Mercurial > dive4elements > river

comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/ManualPointsArtifact.java @ 3786:4adc35aa655c

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merged flys-artifacts/2.9.1
author Thomas Arendsen Hein <thomas@intevation.de>
date Fri, 28 Sep 2012 12:14:47 +0200
parents 066e2b4d69ca
children 6153c50f78cf
comparison
equal deleted inserted replaced
3719:e82acd5c86f7 3786:4adc35aa655c
1 package de.intevation.flys.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 de.intevation.artifactdatabase.state.Facet;
13 import de.intevation.artifacts.Artifact;
14 import de.intevation.artifacts.ArtifactFactory;
15 import de.intevation.artifacts.CallMeta;
16 import de.intevation.flys.artifacts.geom.Lines;
17 import de.intevation.flys.artifacts.model.FacetTypes;
18 import de.intevation.flys.artifacts.states.DefaultState;
19 import de.intevation.flys.model.FastCrossSectionLine;
20
21
22 /**
23 * Artifact to store user-added points and water lines.
24 */
25 public class ManualPointsArtifact
26 extends StaticFLYSArtifact
27 implements FacetTypes, WaterLineArtifact
28 {
29 private static final long serialVersionUID = 7096025125474986011L;
30
31 /** The logger for this class. */
32 private static Logger logger = Logger.getLogger(ManualPointsArtifact.class);
33
34 /** The name of the artifact. */
35 public static final String ARTIFACT_NAME = "manualpoints";
36
37
38 public ManualPointsArtifact() {
39 logger.debug("ManualPointsArtifact.ManualPointsArtifact()");
40 }
41
42
43 /**
44 * Gets called from factory to set things up.
45 */
46 @Override
47 public void setup(
48 String identifier,
49 ArtifactFactory factory,
50 Object context,
51 CallMeta callMeta,
52 Document data)
53 {
54 logger.debug("ManualPointsArtifact.setup");
55 super.setup(identifier, factory, context, callMeta, data);
56 initialize(null, context, callMeta);
57 }
58
59
60 /** Return the name of this artifact. */
61 @Override
62 public String getName() {
63 return ARTIFACT_NAME;
64 }
65
66
67 /** Access state data storing the jsonstring with points. */
68 public String getPointsData(String facetName) {
69 return getDataAsString(facetName + ".data");
70 }
71
72
73 /**
74 * Access state data storing the jsonstring with lines.
75 * @param facetName Name of facet or null if the so far
76 * only known case should be picked.
77 * @return (String) value of data element (expect json).
78 */
79 public String getLinesData(String facetName) {
80 if (facetName == null)
81 return getDataAsString("cross_section.manualpoints.lines");
82 // TODO .lineS?
83 return getDataAsString(facetName + ".line");
84 }
85
86
87 /** Setup state and facet. */
88 @Override
89 protected void initialize(Artifact artifact, Object context, CallMeta meta) {
90 logger.debug("ManualPointsArtifact.initialize");
91 List<Facet> fs = new ArrayList<Facet>();
92
93 DefaultState state = (DefaultState) getCurrentState(context);
94 state.computeInit(this, hash(), context, meta, fs);
95 if (!fs.isEmpty()) {
96 logger.debug("Facets to add in ManualPointsArtifact.initialize .");
97 facets.put(getCurrentStateId(), fs);
98 }
99 else {
100 logger.debug("No facets to add in ManualPointsArtifact.initialize ("
101 + state.getID() + ").");
102 }
103 }
104
105
106 /**
107 * Get value of line at index.
108 * @param index index in json array defining lines.
109 * @return water height of line at given index.
110 */
111 protected double getLine(int index) {
112 try {
113 JSONArray lines = new JSONArray(getLinesData(null));
114 JSONArray array = lines.getJSONArray(index);
115
116 return array.getDouble(0);
117 }
118 catch(JSONException e){
119 logger.error("Could not decode json for line.");
120 return 0d;
121 }
122 }
123
124
125 /**
126 * Get the water line "surface".
127 * @param index index of facets data.
128 * @param csl 'ground' against which to determine water surface.
129 * @param a (ignored in this implementation).
130 * @param b (ignored in this implementation).
131 */
132 @Override
133 public Lines.LineData getWaterLines(
134 int index,
135 FastCrossSectionLine csl,
136 double a, double b
137 ) {
138 List<Point2D> points = csl.getPoints();
139 return Lines.createWaterLines(points, getLine(index));
140 }
141 }
142 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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