/// <summary>
/// The unsubscribe functionality for cancellable rules
/// </summary>
/// <param name="cancellableRule">
/// The cancellable rule.
/// </param>
public void Unsubscribe(ICancellableRule cancellableRule)
{
if (cancellableRule == null)
{
this.logger?.LogError("Cancel received a null cancellable rule unsubscribe");
return;
}
lock (this.ruleCancellationLock)
{
if (!this.cancellableRules.Contains(cancellableRule))
{
return;
}
this.cancellableRules.Remove(cancellableRule);
}
}
/// <summary>
/// The post subscription check.
/// </summary>
/// <param name="cancellableRule">
/// The cancellable rule.
/// </param>
private void PostSubscriptionCheck(ICancellableRule cancellableRule)
{
var matchedCancellations =
this
.cancellations
.All()
.Where(_ =>
string.Equals(_, cancellableRule?.Schedule?.CorrelationId, StringComparison.OrdinalIgnoreCase))
.ToList();
if (!matchedCancellations.Any())
{
return;
}
foreach (var cancelId in matchedCancellations)
{
this.Cancel(cancelId);
}
}
/// <summary>
/// The subscribe functionality for cancellable rules to provide access to cancellation requests.
/// </summary>
/// <param name="cancellableRule">
/// The cancellable rule.
/// </param>
public void Subscribe(ICancellableRule cancellableRule)
{
if (cancellableRule == null)
{
this.logger?.LogError("Cancel received a null cancellable rule subscription");
return;
}
lock (this.ruleCancellationLock)
{
if (this.cancellableRules.Contains(cancellableRule))
{
return;
}
this.cancellableRules.Add(cancellableRule);
}
this.PostSubscriptionCheck(cancellableRule);
}