org.blanco.gae.blog.BlogServlet.java Source code

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Here is the source code for org.blanco.gae.blog.BlogServlet.java

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/*
 * The MIT License (MIT)
 * 
 * Copyright (c) 2012 Alexandro Blanco Santana
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy of 
 * this software and associated documentation files (the "Software"), to deal in 
 * the Software without restriction, including without limitation the rights to 
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 
 * of the Software, and to permit persons to whom the Software is furnished to do 
 * so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all 
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
 * SOFTWARE.
 */
package org.blanco.gae.blog;

import java.io.IOException;
import java.util.Date;

import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.blanco.gae.blog.entities.Entry;
import org.hibernate.Session;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

@SuppressWarnings("serial")
public class BlogServlet extends HttpServlet {

    private WebApplicationContext ctx = null;
    //Initialize the web application context from the servlet context.

    @Override
    public void init(ServletConfig config) throws ServletException {
        super.init(config);
        ctx = WebApplicationContextUtils.getWebApplicationContext(config.getServletContext());
    }

    public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
        try {
            req.getRequestDispatcher("blog_form.jsp").forward(req, resp);
        } catch (ServletException e) {
            e.printStackTrace(resp.getWriter());
        }
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //Parse the input form
        Entry entry = new Entry();
        entry.setAuthor(req.getParameter("author"));
        entry.setEntry(req.getParameter("entry"));
        entry.setDate(new Date(System.currentTimeMillis()));
        //store the entry
        Session session = (Session) ctx.getBean("session");
        session.persist(entry);
        session.flush();
        session.close();
        req.setAttribute("entry", entry);
        //forward to presentation
        req.getRequestDispatcher("entry_created.jsp").forward(req, resp);
    }

}