opendaylight/md-sal/sal-remoterpc-connector/implementation/src/main/java/org/opendaylight/controller/sal/connector/remoterpc/RoutingTableProvider.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.sal.connector.remoterpc;
  10
  11 import com.google.common.base.Optional;
  12 import org.opendaylight.controller.sal.connector.api.RpcRouter;
  13 import org.opendaylight.controller.sal.connector.remoterpc.api.RouteChangeListener;
  14 import org.opendaylight.controller.sal.connector.remoterpc.api.RoutingTable;
  15 import org.opendaylight.controller.sal.connector.remoterpc.dto.RouteIdentifierImpl;
  16 import org.opendaylight.controller.sal.connector.remoterpc.impl.RoutingTableImpl;
  17 import org.osgi.framework.BundleContext;
  18 import org.osgi.util.tracker.ServiceTracker;
  19
  20 public class RoutingTableProvider implements AutoCloseable {
  21
  22     @SuppressWarnings("rawtypes")
  23     final ServiceTracker<RoutingTable,RoutingTable> tracker;
  24
  25     private RoutingTableImpl routingTableImpl = null;
  26
  27     //final private RouteChangeListener routeChangeListener;
  28
  29
  30     public RoutingTableProvider(BundleContext ctx){//,RouteChangeListener rcl) {
  31         @SuppressWarnings("rawtypes")
  32         ServiceTracker<RoutingTable, RoutingTable> rawTracker = new ServiceTracker<>(ctx, RoutingTable.class, null);
  33         tracker = rawTracker;
  34         tracker.open();
  35
  36         //routeChangeListener = rcl;
  37     }
  38
  39     public Optional<RoutingTable<RpcRouter.RouteIdentifier, String>> getRoutingTable() {
  40         @SuppressWarnings("unchecked")
  41         RoutingTable<RpcRouter.RouteIdentifier,String> tracked = tracker.getService();
  42
  43         if(tracked instanceof RoutingTableImpl){
  44             if(routingTableImpl != tracked){
  45              routingTableImpl= (RoutingTableImpl)tracked;
  46              //routingTableImpl.setRouteChangeListener(routeChangeListener);
  47             }
  48         }
  49
  50         return Optional.fromNullable(tracked);
  51     }
  52
  53     @Override
  54     public void close() throws Exception {
  55         tracker.close();
  56     }
  57 }