org.jboss.virtual.spi.FileHandlerPluginRegistry Maven / Gradle / Ivy
/*
* 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.virtual.spi;
import java.util.Collections;
import java.util.Set;
import java.util.TreeSet;
import java.util.concurrent.CopyOnWriteArraySet;
/**
* Singleton file handler plugin registry
*
* @author Ales Justin
*/
public class FileHandlerPluginRegistry
{
/** The singleton instance */
private static FileHandlerPluginRegistry instance = new FileHandlerPluginRegistry();
/** The file handler plugins */
private Set plugins = new CopyOnWriteArraySet(new TreeSet(FileHandlerPlugin.COMPARATOR));
private FileHandlerPluginRegistry()
{
}
/**
* Get instance.
*
* @return get instance
*/
public static FileHandlerPluginRegistry getInstance()
{
return instance;
}
/**
* Add file handler plugin.
*
* @param plugin the plugin
* @return see Set#add
*/
public boolean addFileHandlerPlugin(FileHandlerPlugin plugin)
{
return plugins.add(plugin);
}
/**
* Remove file handler plugin.
*
* @param plugin the plugin
* @return see Set#remove
*/
public boolean removeFileHandlerPlugin(FileHandlerPlugin plugin)
{
return plugins.remove(plugin);
}
/**
* Return unmodifiable plugins.
*
* @return the plugins copy
*/
public Set getFileHandlerPlugins()
{
return Collections.unmodifiableSet(plugins);
}
}