public T get()

in boot/src/main/java/org/apache/karaf/minho/boot/service/ServiceRegistry.java [49:62]

• 14 lines of code
• 3 McCabe index (conditional complexity)

    public <T> T get(final Class<T> serviceClass) {
        return serviceClass.cast(ofNullable(registry.get(serviceClass)) // direct lookup, faster
                .orElseGet(() -> { // fallback (hierarchy)
                    final var selected = findByType(serviceClass).collect(toList());
                    switch (selected.size()) {
                        case 0:
                            return null;
                        case 1:
                            return selected.iterator().next();
                        default:
                            throw new IllegalStateException("Ambiguous service lookup: " + serviceClass);
                    }
                }));
    }