/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file 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.system.server.profileservice.persistence;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.jboss.managed.api.ManagedObject;
import org.jboss.metatype.api.values.MetaValueFactory;
import org.jboss.metatype.plugins.values.MetaValueFactoryBuilder;
import org.jboss.system.server.profileservice.persistence.xml.PersistedManagedObject;
/**
* A delegating persistence plugin.
*
* @author <a href="mailto:emuckenh@redhat.com">Emanuel Muckenhuber</a>
* @version $Revision$
*/
public class DelegatingPersistencePlugin implements ManagedObjectPersistencePlugin
{
/** The meta data plugins. */
private Map<String, ManagedObjectPersistencePlugin> plugins = new ConcurrentHashMap<String, ManagedObjectPersistencePlugin>();
/** The default plugin. */
private final ManagedObjectPersistencePlugin defaultPlugin;
/** The meta value factory. */
private final MetaValueFactory metaValueFactory = MetaValueFactoryBuilder.create();
/** The value persistence. */
private final AbstractValuePersistence valuePersistence;
/** The value recreation. */
private AbstractValueRecreation valueRecreation;
public DelegatingPersistencePlugin(ManagedObjectRecreationHelper helper)
{
this.valuePersistence = new AbstractValuePersistence(this, metaValueFactory);
this.valueRecreation = new AbstractValueRecreation(this);
this.defaultPlugin = new DefaultManagedObjectPersistencePlugin(valuePersistence, valueRecreation, helper);
}
public String getType()
{
return Object.class.getName();
}
/**
* Get the value recreation.
*
* @return the value recreation
*/
public AbstractValuePersistence getValuePersistence()
{
return this.valuePersistence;
}
/**
* Create a persisted managed object.
*
* @param mo the managed object
* @return the persistence xml meta data for managed object
*/
public PersistedManagedObject createPersistedManagedObject(ManagedObject mo)
{
if(mo == null)
throw new IllegalArgumentException("Null managed object.");
ManagedObjectPersistencePlugin plugin = getPlugin(mo);
return plugin.createPersistedManagedObject(mo);
}
/**
* Create a persisted managed object
*
* @param persisted the persisted managed object
* @param mo the managed object
* @return the persistence xml meta data for managed object
*/
public PersistedManagedObject createPersistedManagedObject(PersistedManagedObject persisted, ManagedObject mo)
{
if(persisted == null)
throw new IllegalArgumentException("Null persisted managed object.");
if(mo == null)
throw new IllegalArgumentException("Null managed object.");
ManagedObjectPersistencePlugin plugin = getPlugin(mo);
return plugin.createPersistedManagedObject(persisted, mo);
}
/**
* Get the value persistence.
*
* @return the value persistence
*/
public AbstractValueRecreation getValueRecreation()
{
return this.valueRecreation;
}
/**
* Create a persisted managed object
*
* @param mo the managed object
* @return the persistence xml meta data for managed object
*/
public ManagedObject createManagedObject(PersistedManagedObject persisted)
{
if(persisted == null)
throw new IllegalArgumentException("null persisted managed object");
ManagedObjectPersistencePlugin plugin = getPlugin(persisted);
return plugin.createManagedObject(persisted);
}
/**
* Create a persisted managed object
*
* @param persisted the persisted managed object
* @param mo the managed object
* @return the persistence xml meta data for managed object
*/
public ManagedObject updateManagedObject(PersistedManagedObject persisted, ManagedObject mo)
{
if(persisted == null)
throw new IllegalArgumentException("null persisted managed object");
if(mo == null)
throw new IllegalArgumentException("null managed object");
ManagedObjectPersistencePlugin plugin = getPlugin(persisted);
return plugin.updateManagedObject(persisted, mo);
}
/**
* Extract the type name and get the plugin.
*
* @param mo the managed object
* @return the managed object plugin
*/
protected ManagedObjectPersistencePlugin getPlugin(ManagedObject mo)
{
String type = mo.getAttachmentName();
if(type == null && mo.getAttachment() != null)
type = mo.getAttachment().getClass().getName();
return getPlugin(type);
}
/**
* Get the plugin registered for persisted managed object.
*
* @param persisted the persisted managed object
* @return the ManagedObject recreation plugin
*/
protected ManagedObjectPersistencePlugin getPlugin(PersistedManagedObject persisted)
{
if(persisted == null)
throw new IllegalArgumentException("null persisted managed object");
String className = persisted.getTemplateName();
if(className == null)
className = persisted.getClassName();
return getPlugin(className);
}
/**
* Get the plugin.
*
* @param type the managed object type
* @return the managed object plugin
*/
public ManagedObjectPersistencePlugin getPlugin(String type)
{
if(type == null)
throw new IllegalArgumentException("Null type.");
ManagedObjectPersistencePlugin plugin = this.plugins.get(type);
if(plugin == null)
plugin = defaultPlugin;
return plugin;
}
/**
* Add a managed object plugin.
*
* @param plugin the plugin to add
*/
public void addPlugin(ManagedObjectPersistencePlugin plugin)
{
if(plugin == null)
throw new IllegalArgumentException("Null plugin.");
if(plugin.getType() == null)
throw new IllegalArgumentException("Null plugin type.");
this.plugins.put(plugin.getType(), plugin);
}
/**
* Remove a managed object plugin.
*
* @param plugin the plugin to remove
*/
public void removePlugin(ManagedObjectPersistencePlugin plugin)
{
if(plugin == null)
throw new IllegalArgumentException("Null plugin.");
if(plugin.getType() == null)
throw new IllegalArgumentException("Null plugin type.");
this.plugins.remove(plugin.getType());
}
}