/*
 * JBoss, Home of Professional Open Source
 * Copyright 2015, Red Hat, Inc. and/or its affiliates, and individual
 * contributors by the @authors tag. See the copyright.txt in the
 * distribution for a full listing of individual contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jboss.as.quickstarts.tasksrs.model;

import java.util.logging.Logger;

import javax.ejb.Stateful;
import javax.enterprise.context.RequestScoped;
import javax.enterprise.inject.Produces;
import javax.enterprise.inject.spi.InjectionPoint;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.PersistenceContextType;

/**
 * This class uses CDI to alias Java EE resources, such as the persistence context, to CDI beans. As it is a stateful bean, it
 * can produce extended persistence contexts.
 *
 * Example injection on a managed bean field:
 *
 * &#064;Inject private EntityManager em;
 *
 * @author Pete Muir
 * @author Lukas Fryc
 *
 */
@Stateful
@RequestScoped
public class Resources {

    @PersistenceContext(type = PersistenceContextType.EXTENDED)
    private EntityManager em;

    @Produces
    public EntityManager getEm() {
        return em;
    }

    @Produces
    public Logger getLogger(InjectionPoint ip) {
        String category = ip.getMember().getDeclaringClass().getName();
        return Logger.getLogger(category);
    }
}
