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 org.opendaylight.controller.sal.connector.api.RpcRouter;
  12 import org.opendaylight.controller.sal.connector.remoterpc.api.RoutingTable;
  13 import org.opendaylight.controller.sal.connector.remoterpc.impl.RoutingTableImpl;
  14 import org.osgi.framework.BundleContext;
  15 import org.osgi.util.tracker.ServiceTracker;
  16
  17 import com.google.common.base.Optional;
  18
  19 public class RoutingTableProvider implements AutoCloseable {
  20
  21     @SuppressWarnings("rawtypes")
  22     final ServiceTracker<RoutingTable,RoutingTable> tracker;
  23
  24     private RoutingTableImpl<?, ?> routingTableImpl = null;
  25
  26     //final private RouteChangeListener routeChangeListener;
  27
  28
  29     public RoutingTableProvider(BundleContext ctx){//,RouteChangeListener rcl) {
  30         @SuppressWarnings("rawtypes")
  31         ServiceTracker<RoutingTable, RoutingTable> rawTracker = new ServiceTracker<>(ctx, RoutingTable.class, null);
  32         tracker = rawTracker;
  33         tracker.open();
  34
  35         //routeChangeListener = rcl;
  36     }
  37
  38     public Optional<RoutingTable<RpcRouter.RouteIdentifier<?, ?, ?>, String>> getRoutingTable() {
  39         @SuppressWarnings("unchecked")
  40         RoutingTable<RpcRouter.RouteIdentifier<?, ?, ?>, String> tracked = tracker.getService();
  41
  42         if(tracked instanceof RoutingTableImpl){
  43             if(routingTableImpl != tracked){
  44              routingTableImpl= (RoutingTableImpl<?, ?>)tracked;
  45              //routingTableImpl.setRouteChangeListener(routeChangeListener);
  46             }
  47         }
  48
  49         return Optional.fromNullable(tracked);
  50     }
  51
  52     @Override
  53     public void close() throws Exception {
  54         tracker.close();
  55     }
  56 }