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 static org.opendaylight.controller.config.manager.impl.util.OsgiRegistrationUtil.registerService;
  11 import static org.opendaylight.controller.config.manager.impl.util.OsgiRegistrationUtil.wrap;
  12 import java.lang.management.ManagementFactory;
  13 import java.util.Arrays;
  14 import java.util.List;
  15 import javax.management.InstanceAlreadyExistsException;
  16 import javax.management.MBeanServer;
  17 import org.opendaylight.controller.config.api.ConfigRegistry;
  18 import org.opendaylight.controller.config.manager.impl.ConfigRegistryImpl;
  19 import org.opendaylight.controller.config.manager.impl.jmx.ConfigRegistryJMXRegistrator;
  20 import org.opendaylight.controller.config.manager.impl.jmx.JMXNotifierConfigRegistry;
  21 import org.opendaylight.controller.config.manager.impl.osgi.mapping.BindingContextProvider;
  22 import org.opendaylight.controller.config.manager.impl.osgi.mapping.ModuleInfoBundleTracker;
  23 import org.opendaylight.controller.config.manager.impl.osgi.mapping.RefreshingSCPModuleInfoRegistry;
  24 import org.opendaylight.controller.config.manager.impl.util.OsgiRegistrationUtil;
  25 import org.opendaylight.controller.config.spi.ModuleFactory;
  26 import org.opendaylight.yangtools.sal.binding.generator.impl.GeneratedClassLoadingStrategy;
  27 import org.opendaylight.yangtools.sal.binding.generator.impl.ModuleInfoBackedContext;
  28 import org.osgi.framework.BundleActivator;
  29 import org.osgi.framework.BundleContext;
  30 import org.osgi.util.tracker.ServiceTracker;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 public class ConfigManagerActivator implements BundleActivator {
  35
  36     private static final Logger LOG = LoggerFactory.getLogger(ConfigManagerActivator.class);
  37
  38     private final MBeanServer configMBeanServer = ManagementFactory.getPlatformMBeanServer();
  39
  40     private AutoCloseable autoCloseable;
  41
  42     @Override
  43     public void start(final BundleContext context) {
  44         try {
  45             ModuleInfoBackedContext moduleInfoBackedContext = ModuleInfoBackedContext.create();// the inner strategy is backed by thread context cl?
  46
  47             BindingContextProvider bindingContextProvider = new BindingContextProvider();
  48
  49             RefreshingSCPModuleInfoRegistry moduleInfoRegistryWrapper = new RefreshingSCPModuleInfoRegistry(
  50                     moduleInfoBackedContext, moduleInfoBackedContext, moduleInfoBackedContext, moduleInfoBackedContext, bindingContextProvider, context);
  51
  52             ModuleInfoBundleTracker moduleInfoBundleTracker = new ModuleInfoBundleTracker(context, moduleInfoRegistryWrapper);
  53
  54             // start config registry
  55             BundleContextBackedModuleFactoriesResolver bundleContextBackedModuleFactoriesResolver = new BundleContextBackedModuleFactoriesResolver(
  56                     context);
  57             ConfigRegistryImpl configRegistry = new ConfigRegistryImpl(bundleContextBackedModuleFactoriesResolver, configMBeanServer,
  58                     bindingContextProvider);
  59
  60             // track bundles containing factories
  61             BlankTransactionServiceTracker blankTransactionServiceTracker = new BlankTransactionServiceTracker(
  62                     configRegistry);
  63             ModuleFactoryBundleTracker moduleFactoryTracker = new ModuleFactoryBundleTracker(
  64                     blankTransactionServiceTracker);
  65
  66             // start extensible tracker
  67             ExtensibleBundleTracker<?> moduleFactoryBundleTracker = new ExtensibleBundleTracker<>(context,
  68                     moduleFactoryTracker);
  69             moduleFactoryBundleTracker.open();
  70
  71             moduleInfoBundleTracker.open();
  72
  73             // Wrap config registry with JMX notification publishing adapter
  74             final JMXNotifierConfigRegistry notifyingConfigRegistry =
  75                     new JMXNotifierConfigRegistry(configRegistry, configMBeanServer);
  76
  77             // register config registry to OSGi
  78             AutoCloseable clsReg = registerService(context, moduleInfoBackedContext, GeneratedClassLoadingStrategy.class);
  79             AutoCloseable configRegReg = registerService(context, notifyingConfigRegistry, ConfigRegistry.class);
  80
  81             // register config registry to jmx
  82             ConfigRegistryJMXRegistrator configRegistryJMXRegistrator = new ConfigRegistryJMXRegistrator(configMBeanServer);
  83             try {
  84                 configRegistryJMXRegistrator.registerToJMXNoNotifications(configRegistry);
  85             } catch (InstanceAlreadyExistsException e) {
  86                 throw new IllegalStateException("Config Registry was already registered to JMX", e);
  87             }
  88
  89             // register config registry to jmx
  90             final ConfigRegistryJMXRegistrator configRegistryJMXRegistratorWithNotifications = new ConfigRegistryJMXRegistrator(configMBeanServer);
  91             try {
  92                 configRegistryJMXRegistrator.registerToJMX(notifyingConfigRegistry);
  93             } catch (InstanceAlreadyExistsException e) {
  94                 throw new IllegalStateException("Config Registry was already registered to JMX", e);
  95             }
  96
  97             // TODO wire directly via moduleInfoBundleTracker
  98             ServiceTracker<ModuleFactory, Object> serviceTracker = new ServiceTracker<>(context, ModuleFactory.class,
  99                     blankTransactionServiceTracker);
 100             serviceTracker.open();
 101
 102             List<AutoCloseable> list = Arrays.asList(bindingContextProvider, clsReg, configRegistry,
 103                     wrap(moduleFactoryBundleTracker), moduleInfoBundleTracker,
 104                     configRegReg, configRegistryJMXRegistrator, configRegistryJMXRegistratorWithNotifications, wrap(serviceTracker), moduleInfoRegistryWrapper, notifyingConfigRegistry);
 105             autoCloseable = OsgiRegistrationUtil.aggregate(list);
 106         } catch(Exception e) {
 107             LOG.warn("Error starting config manager", e);
 108         } catch(Error e) {
 109             // Log JVM Error and re-throw. The OSGi container may silently fail the bundle and not always log
 110             // the exception. This has been seen on initial feature install.
 111             LOG.error("Error starting config manager", e);
 112             throw e;
 113         }
 114     }
 115
 116     @Override
 117     public void stop(final BundleContext context) throws Exception {
 118         autoCloseable.close();
 119     }
 120 }