import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
-import org.opendaylight.controller.sal.core.Node;
-import org.opendaylight.controller.sal.core.NodeConnector;
import org.opendaylight.controller.sal.core.Property;
import org.opendaylight.controller.sal.core.UpdateType;
import org.opendaylight.ovsdb.lib.message.TableUpdate;
import org.opendaylight.ovsdb.plugin.api.OvsdbConfigurationService;
import org.opendaylight.ovsdb.plugin.api.OvsdbInventoryListener;
import org.opendaylight.ovsdb.plugin.api.OvsdbInventoryService;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
import com.google.common.collect.Sets;
import org.slf4j.Logger;