public void attach(
      SystemConnectionSource source,
      PhysicalConnectionTarget target,
      ChannelConnection connection) {
    URI sourceUri = source.getUri();
    URI sourceName = UriHelper.getDefragmentedName(sourceUri);
    SystemComponent component = (SystemComponent) manager.getComponent(sourceName);
    Injectable injectable = source.getInjectable();
    Class<?> type = source.getServiceInterface();

    Supplier<?> supplier;
    if (source.isDirectConnection()) {
      supplier = connection.getDirectConnection().get();
    } else {
      supplier = proxyService.createSupplier(type, connection);
    }

    component.setSupplier(injectable, supplier);
  }