private IServiceTopology LocateInner(string environmentName, string applicationName)
{
var currentEnvironmentName = environmentName;
// Note(kungurtsev): not return null, if application was found in some skipped environment.
IServiceTopology firstResolved = null;
for (var depth = 0; depth < settings.MaximumEnvironmentsDepth; depth++)
{
var environment = environmentsStorage.Get(currentEnvironmentName);
if (environment == null)
{
return(firstResolved);
}
var topology = applicationsStorage.Get(currentEnvironmentName, applicationName).ServiceTopology;
firstResolved = firstResolved ?? topology;
var parentEnvironment = environment.ParentEnvironment;
if (parentEnvironment == null)
{
return(topology ?? firstResolved);
}
var goToParent = topology == null || topology.Replicas.Count == 0 && environment.SkipIfEmpty();
if (!goToParent)
{
return(topology);
}
currentEnvironmentName = parentEnvironment;
}
log.Warn("Cycled when resolving '{Application}' application in '{Environment}'.", applicationName, environmentName);
return(firstResolved);
}
private static void ShouldReturnImmediately(ApplicationsStorage storage, string environment, string application, ServiceTopology topology)
{
storage.Get(environment, application).ServiceTopology.Should().BeEquivalentTo(topology);
}