package com.epam.wilma.message.search.web;
/*==========================================================================
Copyright 2013-2017 EPAM Systems
This file is part of Wilma.
Wilma 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.
Wilma 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 Wilma. If not, see <http://www.gnu.org/licenses/>.
===========================================================================*/
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.epam.wilma.message.search.web.service.WebAppStopper;
/**
* Servlet for shutting down Wilma Message Search.
* @author Adam_Csaba_Kiraly
*/
public class ShutdownServlet extends HttpServlet {
private static final String SHUTDOWN_MESSAGE = "Shutting down Wilma Message Search.";
private final WebAppStopper webAppStopper;
private final Logger logger = LoggerFactory.getLogger(ShutdownServlet.class);
/**
* Constructs a new instance of {@link ShutdownServlet}.
* @param webAppStopper the webAppStopper service to use for shutting down
*/
public ShutdownServlet(final WebAppStopper webAppStopper) {
this.webAppStopper = webAppStopper;
}
@Override
protected void doGet(final HttpServletRequest req, final HttpServletResponse resp) throws ServletException, IOException {
logger.info(SHUTDOWN_MESSAGE);
writeResponse(resp);
webAppStopper.stopAsync();
}
@Override
protected void doPost(final HttpServletRequest req, final HttpServletResponse resp) throws ServletException, IOException {
doGet(req, resp);
}
private void writeResponse(final HttpServletResponse resp) throws IOException {
PrintWriter printWriter = resp.getWriter();
printWriter.write(SHUTDOWN_MESSAGE);
printWriter.flush();
printWriter.close();
}
}