Mercurial > dive4elements > river
annotate gwt-client/src/main/java/org/dive4elements/river/client/server/filter/NoCacheFilter.java @ 9709:b74f817435fe
comment removed
author | dnt_bjoernsen <d.tironi@bjoernsen.de> |
---|---|
date | Wed, 27 Jan 2021 11:47:38 +0100 |
parents | 5e38e2924c07 |
children | 0a5239a1e46e |
rev | line source |
---|---|
5861
172338b1407f
GWT client: Added copyright header.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
5838
diff
changeset
|
1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde |
172338b1407f
GWT client: Added copyright header.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
5838
diff
changeset
|
2 * Software engineering by Intevation GmbH |
172338b1407f
GWT client: Added copyright header.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
5838
diff
changeset
|
3 * |
5993
ea9eef426962
Removed trailing whitespace.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
5861
diff
changeset
|
4 * This file is Free Software under the GNU AGPL (>=v3) |
5861
172338b1407f
GWT client: Added copyright header.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
5838
diff
changeset
|
5 * and comes with ABSOLUTELY NO WARRANTY! Check out the |
5993
ea9eef426962
Removed trailing whitespace.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
5861
diff
changeset
|
6 * documentation coming with Dive4Elements River for details. |
5861
172338b1407f
GWT client: Added copyright header.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
5838
diff
changeset
|
7 */ |
172338b1407f
GWT client: Added copyright header.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
5838
diff
changeset
|
8 |
5835
821a02bbfb4e
Fixed internal java dependencies
Sascha L. Teichmann <teichmann@intevation.de>
parents:
5834
diff
changeset
|
9 package org.dive4elements.river.client.server.filter; |
4423
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
10 |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
11 import java.io.IOException; |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
12 import java.util.Date; |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
13 |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
14 import javax.servlet.Filter; |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
15 import javax.servlet.FilterChain; |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
16 import javax.servlet.FilterConfig; |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
17 import javax.servlet.ServletException; |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
18 import javax.servlet.ServletRequest; |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
19 import javax.servlet.ServletResponse; |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
20 import javax.servlet.http.HttpServletRequest; |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
21 import javax.servlet.http.HttpServletResponse; |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
22 |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
23 import org.apache.log4j.Logger; |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
24 |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
25 /** ServletFilter to avoid caching for GWTs *.nocache.* files. */ |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
26 public class NoCacheFilter implements Filter { |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
27 |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
28 private static final long DAY = 86400000L; |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
29 |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
30 private static final String NO_CACHE = ".nocache."; |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
31 |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
32 private static Logger log = Logger.getLogger(NoCacheFilter.class); |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
33 |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
34 /** |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
35 * Initialize. |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
36 */ |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
37 @Override |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
38 public void init(FilterConfig config) |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
39 throws ServletException |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
40 { |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
41 } |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
42 |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
43 |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
44 /** |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
45 * Called when filter in chain invoked. |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
46 * @param req request to servlet |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
47 * @param resp response of servlet |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
48 * @param chain the filter chain |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
49 */ |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
50 @Override |
8856 | 51 public void doFilter( |
52 ServletRequest req, | |
53 ServletResponse resp, | |
54 FilterChain chain | |
55 ) | |
4423
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
56 throws IOException, ServletException |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
57 { |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
58 HttpServletRequest httpreq = (HttpServletRequest)req; |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
59 String uri = httpreq.getRequestURI(); |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
60 |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
61 if (uri.contains(NO_CACHE)) { |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
62 log.debug("Set no-cache for " + uri); |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
63 |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
64 Date now = new Date(); |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
65 HttpServletResponse httpresp = (HttpServletResponse)resp; |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
66 httpresp.setDateHeader("Date", now.getTime()); |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
67 httpresp.setDateHeader("Expires", now.getTime() - DAY); |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
68 httpresp.setHeader("Pragma", "no-cache"); |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
69 httpresp.setHeader("Cache-control", |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
70 "no-cache, no-store, must-revalidate"); |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
71 } |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
72 |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
73 chain.doFilter(req, resp); |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
74 } |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
75 |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
76 |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
77 /** |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
78 * Do nothing at destruction. |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
79 */ |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
80 @Override |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
81 public void destroy() { |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
82 } |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
83 } |
687b7a6f09aa
Move GGInAFilter and NoCacheFilter to an own package
Björn Ricks <bjoern.ricks@intevation.de>
parents:
diff
changeset
|
84 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |