/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2010, 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.ee.managedbean.processors;

import org.jboss.as.ee.structure.DeploymentType;
import org.jboss.as.ee.structure.DeploymentTypeMarker;
import org.jboss.as.server.deployment.Attachments;
import org.jboss.as.server.deployment.DeploymentPhaseContext;
import org.jboss.as.server.deployment.DeploymentUnit;
import org.jboss.as.server.deployment.DeploymentUnitProcessingException;
import org.jboss.as.server.deployment.DeploymentUnitProcessor;
import org.jboss.as.server.deployment.SubDeploymentMarker;
import org.jboss.as.server.deployment.module.ModuleRootMarker;
import org.jboss.as.server.deployment.module.ResourceRoot;
import org.jboss.jandex.DotName;
import org.jboss.jandex.Index;

import javax.annotation.ManagedBean;
import java.util.List;

/**
 * Processor that only runs for ear deployments where no application.xml is provided. It examines jars in the ear to determine
 * sub-deployments containing {@link ManagedBean managed beans}.
 *
 * @author Jaikiran Pai
 */
public class ManagedBeanSubDeploymentMarkingProcessor implements DeploymentUnitProcessor {


    private static final DotName MANAGED_BEAN = DotName.createSimple(ManagedBean.class.getName());

    @Override
    public void deploy(DeploymentPhaseContext phaseContext) throws DeploymentUnitProcessingException {
        final DeploymentUnit deploymentUnit = phaseContext.getDeploymentUnit();
        if (!DeploymentTypeMarker.isType(DeploymentType.EAR, deploymentUnit)) {
            return;
        }
        List<ResourceRoot> potentialSubDeployments = deploymentUnit.getAttachment(Attachments.RESOURCE_ROOTS);
        if(potentialSubDeployments == null) {
            return;
        }
        for (ResourceRoot resourceRoot : potentialSubDeployments) {
            if (ModuleRootMarker.isModuleRoot(resourceRoot)) {
                // module roots cannot be managed bean jars
                continue;
            }
            final Index index = resourceRoot.getAttachment(Attachments.ANNOTATION_INDEX);
            if (index != null) {
                if (!index.getAnnotations(MANAGED_BEAN).isEmpty()) {
                    //this is an managed bean deployment
                    SubDeploymentMarker.mark(resourceRoot);
                    ModuleRootMarker.mark(resourceRoot);
                }
            }
        }
    }

    @Override
    public void undeploy(DeploymentUnit context) {

    }
}
