/** * Copyright (C) 2009 eXo Platform SAS. * * 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.gatein.mop.core.api; import org.gatein.mop.core.util.Tools; import org.gatein.mop.spi.AdapterLifeCycle; import java.util.HashMap; import java.util.Map; import java.util.ServiceLoader; /** * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> * @version $Revision$ */ class AdapterRegistration<T, A> { /** . */ private static final Map<Class<?>, AdapterRegistration<?, ?>> instances; static { ServiceLoader<AdapterLifeCycle> loader = ServiceLoader.load(AdapterLifeCycle.class); Map<Class<?>, AdapterRegistration<?, ?>> map = new HashMap<Class<?>, AdapterRegistration<?, ?>>(); for (AdapterLifeCycle factory : loader) { AdapterRegistration registration = new AdapterRegistration(factory); map.put(registration.adapterType, registration); } // instances = map; } static <A> AdapterRegistration<Object, A> getInstance(Class<A> type) { return (AdapterRegistration<Object, A>)instances.get(type); } /** . */ final AdapterLifeCycle<T, A> factory; /** . */ final Class<T> adapteeType; /** . */ final Class<A> adapterType; AdapterRegistration(AdapterLifeCycle<T, A> factory) { this.factory = factory; this.adapteeType = (Class<T>)Tools.resolve(factory.getClass(), AdapterLifeCycle.class, 0); this.adapterType = (Class<A>)Tools.resolve(factory.getClass(), AdapterLifeCycle.class, 1); } }