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.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     @Override
  48     public void start(final BundleContext context) {
  49         try {
  50             AggregatedNetconfOperationServiceFactory factoriesListener = new AggregatedNetconfOperationServiceFactory();
  51             startOperationServiceFactoryTracker(context, factoriesListener);
  52
  53             SessionIdProvider idProvider = new SessionIdProvider();
  54             timer = new HashedWheelTimer();
  55
  56             long connectionTimeoutMillis = NetconfConfiguration.DEFAULT_TIMEOUT_MILLIS;
  57
  58             final NetconfMonitoringServiceImpl monitoringService = startMonitoringService(context, factoriesListener);
  59
  60             NetconfServerSessionNegotiatorFactory serverNegotiatorFactory = new NetconfServerSessionNegotiatorFactoryBuilder()
  61                     .setAggregatedOpService(factoriesListener)
  62                     .setTimer(timer)
  63                     .setIdProvider(idProvider)
  64                     .setMonitoringService(monitoringService)
  65                     .setConnectionTimeoutMillis(connectionTimeoutMillis)
  66                     .build();
  67
  68             eventLoopGroup = new NioEventLoopGroup();
  69
  70             ServerChannelInitializer serverChannelInitializer = new ServerChannelInitializer(
  71                     serverNegotiatorFactory);
  72             NetconfServerDispatcherImpl dispatch = new NetconfServerDispatcherImpl(serverChannelInitializer, eventLoopGroup, eventLoopGroup);
  73
  74             LocalAddress address = NetconfConfiguration.NETCONF_LOCAL_ADDRESS;
  75             LOG.trace("Starting local netconf server at {}", address);
  76             dispatch.createLocalServer(address);
  77
  78             final ServiceTracker<NetconfNotificationCollector, NetconfNotificationCollector> notificationServiceTracker =
  79                     new ServiceTracker<>(context, NetconfNotificationCollector.class, new ServiceTrackerCustomizer<NetconfNotificationCollector, NetconfNotificationCollector>() {
  80                         @Override
  81                         public NetconfNotificationCollector addingService(ServiceReference<NetconfNotificationCollector> reference) {
  82                             Preconditions.checkState(listenerReg == null, "Notification collector service was already added");
  83                             listenerReg = context.getService(reference).registerBaseNotificationPublisher();
  84                             monitoringService.setNotificationPublisher(listenerReg);
  85                             return null;
  86                         }
  87
  88                         @Override
  89                         public void modifiedService(ServiceReference<NetconfNotificationCollector> reference, NetconfNotificationCollector service) {
  90
  91                         }
  92
  93                         @Override
  94                         public void removedService(ServiceReference<NetconfNotificationCollector> reference, NetconfNotificationCollector service) {
  95                             listenerReg.close();
  96                             listenerReg = null;
  97                             monitoringService.setNotificationPublisher(listenerReg);
  98                         }
  99                     });
 100             notificationServiceTracker.open();
 101         } catch (Exception e) {
 102             LOG.warn("Unable to start NetconfImplActivator", e);
 103         }
 104     }
 105
 106     private void startOperationServiceFactoryTracker(BundleContext context, NetconfOperationServiceFactoryListener factoriesListener) {
 107         factoriesTracker = new NetconfOperationServiceFactoryTracker(context, factoriesListener);
 108         factoriesTracker.open();
 109     }
 110
 111     private NetconfMonitoringServiceImpl startMonitoringService(BundleContext context, AggregatedNetconfOperationServiceFactory factoriesListener) {
 112         NetconfMonitoringServiceImpl netconfMonitoringServiceImpl = new NetconfMonitoringServiceImpl(factoriesListener);
 113         Dictionary<String, ?> dic = new Hashtable<>();
 114         regMonitoring = context.registerService(NetconfMonitoringService.class, netconfMonitoringServiceImpl, dic);
 115
 116         return netconfMonitoringServiceImpl;
 117     }
 118
 119     @Override
 120     public void stop(final BundleContext context) {
 121         LOG.info("Shutting down netconf because YangStoreService service was removed");
 122
 123         eventLoopGroup.shutdownGracefully(0, 1, TimeUnit.SECONDS);
 124         timer.stop();
 125
 126         regMonitoring.unregister();
 127         factoriesTracker.close();
 128     }
 129 }