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