/*
 * JBoss, Home of Professional Open Source
 * Copyright 2010, Red Hat Inc., and individual contributors as indicated
 * by the @authors tag. See the copyright.txt 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;

import java.util.List;

import org.jboss.as.server.deployment.SetupAction;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.ServiceName;
import org.jboss.msc.service.StartContext;
import org.jboss.msc.service.StartException;
import org.jboss.msc.service.StopContext;
import org.jboss.msc.value.InjectedValue;
import org.wildfly.security.manager.WildFlySecurityManager;

/**
 * Service that actually finishes starting the weld container, after it has been bootstrapped by
 * {@link WeldBootstrapService}
 *
 * @author Stuart Douglas
 */
public class WeldStartService implements Service<WeldStartService> {

    public static final ServiceName SERVICE_NAME = ServiceName.of("WeldStartService");

    private final InjectedValue<WeldBootstrapService> bootstrap = new InjectedValue<WeldBootstrapService>();

    private final List<SetupAction> setupActions;
    private final ClassLoader classLoader;

    public WeldStartService(final List<SetupAction> setupActions, final ClassLoader classLoader) {
        this.setupActions = setupActions;
        this.classLoader = classLoader;
    }

    @Override
    public void start(final StartContext context) throws StartException {
        ClassLoader oldTccl = WildFlySecurityManager.getCurrentContextClassLoaderPrivileged();
        try {
            for (SetupAction action : setupActions) {
                action.setup(null);
            }
            WildFlySecurityManager.setCurrentContextClassLoaderPrivileged(classLoader);
            bootstrap.getValue().getBootstrap().startInitialization();
            bootstrap.getValue().getBootstrap().deployBeans();
            bootstrap.getValue().getBootstrap().validateBeans();
            bootstrap.getValue().getBootstrap().endInitialization();
        } finally {

            for (SetupAction action : setupActions) {
                try {
                    action.teardown(null);
                } catch (Exception e) {
                    WeldLogger.DEPLOYMENT_LOGGER.exceptionClearingThreadState(e);
                }
            }
            WildFlySecurityManager.setCurrentContextClassLoaderPrivileged(oldTccl);
        }
    }

    /**
     * This is a no-op, the actual shutdown is performed in {@link WeldBootstrapService#stop(org.jboss.msc.service.StopContext)}
     */
    @Override
    public void stop(final StopContext context) {

    }

    @Override
    public WeldStartService getValue() throws IllegalStateException, IllegalArgumentException {
        return this;
    }

    public InjectedValue<WeldBootstrapService> getBootstrap() {
        return bootstrap;
    }
}
