Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/WMSLineArtifact.java @ 4496:d8992459b408

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Add method to return the facets of an artifact This methos should be used to get the facets of an artifact instead of accessing the facets member variable directly.
author Björn Ricks <bjoern.ricks@intevation.de>
date Wed, 14 Nov 2012 11:11:04 +0100
parents 2fdbe78a8fc2
children a2735a4bf75e
rev   line source
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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 import de.intevation.flys.utils.GeometryUtils;
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25
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26
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27 public class WMSLineArtifact extends WMSDBArtifact {
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28
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29 public static final String NAME = "lines";
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30
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31
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32 private static final Logger logger =
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33 Logger.getLogger(WMSLineArtifact.class);
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34
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35
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36 @Override
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37 public void setup(
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38 String identifier,
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39 ArtifactFactory factory,
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40 Object context,
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41 CallMeta callMeta,
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42 Document data)
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43 {
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44 logger.debug("WMSLineArtifact.setup");
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45
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46 super.setup(identifier, factory, context, callMeta, data);
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47 }
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48
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49
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50 @Override
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51 public String getName() {
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52 return NAME;
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53 }
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55
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56 @Override
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57 public State getCurrentState(Object cc) {
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58 State s = new LineState(this);
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59
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60 List<Facet> fs = facets.get(getCurrentStateId());
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61
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62 DefaultOutput o = new DefaultOutput(
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63 "floodmap",
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64 "floodmap",
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65 "image/png",
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66 fs,
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67 "map");
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68
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69 s.getOutputs().add(o);
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70
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71 return s;
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72 }
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73
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74
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75 public static class LineState extends WMSDBState implements FacetTypes
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76 {
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77 private static final Logger logger =
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78 Logger.getLogger(LineState.class);
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79
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80 protected int riverId;
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81
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82 public LineState(WMSDBArtifact artifact) {
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83 super(artifact);
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84 riverId = 0;
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85 }
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86
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87 public int getRiverId() {
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88 if (riverId == 0) {
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89 String ids = artifact.getDataAsString("ids");
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90 String[] parts = ids.split(";");
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91
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92 try {
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93 riverId = Integer.parseInt(parts[0]);
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94 }
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95 catch (NumberFormatException nfe) {
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96 logger.error("Cannot parse river id from '" + parts[0] + "'");
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97 }
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98 }
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99
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100 return riverId;
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101 }
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102
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103 @Override
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104 protected String getFacetType() {
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105 return FLOODMAP_LINES;
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106 }
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107
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108 @Override
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109 protected String getUrl() {
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110 return FLYSUtils.getUserWMSUrl(artifact.identifier());
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111 }
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112
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113 @Override
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114 protected String getSrid() {
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115 River river = RiverFactory.getRiver(getRiverId());
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116 return FLYSUtils.getRiverSrid(river.getName());
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117 }
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118
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119 @Override
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120 protected Envelope getExtent(boolean reproject) {
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121 List<Line> lines = Line.getLines(getRiverId(), getName());
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122
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123 Envelope max = null;
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124
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125 for (Line l: lines) {
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126 Envelope env = l.getGeom().getEnvelopeInternal();
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127
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128 if (max == null) {
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129 max = env;
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130 continue;
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131 }
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132
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133 max.expandToInclude(env);
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134 }
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135
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136 return max != null && reproject
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137 ? GeometryUtils.transform(max, getSrid())
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138 : max;
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139 }
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140
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141 @Override
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142 protected String getFilter() {
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143 return "river_id=" + String.valueOf(getRiverId()) +
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144 " AND name='" + getName() + "'";
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145 }
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146
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147 @Override
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148 protected String getDataString() {
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149 String srid = getSrid();
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150
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151 if (FLYSUtils.isUsingOracle()) {
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152 return "geom FROM lines USING SRID " + srid;
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153 }
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154 else {
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155 return "geom FROM lines USING UNIQUE id USING SRID " + srid;
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156 }
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157 }
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158
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159 @Override
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160 protected String getGeometryType() {
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161 return "LINE";
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162 }
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163 } // end of WMSKmState
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164 }
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165 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org