public async Task IsAcquired_WhenLeaseWasNotAcquired_ReturnsTrue()
{
// arrange
//
await Lease.AcquireAsync(Blob, TimeSpan.FromMinutes(1));
// act
//
var lease = await Lease.AcquireAsync(Blob, TimeSpan.FromMinutes(1));
// assert
//
Assert.False(Lease.IsAcquired(lease));
}
private async Task ReleaseLeaseAsync(Lease lease)
{
if (Lease.IsAcquired(lease))
{
try
{
await Lease.ReleaseAsync(m_chaserExclusiveAccessBlobLock, lease);
s_logger.Verbose("Chaser lock was successfully released.");
}
catch (Exception exception)
{
s_logger.Error(exception, "Releasing chaser lock failed.");
}
}
}
public void Start()
{
s_logger.Information("Starting pending notifications chaser...");
m_pollingJob.Start(async cancellationToken =>
{
var lease = Lease.NotAcquired;
var result = false;
try
{
lease = await Lease.AcquireAsync(
m_chaserExclusiveAccessBlobLock,
TimeSpan.FromMinutes(Constants.Settings.PENDING_NOTIFICATIONS_CHASER_EXCLUSIVE_ACCESS_LOCK_TIMEOUT_IN_MINUTES));
if (Lease.IsAcquired(lease))
{
s_logger.Verbose("Chaser lock was successfully acquired. Start pending notification processing...");
var processNotificationCount = await ProcessPendingNotificationsAsync();
s_logger.Information("Chaser republished {NotificationCount} unpublished notifications.", processNotificationCount);
result = processNotificationCount != 0;
}
else
{
s_logger.Verbose("Chaser lock wasn't acquired.");
}
}
catch (Exception exception)
{
s_logger.Error(exception, "Notification processing failed.");
}
await ReleaseLeaseAsync(lease);
return(result);
});
s_logger.Information("Pending notifications chaser started.");
}
public async Task IsAcquired_WhenLeaseWasAcquired_ReturnsTrue()
{
var lease = await Lease.AcquireAsync(Blob, TimeSpan.FromMinutes(1));
Assert.True(Lease.IsAcquired(lease));
}