Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/exports/injector/KmFromRequestInjector.java @ 8367:16dc2da05aef

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Overwriting the current km in context gives unexpected results if artifacts from different km have been loaded.
author Tom Gottfried <tom@intevation.de>
date Thu, 02 Oct 2014 11:46:44 +0200
parents 7341bebc79d0
children 5e38e2924c07
rev   line source
8251
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
1 package org.dive4elements.river.exports.injector;
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
2
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
3 import org.apache.log4j.Logger;
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
4 import org.dive4elements.artifacts.Artifact;
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
5 import org.dive4elements.artifacts.ArtifactNamespaceContext;
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
6 import org.dive4elements.artifacts.CallContext;
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
7 import org.dive4elements.artifacts.ContextInjector;
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
8 import org.dive4elements.artifacts.common.utils.XMLUtils;
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
9 import org.dive4elements.river.artifacts.D4EArtifact;
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
10 import org.dive4elements.river.artifacts.access.RangeAccess;
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
11 import org.w3c.dom.Document;
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
12 import org.w3c.dom.Element;
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
13
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
14 import static org.dive4elements.river.exports.injector.InjectorConstants.CURRENT_KM;
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
15
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
16
8349
7341bebc79d0 Let injectors be strictly distinct from each other and give more meaningful names (they know what they do, not where they will be used. The latter is configuration).
Tom Gottfried <tom@intevation.de>
parents: 8326
diff changeset
17 public class KmFromRequestInjector
8251
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
18 implements ContextInjector
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
19 {
8349
7341bebc79d0 Let injectors be strictly distinct from each other and give more meaningful names (they know what they do, not where they will be used. The latter is configuration).
Tom Gottfried <tom@intevation.de>
parents: 8326
diff changeset
20 private static final Logger log = Logger.getLogger(KmFromRequestInjector.class);
8251
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
21
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
22 public static final String XPATH_CHART_CURRENTKM =
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
23 "/art:action/art:attributes/art:currentKm/@art:km";
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
24 @Override
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
25 public void setup(Element cfg) {
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
26
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
27 }
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
28
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
29 @Override
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
30 public void injectContext(
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
31 CallContext ctx,
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
32 Artifact artifact,
8367
16dc2da05aef Overwriting the current km in context gives unexpected results if artifacts from different km have been loaded.
Tom Gottfried <tom@intevation.de>
parents: 8349
diff changeset
33 Document request
16dc2da05aef Overwriting the current km in context gives unexpected results if artifacts from different km have been loaded.
Tom Gottfried <tom@intevation.de>
parents: 8349
diff changeset
34 ) {
16dc2da05aef Overwriting the current km in context gives unexpected results if artifacts from different km have been loaded.
Tom Gottfried <tom@intevation.de>
parents: 8349
diff changeset
35 if (ctx.getContextValue(CURRENT_KM) instanceof Number) {
16dc2da05aef Overwriting the current km in context gives unexpected results if artifacts from different km have been loaded.
Tom Gottfried <tom@intevation.de>
parents: 8349
diff changeset
36 return;
16dc2da05aef Overwriting the current km in context gives unexpected results if artifacts from different km have been loaded.
Tom Gottfried <tom@intevation.de>
parents: 8349
diff changeset
37 }
16dc2da05aef Overwriting the current km in context gives unexpected results if artifacts from different km have been loaded.
Tom Gottfried <tom@intevation.de>
parents: 8349
diff changeset
38
8251
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
39 Double km = getCurrentKmFromRequest(request);
8326
10917ec29625 Inject current km and pnp into the context used to calculate W in cm at gauge.
Raimund Renkert <rrenkert@intevation.de>
parents: 8251
diff changeset
40 if (Double.isNaN(km)) {
8251
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
41 RangeAccess access = new RangeAccess((D4EArtifact)artifact);
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
42 km = access.getFrom();
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
43 }
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
44 ctx.putContextValue(CURRENT_KM, km);
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
45 }
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
46
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
47 private Double getCurrentKmFromRequest(Document request) {
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
48
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
49 String km = XMLUtils.xpathString(
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
50 request,
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
51 XPATH_CHART_CURRENTKM,
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
52 ArtifactNamespaceContext.INSTANCE);
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
53
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
54 if (km == null) {
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
55 return Double.NaN;
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
56 }
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
57
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
58 try {
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
59 return Double.valueOf(km);
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
60 }
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
61 catch (NumberFormatException nfe) {
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
62 return Double.NaN;
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
63 }
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
64 }
c7ca9c228314 Added context injectors for discharge curves.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
65 }
http://dive4elements.wald.intevation.org