/*
* 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.registry;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import java.util.concurrent.CopyOnWriteArrayList;
import org.jboss.kernel.plugins.AbstractKernelObject;
import org.jboss.kernel.spi.registry.KernelRegistry;
import org.jboss.kernel.spi.registry.KernelRegistryEntry;
import org.jboss.kernel.spi.registry.KernelRegistryEntryNotFoundException;
import org.jboss.kernel.spi.registry.KernelRegistryPlugin;
/**
* Abstract Kernel registry.
*
* @author <a href="adrian@jboss.com">Adrian Brock</a>
* @author <a href="mailto:les.hazlewood@jboss.org">Les A. Hazlewood</a>
* @version $Revision: 69895 $
*/
public abstract class AbstractKernelRegistry extends AbstractKernelObject implements KernelRegistry
{
/** The registry factories */
protected List<KernelRegistryPlugin> factories = new CopyOnWriteArrayList<KernelRegistryPlugin>();
/**
* Create an abstract kernel registry
*
* @throws Exception for any error
*/
public AbstractKernelRegistry() throws Exception
{
}
/**
* Add a kernel registry factory
*
* @param factory the factory to add
*/
public void addKernelRegistryFactory(KernelRegistryPlugin factory)
{
factories.add(factory);
if (log.isTraceEnabled())
log.trace("Registry " + this + " added registry factory " + factory);
}
/**
* Remove a kernel registry factory
*
* @param factory the factory to remove
*/
public void removeKernelRegistryFactory(KernelRegistryPlugin factory)
{
factories.remove(factory);
if (log.isTraceEnabled())
log.trace("Registry " + this + " removed registry factory " + factory);
}
public KernelRegistryEntry getEntry(Object name)
{
for (ListIterator<KernelRegistryPlugin> i = factories.listIterator(); i.hasNext();)
{
KernelRegistryPlugin factory = i.next();
KernelRegistryEntry entry = factory.getEntry(name);
if (entry != null)
return entry;
}
throw new KernelRegistryEntryNotFoundException("Entry not found with name: " + name);
}
public boolean containsEntry(Object name)
{
Iterator<KernelRegistryPlugin> i = factories.iterator();
while (i.hasNext())
{
KernelRegistryPlugin factory = i.next();
KernelRegistryEntry entry = factory.getEntry(name);
if (entry != null)
return true;
}
return false;
}
}