opendaylight/config/yang-store-impl/src/main/java/org/opendaylight/controller/config/yang/store/impl/YangStoreActivator.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.controller.config.yang.store.impl;
   9
  10 import java.util.Dictionary;
  11 import java.util.Hashtable;
  12
  13 import org.opendaylight.controller.config.yang.store.api.YangStoreService;
  14 import org.osgi.framework.BundleActivator;
  15 import org.osgi.framework.BundleContext;
  16 import org.osgi.framework.BundleEvent;
  17 import org.osgi.framework.ServiceRegistration;
  18 import org.osgi.util.tracker.BundleTracker;
  19 import org.slf4j.Logger;
  20 import org.slf4j.LoggerFactory;
  21
  22 public class YangStoreActivator implements BundleActivator {
  23
  24     private BundleTracker bundleTracker;
  25     private ServiceRegistration<YangStoreService> registration;
  26     private static final Logger logger = LoggerFactory
  27             .getLogger(YangStoreActivator.class);
  28
  29     @Override
  30     public void start(BundleContext context) throws Exception {
  31         ExtenderYangTrackerCustomizer customizerAndService = new ExtenderYangTrackerCustomizer();
  32         bundleTracker = new BundleTracker(context, BundleEvent.RESOLVED | BundleEvent.UNRESOLVED, customizerAndService);
  33         bundleTracker.open();
  34
  35         Dictionary<String, ?> properties = new Hashtable<>();
  36         registration = context.registerService(YangStoreService.class,
  37                 customizerAndService, properties);
  38     }
  39
  40     @Override
  41     public void stop(BundleContext context) throws Exception {
  42         try {
  43             bundleTracker.close();
  44         } catch (Exception e) {
  45             logger.warn("Exception while closing bundleTracker", e);
  46         }
  47         if (registration != null) {
  48             try {
  49                 registration.unregister();
  50             } catch (Exception e) {
  51                 logger.warn("Exception while unregistring yang store service",
  52                         e);
  53             }
  54         }
  55     }
  56 }