public ImplementationTypeDescriptor Resolve <T>(HotSwapInternalConfiguration <T> config) where T : class
{
// If none are active/ default, set one
if (!config.ImplementationTypes.Any(x => x.IsActive))
{
config.ImplementationTypes.OrderBy(x => x.Priority).FirstOrDefault().IsActive = true;
}
if (config.Flags.AutoRecoveryConfiguration.IsStable(config.ActiveImplementation.Type))
{
// Active is stable...
return(config.ActiveImplementation);
}
else
{
// Active is not stable...
config.Flags.AutoRecoveryConfiguration.FailedServices.Add(config.ActiveImplementation.Type);
// Find one that is!
var next = config.ImplementationTypes
// Where not excluded from failover,
.Where(x => !x.ExcludeFromFailover)
// Where not failed already,
.Where(x => !config.Flags.AutoRecoveryConfiguration.FailedServices.Contains(x.Type))
// and then Ordered by priority.
.OrderBy(x => x.Priority)
.FirstOrDefault();
config.SetActive(next);
return(next);
}
}
public ImplementationTypeDescriptor Resolve <T>(HotSwapInternalConfiguration <T> config)
where T : class
{
// If we don't have a default service, set one
if (config.ImplementationTypes.All(x => !x.IsActive))
{
config.ImplementationTypes.First().IsActive = true;
config.ImplementationTypes.First().IsDefault = true;
}
return(config.ImplementationTypes.Single(x => x.IsActive));
}
public ImplementationTypeDescriptor Resolve <T>(HotSwapInternalConfiguration <T> config)
where T : class
{
var impl = config.ImplementationTypes.ElementAt(config.Flags.RoundRobinConfiguration.IndexCurrent);
if (config.Flags.RoundRobinConfiguration.IsAtMax)
{
config.Flags.RoundRobinConfiguration.IndexCurrent = 0;
}
else
{
config.Flags.RoundRobinConfiguration.IndexCurrent++;
}
return(impl);
}
public FailoverMonitor(HotSwapInternalConfiguration <TInterface> config)
{
this.config = config;
}