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.Collection;
  15 import java.util.List;
  16 import javax.management.InstanceAlreadyExistsException;
  17 import javax.management.MBeanServer;
  18 import org.opendaylight.controller.config.api.ConfigRegistry;
  19 import org.opendaylight.controller.config.manager.impl.ConfigRegistryImpl;
  20 import org.opendaylight.controller.config.manager.impl.jmx.ConfigRegistryJMXRegistrator;
  21 import org.opendaylight.controller.config.manager.impl.jmx.JMXNotifierConfigRegistry;
  22 import org.opendaylight.controller.config.manager.impl.osgi.mapping.BindingContextProvider;
  23 import org.opendaylight.controller.config.manager.impl.osgi.mapping.ModuleInfoBundleTracker;
  24 import org.opendaylight.controller.config.manager.impl.osgi.mapping.RefreshingSCPModuleInfoRegistry;
  25 import org.opendaylight.controller.config.manager.impl.util.OsgiRegistrationUtil;
  26 import org.opendaylight.controller.config.spi.ModuleFactory;
  27 import org.opendaylight.yangtools.concepts.ObjectRegistration;
  28 import org.opendaylight.yangtools.sal.binding.generator.impl.GeneratedClassLoadingStrategy;
  29 import org.opendaylight.yangtools.sal.binding.generator.impl.ModuleInfoBackedContext;
  30 import org.opendaylight.yangtools.yang.binding.YangModuleInfo;
  31 import org.osgi.framework.Bundle;
  32 import org.osgi.framework.BundleActivator;
  33 import org.osgi.framework.BundleContext;
  34 import org.osgi.util.tracker.BundleTracker;
  35 import org.osgi.util.tracker.ServiceTracker;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 public class ConfigManagerActivator implements BundleActivator {
  40
  41     private static final Logger LOG = LoggerFactory.getLogger(ConfigManagerActivator.class);
  42
  43     private final MBeanServer configMBeanServer = ManagementFactory.getPlatformMBeanServer();
  44
  45     private AutoCloseable autoCloseable;
  46
  47     @Override
  48     public void start(final BundleContext context) {
  49         try {
  50             ModuleInfoBackedContext moduleInfoBackedContext = ModuleInfoBackedContext.create();// the inner strategy is backed by thread context cl?
  51
  52             BindingContextProvider bindingContextProvider = new BindingContextProvider();
  53
  54             RefreshingSCPModuleInfoRegistry moduleInfoRegistryWrapper = new RefreshingSCPModuleInfoRegistry(
  55                     moduleInfoBackedContext, moduleInfoBackedContext, moduleInfoBackedContext, moduleInfoBackedContext, bindingContextProvider, context);
  56
  57             ModuleInfoBundleTracker moduleInfoBundleTracker = new ModuleInfoBundleTracker(context, moduleInfoRegistryWrapper);
  58
  59             // start config registry
  60             BundleContextBackedModuleFactoriesResolver bundleContextBackedModuleFactoriesResolver = new BundleContextBackedModuleFactoriesResolver(
  61                     context);
  62             ConfigRegistryImpl configRegistry = new ConfigRegistryImpl(bundleContextBackedModuleFactoriesResolver, configMBeanServer,
  63                     bindingContextProvider);
  64
  65             // track bundles containing factories
  66             BlankTransactionServiceTracker blankTransactionServiceTracker = new BlankTransactionServiceTracker(
  67                     configRegistry);
  68             ModuleFactoryBundleTracker moduleFactoryTracker = new ModuleFactoryBundleTracker(
  69                     blankTransactionServiceTracker);
  70
  71             boolean scanResolvedBundlesForModuleInfo = false;
  72             BundleTracker<Collection<ObjectRegistration<YangModuleInfo>>> moduleInfoResolvedBundleTracker = null;
  73             ExtensibleBundleTracker<?> moduleFactoryBundleTracker;
  74             if(scanResolvedBundlesForModuleInfo) {
  75                 moduleInfoResolvedBundleTracker = new BundleTracker<>(context, Bundle.RESOLVED | Bundle.STARTING |
  76                             Bundle.STOPPING | Bundle.ACTIVE, moduleInfoBundleTracker);
  77                 moduleFactoryBundleTracker = new ExtensibleBundleTracker<>(context, moduleFactoryTracker);
  78             } else {
  79                 moduleFactoryBundleTracker = new ExtensibleBundleTracker<>(context,
  80                         moduleFactoryTracker, moduleInfoBundleTracker);
  81             }
  82
  83             moduleInfoBundleTracker.open(moduleInfoResolvedBundleTracker);
  84
  85             // start extensible tracker
  86             moduleFactoryBundleTracker.open();
  87
  88             // Wrap config registry with JMX notification publishing adapter
  89             final JMXNotifierConfigRegistry notifyingConfigRegistry =
  90                     new JMXNotifierConfigRegistry(configRegistry, configMBeanServer);
  91
  92             // register config registry to OSGi
  93             AutoCloseable clsReg = registerService(context, moduleInfoBackedContext, GeneratedClassLoadingStrategy.class);
  94             AutoCloseable configRegReg = registerService(context, notifyingConfigRegistry, ConfigRegistry.class);
  95
  96             // register config registry to jmx
  97             ConfigRegistryJMXRegistrator configRegistryJMXRegistrator = new ConfigRegistryJMXRegistrator(configMBeanServer);
  98             try {
  99                 configRegistryJMXRegistrator.registerToJMXNoNotifications(configRegistry);
 100             } catch (InstanceAlreadyExistsException e) {
 101                 throw new IllegalStateException("Config Registry was already registered to JMX", e);
 102             }
 103
 104             // register config registry to jmx
 105             final ConfigRegistryJMXRegistrator configRegistryJMXRegistratorWithNotifications = new ConfigRegistryJMXRegistrator(configMBeanServer);
 106             try {
 107                 configRegistryJMXRegistrator.registerToJMX(notifyingConfigRegistry);
 108             } catch (InstanceAlreadyExistsException e) {
 109                 throw new IllegalStateException("Config Registry was already registered to JMX", e);
 110             }
 111
 112             // TODO wire directly via moduleInfoBundleTracker
 113             ServiceTracker<ModuleFactory, Object> serviceTracker = new ServiceTracker<>(context, ModuleFactory.class,
 114                     blankTransactionServiceTracker);
 115             serviceTracker.open();
 116
 117             List<AutoCloseable> list = Arrays.asList(bindingContextProvider, clsReg, configRegistry,
 118                     wrap(moduleFactoryBundleTracker), moduleInfoBundleTracker,
 119                     configRegReg, configRegistryJMXRegistrator, configRegistryJMXRegistratorWithNotifications, wrap(serviceTracker), moduleInfoRegistryWrapper, notifyingConfigRegistry);
 120             autoCloseable = OsgiRegistrationUtil.aggregate(list);
 121         } catch(Exception e) {
 122             LOG.warn("Error starting config manager", e);
 123         } catch(Error e) {
 124             // Log JVM Error and re-throw. The OSGi container may silently fail the bundle and not always log
 125             // the exception. This has been seen on initial feature install.
 126             LOG.error("Error starting config manager", e);
 127             throw e;
 128         }
 129     }
 130
 131     @Override
 132     public void stop(final BundleContext context) throws Exception {
 133         autoCloseable.close();
 134     }
 135 }