public IAsyncPolicy <IContinuation> BuildPolicy(RetryPolicyCollection parent)
{
var policies = combine(parent).Reverse().ToArray();
if (policies.Length != 0)
{
return(policies.Length == 1
? policies[0]
: Policy.WrapAsync(policies));
}
return(null);
}
private IEnumerable <IAsyncPolicy <IContinuation> > combine(RetryPolicyCollection parent)
{
foreach (var policy in _policies)
{
yield return(policy);
}
if (MaximumAttempts.HasValue)
{
yield return(Policy <IContinuation> .Handle <Exception>().Requeue(MaximumAttempts.Value));
}
foreach (var policy in parent._policies)
{
yield return(policy);
}
if (parent.MaximumAttempts.HasValue)
{
yield return(Policy <IContinuation> .Handle <Exception>().Requeue(parent.MaximumAttempts.Value));
}
}
internal PolicyExpression(RetryPolicyCollection parent, PolicyBuilder <IContinuation> builder)
{
_parent = parent;
_builder = builder;
}