public TopicPartitionQueue(IMessageHandler <TKey, TValue> messageHandler, int queueCapacity)
{
_messageHandler = messageHandler;
_bufferBlock = new BufferBlock <Message <TKey, TValue> >(
new DataflowBlockOptions
{
BoundedCapacity = queueCapacity
});
_actionBlock = new ActionBlock <Message <TKey, TValue> >(
_messageHandler.HandleAsync,
new ExecutionDataflowBlockOptions
{
BoundedCapacity = 1
});
_bufferBlock.LinkTo(_actionBlock, new DataflowLinkOptions
{
PropagateCompletion = true
});
_actionBlock.PropagateErrorsTo(_bufferBlock);
}