/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2014 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package io.undertow.servlet.test.dispatcher;

import jakarta.servlet.RequestDispatcher;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * @author Stuart Douglas
 */
public class ForwardServlet extends HttpServlet {

    public static final String MESSAGE = "Hello ";

    @Override
    protected void doGet(final HttpServletRequest req, final HttpServletResponse resp) throws ServletException, IOException {
        resp.getWriter().write(MESSAGE); //this should be ignored
        RequestDispatcher dispatcher;
        if (req.getHeader("name") != null) {
            dispatcher = req.getServletContext().getNamedDispatcher(req.getHeader("forward"));
        } else {
            dispatcher = req.getRequestDispatcher(req.getHeader("forward"));
        }
        if (dispatcher != null) {
            dispatcher.forward(req, resp);
        } else {
            resp.sendError(500, "dispatcher was null!");
        }
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doGet(req, resp);
    }

}
