public void doStart()

in config/src/main/java/org/apache/karaf/cellar/config/internal/osgi/Activator.java [66:125]
54 lines of code
5 McCabe index (conditional complexity)

    public void doStart() throws Exception {

        ClusterManager clusterManager = getTrackedService(ClusterManager.class);
        if (clusterManager == null)
            return;
        GroupManager groupManager = getTrackedService(GroupManager.class);
        if (groupManager == null)
            return;
        ConfigurationAdmin configurationAdmin = getTrackedService(ConfigurationAdmin.class);
        if (configurationAdmin == null)
            return;
        EventProducer eventProducer = getTrackedService(EventProducer.class);
        if (eventProducer == null)
            return;

        File storage = new File(getString("storage", System.getProperty("karaf.etc")));

        LOGGER.debug("CELLAR CONFIG: init event handler");
        configurationEventHandler = new ConfigurationEventHandler();
        configurationEventHandler.setConfigurationAdmin(configurationAdmin);
        configurationEventHandler.setGroupManager(groupManager);
        configurationEventHandler.setClusterManager(clusterManager);
        configurationEventHandler.setStorage(storage);
        configurationEventHandler.init();
        Hashtable props = new Hashtable();
        props.put("managed", "true");
        register(EventHandler.class, configurationEventHandler, props);

        LOGGER.debug("CELLAR CONFIG: init local listener");
        localConfigurationListener = new LocalConfigurationListener();
        localConfigurationListener.setClusterManager(clusterManager);
        localConfigurationListener.setGroupManager(groupManager);
        localConfigurationListener.setConfigurationAdmin(configurationAdmin);
        localConfigurationListener.setEventProducer(eventProducer);
        localConfigurationListener.setStorage(storage);
        localConfigurationListener.init();
        register(ConfigurationListener.class, localConfigurationListener);

        LOGGER.debug("CELLAR CONFIG: init synchronizer");
        configurationSynchronizer = new ConfigurationSynchronizer();
        configurationSynchronizer.setConfigurationAdmin(configurationAdmin);
        configurationSynchronizer.setGroupManager(groupManager);
        configurationSynchronizer.setClusterManager(clusterManager);
        configurationSynchronizer.setEventProducer(eventProducer);
        configurationSynchronizer.setStorage(storage);
        configurationSynchronizer.init(bundleContext);
        props = new Hashtable();
        props.put("resource", "config");
        register(Synchronizer.class, configurationSynchronizer, props);

        LOGGER.debug("CELLAR CONFIG: register MBean");
        CellarConfigMBeanImpl cellarConfigMBean = new CellarConfigMBeanImpl();
        cellarConfigMBean.setClusterManager(clusterManager);
        cellarConfigMBean.setGroupManager(groupManager);
        cellarConfigMBean.setConfigurationAdmin(configurationAdmin);
        cellarConfigMBean.setEventProducer(eventProducer);
        props = new Hashtable();
        props.put("jmx.objectname", "org.apache.karaf.cellar:type=config,name=" + System.getProperty("karaf.name"));
        cellarConfigMBeanRegistration = bundleContext.registerService(getInterfaceNames(cellarConfigMBean), cellarConfigMBean, props);
    }