netconf/netconf-impl/src/main/java/org/opendaylight/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.netconf.impl.osgi;
   9
  10 import com.google.common.base.Preconditions;
  11 import io.netty.channel.local.LocalAddress;
  12 import io.netty.channel.nio.NioEventLoopGroup;
  13 import io.netty.util.HashedWheelTimer;
  14 import java.util.Dictionary;
  15 import java.util.Hashtable;
  16 import java.util.concurrent.TimeUnit;
  17 import org.opendaylight.netconf.api.monitoring.NetconfMonitoringService;
  18 import org.opendaylight.netconf.impl.NetconfServerDispatcherImpl;
  19 import org.opendaylight.netconf.impl.NetconfServerDispatcherImpl.ServerChannelInitializer;
  20 import org.opendaylight.netconf.impl.NetconfServerSessionNegotiatorFactory;
  21 import org.opendaylight.netconf.impl.NetconfServerSessionNegotiatorFactoryBuilder;
  22 import org.opendaylight.netconf.impl.SessionIdProvider;
  23 import org.opendaylight.netconf.mapping.api.NetconfOperationServiceFactoryListener;
  24 import org.opendaylight.netconf.notifications.BaseNotificationPublisherRegistration;
  25 import org.opendaylight.netconf.notifications.NetconfNotificationCollector;
  26 import org.opendaylight.netconf.util.NetconfConfiguration;
  27 import org.osgi.framework.BundleActivator;
  28 import org.osgi.framework.BundleContext;
  29 import org.osgi.framework.ServiceReference;
  30 import org.osgi.framework.ServiceRegistration;
  31 import org.osgi.util.tracker.ServiceTracker;
  32 import org.osgi.util.tracker.ServiceTrackerCustomizer;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35
  36 public class NetconfImplActivator implements BundleActivator {
  37
  38     private static final Logger LOG = LoggerFactory.getLogger(NetconfImplActivator.class);
  39
  40     private NetconfOperationServiceFactoryTracker factoriesTracker;
  41     private NioEventLoopGroup eventLoopGroup;
  42     private HashedWheelTimer timer;
  43     private ServiceRegistration<NetconfMonitoringService> regMonitoring;
  44
  45     private BaseNotificationPublisherRegistration listenerReg;
  46
  47     @SuppressWarnings("checkstyle:IllegalCatch")
  48     @Override
  49     public void start(final BundleContext context) {
  50         try {
  51             AggregatedNetconfOperationServiceFactory factoriesListener = new AggregatedNetconfOperationServiceFactory();
  52             startOperationServiceFactoryTracker(context, factoriesListener);
  53
  54             SessionIdProvider idProvider = new SessionIdProvider();
  55             timer = new HashedWheelTimer();
  56
  57             long connectionTimeoutMillis = NetconfConfiguration.DEFAULT_TIMEOUT_MILLIS;
  58
  59             final NetconfMonitoringServiceImpl monitoringService = startMonitoringService(context, factoriesListener);
  60
  61             NetconfServerSessionNegotiatorFactory serverNegotiatorFactory =
  62                     new NetconfServerSessionNegotiatorFactoryBuilder()
  63                             .setAggregatedOpService(factoriesListener)
  64                             .setTimer(timer)
  65                             .setIdProvider(idProvider)
  66                             .setMonitoringService(monitoringService)
  67                             .setConnectionTimeoutMillis(connectionTimeoutMillis)
  68                             .build();
  69
  70             eventLoopGroup = new NioEventLoopGroup();
  71
  72             ServerChannelInitializer serverChannelInitializer = new ServerChannelInitializer(
  73                     serverNegotiatorFactory);
  74             NetconfServerDispatcherImpl dispatch = new NetconfServerDispatcherImpl(serverChannelInitializer,
  75                     eventLoopGroup, eventLoopGroup);
  76
  77             LocalAddress address = NetconfConfiguration.NETCONF_LOCAL_ADDRESS;
  78             LOG.trace("Starting local netconf server at {}", address);
  79             dispatch.createLocalServer(address);
  80
  81             final ServiceTracker<NetconfNotificationCollector, NetconfNotificationCollector>
  82                     notificationServiceTracker = new ServiceTracker<>(context, NetconfNotificationCollector.class,
  83                     new ServiceTrackerCustomizer<NetconfNotificationCollector, NetconfNotificationCollector>() {
  84                             @Override
  85                             public NetconfNotificationCollector addingService(ServiceReference<
  86                                     NetconfNotificationCollector> reference) {
  87                                 Preconditions.checkState(listenerReg == null,
  88                                         "Notification collector service was already added");
  89                                 listenerReg = context.getService(reference).registerBaseNotificationPublisher();
  90                                 monitoringService.setNotificationPublisher(listenerReg);
  91                                 return null;
  92                             }
  93
  94                             @Override
  95                             public void modifiedService(ServiceReference<NetconfNotificationCollector> reference,
  96                                             NetconfNotificationCollector service) {
  97
  98                                 }
  99
 100                             @Override
 101                             public void removedService(ServiceReference<NetconfNotificationCollector> reference,
 102                                            NetconfNotificationCollector service) {
 103                                 listenerReg.close();
 104                                 listenerReg = null;
 105                                 monitoringService.setNotificationPublisher(listenerReg);
 106                             }
 107                         });
 108             notificationServiceTracker.open();
 109         } catch (Exception e) {
 110             LOG.warn("Unable to start NetconfImplActivator", e);
 111         }
 112     }
 113
 114     private void startOperationServiceFactoryTracker(BundleContext context,
 115                                                      NetconfOperationServiceFactoryListener factoriesListener) {
 116         factoriesTracker = new NetconfOperationServiceFactoryTracker(context, factoriesListener);
 117         factoriesTracker.open();
 118     }
 119
 120     private NetconfMonitoringServiceImpl startMonitoringService(
 121             BundleContext context,
 122             AggregatedNetconfOperationServiceFactory factoriesListener) {
 123         NetconfMonitoringServiceImpl netconfMonitoringServiceImpl = new NetconfMonitoringServiceImpl(factoriesListener);
 124         Dictionary<String, ?> dic = new Hashtable<>();
 125         regMonitoring = context.registerService(NetconfMonitoringService.class, netconfMonitoringServiceImpl, dic);
 126
 127         return netconfMonitoringServiceImpl;
 128     }
 129
 130     @Override
 131     public void stop(final BundleContext context) {
 132         LOG.info("Shutting down netconf because YangStoreService service was removed");
 133
 134         eventLoopGroup.shutdownGracefully(0, 1, TimeUnit.SECONDS);
 135         timer.stop();
 136
 137         regMonitoring.unregister();
 138         factoriesTracker.close();
 139     }
 140 }