/hudson-core/src/main/java/hudson/util/HudsonIsLoading.java

 1/*
 2 * The MIT License
 3 * 
 4 * Copyright (c) 2004-2009, Sun Microsystems, Inc., Kohsuke Kawaguchi
 5 * 
 6 * Permission is hereby granted, free of charge, to any person obtaining a copy
 7 * of this software and associated documentation files (the "Software"), to deal
 8 * in the Software without restriction, including without limitation the rights
 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 * 
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 * 
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24package hudson.util;
25
26import org.kohsuke.stapler.StaplerRequest;
27import org.kohsuke.stapler.StaplerResponse;
28
29import javax.servlet.ServletContext;
30import javax.servlet.ServletException;
31import static javax.servlet.http.HttpServletResponse.SC_SERVICE_UNAVAILABLE;
32import java.io.IOException;
33
34/**
35 * Model object used to display "Hudson is loading data".
36 *
37 * Set this object to {@link ServletContext#setAttribute(String, Object)} "app" while
38 * the loading activity is taking place.
39 * 
40 * @author Kohsuke Kawaguchi
41 */
42public class HudsonIsLoading {
43    public void doDynamic(StaplerRequest req, StaplerResponse rsp) throws IOException, ServletException, InterruptedException {
44        rsp.setStatus(SC_SERVICE_UNAVAILABLE);
45        req.getView(this,"index.jelly").forward(req,rsp);
46    }
47}