Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/WMSLineArtifact.java @ 3297:79c8e0d9fdea

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SQ relation: Use only first time period. flys-artifacts/trunk@4982 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Fri, 13 Jul 2012 10:12:45 +0000
parents 0ca00d547f35
children c8f670ae96e8
rev   line source
1870
ec458853f560 Added new WMSLineArtifact for displaying lines in maps.
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1 package de.intevation.flys.artifacts;
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2
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3 import java.util.List;
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4
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5 import org.w3c.dom.Document;
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6
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7 import org.apache.log4j.Logger;
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8
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9 import com.vividsolutions.jts.geom.Envelope;
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10
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11 import de.intevation.artifacts.ArtifactFactory;
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12 import de.intevation.artifacts.CallMeta;
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13
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14 import de.intevation.artifactdatabase.state.DefaultOutput;
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15 import de.intevation.artifactdatabase.state.Facet;
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16 import de.intevation.artifactdatabase.state.State;
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17
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18 import de.intevation.flys.model.River;
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19 import de.intevation.flys.model.Line;
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20
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21 import de.intevation.flys.artifacts.model.FacetTypes;
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22 import de.intevation.flys.artifacts.model.RiverFactory;
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23 import de.intevation.flys.utils.FLYSUtils;
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24
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25
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26 public class WMSLineArtifact extends WMSDBArtifact {
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27
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28 public static final String NAME = "lines";
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29
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30
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31 private static final Logger logger =
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32 Logger.getLogger(WMSLineArtifact.class);
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33
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34
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35 @Override
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36 public void setup(
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37 String identifier,
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38 ArtifactFactory factory,
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39 Object context,
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40 CallMeta callMeta,
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41 Document data)
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42 {
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43 logger.debug("WMSLineArtifact.setup");
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44
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45 super.setup(identifier, factory, context, callMeta, data);
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46 }
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47
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48
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49 @Override
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50 public String getName() {
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51 return NAME;
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52 }
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53
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54
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55 @Override
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56 public State getCurrentState(Object cc) {
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57 State s = new LineState(this);
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58
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59 List<Facet> fs = facets.get(getCurrentStateId());
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60
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61 DefaultOutput o = new DefaultOutput(
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62 "floodmap",
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63 "floodmap",
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64 "image/png",
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65 fs,
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66 "map");
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67
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68 s.getOutputs().add(o);
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69
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70 return s;
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71 }
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72
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73
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74 public static class LineState extends WMSDBState implements FacetTypes
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75 {
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76 private static final Logger logger =
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77 Logger.getLogger(LineState.class);
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78
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79 protected int riverId;
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80
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81 public LineState(WMSDBArtifact artifact) {
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82 super(artifact);
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83 riverId = 0;
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84 }
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85
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86 public int getRiverId() {
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87 if (riverId == 0) {
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88 String ids = artifact.getDataAsString("ids");
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89 String[] parts = ids.split(";");
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90
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91 try {
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92 riverId = Integer.valueOf(parts[0]);
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93 }
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94 catch (NumberFormatException nfe) {
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95 logger.error("Cannot parse river id from '" + parts[0] + "'");
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96 }
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97 }
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98
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99 return riverId;
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100 }
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101
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102 @Override
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103 protected String getFacetType() {
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104 return FLOODMAP_LINES;
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105 }
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106
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107 @Override
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108 protected String getUrl() {
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109 return FLYSUtils.getUserWMSUrl(artifact.identifier());
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110 }
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111
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112 @Override
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113 protected String getSrid() {
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114 River river = RiverFactory.getRiver(getRiverId());
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115 return FLYSUtils.getRiverSrid(river.getName());
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116 }
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117
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118 @Override
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119 protected Envelope getExtent() {
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120 List<Line> lines = Line.getLines(getRiverId(), getName());
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121
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122 Envelope max = null;
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123
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124 for (Line l: lines) {
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125 Envelope env = l.getGeom().getEnvelopeInternal();
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126
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127 if (max == null) {
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128 max = env;
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129 continue;
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130 }
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131
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132 max.expandToInclude(env);
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133 }
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134
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135 return max;
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136 }
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137
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138 @Override
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139 protected String getFilter() {
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140 return "river_id=" + String.valueOf(getRiverId()) +
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141 " AND name='" + getName() + "'";
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142 }
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143
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144 @Override
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145 protected String getDataString() {
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146 String srid = getSrid();
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147
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148 if (FLYSUtils.isUsingOracle()) {
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149 return "geom FROM lines USING SRID " + srid;
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150 }
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151 else {
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152 return "geom FROM lines USING UNIQUE id USING SRID " + srid;
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153 }
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154 }
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155
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156 @Override
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157 protected String getGeometryType() {
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158 return "LINE";
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159 }
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160 } // end of WMSKmState
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161 }
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162 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org