/**
 * MailArchiver is an application that provides services for storing and managing e-mail messages through a Web Services SOAP interface.
 * Copyright (C) 2012  Marcio Andre Scholl Levien and Fernando Alberto Reuter Wendt and Jose Ronaldo Nogueira Fonseca Junior
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

/******************************************************************************\
*
*  This product was developed by
*
*        SERVIÇO FEDERAL DE PROCESSAMENTO DE DADOS (SERPRO),
*
*  a government company established under Brazilian law (5.615/70),
*  at Department of Development of Porto Alegre.
*
\******************************************************************************/

package serpro.mailarchiver.view;

import javax.annotation.PostConstruct;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Configurable;

import com.eventrouter.DispatchContext;
import com.eventrouter.SubscriptionRegistry;
import com.eventrouter.annotation.AnnotationProcessor;

import com.vaadin.Application;
import com.vaadin.terminal.gwt.server.HttpServletRequestListener;

@Configurable
public abstract class BaseApplication extends Application implements HttpServletRequestListener {

    private static final InheritableThreadLocal<BaseApplication> threadApp = new InheritableThreadLocal<BaseApplication>();

    @Autowired
    private DispatchContext dispatchContext;

    public final DispatchContext getDispatchContext() {
        return dispatchContext;
    }

    public BaseApplication() {
        threadApp.set(this);
    }

    @PostConstruct
    private void postConstruct() {
        SubscriptionRegistry subscriptionRegistry = dispatchContext.getSubscriptionRegistry();
        AnnotationProcessor processor = new AnnotationProcessor(subscriptionRegistry);
        processor.process(this);
    }

    //--------------------------------------------------------------------------
    @Override
    public void onRequestStart(HttpServletRequest request, HttpServletResponse response) {
        threadApp.set(this);
    }

    @Override
    public void onRequestEnd(HttpServletRequest request, HttpServletResponse response) {
        threadApp.remove();
    }

    public static BaseApplication getInstance() {
        return threadApp.get();
    }

}