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.osgi.NetconfConfigUtil;
  27 import org.opendaylight.netconf.util.osgi.NetconfConfiguration;
  28 import org.osgi.framework.BundleActivator;
  29 import org.osgi.framework.BundleContext;
  30 import org.osgi.framework.ServiceReference;
  31 import org.osgi.framework.ServiceRegistration;
  32 import org.osgi.util.tracker.ServiceTracker;
  33 import org.osgi.util.tracker.ServiceTrackerCustomizer;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 public class NetconfImplActivator implements BundleActivator {
  38
  39     private static final Logger LOG = LoggerFactory.getLogger(NetconfImplActivator.class);
  40
  41     private NetconfOperationServiceFactoryTracker factoriesTracker;
  42     private NioEventLoopGroup eventLoopGroup;
  43     private HashedWheelTimer timer;
  44     private ServiceRegistration<NetconfMonitoringService> regMonitoring;
  45
  46     private BaseNotificationPublisherRegistration listenerReg;
  47
  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 = new NetconfServerSessionNegotiatorFactoryBuilder()
  62                     .setAggregatedOpService(factoriesListener)
  63                     .setTimer(timer)
  64                     .setIdProvider(idProvider)
  65                     .setMonitoringService(monitoringService)
  66                     .setConnectionTimeoutMillis(connectionTimeoutMillis)
  67                     .build();
  68
  69             eventLoopGroup = new NioEventLoopGroup();
  70
  71             ServerChannelInitializer serverChannelInitializer = new ServerChannelInitializer(
  72                     serverNegotiatorFactory);
  73             NetconfServerDispatcherImpl dispatch = new NetconfServerDispatcherImpl(serverChannelInitializer, eventLoopGroup, eventLoopGroup);
  74
  75             LocalAddress address = NetconfConfiguration.NETCONF_LOCAL_ADDRESS;
  76             LOG.trace("Starting local netconf server at {}", address);
  77             dispatch.createLocalServer(address);
  78
  79             final ServiceTracker<NetconfNotificationCollector, NetconfNotificationCollector> notificationServiceTracker =
  80                     new ServiceTracker<>(context, NetconfNotificationCollector.class, new ServiceTrackerCustomizer<NetconfNotificationCollector, NetconfNotificationCollector>() {
  81                         @Override
  82                         public NetconfNotificationCollector addingService(ServiceReference<NetconfNotificationCollector> reference) {
  83                             Preconditions.checkState(listenerReg == null, "Notification collector service was already added");
  84                             listenerReg = context.getService(reference).registerBaseNotificationPublisher();
  85                             monitoringService.setNotificationPublisher(listenerReg);
  86                             return null;
  87                         }
  88
  89                         @Override
  90                         public void modifiedService(ServiceReference<NetconfNotificationCollector> reference, NetconfNotificationCollector service) {
  91
  92                         }
  93
  94                         @Override
  95                         public void removedService(ServiceReference<NetconfNotificationCollector> reference, NetconfNotificationCollector service) {
  96                             listenerReg.close();
  97                             listenerReg = null;
  98                             monitoringService.setNotificationPublisher(listenerReg);
  99                         }
 100                     });
 101             notificationServiceTracker.open();
 102         } catch (Exception e) {
 103             LOG.warn("Unable to start NetconfImplActivator", e);
 104         }
 105     }
 106
 107     private void startOperationServiceFactoryTracker(BundleContext context, NetconfOperationServiceFactoryListener factoriesListener) {
 108         factoriesTracker = new NetconfOperationServiceFactoryTracker(context, factoriesListener);
 109         factoriesTracker.open();
 110     }
 111
 112     private NetconfMonitoringServiceImpl startMonitoringService(BundleContext context, AggregatedNetconfOperationServiceFactory factoriesListener) {
 113         NetconfMonitoringServiceImpl netconfMonitoringServiceImpl = new NetconfMonitoringServiceImpl(factoriesListener);
 114         Dictionary<String, ?> dic = new Hashtable<>();
 115         regMonitoring = context.registerService(NetconfMonitoringService.class, netconfMonitoringServiceImpl, dic);
 116
 117         return netconfMonitoringServiceImpl;
 118     }
 119
 120     @Override
 121     public void stop(final BundleContext context) {
 122         LOG.info("Shutting down netconf because YangStoreService service was removed");
 123
 124         eventLoopGroup.shutdownGracefully(0, 1, TimeUnit.SECONDS);
 125         timer.stop();
 126
 127         regMonitoring.unregister();
 128         factoriesTracker.close();
 129     }
 130 }