/*
* 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.basic;
import java.util.Map;
import org.jboss.kernel.spi.registry.KernelRegistryEntry;
import org.jboss.kernel.spi.registry.KernelRegistryEntryAlreadyRegisteredException;
import org.jboss.kernel.spi.registry.KernelRegistryEntryNotFoundException;
import org.jboss.kernel.spi.registry.KernelRegistryPlugin;
import org.jboss.logging.Logger;
import org.jboss.util.collection.CollectionsFactory;
/**
* Basic Kernel registry factory.
*
* @author <a href="adrian@jboss.com">Adrian Brock</a>
* @version $Revision: 57307 $
*/
public class BasicKernelRegistryFactory implements KernelRegistryPlugin
{
/** The log */
private static final Logger log = Logger.getLogger(BasicKernelRegistryFactory.class);
/** The registred entries */
protected Map<Object, KernelRegistryEntry> entries = CollectionsFactory.createConcurrentReaderMap();
/**
* Create a new basic registry factory
*
* @throws Exception for any error
*/
public BasicKernelRegistryFactory() throws Exception
{
}
public void registerEntry(Object name, KernelRegistryEntry entry)
{
if (name == null)
throw new IllegalArgumentException("Null name");
if (entry == null)
throw new IllegalArgumentException("Null entry");
boolean trace = log.isTraceEnabled();
synchronized (entries)
{
if (entries.containsKey(name))
throw new KernelRegistryEntryAlreadyRegisteredException("Already registered: " + name);
entries.put(name, entry);
entry.setName(name);
}
if (trace)
log.trace("Registered object: '" + entry + "' with name '" + name + "'");
}
public KernelRegistryEntry unregisterEntry(Object name)
{
if (name == null)
throw new IllegalArgumentException("Null name");
boolean trace = log.isTraceEnabled();
KernelRegistryEntry entry;
synchronized (entries)
{
entry = entries.remove(name);
if (entry == null)
throw new KernelRegistryEntryNotFoundException("Not found: " + name);
}
if (trace)
log.trace("Unregistered name: '" + name + "'");
return entry;
}
public KernelRegistryEntry getEntry(Object name)
{
if (name == null)
throw new IllegalArgumentException("Null name");
return entries.get(name);
}
}