org.jbr.taskmgr.config.WebInitializer.java Source code

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Here is the source code for org.jbr.taskmgr.config.WebInitializer.java

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/**
 * Copyright (C) - 2013 jbrule
 * 
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU 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 General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program. If not, see <http://www.gnu.org/licenses/>
 */
package org.jbr.taskmgr.config;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.servlet.DispatcherServlet;

/**
 * Initializes the Servlet 3 web application container for the Task Manager
 * application.
 * 
 * @author <a href="mailto:brulejr@gmail.com">Jon Brule</a>
 */
public class WebInitializer implements WebApplicationInitializer, ApplicationContextAware {

    private ApplicationContext containerContext;

    @Override
    public void onStartup(ServletContext servletContext) throws ServletException {

        // Create the dispatcher servlet's Spring application context
        AnnotationConfigWebApplicationContext dispatcherContext = new AnnotationConfigWebApplicationContext();
        dispatcherContext.setParent(containerContext);
        dispatcherContext.register(WebMvcConfig.class);
        dispatcherContext.registerShutdownHook();

        // Register and map the dispatcher servlet
        ServletRegistration.Dynamic dispatcher = servletContext.addServlet("dispatcher",
                new DispatcherServlet(dispatcherContext));
        dispatcher.setLoadOnStartup(1);
        dispatcher.addMapping("/");
    }

    @Override
    public void setApplicationContext(ApplicationContext containerContext) throws BeansException {
        this.containerContext = containerContext;
    }

}