Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/WMSFloodmapsArtifact.java @ 7471:fff862f4ef76

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Experimental caching of datacage recommendations. The respective hook is called a lot and running the datacage over and over again when loading data can be expensive. So the generated recommendations are cached for some time. Hopefully this improves the overall speed of loading data from the datacage.
author Sascha L. Teichmann <teichmann@intevation.de>
date Wed, 30 Oct 2013 15:26:21 +0100
parents af13ceeba52a
children 8d5ca5175038
rev   line source
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Sascha L. Teichmann <teichmann@intevation.de>
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.artifacts;
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10
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11 import java.util.List;
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12
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13 import org.w3c.dom.Document;
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14
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15 import org.apache.log4j.Logger;
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16
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17 import com.vividsolutions.jts.geom.Envelope;
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18
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19 import org.dive4elements.artifacts.ArtifactFactory;
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20 import org.dive4elements.artifacts.CallMeta;
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21
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22 import org.dive4elements.artifactdatabase.state.DefaultOutput;
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23 import org.dive4elements.artifactdatabase.state.Facet;
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24 import org.dive4elements.artifactdatabase.state.State;
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25
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26 import org.dive4elements.river.model.River;
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27 import org.dive4elements.river.model.Floodmaps;
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28
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29 import org.dive4elements.river.artifacts.model.FacetTypes;
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30 import org.dive4elements.river.artifacts.model.RiverFactory;
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31 import org.dive4elements.river.utils.RiverUtils;
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32 import org.dive4elements.river.utils.GeometryUtils;
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33
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34
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35 public class WMSFloodmapsArtifact extends WMSDBArtifact {
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36
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37 public static final String NAME = "floodmaps";
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38
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39
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40 private static final Logger logger =
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41 Logger.getLogger(WMSFloodmapsArtifact.class);
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42
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43
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44 @Override
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45 public void setup(
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46 String identifier,
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47 ArtifactFactory factory,
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48 Object context,
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49 CallMeta callMeta,
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50 Document data)
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51 {
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52 logger.debug("WMSFloodmapsArtifact.setup");
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53
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54 super.setup(identifier, factory, context, callMeta, data);
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55 }
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56
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57
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58 @Override
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59 public String getName() {
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60 return NAME;
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61 }
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62
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63
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64 @Override
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65 public State getCurrentState(Object cc) {
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66 State s = new FloodmapsState(this);
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67
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68 List<Facet> fs = getFacets(getCurrentStateId());
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69
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70 DefaultOutput o = new DefaultOutput(
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71 "floodmap",
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72 "floodmap",
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73 "image/png",
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74 fs,
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75 "map");
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76
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77 s.getOutputs().add(o);
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78
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79 return s;
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80 }
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81
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82
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83 public static class FloodmapsState extends WMSDBState implements FacetTypes
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84 {
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85 private static final Logger logger =
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86 Logger.getLogger(FloodmapsState.class);
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87
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88 protected int riverId;
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89
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90 public FloodmapsState(WMSDBArtifact artifact) {
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91 super(artifact);
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92 riverId = 0;
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93 }
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94
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95 @Override
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96 protected String getFacetType() {
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97 return FLOODMAP_FLOODMAPS;
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98 }
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99
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100 @Override
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101 protected String getUrl() {
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102 return RiverUtils.getUserWMSUrl(artifact.identifier());
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103 }
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104
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105 @Override
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106 protected String getSrid() {
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107 River river = RiverFactory.getRiver(getRiverId());
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108 return RiverUtils.getRiverSrid(river.getName());
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109 }
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110
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111 @Override
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112 protected Envelope getExtent(boolean reproject) {
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113 List<Floodmaps> floodmaps =
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114 Floodmaps.getFloodmaps(getRiverId(), getName());
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115
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116 Envelope max = null;
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117
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118 for (Floodmaps f: floodmaps) {
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119 Envelope env = f.getGeom().getEnvelopeInternal();
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120
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121 if (max == null) {
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122 max = env;
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123 continue;
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124 }
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125
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126 max.expandToInclude(env);
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127 }
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128
3918
2fdbe78a8fc2 Fixed various projection issues during map creation.
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129 return max != null && reproject
3301
c8f670ae96e8 Create extent of a map layer in the correct coordinate reference system.
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130 ? GeometryUtils.transform(max, getSrid())
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131 : max;
2581
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132 }
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133
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134 @Override
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135 protected String getFilter() {
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136 return "river_id=" + String.valueOf(getRiverId())
2683
f5af3adb3b95 Improved datacage configuration for floodmaps and maps and modified the WMS layer artifacts to support names for layers.
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137 + " AND name='" + getName() + "'";
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138 }
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139
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140 @Override
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141 protected String getDataString() {
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142 String srid = getSrid();
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143
5865
73da40528cf2 River artifacts: Renamed FLYSUtils to RiverUtils.
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144 if (RiverUtils.isUsingOracle()) {
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145 return "geom FROM floodmaps USING SRID " + srid;
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146 }
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147 else {
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148 return "geom FROM floodmaps USING UNIQUE id USING SRID " + srid;
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149 }
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150 }
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151
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152 @Override
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153 protected String getGeometryType() {
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b23c956c5aa2 Fixed broken Floodmaps in datacage for floodmap output.
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154 return "POLYGON";
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155 }
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156 } // end of WMSKmState
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157 }
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158 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org