Dequeuing

Use Case

There are several ways to achieve dequeuing; but I would suggest looking at the Dequeue Factory. This creates the queue, and then maintains dynamic frequency, batch sizing and number of threads polling.

By using the factory, you are able to specify dynamic characteristics of the dequeuing; see the table below to understand the aspects of each priority.

	Low	Medium	High	Definition
Throughput	0.7-12.8	2.1-102	25.6-800	~ msgs per second (per task)
Cost	<= $0.03	$0.01-$0.10	$0.05-0.64	~ cost per month (per task)

Sample Code

Dequeue Factory

public class Factory : ITaskFactory<Configuration>
{
    public IEnumerable<IRunnable> Tasks(Configuration config)
    {
        var f = new DequeueFactory("Connection String");
        return f.Dequeue<CompanyProcessor, CompanyModel>("queue-name", QueuePriority.Medium);
    }
}

Sharded Queue

public class Factory : ITaskFactory<Configuration>
{
    public IEnumerable<IRunnable> Tasks(Configuration config)
    {
        var f = new DequeueFactory("Connection String");
        return f.Shards<CompanyProcessor, CompanyModel>("queue-name", 10);
    }
}