatcher.Invoke(outboxMessage.Type, outboxMessage.MessageData.Data, metaData, outboxMessage.Endpoint, isTransient);
MarkAsComplete(outboxMessage);
}
catch (Exception ex)
{
MarkAsFailure(outboxMessage);
_log.LogError(ex, "Error publishing Outbox Event Id: {id} Type: {type} Tries: {retryCount}", outboxMessage.Id, outboxMessage.Type, outboxMessage.TryCount);
}
}//else
}
private void MarkAsComplete(OutboxMessage outboxMessage)
{
try
{
using (var conn = _dbConnection.Get())
using (IDbCommand command = conn.CreateCommand())
{
conn.Open();
command.CommandText = "update dbo.OutboxMessages SET [Status] = 2 where Id = @Id";
SqlParameter parameter = new SqlParameter("@Id", outboxMessage.Id)
{
SqlDbType = SqlDbType.UniqueIdentifier,
Direction = ParameterDirection.Input,
};
command.Parameters.Add(parameter);
int rows = command.ExecuteNonQuery();
}
}
catch (Exception ex)
{
_log.LogError(ex, "Exception marking outbox message complete Message Id: {id} Type: {type} Tries: {retryCount}", outboxMessage.Id, outboxMessage.Type, outboxMessage.TryCount);
throw;
}
}
private Task _addToContext(string messageTypeIdentifier, byte[] message, MessageMetaData meta, IEndpoint endpoint = null, OutboxDispatchOptions options = null)
{
options = options ?? new OutboxDispatchOptions();
double delayInSeconds = 0; //send immediately
bool skipTransient = _outbox.DisableTransientDispatch;
if (!skipTransient)
{
skipTransient = options.SkipTransientDispatch;//check at the message level
}
if (options.Delay.HasValue)
{
delayInSeconds = options.Delay.Value.TotalSeconds;
}
var priorityDateUtc = DateTime.UtcNow.AddSeconds(delayInSeconds);
var outboxMessage = new OutboxMessage(
messageTypeIdentifier,
message,
meta != null ? JsonConvert.SerializeObject(meta) : null,
priorityDateUtc,
endpoint?.Name,
skipTransient,
options.ExpiresAtUtc);
//add the message for persistance with the dbcontext
_dbContext.Add(outboxMessage);
if (!outboxMessage.SkipTransientDispatch)
{
this._transientMessageQueue.Enqueue(outboxMessage);
}
return(Task.CompletedTask);
}
