Mercurial > dive4elements > river

comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/WMSLineArtifact.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 c8f670ae96e8
children b0ba96bbf01d
comparison
equal deleted inserted replaced
2987:98c7a46ec5ae 3318:dbe2f85bf160
1 package de.intevation.flys.artifacts;
2
3 import java.util.List;
4
5 import org.w3c.dom.Document;
6
7 import org.apache.log4j.Logger;
8
9 import com.vividsolutions.jts.geom.Envelope;
10
11 import de.intevation.artifacts.ArtifactFactory;
12 import de.intevation.artifacts.CallMeta;
13
14 import de.intevation.artifactdatabase.state.DefaultOutput;
15 import de.intevation.artifactdatabase.state.Facet;
16 import de.intevation.artifactdatabase.state.State;
17
18 import de.intevation.flys.model.River;
19 import de.intevation.flys.model.Line;
20
21 import de.intevation.flys.artifacts.model.FacetTypes;
22 import de.intevation.flys.artifacts.model.RiverFactory;
23 import de.intevation.flys.utils.FLYSUtils;
24 import de.intevation.flys.utils.GeometryUtils;
25
26
27 public class WMSLineArtifact extends WMSDBArtifact {
28
29 public static final String NAME = "lines";
30
31
32 private static final Logger logger =
33 Logger.getLogger(WMSLineArtifact.class);
34
35
36 @Override
37 public void setup(
38 String identifier,
39 ArtifactFactory factory,
40 Object context,
41 CallMeta callMeta,
42 Document data)
43 {
44 logger.debug("WMSLineArtifact.setup");
45
46 super.setup(identifier, factory, context, callMeta, data);
47 }
48
49
50 @Override
51 public String getName() {
52 return NAME;
53 }
54
55
56 @Override
57 public State getCurrentState(Object cc) {
58 State s = new LineState(this);
59
60 List<Facet> fs = facets.get(getCurrentStateId());
61
62 DefaultOutput o = new DefaultOutput(
63 "floodmap",
64 "floodmap",
65 "image/png",
66 fs,
67 "map");
68
69 s.getOutputs().add(o);
70
71 return s;
72 }
73
74
75 public static class LineState extends WMSDBState implements FacetTypes
76 {
77 private static final Logger logger =
78 Logger.getLogger(LineState.class);
79
80 protected int riverId;
81
82 public LineState(WMSDBArtifact artifact) {
83 super(artifact);
84 riverId = 0;
85 }
86
87 public int getRiverId() {
88 if (riverId == 0) {
89 String ids = artifact.getDataAsString("ids");
90 String[] parts = ids.split(";");
91
92 try {
93 riverId = Integer.valueOf(parts[0]);
94 }
95 catch (NumberFormatException nfe) {
96 logger.error("Cannot parse river id from '" + parts[0] + "'");
97 }
98 }
99
100 return riverId;
101 }
102
103 @Override
104 protected String getFacetType() {
105 return FLOODMAP_LINES;
106 }
107
108 @Override
109 protected String getUrl() {
110 return FLYSUtils.getUserWMSUrl(artifact.identifier());
111 }
112
113 @Override
114 protected String getSrid() {
115 River river = RiverFactory.getRiver(getRiverId());
116 return FLYSUtils.getRiverSrid(river.getName());
117 }
118
119 @Override
120 protected Envelope getExtent() {
121 List<Line> lines = Line.getLines(getRiverId(), getName());
122
123 Envelope max = null;
124
125 for (Line l: lines) {
126 Envelope env = l.getGeom().getEnvelopeInternal();
127
128 if (max == null) {
129 max = env;
130 continue;
131 }
132
133 max.expandToInclude(env);
134 }
135
136 return max != null
137 ? GeometryUtils.transform(max, getSrid())
138 : max;
139 }
140
141 @Override
142 protected String getFilter() {
143 return "river_id=" + String.valueOf(getRiverId()) +
144 " AND name='" + getName() + "'";
145 }
146
147 @Override
148 protected String getDataString() {
149 String srid = getSrid();
150
151 if (FLYSUtils.isUsingOracle()) {
152 return "geom FROM lines USING SRID " + srid;
153 }
154 else {
155 return "geom FROM lines USING UNIQUE id USING SRID " + srid;
156 }
157 }
158
159 @Override
160 protected String getGeometryType() {
161 return "LINE";
162 }
163 } // end of WMSKmState
164 }
165 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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