/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2011, Red Hat, Inc., 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.as.jpa.subsystem;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;


import org.jboss.as.jpa.spi.PersistenceUnitService;
import org.jipijapa.plugin.spi.PersistenceUnitServiceRegistry;


/**
 * Standard {@link PersistenceUnitServiceRegistry} implementation.
 *
 * @author Brian Stansberry (c) 2011 Red Hat Inc.
 */
public class PersistenceUnitRegistryImpl implements PersistenceUnitServiceRegistry {

    public static final PersistenceUnitRegistryImpl INSTANCE = new PersistenceUnitRegistryImpl();

    private final Map<String, PersistenceUnitService> registry = Collections.synchronizedMap(new HashMap<String, PersistenceUnitService>());


    @Override
    public PersistenceUnitService getPersistenceUnitService(String persistenceUnitResourceName) {
        return registry.get(persistenceUnitResourceName);
    }

    public void add(String scopedPersistenceUnitName, PersistenceUnitService service) {
        registry.put(scopedPersistenceUnitName, service);
    }

    public void remove(String scopedPersistenceUnitName) {
        registry.remove(scopedPersistenceUnitName);
    }
}