Mercurial > dive4elements > river

comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/ManualPointsArtifact.java @ 3318:dbe2f85bf160

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merged flys-artifacts/2.8
author Thomas Arendsen Hein <thomas@intevation.de>
date Fri, 28 Sep 2012 12:14:35 +0200
parents d9af29a4bb85
children afc7bfb4800b
comparison
equal deleted inserted replaced
2987:98c7a46ec5ae 3318:dbe2f85bf160
1 package de.intevation.flys.artifacts;
2
3 import java.util.ArrayList;
4 import java.util.List;
5
6 import java.awt.geom.Point2D;
7
8 import org.apache.log4j.Logger;
9
10 import org.w3c.dom.Document;
11
12 import org.json.JSONArray;
13 import org.json.JSONException;
14
15 import de.intevation.artifactdatabase.state.Facet;
16
17 import de.intevation.artifacts.Artifact;
18 import de.intevation.artifacts.ArtifactFactory;
19 import de.intevation.artifacts.CallMeta;
20
21 import de.intevation.flys.artifacts.model.FacetTypes;
22
23 import de.intevation.flys.artifacts.states.DefaultState;
24
25 import de.intevation.flys.model.FastCrossSectionLine;
26
27 import de.intevation.flys.artifacts.geom.Lines;
28
29
30 /**
31 * Artifact to store user-added points and water lines.
32 */
33 public class ManualPointsArtifact
34 extends StaticFLYSArtifact
35 implements FacetTypes, WaterLineArtifact
36 {
37 /** The logger for this class. */
38 private static Logger logger = Logger.getLogger(ManualPointsArtifact.class);
39
40 /** The name of the artifact. */
41 public static final String ARTIFACT_NAME = "manualpoints";
42
43
44 /**
45 * Trivial Constructor.
46 */
47 public ManualPointsArtifact() {
48 logger.debug("ManualPointsArtifact.ManualPointsArtifact()");
49 }
50
51
52 /**
53 * Gets called from factory, to set things up.
54 */
55 @Override
56 public void setup(
57 String identifier,
58 ArtifactFactory factory,
59 Object context,
60 CallMeta callMeta,
61 Document data)
62 {
63 logger.debug("ManualPointsArtifact.setup");
64 super.setup(identifier, factory, context, callMeta, data);
65 initialize(null, context, callMeta);
66 }
67
68
69 /** Return the name of this artifact. */
70 public String getName() {
71 return ARTIFACT_NAME;
72 }
73
74
75 /** Access state data storing the jsonstring with points. */
76 public String getPointsData(String facetName) {
77 return getDataAsString(facetName + ".data");
78 }
79
80
81 /**
82 * Access state data storing the jsonstring with lines.
83 * @param facetName Name of facet or null if the so far
84 * only known case should be picked.
85 * @return (String) value of data element (expect json).
86 */
87 public String getLinesData(String facetName) {
88 if (facetName == null)
89 return getDataAsString("cross_section.manualpoints.lines");
90 // TODO .lineS?
91 return getDataAsString(facetName + ".line");
92 }
93
94
95 /** Setup state and facet. */
96 @Override
97 protected void initialize(Artifact artifact, Object context, CallMeta meta) {
98 logger.debug("ManualPointsArtifact.initialize");
99 List<Facet> fs = new ArrayList<Facet>();
100
101 DefaultState state = (DefaultState) getCurrentState(context);
102 state.computeInit(this, hash(), context, meta, fs);
103 if (!fs.isEmpty()) {
104 logger.debug("Facets to add in ManualPointsArtifact.initialize .");
105 facets.put(getCurrentStateId(), fs);
106 }
107 else {
108 logger.debug("No facets to add in ManualPointsArtifact.initialize ("
109 + state.getID() + ").");
110 }
111 }
112
113
114 /**
115 * Get value of line at index.
116 * @param index index in json array defining lines.
117 * @return water height of line at given index.
118 */
119 protected double getLine(int index) {
120 try {
121 JSONArray lines = new JSONArray((String) getLinesData(null));
122 JSONArray array = lines.getJSONArray(index);
123
124 return array.getDouble(0);
125 }
126 catch(JSONException e){
127 logger.error("Could not decode json for line.");
128 return 0d;
129 }
130 }
131
132
133 /**
134 * Get the water line "surface".
135 * @param index index of facets data.
136 * @param csl 'ground' against which to determine water surface.
137 * @param a (ignored in this implementation).
138 * @param b (ignored in this implementation).
139 */
140 @Override
141 public Lines.LineData getWaterLines(
142 int index,
143 FastCrossSectionLine csl,
144 double a, double b
145 ) {
146 List<Point2D> points = csl.getPoints();
147 return Lines.createWaterLines(points, getLine(index));
148 }
149
150 /**
151 * Determines Facets initial disposition regarding activity (think of
152 * selection in Client ThemeList GUI). This will be checked one time
153 * when the facet enters a collections describe document.
154 *
155 * @param facetName name of the facet.
156 * @param index index of the facet.
157 * @return 0 if not active
158 */
159 @Override
160 public int getInitialFacetActivity(
161 String outputName,
162 String facetName,
163 int index)
164 {
165 return 1;
166 }
167 }
168 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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