protected async Task <Task> ExecuteMessagesByDownStreamOperators(StreamMessage msg, IAsyncStream <StreamMessage> stream, IOperator op)
{
if (downStreamOperators.Count > 0)
{
int batchID = msg.BatchID;
var targetKey = op.GetPrimaryKey();
try
{
msg.From = this.GetPrimaryKey();
//if is barrier message, set the message count
if (msg.Value == Constants.Barrier_Value)
{
if (downStreamMessageCountMaps.ContainsKey(batchID))
{
if (downStreamMessageCountMaps[batchID].ContainsKey(op.GetPrimaryKey()))
{
msg.Count = downStreamMessageCountMaps[batchID][op.GetPrimaryKey()];
}
else
{
msg.Count = 0;
}
}
else
{
msg.Count = 0;
}
}
//if it is a normal message, increment the count map
else if (msg.Value != Constants.System_Key)
{
if (!downStreamMessageCountMaps.ContainsKey(batchID))
{
downStreamMessageCountMaps.Add(batchID, new Dictionary <Guid, int>());
}
var key = op.GetPrimaryKey();
if (downStreamMessageCountMaps[batchID].ContainsKey(key))
{
downStreamMessageCountMaps[batchID][key] = downStreamMessageCountMaps[batchID][key] + 1;
}
else
{
downStreamMessageCountMaps[batchID].Add(key, 1);
}
}
op.ExecuteMessage(msg, stream);
}
catch (Exception e)
{
PrettyConsole.Line("Get Exception : " + e + "; Start Receovry");
topologyManager.ReplaceTheOldOperator(targetKey);
}
}
return(Task.CompletedTask);
}
