Mercurial > dive4elements > river

comparison flys-artifacts/src/main/java/org/dive4elements/river/artifacts/ManualPointsArtifact.java @ 5831:bd047b71ab37

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Repaired internal references
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 25 Apr 2013 12:06:39 +0200
parents flys-artifacts/src/main/java/de/intevation/flys/artifacts/ManualPointsArtifact.java@a2735a4bf75e
children
comparison
equal deleted inserted replaced
5830:160f53ee0870 5831:bd047b71ab37
1 package org.dive4elements.river.artifacts;
2
3 import java.awt.geom.Point2D;
4 import java.util.ArrayList;
5 import java.util.List;
6
7 import org.apache.log4j.Logger;
8 import org.json.JSONArray;
9 import org.json.JSONException;
10 import org.w3c.dom.Document;
11
12 import org.dive4elements.artifactdatabase.state.Facet;
13 import org.dive4elements.artifacts.Artifact;
14 import org.dive4elements.artifacts.ArtifactFactory;
15 import org.dive4elements.artifacts.CallContext;
16 import org.dive4elements.artifacts.CallMeta;
17 import org.dive4elements.river.artifacts.geom.Lines;
18 import org.dive4elements.river.artifacts.model.FacetTypes;
19 import org.dive4elements.river.artifacts.states.DefaultState;
20 import org.dive4elements.river.model.FastCrossSectionLine;
21
22
23 /**
24 * Artifact to store user-added points and water lines.
25 */
26 public class ManualPointsArtifact
27 extends StaticFLYSArtifact
28 implements FacetTypes, WaterLineArtifact
29 {
30 private static final long serialVersionUID = 7096025125474986011L;
31
32 /** The logger for this class. */
33 private static Logger logger = Logger.getLogger(ManualPointsArtifact.class);
34
35 /** The name of the artifact. */
36 public static final String ARTIFACT_NAME = "manualpoints";
37
38
39 public ManualPointsArtifact() {
40 logger.debug("ManualPointsArtifact.ManualPointsArtifact()");
41 }
42
43
44 /**
45 * Gets called from factory to set things up.
46 */
47 @Override
48 public void setup(
49 String identifier,
50 ArtifactFactory factory,
51 Object context,
52 CallMeta callMeta,
53 Document data)
54 {
55 logger.debug("ManualPointsArtifact.setup");
56 super.setup(identifier, factory, context, callMeta, data);
57 initialize(null, context, callMeta);
58 }
59
60
61 /** Return the name of this artifact. */
62 @Override
63 public String getName() {
64 return ARTIFACT_NAME;
65 }
66
67
68 /** Access state data storing the jsonstring with points. */
69 public String getPointsData(String facetName) {
70 return getDataAsString(facetName + ".data");
71 }
72
73
74 /**
75 * Access state data storing the jsonstring with lines.
76 * @param facetName Name of facet or null if the so far
77 * only known case should be picked.
78 * @return (String) value of data element (expect json).
79 */
80 public String getLinesData(String facetName) {
81 if (facetName == null)
82 return getDataAsString("cross_section.manualpoints.lines");
83 // TODO .lineS?
84 return getDataAsString(facetName + ".line");
85 }
86
87
88 /** Setup state and facet. */
89 @Override
90 protected void initialize(Artifact artifact, Object context, CallMeta meta) {
91 logger.debug("ManualPointsArtifact.initialize");
92 List<Facet> fs = new ArrayList<Facet>();
93
94 DefaultState state = (DefaultState) getCurrentState(context);
95 state.computeInit(this, hash(), context, meta, fs);
96 if (!fs.isEmpty()) {
97 logger.debug("Facets to add in ManualPointsArtifact.initialize .");
98 addFacets(getCurrentStateId(), fs);
99 }
100 else {
101 logger.debug("No facets to add in ManualPointsArtifact.initialize ("
102 + state.getID() + ").");
103 }
104 }
105
106
107 /**
108 * Get value of line at index.
109 * @param index index in json array defining lines.
110 * @return water height of line at given index.
111 */
112 protected double getLine(int index) {
113 try {
114 JSONArray lines = new JSONArray(getLinesData(null));
115 JSONArray array = lines.getJSONArray(index);
116
117 return array.getDouble(0);
118 }
119 catch(JSONException e){
120 logger.error("Could not decode json for line.");
121 return 0d;
122 }
123 }
124
125
126 /**
127 * Get the water line "surface".
128 * @param index index of facets data.
129 * @param csl 'ground' against which to determine water surface.
130 * @param a (ignored in this implementation).
131 * @param b (ignored in this implementation).
132 * @param context (ignored in this implementation).
133 */
134 @Override
135 public Lines.LineData getWaterLines(
136 int index,
137 FastCrossSectionLine csl,
138 double a, double b,
139 CallContext context
140 ) {
141 List<Point2D> points = csl.getPoints();
142 return Lines.createWaterLines(points, getLine(index));
143 }
144 }
145 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org