Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/WMSCatchmentArtifact.java @ 4655:cd44d28d0fbc

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Move the access to artifact data to the Access object Use BedHeightAccess class to receive the data from the artifact. This abstracts the data access from the actual artifact.
author Björn Ricks <bjoern.ricks@intevation.de>
date Tue, 11 Dec 2012 09:44:04 +0100
parents a2735a4bf75e
children
rev   line source
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410e40b88c7a Added new WMSCatchmentArtifact for displaying catchments 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.Catchment;
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19 import de.intevation.flys.model.River;
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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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26
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27 public class WMSCatchmentArtifact extends WMSDBArtifact {
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28
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29 public static final String NAME = "catchment";
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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(WMSCatchmentArtifact.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("WMSCatchmentArtifact.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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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 CatchmentState(this);
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59
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60 List<Facet> fs = getFacets(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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74
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75 public static class CatchmentState 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(CatchmentState.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 CatchmentState(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 '" + ids + "'");
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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_CATCHMENT;
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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<Catchment> catchments =
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122 Catchment.getCatchments(getRiverId(), getName());
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123
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124 Envelope max = null;
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125
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126 for (Catchment c: catchments) {
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127 Envelope env = c.getGeom().getEnvelopeInternal();
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128
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129 if (max == null) {
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130 max = env;
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131 continue;
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132 }
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133
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134 max.expandToInclude(env);
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135 }
3305
b24920235944 Removed trailing whitespace.
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136
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2fdbe78a8fc2 Fixed various projection issues during map creation.
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137 return max != null && reproject
3301
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138 ? GeometryUtils.transform(max, getSrid())
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139 : max;
1856
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140 }
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141
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142 @Override
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143 protected String getFilter() {
2671
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144 return "river_id=" + String.valueOf(getRiverId())
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145 + " AND name='" + getName() + "'";
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146 }
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147
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148 @Override
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149 protected String getDataString() {
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150 String srid = getSrid();
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151
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152 if (FLYSUtils.isUsingOracle()) {
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153 return "geom FROM catchment USING SRID " + srid;
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154 }
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155 else {
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156 return "geom FROM catchment USING UNIQUE id USING SRID " + srid;
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157 }
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158 }
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159
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160 @Override
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161 protected String getGeometryType() {
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162 return "POLYGON";
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163 }
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164 } // end of WMSKmState
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165 }
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166 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org