static void Example()
{
PrintTitle(nameof(Example));
using (var queue = new PersistentQueueWrapper <WorkItem>("q2"))
{
queue.Enqueue(new WorkItem {
WorkId = DateTime.Now.ToFileTimeUtc()
});
}
using (var queue = new PersistentQueueWrapper <WorkItem>("q2"))
{
queue.Enqueue(NewWorkItem());
queue
.ToObservableItems(
sleep_for: TimeSpan.FromSeconds(0.3),
max_wait: TimeSpan.FromSeconds(1)
)
.Subscribe(
x => Console.WriteLine($"{x.WorkId}"),
e => Console.Error.WriteLine(e),
() => Console.WriteLine("No more items")
);
}
}
static void QueueAsObservableExample()
{
PrintTitle(nameof(QueueAsObservableExample));
using (var queue = new PersistentQueueWrapper <WorkItem>("q3"))
{
// produce some in the background
Task.Run(() =>
{
Observable
.Interval(TimeSpan.FromSeconds(0.5))
.Select(_ => new WorkItem {
WorkId = DateTime.Now.ToFileTimeUtc()
})
.Take(5)
.Subscribe(item => queue.Enqueue(item));
Console.WriteLine("Press any key to stop producing");
});
// consume with a timeout
queue
.ToObservableItems(
sleep_for: TimeSpan.FromSeconds(0.3),
max_wait: TimeSpan.FromSeconds(1)
)
.Subscribe(
x => Console.WriteLine($"{x.WorkId}"),
e => Console.Error.WriteLine(e),
() => Console.WriteLine("No more items")
);
}
}
static void DurableObservableExample()
{
PrintTitle(nameof(DurableObservableExample));
// post some items
using (var queue = new PersistentQueueWrapper <WorkItem>("q1"))
{
Observable
.Range(0, 2)
.Select(_ => NewWorkItem())
.Persistent(queue, TimeSpan.FromMilliseconds(0));
}
// post some more items and observe the previously enqueued ones
using (var queue = new PersistentQueueWrapper <WorkItem>("q1"))
{
Observable
.Interval(TimeSpan.FromSeconds(1))
.Take(3)
.Select(_ => NewWorkItem())
.Persistent(queue, TimeSpan.FromMilliseconds(100))
.Subscribe(item => Console.WriteLine(item.WorkId))
;
}
}
