Method BeforeOnAllConfigLoadedHandler

lib/icinga/dependency.cpp:153–170

* Checks that adding these new dependencies to the configuration does not introduce any cycles. * * This is done as an optimization: cycles are checked once for all dependencies in a batch of config objects instead * of individually per dependency in Dependency::OnAllConfigLoaded(). For runtime updates, this function may still be * called for single objects. * * @param items Config items con

 * @param items Config items containing Dependency objects added to the running configuration.
 */
void Dependency::BeforeOnAllConfigLoadedHandler(const ConfigItems& items)
{
	DependencyCycleChecker checker;

	// Resolve parent/child names to Checkable::Ptr and temporarily add the edges to the checker.
	// The dependencies are later registered to the checkables by Dependency::OnAllConfigLoaded().
	items.ForEachObject<Dependency>([&checker](Dependency::Ptr dependency) {
		dependency->InitChildParentReferences();
		checker.AddExtraDependency(std::move(dependency));
	});

	// It's sufficient to search for cycles starting from newly added dependencies only: if a newly added dependency is
	// part of a cycle, that cycle is reachable from both the child and the parent of that dependency. The cycle search
	// is started from the parent as a slight optimization as that will traverse fewer edges if there is no cycle.
	items.ForEachObject<Dependency>([&checker](const Dependency::Ptr& dependency) {
		checker.AssertNoCycle(dependency->GetParent());
	});
}

String DependencyNameComposer::MakeName(const String& shortName, const Object::Ptr& context) const
{