Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/LocationProvider.java @ 2089:0da8874bd378

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added initial state to map artifact to be able to advance and step back. The map artifact overrides describe() to have the complete UI information in the describe response document. flys-artifacts/trunk@3613 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Raimund Renkert <raimund.renkert@intevation.de>
date Fri, 06 Jan 2012 12:02:10 +0000
parents 97a25b54eea3
children 0c7847b8e85e
rev   line source
2063
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
1 package de.intevation.flys.artifacts.model;
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
2
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
3 import net.sf.ehcache.Cache;
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
4 import net.sf.ehcache.Element;
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
5
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
6 import org.apache.log4j.Logger;
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
7
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
8 import de.intevation.flys.model.Annotation;
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
9 import de.intevation.flys.model.Position;
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
10
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
11 import de.intevation.flys.artifacts.cache.CacheFactory;
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
12 import de.intevation.flys.artifacts.model.AnnotationsFactory;
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
13
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
14
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
15 public class LocationProvider {
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
16
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
17 public static final String CACHE_KEY = "location-provider";
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
18
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
19
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
20 private static final Logger logger =
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
21 Logger.getLogger(LocationProvider.class);
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
22
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
23
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
24 private LocationProvider() {
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
25 }
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
26
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
27
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
28 public static String getLocation(String river, double km) {
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
29 return getLocation(getLocationHash(river, km), river, km);
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
30 }
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
31
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
32
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
33 public static String getLocation(String hash, String river, double km) {
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
34 logger.debug("Fetch location for '" + river + "' at '" + km + "'");
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
35
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
36 Cache cache = CacheFactory.getCache(CACHE_KEY);
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
37
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
38 if (cache != null) {
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
39 return getCachedLocation(cache, hash, river, km);
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
40 }
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
41 else {
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
42 logger.info("No Cache for Locations configured.");
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
43 return getUncachedLocation(river, km);
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
44 }
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
45 }
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
46
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
47
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
48 protected static String getCachedLocation(
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
49 Cache cache,
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
50 String hash,
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
51 String river,
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
52 double km
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
53 ) {
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
54 logger.debug("Fetch location from cache.");
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
55
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
56 Element element = cache.get(hash);
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
57
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
58 if (element == null) {
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
59 logger.debug("Element is not in cache yet.");
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
60
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
61 String location = getUncachedLocation(river, km);
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
62 element = new Element(hash, location);
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
63 cache.put(element);
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
64 }
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
65
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
66 return (String) element.getValue();
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
67 }
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
68
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
69
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
70 protected static String getUncachedLocation(String river, double km) {
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
71 logger.debug("Fetch location from backend.");
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
72
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
73 Annotation annotation = AnnotationsFactory.getAnnotation(river, km);
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
74
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
75 if (annotation != null) {
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
76 logger.debug("Found an annotation.");
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
77 Position pos = annotation.getPosition();
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
78 return pos.getValue();
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
79 }
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
80
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
81 return "";
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
82 }
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
83
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
84
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
85 protected static String getLocationHash(String river, double km) {
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
86 return river + "#" + km;
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
87 }
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
88 }
97a25b54eea3 Part 1 of #125: added a description for a location to the WaterlevelExport.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
89 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org