/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.kernel.plugins.bootstrap.basic;
import org.jboss.kernel.Kernel;
import org.jboss.kernel.plugins.bootstrap.AbstractKernelInitializer;
import org.jboss.kernel.plugins.registry.AbstractKernelRegistryEntry;
import org.jboss.kernel.spi.config.KernelConfigurator;
import org.jboss.kernel.spi.dependency.KernelController;
import org.jboss.kernel.spi.event.KernelEventManager;
import org.jboss.kernel.spi.registry.KernelBus;
import org.jboss.kernel.spi.registry.KernelRegistry;
import org.jboss.kernel.spi.registry.KernelRegistryEntry;
/**
* Bootstrap the kernel.
*
* @author <a href="adrian@jboss.com">Adrian Brock</a>
* @version $Revision: 1.3 $
*/
public class BasicKernelInitializer extends AbstractKernelInitializer
{
// Constants -----------------------------------------------------
// Attributes ----------------------------------------------------
// Static --------------------------------------------------------
// Constructors --------------------------------------------------
/**
* Create a new basic kernel factory
*
* @throws Exception for any error
*/
public BasicKernelInitializer() throws Exception
{
}
// Public --------------------------------------------------------
// KernelInitializer implementation ------------------------------
public void initKernel(Kernel kernel) throws Throwable
{
KernelRegistry registry = createKernelRegistry(kernel);
if (trace)
log.trace("Using Registry: " + registry);
registry.setKernel(kernel);
kernel.setRegistry(registry);
KernelEventManager eventManager = createKernelEventManager(kernel);
if (trace)
log.trace("Using EventManager: " + eventManager);
eventManager.setKernel(kernel);
kernel.setEventManager(eventManager);
KernelBus bus = createKernelBus(kernel);
if (trace)
log.trace("Using Bus: " + bus);
bus.setKernel(kernel);
kernel.setBus(bus);
KernelConfigurator configurator = createKernelConfigurator(kernel);
if (trace)
log.trace("Using Configurator: " + configurator);
configurator.setKernel(kernel);
kernel.setConfigurator(configurator);
KernelController controller = createKernelController(kernel);
if (trace)
log.trace("Using Controller: " + controller);
controller.setKernel(kernel);
kernel.setController(controller);
// Register everything
register(kernel, KernelConstants.KERNEL_CONFIG_NAME, kernel.getConfig());
register(kernel, KernelConstants.KERNEL_INITIALIZER_NAME, this);
register(kernel, KernelConstants.KERNEL_NAME, kernel);
register(kernel, KernelConstants.KERNEL_REGISTRY_NAME, registry);
register(kernel, KernelConstants.KERNEL_EVENT_MANAGER_NAME, eventManager);
register(kernel, KernelConstants.KERNEL_BUS_NAME, bus);
register(kernel, KernelConstants.KERNEL_CONFIGURATOR_NAME, configurator);
register(kernel, KernelConstants.KERNEL_CONTROLLER_NAME, controller);
}
// Package protected ---------------------------------------------
// Protected -----------------------------------------------------
/**
* Create the kernel bus
*
* @param kernel the kernel
* @return the kernel bus
* @throws Throwable for any error
*/
protected KernelBus createKernelBus(Kernel kernel) throws Throwable
{
return kernel.getConfig().createKernelBus();
}
/**
* Create the configurator
*
* @param kernel the kernel
* @return the configurator
* @throws Throwable for any error
*/
protected KernelConfigurator createKernelConfigurator(Kernel kernel) throws Throwable
{
return kernel.getConfig().createKernelConfigurator();
}
/**
* Create the kernel controller
*
* @param kernel the kernel
* @return the kernel controller
* @throws Throwable for any error
*/
protected KernelController createKernelController(Kernel kernel) throws Throwable
{
return kernel.getConfig().createKernelController();
}
/**
* Create the kernel event manager
*
* @param kernel the kernel
* @return the kernel event manager
* @throws Throwable for any error
*/
protected KernelEventManager createKernelEventManager(Kernel kernel) throws Throwable
{
return kernel.getConfig().createKernelEventManager();
}
/**
* Create the kernel registry
*
* @param kernel the kernel
* @return the kernel registry
* @throws Throwable for any error
*/
protected KernelRegistry createKernelRegistry(Kernel kernel) throws Throwable
{
return kernel.getConfig().createKernelRegistry();
}
/**
* Register an object
*
* @param kernel the kernel
* @param name the name
* @param object the object
*/
protected void register(Kernel kernel, String name, Object object) throws Throwable
{
register(kernel, getName(name), object);
}
/**
* Register an object
*
* @param kernel the kernel
* @param name the name
* @param object the object
*/
protected void register(Kernel kernel, Object name, Object object) throws Throwable
{
KernelRegistryEntry entry = createKernelRegistryEntry(kernel, object);
KernelRegistry registry = kernel.getRegistry();
registry.registerEntry(name, entry);
}
/**
* Get the registration name
*
* @param name the name
* @return the registration name
* @throws Throwable for any error
*/
protected Object getName(String name) throws Throwable
{
return name;
}
/**
* Create a kernel registry entry
*
* @param kernel the kernel
* @param object the object
* @return the entry
*/
protected KernelRegistryEntry createKernelRegistryEntry(Kernel kernel, Object object) throws Throwable
{
// TODO add beaninfo to registry entry?
// KernelConfig config = kernel.getConfig();
// BeanInfoFactory factory = config.getDefaultBeanInfoFactory();
// BeanInfo info = factory.getBeanInfo(object.getClass());
return new AbstractKernelRegistryEntry(object);
}
// Private -------------------------------------------------------
// Inner classes -------------------------------------------------
}