opendaylight/config/config-manager/src/main/java/org/opendaylight/controller/config/manager/impl/osgi/ConfigManagerActivator.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.manager.impl.osgi;
   9
  10 import java.lang.management.ManagementFactory;
  11
  12 import javax.management.MBeanServer;
  13
  14 import org.opendaylight.controller.config.manager.impl.ConfigRegistryImpl;
  15 import org.opendaylight.controller.config.manager.impl.jmx.ConfigRegistryJMXRegistrator;
  16 import org.opendaylight.controller.config.spi.ModuleFactory;
  17 import org.osgi.framework.BundleActivator;
  18 import org.osgi.framework.BundleContext;
  19 import org.osgi.framework.ServiceRegistration;
  20 import org.osgi.util.tracker.ServiceTracker;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23
  24 public class ConfigManagerActivator implements BundleActivator {
  25     private static final Logger logger = LoggerFactory
  26             .getLogger(ConfigManagerActivator.class);
  27
  28     private ExtenderBundleTracker extenderBundleTracker;
  29     private ConfigRegistryImpl configRegistry;
  30     private ConfigRegistryJMXRegistrator configRegistryJMXRegistrator;
  31     private ServiceRegistration configRegistryServiceRegistration;
  32
  33     @Override
  34     public void start(BundleContext context) throws Exception {
  35         BundleContextBackedModuleFactoriesResolver bundleContextBackedModuleFactoriesResolver =
  36                 new BundleContextBackedModuleFactoriesResolver(context);
  37         MBeanServer configMBeanServer = ManagementFactory.getPlatformMBeanServer();
  38         configRegistry = new ConfigRegistryImpl(
  39                 bundleContextBackedModuleFactoriesResolver, context,
  40                 configMBeanServer);
  41
  42         // register config registry to OSGi
  43         configRegistryServiceRegistration = context.registerService(ConfigRegistryImpl.class, configRegistry, null);
  44
  45         // register config registry to jmx
  46         configRegistryJMXRegistrator = new ConfigRegistryJMXRegistrator(configMBeanServer);
  47         configRegistryJMXRegistrator.registerToJMX(configRegistry);
  48
  49         // track bundles containing factories
  50         extenderBundleTracker = new ExtenderBundleTracker(context);
  51         extenderBundleTracker.open();
  52
  53         BlankTransactionServiceTracker customizer = new BlankTransactionServiceTracker(configRegistry);
  54         ServiceTracker<?, ?> serviceTracker = new ServiceTracker(context, ModuleFactory.class, customizer);
  55         serviceTracker.open();
  56     }
  57
  58     @Override
  59     public void stop(BundleContext context) throws Exception {
  60         try {
  61             configRegistry.close();
  62         } catch (Exception e) {
  63             logger.warn("Exception while closing config registry", e);
  64         }
  65         try {
  66             extenderBundleTracker.close();
  67         } catch (Exception e) {
  68             logger.warn("Exception while closing extender", e);
  69         }
  70         try {
  71             configRegistryJMXRegistrator.close();
  72         } catch (Exception e) {
  73             logger.warn(
  74                     "Exception while closing config registry jmx registrator",
  75                     e);
  76         }
  77         try {
  78             configRegistryServiceRegistration.unregister();
  79         } catch (Exception e) {
  80             logger.warn("Exception while unregistering config registry", e);
  81         }
  82     }
  83 }