private void resolve(final ServiceDefinition serviceDefinition, final Map<ServiceName, ServiceDefinition> serviceDefinitions, final Set<ServiceName> processed, final Set<ServiceName> visited) throws ServiceRegistryException {
        if (!visited.add(serviceDefinition.getName()))
            throw new CircularDependencyException("Circular dependency discovered: " + visited);
        try {
            if(processed.add(serviceDefinition.getName())) {
                final ServiceBuilder<Service> builder = serviceContainer.buildService(serviceDefinition.getService());

                for (String dependency : serviceDefinition.getDependencies()) {
                    final ServiceName dependencyName = ServiceName.create(dependency);

                    ServiceController<Service> dependencyController = registry.get(dependencyName);
                    if(dependencyController != null) {
                        builder.addDependency(dependencyController);
                        continue;
                    }

                    final ServiceDefinition dependencyDefinition = serviceDefinitions.get(dependencyName);
                    if (dependencyDefinition == null)
                        throw new MissingDependencyException("Missing dependency: " + serviceDefinition.getName() + " depends on " + dependencyName + " which can not be found");

                    resolve(dependencyDefinition, serviceDefinitions, processed, visited);
                    dependencyController = registry.get(dependencyName);
                    if(dependencyController == null)
                        throw new ResolutionException("WTF....");

                    builder.addDependency(dependencyController);
                }

                // We are resolved.  Lets install
                builder.addListener(new ServiceUnregisterListner(serviceDefinition.getName()));
                if (registry.putIfAbsent(serviceDefinition.getName(), builder.create()) != null) {
                    throw new ServiceRegistryException("Duplicate service name provided: " + serviceDefinition.getName());
                }
            }
        } finally {
            visited.remove(serviceDefinition.getName());
        }
    }