Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/WMSFloodplainArtifact.java @ 7471:fff862f4ef76
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> |
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date | Wed, 30 Oct 2013 15:26:21 +0100 |
parents | af13ceeba52a |
children | 8d5ca5175038 |
rev | line source |
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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.Floodplain; |
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27 import org.dive4elements.river.model.River; |
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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 WMSFloodplainArtifact extends WMSDBArtifact { |
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36 |
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37 public static final String NAME = "floodplain"; |
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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(WMSFloodplainArtifact.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("WMSFloodplainArtifact.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 FloodplainState(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 FloodplainState 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(FloodplainState.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 FloodplainState(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 protected River getRiver() { |
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96 return RiverFactory.getRiver(getRiverId()); |
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97 } |
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98 |
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99 @Override |
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100 protected String getFacetType() { |
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101 return FLOODMAP_FLOODPLAIN; |
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102 } |
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103 |
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104 @Override |
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105 protected String getUrl() { |
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106 return RiverUtils.getUserWMSUrl(artifact.identifier()); |
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107 } |
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108 |
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109 @Override |
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110 protected String getSrid() { |
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111 River river = getRiver(); |
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112 return RiverUtils.getRiverSrid(river.getName()); |
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113 } |
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114 |
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115 @Override |
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116 protected Envelope getExtent(boolean reproject) { |
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117 River river = getRiver(); |
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118 List<Floodplain> fps; |
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119 |
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120 String kind = getIdPart(2); |
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121 |
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122 if (kind != null && ! kind.equals("1")) { |
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123 fps = Floodplain.getFloodplains(river.getName(), |
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124 getName(), Integer.parseInt(kind)); |
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125 } else { |
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126 fps = Floodplain.getFloodplains(river.getName(), 1); |
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127 } |
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128 |
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129 Envelope max = null; |
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130 |
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131 for (Floodplain fp: fps) { |
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132 Envelope env = fp.getGeom().getEnvelopeInternal(); |
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133 |
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134 if (max == null) { |
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135 max = env; |
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136 continue; |
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137 } |
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138 |
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139 max.expandToInclude(env); |
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140 } |
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141 |
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142 return max != null && reproject |
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143 ? GeometryUtils.transform(max, getSrid()) |
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144 : max; |
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145 } |
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146 |
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147 @Override |
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148 protected String getFilter() { |
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149 String kind = getIdPart(2); |
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150 if (kind != null && ! kind.equals("1")) { |
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151 return "river_id=" + String.valueOf(getRiverId()) + |
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152 " AND kind_id=" + kind + |
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153 " AND name='" + getName() + "'"; |
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154 } |
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155 return "river_id=" + String.valueOf(getRiverId()) + |
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156 " AND kind_id=1"; |
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157 } |
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158 |
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159 @Override |
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160 protected String getDataString() { |
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161 String srid = getSrid(); |
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162 |
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163 if (RiverUtils.isUsingOracle()) { |
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164 return "geom FROM floodplain USING SRID " + srid; |
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165 } |
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166 else { |
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167 return "geom FROM floodplain USING UNIQUE id USING SRID " +srid; |
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168 } |
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169 } |
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170 |
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171 @Override |
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172 protected String getGeometryType() { |
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173 return "POLYGON"; |
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174 } |
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175 } // end of WMSKmState |
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176 } |
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177 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |