/*
* [The "BSD licence"]
* Copyright (c) 2013-2014 Dandelion
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Dandelion nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.github.dandelion.datatables.integration;
import java.io.IOException;
import java.util.ArrayList;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.WebContext;
import org.thymeleaf.templateresolver.ServletContextTemplateResolver;
import com.github.dandelion.datatables.mock.Mock;
import com.github.dandelion.datatables.mock.Person;
import com.github.dandelion.datatables.thymeleaf.dialect.DataTablesDialect;
public class ThymeleafServlet extends HttpServlet {
private static final long serialVersionUID = 5556618877116829753L;
private static TemplateEngine templateEngine;
static {
initializeTemplateEngine();
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException,
IOException {
// Get the template's name to process
String templateName = request.getRequestURL().toString().split("/thymeleaf")[1];
// Adapt the response headers
response.setContentType("text/html");
response.setStatus(HttpServletResponse.SC_OK);
// Fill the request with some lists
request.setAttribute("persons", Mock.persons);
request.setAttribute("emptyList", new ArrayList<Person>());
request.setAttribute("nullList", null);
// Initialize the Thymeleaf template engine and process the template
WebContext ctx = new WebContext(request, response, getServletContext(), request.getLocale());
templateEngine.process(templateName, ctx, response.getWriter());
}
private static void initializeTemplateEngine() {
ServletContextTemplateResolver templateResolver = new ServletContextTemplateResolver();
templateResolver.setTemplateMode("HTML5");
templateResolver.setPrefix("/WEB-INF/templates/");
templateResolver.setSuffix(".html");
templateResolver.setCacheTTLMs(3600000L);
templateResolver.setCacheable(false);
templateEngine = new TemplateEngine();
templateEngine.setTemplateResolver(templateResolver);
templateEngine.addDialect(new DataTablesDialect());
}
}