private RemoteHostPool CreatePool(
ServiceDeployment serviceDeployment,
List <IDisposable> blockLinks,
ServiceDiscoverySourceBase discoverySource)
{
var result = _remoteHostPoolFactory.Create(serviceDeployment, discoverySource, _reachabilityChecker);
var dispose = result.EndPointsChanged.LinkTo(new ActionBlock <EndPointsResult>(m =>
{
if (result == MasterEnvironmentPool || result == OriginatingEnvironmentPool)
{
FireEndPointChange();
}
}));
blockLinks.Add(dispose);
dispose = result.ReachabilitySource.LinkTo(new ActionBlock <ServiceReachabilityStatus>(x =>
{
if (result == _activePool && !_suppressNotifications)
{
_reachabilityChanged.Post(x);
}
}));
blockLinks.Add(dispose);
return(result);
}
private async Task ReloadRemoteHost(DiscoveryConfig newConfig)
{
var newServiceConfig = newConfig.Services[_serviceName];
lock (_locker)
{
if (newServiceConfig.Equals(LastServiceConfig) &&
newConfig.EnvironmentFallbackEnabled == LastConfig.EnvironmentFallbackEnabled)
{
return;
}
}
var shouldCreateMasterPool = newConfig.EnvironmentFallbackEnabled &&
newServiceConfig.SupportsFallback &&
_originatingDeployment.Equals(_masterDeployment) == false;
ServiceDiscoverySourceBase masterSource = null;
var originatingSource = await GetServiceDiscoverySource(_originatingDeployment, newServiceConfig).ConfigureAwait(false);
if (shouldCreateMasterPool)
{
masterSource = await GetServiceDiscoverySource(_masterDeployment, newServiceConfig).ConfigureAwait(false);
}
lock (_locker)
{
_suppressNotifications = true;
LastConfig = newConfig;
LastServiceConfig = newServiceConfig;
RemoveOriginatingPool();
OriginatingEnvironmentPool = CreatePool(_originatingDeployment, _originatingEnvironmentLinks, originatingSource);
RemoveMasterPool();
if (masterSource != null)
{
MasterEnvironmentPool = CreatePool(_masterDeployment, _masterEnvironmentLinks, masterSource);
}
_suppressNotifications = false;
GetRelevantPool();
}
}