/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2016, 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.weld.deployment.processor;

import static org.jboss.as.weld.Capabilities.WELD_CAPABILITY_NAME;

import org.jboss.as.controller.capability.CapabilityServiceSupport;
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.module.ModuleDependency;
import org.jboss.as.server.deployment.module.ModuleSpecification;
import org.jboss.as.weld.WeldCapability;
import org.jboss.modules.Module;
import org.jboss.modules.ModuleIdentifier;
import org.jboss.modules.ModuleLoader;

/**
 *
 * @author Martin Kouba
 */
public class WeldBeanValidationDependencyProcessor implements DeploymentUnitProcessor {

    private static final ModuleIdentifier CDI_BEAN_VALIDATION_ID = ModuleIdentifier.create("org.hibernate.validator.cdi");

    @Override
    public void deploy(DeploymentPhaseContext phaseContext) throws DeploymentUnitProcessingException {

        final DeploymentUnit deploymentUnit = phaseContext.getDeploymentUnit();
        final ModuleSpecification moduleSpecification = deploymentUnit.getAttachment(Attachments.MODULE_SPECIFICATION);
        final ModuleLoader moduleLoader = Module.getBootModuleLoader();
        final CapabilityServiceSupport support = deploymentUnit.getAttachment(Attachments.CAPABILITY_SERVICE_SUPPORT);

        final WeldCapability weldCapability;
        try {
            weldCapability = support.getCapabilityRuntimeAPI(WELD_CAPABILITY_NAME, WeldCapability.class);
        } catch (CapabilityServiceSupport.NoSuchCapabilityException ignored) {
            return;
        }

        if (!weldCapability.isPartOfWeldDeployment(deploymentUnit)) {
            return; // Skip if there are no beans.xml files in the deployment
        }

        ModuleDependency cdiBeanValidationDep = new ModuleDependency(moduleLoader, CDI_BEAN_VALIDATION_ID, false, false, true, false);
        moduleSpecification.addSystemDependency(cdiBeanValidationDep);
    }
}
