opendaylight/netconf/config-netconf-connector/src/main/java/org/opendaylight/controller/netconf/confignetconfconnector/osgi/Activator.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
   9 package org.opendaylight.controller.netconf.confignetconfconnector.osgi;
  10
  11 import org.opendaylight.controller.config.yang.store.api.YangStoreService;
  12 import org.opendaylight.controller.netconf.mapping.api.NetconfOperationServiceFactory;
  13 import org.osgi.framework.BundleActivator;
  14 import org.osgi.framework.BundleContext;
  15 import org.osgi.framework.ServiceRegistration;
  16 import org.slf4j.Logger;
  17 import org.slf4j.LoggerFactory;
  18
  19 import java.util.Hashtable;
  20
  21 import static com.google.common.base.Preconditions.checkState;
  22
  23 public class Activator implements BundleActivator, YangStoreServiceTracker.YangStoreTrackerListener {
  24
  25     private static final Logger logger = LoggerFactory.getLogger(Activator.class);
  26
  27     private BundleContext context;
  28     ServiceRegistration osgiRegistration;
  29
  30     @Override
  31     public void start(BundleContext context) throws Exception {
  32         this.context = context;
  33         YangStoreServiceTracker tracker = new YangStoreServiceTracker(context, this);
  34         tracker.open();
  35     }
  36
  37     @Override
  38     public void stop(BundleContext context) throws Exception {
  39     }
  40
  41     @Override
  42     public synchronized void onYangStoreAdded(YangStoreService yangStoreService) {
  43         checkState(osgiRegistration == null, "More than one onYangStoreAdded received");
  44         NetconfOperationServiceFactoryImpl factory = new NetconfOperationServiceFactoryImpl(yangStoreService);
  45         logger.debug("Registering into OSGi");
  46         osgiRegistration = context.registerService(new String[]{NetconfOperationServiceFactory.class.getName()}, factory,
  47                 new Hashtable<String, Object>());
  48     }
  49
  50     @Override
  51     public synchronized void onYangStoreRemoved() {
  52         osgiRegistration.unregister();
  53         osgiRegistration = null;
  54     }
  55 }