opendaylight/netconf/netconf-impl/src/main/java/org/opendaylight/controller/netconf/impl/osgi/NetconfImplActivator.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 package org.opendaylight.controller.netconf.impl.osgi;
   9
  10 import io.netty.channel.local.LocalAddress;
  11 import io.netty.channel.nio.NioEventLoopGroup;
  12 import io.netty.util.HashedWheelTimer;
  13 import java.util.Dictionary;
  14 import java.util.Hashtable;
  15 import java.util.concurrent.TimeUnit;
  16 import org.opendaylight.controller.netconf.api.monitoring.NetconfMonitoringService;
  17 import org.opendaylight.controller.netconf.impl.NetconfServerDispatcherImpl;
  18 import org.opendaylight.controller.netconf.impl.NetconfServerSessionNegotiatorFactory;
  19 import org.opendaylight.controller.netconf.impl.SessionIdProvider;
  20 import org.opendaylight.controller.netconf.mapping.api.NetconfOperationServiceFactoryListener;
  21 import org.opendaylight.controller.netconf.notifications.BaseNotificationPublisherRegistration;
  22 import org.opendaylight.controller.netconf.notifications.NetconfNotificationCollector;
  23 import org.opendaylight.controller.netconf.util.osgi.NetconfConfigUtil;
  24 import org.osgi.framework.BundleActivator;
  25 import org.osgi.framework.BundleContext;
  26 import org.osgi.framework.ServiceReference;
  27 import org.osgi.framework.ServiceRegistration;
  28 import org.osgi.util.tracker.ServiceTracker;
  29 import org.osgi.util.tracker.ServiceTrackerCustomizer;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 public class NetconfImplActivator implements BundleActivator {
  34
  35     private static final Logger LOG = LoggerFactory.getLogger(NetconfImplActivator.class);
  36
  37     private NetconfOperationServiceFactoryTracker factoriesTracker;
  38     private NioEventLoopGroup eventLoopGroup;
  39     private HashedWheelTimer timer;
  40     private ServiceRegistration<NetconfMonitoringService> regMonitoring;
  41
  42     private BaseNotificationPublisherRegistration listenerReg;
  43
  44     @Override
  45     public void start(final BundleContext context)  {
  46         try {
  47             AggregatedNetconfOperationServiceFactory factoriesListener = new AggregatedNetconfOperationServiceFactory();
  48             startOperationServiceFactoryTracker(context, factoriesListener);
  49
  50             SessionIdProvider idProvider = new SessionIdProvider();
  51             timer = new HashedWheelTimer();
  52             long connectionTimeoutMillis = NetconfConfigUtil.extractTimeoutMillis(context);
  53
  54             final NetconfMonitoringServiceImpl monitoringService = startMonitoringService(context, factoriesListener);
  55
  56             NetconfServerSessionNegotiatorFactory serverNegotiatorFactory = new NetconfServerSessionNegotiatorFactory(
  57                     timer, factoriesListener, idProvider, connectionTimeoutMillis, monitoringService);
  58
  59             eventLoopGroup = new NioEventLoopGroup();
  60
  61             NetconfServerDispatcherImpl.ServerChannelInitializer serverChannelInitializer = new NetconfServerDispatcherImpl.ServerChannelInitializer(
  62                     serverNegotiatorFactory);
  63             NetconfServerDispatcherImpl dispatch = new NetconfServerDispatcherImpl(serverChannelInitializer, eventLoopGroup, eventLoopGroup);
  64
  65             LocalAddress address = NetconfConfigUtil.getNetconfLocalAddress();
  66             LOG.trace("Starting local netconf server at {}", address);
  67             dispatch.createLocalServer(address);
  68
  69             final ServiceTracker<NetconfNotificationCollector, NetconfNotificationCollector> notificationServiceTracker =
  70                     new ServiceTracker<>(context, NetconfNotificationCollector.class, new ServiceTrackerCustomizer<NetconfNotificationCollector, NetconfNotificationCollector>() {
  71                         @Override
  72                         public NetconfNotificationCollector addingService(ServiceReference<NetconfNotificationCollector> reference) {
  73                             listenerReg = context.getService(reference).registerBaseNotificationPublisher();
  74                             monitoringService.setNotificationPublisher(listenerReg);
  75                             return null;
  76                         }
  77
  78                         @Override
  79                         public void modifiedService(ServiceReference<NetconfNotificationCollector> reference, NetconfNotificationCollector service) {
  80
  81                         }
  82
  83                         @Override
  84                         public void removedService(ServiceReference<NetconfNotificationCollector> reference, NetconfNotificationCollector service) {
  85                             listenerReg.close();
  86                             listenerReg = null;
  87                             monitoringService.setNotificationPublisher(listenerReg);
  88                         }
  89                     });
  90             notificationServiceTracker.open();
  91         } catch (Exception e) {
  92             LOG.warn("Unable to start NetconfImplActivator", e);
  93         }
  94     }
  95
  96     private void startOperationServiceFactoryTracker(BundleContext context, NetconfOperationServiceFactoryListener factoriesListener) {
  97         factoriesTracker = new NetconfOperationServiceFactoryTracker(context, factoriesListener);
  98         factoriesTracker.open();
  99     }
 100
 101     private NetconfMonitoringServiceImpl startMonitoringService(BundleContext context, AggregatedNetconfOperationServiceFactory factoriesListener) {
 102         NetconfMonitoringServiceImpl netconfMonitoringServiceImpl = new NetconfMonitoringServiceImpl(factoriesListener);
 103         Dictionary<String, ?> dic = new Hashtable<>();
 104         regMonitoring = context.registerService(NetconfMonitoringService.class, netconfMonitoringServiceImpl, dic);
 105
 106         return netconfMonitoringServiceImpl;
 107     }
 108
 109     @Override
 110     public void stop(final BundleContext context) {
 111         LOG.info("Shutting down netconf because YangStoreService service was removed");
 112
 113         eventLoopGroup.shutdownGracefully(0, 1, TimeUnit.SECONDS);
 114         timer.stop();
 115
 116         regMonitoring.unregister();
 117         factoriesTracker.close();
 118     }
 119 }