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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2008, Red Hat, Inc., 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.weld.bean;

import org.jboss.weld.bootstrap.BeanDeployerEnvironment;
import org.jboss.weld.bootstrap.api.ServiceRegistry;
import org.jboss.weld.context.WeldCreationalContext;
import org.jboss.weld.introspector.WeldMember;
import org.jboss.weld.manager.BeanManagerImpl;
import org.slf4j.cal10n.LocLogger;

import javax.enterprise.context.spi.CreationalContext;
import java.lang.reflect.Member;

import static org.jboss.weld.logging.Category.BEAN;
import static org.jboss.weld.logging.LoggerFactory.loggerFactory;
import static org.jboss.weld.logging.messages.BeanMessage.CIRCULAR_CALL;

/**
 * @author pmuir
 * @author alesj
 */
public abstract class AbstractReceiverBean extends AbstractBean {

    private static final LocLogger log = loggerFactory().getLogger(BEAN);

    private AbstractClassBean declaringBean;

    public AbstractReceiverBean(String idSuffix, AbstractClassBean declaringBean, BeanManagerImpl beanManager, ServiceRegistry services) {
        super(idSuffix, beanManager, services);
        this.declaringBean = declaringBean;
    }

    @Override
    public void initialize(BeanDeployerEnvironment environment) {
        super.initialize(environment);
        initAlternative();
    }

    /**
     * Gets the receiver of the product. The two creational contexts need to be separated because the receiver only serves the product
     * creation (it is not a dependent instance of the created instance).
     *
     * @param productCreationalContext the creational context of the produced instance
     * @param receiverCreationalCOntext the creational context of the receiver
     * @return The receiver
     */
    protected Object getReceiver(CreationalContext productCreationalContext, CreationalContext receiverCreationalContext) {
        // This is a bit dangerous, as it means that producer methods can end up
        // executing on partially constructed instances. Also, it's not required
        // by the spec...
        if (getWeldAnnotated().isStatic()) {
            return null;
        } else {
            if (productCreationalContext instanceof WeldCreationalContext) {
                WeldCreationalContext creationalContextImpl = (WeldCreationalContext) productCreationalContext;
                final X incompleteInstance = creationalContextImpl.getIncompleteInstance(getDeclaringBean());
                if (incompleteInstance != null) {
                    log.warn(CIRCULAR_CALL, getWeldAnnotated(), getDeclaringBean());
                    return incompleteInstance;
                }
            }
            return beanManager.getReference(getDeclaringBean(), receiverCreationalContext, true);
        }
    }


    /**
     * Returns the declaring bean
     *
     * @return The bean representation
     */
    public AbstractClassBean getDeclaringBean() {
        return declaringBean;
    }

    @Override
    public abstract WeldMember getWeldAnnotated();

}