/*
 * 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.ejb3.concurrency;

import org.jboss.as.ee.component.Component;
import org.jboss.as.ee.component.ComponentInstanceInterceptorFactory;
import org.jboss.invocation.Interceptor;
import org.jboss.invocation.InterceptorFactoryContext;

import java.lang.reflect.Method;
import java.util.Map;

/**
 * An {@link org.jboss.invocation.InterceptorFactory} which returns a new instance of {@link ContainerManagedConcurrencyInterceptor} on each
 * invocation to {@link #create(org.jboss.invocation.InterceptorFactoryContext)}. This {@link org.jboss.invocation.InterceptorFactory} can be used
 * for handling container managed concurrency invocations on a {@link LockableComponent}
 * <p/>
 * User: Jaikiran Pai
 */
public class ContainerManagedConcurrencyInterceptorFactory extends ComponentInstanceInterceptorFactory {

    private final Map<Method, Method> viewMethodToComponentMethodMap;

    public ContainerManagedConcurrencyInterceptorFactory(Map<Method, Method> viewMethodToComponentMethodMap) {

        this.viewMethodToComponentMethodMap = viewMethodToComponentMethodMap;
    }

    @Override
    protected Interceptor create(final Component component, final InterceptorFactoryContext context) {
        final LockableComponent lockableComponent = (LockableComponent) component;
        synchronized (lockableComponent) {
            Interceptor interceptor = lockableComponent.getConcurrencyManagementInterceptor();
            if(interceptor != null) {
                return interceptor;
            }
            interceptor = new ContainerManagedConcurrencyInterceptor((LockableComponent) component, viewMethodToComponentMethodMap);
            lockableComponent.setConcurrencyManagementInterceptor(interceptor);
            return interceptor;
        }
    }
}