Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/exports/MapGenerator.java @ 1979:a7c437c9547e

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Added a getSettings() operation to OutGenerator - FLYSArtifactCollection will now evaluate all available Outputs and create initial Settings using OutGenerators if the Settings for an Output is missing. flys-artifacts/trunk@3409 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 14 Dec 2011 10:20:56 +0000
parents 21a4d2c677a1
children 0318fa6f0844
rev   line source
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1 package de.intevation.flys.exports;
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2
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49ad801076e4 Enabled the MapGenerator to create WMS layers with database datastore - riveraxis is the first layer that is no longer fetched from static WMS service but from user specific one.
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3 import java.io.File;
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4 import java.io.FileNotFoundException;
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5 import java.io.IOException;
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6 import java.io.OutputStream;
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7 import java.util.ArrayList;
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8 import java.util.List;
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9
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10 import org.w3c.dom.Document;
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11 import org.w3c.dom.Element;
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12
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13 import org.apache.log4j.Logger;
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14
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15 import com.vividsolutions.jts.geom.Envelope;
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16
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17 import de.intevation.artifacts.Artifact;
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18 import de.intevation.artifacts.CallContext;
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19
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20 import de.intevation.artifacts.common.ArtifactNamespaceContext;
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21 import de.intevation.artifacts.common.utils.XMLUtils;
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22 import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator;
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23
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24 import de.intevation.artifactdatabase.state.ArtifactAndFacet;
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25 import de.intevation.artifactdatabase.state.Facet;
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a7c437c9547e Added a getSettings() operation to OutGenerator - FLYSArtifactCollection will now evaluate all available Outputs and create initial Settings using OutGenerators if the Settings for an Output is missing.
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26 import de.intevation.artifactdatabase.state.Settings;
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27
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28 import de.intevation.flys.artifacts.FLYSArtifact;
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29 import de.intevation.flys.artifacts.model.FacetTypes;
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30 import de.intevation.flys.artifacts.model.WMSDBLayerFacet;
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31 import de.intevation.flys.artifacts.model.WMSLayerFacet;
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32 import de.intevation.flys.utils.GeometryUtils;
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33 import de.intevation.flys.utils.MapfileGenerator;
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1636686070f7 Initial commit to support styles in maps.
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34 import de.intevation.flys.utils.ThemeUtil;
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36
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37 public class MapGenerator implements OutGenerator, FacetTypes {
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38
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39 private static Logger logger = Logger.getLogger(MapGenerator.class);
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40
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41 protected Artifact master;
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42
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43 protected Document request;
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44
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45 protected OutputStream out;
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46
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47 protected CallContext context;
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48
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49 protected List<WMSLayerFacet> layers;
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50
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51 protected Envelope maxExtent;
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52 protected Envelope initialExtent;
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53
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54 protected String srid;
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55
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57
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58 @Override
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59 public void init(Document request, OutputStream out, CallContext context) {
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60 logger.debug("MapGenerator.init");
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61
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62 this.request = request;
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63 this.out = out;
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64 this.context = context;
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65
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66 this.layers = new ArrayList<WMSLayerFacet>();
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67
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68 this.maxExtent = null;
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69 this.initialExtent = null;
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70 }
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71
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72
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73 @Override
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74 public void setMasterArtifact(Artifact master) {
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75 logger.debug("MapGenerator.setMasterArtifact");
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76 this.master = master;
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77 }
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78
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79
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80 @Override
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81 public void doOut(
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82 ArtifactAndFacet artifactFacet,
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83 Document attr,
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84 boolean visible)
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85 {
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86 String name = artifactFacet.getFacetName();
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87
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88 logger.debug("MapGenerator.doOut: " +
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89 artifactFacet.getArtifact().identifier() + " | " + name);
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90 FLYSArtifact flys = (FLYSArtifact) artifactFacet.getArtifact();
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91
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92 Facet nativeFacet = artifactFacet.getFacet();
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93
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94 if (nativeFacet instanceof WMSLayerFacet) {
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95 WMSLayerFacet wms = (WMSLayerFacet) nativeFacet;
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96 Envelope extent = wms.getExtent();
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97
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98 layers.add(wms);
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99
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100 setMaxExtent(extent);
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101 setSrid(wms.getSrid());
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102
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103 if (FLOODMAP_WSPLGEN.equals(name)) {
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104 if (initialExtent == null) {
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105 setInitialExtent(extent);
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106 }
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107
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108 createWSPLGENLayer(flys, wms);
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109 }
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110 else if (FLOODMAP_BARRIERS.equals(name)) {
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111 createBarriersLayer(flys, wms);
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112 }
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113 else {
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114 createDatabaseLayer(flys, wms, attr);
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115 }
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116 }
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117 else {
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118 logger.warn("Facet not supported: " + nativeFacet.getClass());
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119 }
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120 }
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121
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122
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123 protected void createWSPLGENLayer(FLYSArtifact flys, WMSLayerFacet wms) {
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124 try {
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125 MapfileGenerator mfg = MapfileGenerator.getInstance();
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126 mfg.createUeskLayer(flys, wms);
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127 }
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128 catch (IOException ioe) {
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129 logger.error(ioe, ioe);
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130 }
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131 }
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132
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133
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134 protected void createBarriersLayer(FLYSArtifact flys, WMSLayerFacet wms) {
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135 MapfileGenerator mfg = MapfileGenerator.getInstance();
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136
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137 try {
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138 mfg.createBarriersLayer(flys, wms);
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139 }
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140 catch (FileNotFoundException fnfe) {
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141 logger.error(fnfe, fnfe);
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142 }
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143 catch (IOException ioe) {
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144 logger.error(ioe, ioe);
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145 }
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146 }
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147
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148
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149 protected void createDatabaseLayer(
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150 FLYSArtifact flys,
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151 WMSLayerFacet wms,
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152 Document attr
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153 ) {
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154 logger.debug("createDatabaseLayer for facet: " + wms.getName());
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155
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156 MapfileGenerator mfg = MapfileGenerator.getInstance();
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157
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158 try {
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159 File baseDir = mfg.getShapefileBaseDir();
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160 File artDir = new File(baseDir, flys.identifier());
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161
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162 if (artDir != null && !artDir.exists()) {
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163 logger.debug("Create new directory: " + artDir.getPath());
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164 artDir.mkdir();
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165 }
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166
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167 if (wms instanceof WMSDBLayerFacet) {
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168 mfg.createDatabaseLayer(
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169 flys,
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170 (WMSDBLayerFacet) wms,
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171 ThemeUtil.createMapserverStyle(attr));
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172 }
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173 else {
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174 logger.warn("Cannot create DB layer from: " + wms.getClass());
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175 }
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176 }
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177 catch (FileNotFoundException fnfe) {
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178 logger.error(fnfe, fnfe);
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179 }
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180 catch (IOException ioe) {
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181 logger.error(ioe, ioe);
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182 }
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183 }
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184
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185
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186 @Override
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187 public void generate()
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188 throws IOException
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189 {
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190 logger.debug("MapGenerator.generate");
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191
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192 MapfileGenerator.getInstance().update();
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193
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194 Document response = XMLUtils.newDocument();
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195 ElementCreator c = new ElementCreator(
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196 response,
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197 ArtifactNamespaceContext.NAMESPACE_URI,
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198 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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199
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200 Element root = c.create("floodmap");
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201 Element layers = c.create("layers");
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202
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203 response.appendChild(root);
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204 root.appendChild(layers);
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205
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206 appendLayers(layers);
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207 appendMapInformation(root, c);
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208
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209 XMLUtils.toStream(response, out);
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210 }
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211
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212
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213 protected void appendLayers(Element parent) {
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214 for (WMSLayerFacet facet: layers) {
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215 parent.appendChild(facet.toXML(parent.getOwnerDocument()));
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216 }
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217 }
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218
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219
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220 protected void setMaxExtent(Envelope maxExtent) {
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221 if (maxExtent == null) {
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222 return;
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223 }
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224
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225 if (this.maxExtent == null) {
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226 logger.debug("Set max extent to: " + maxExtent);
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227 this.maxExtent = maxExtent;
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228 return;
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229 }
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230
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231 logger.debug("Expand max extent by: " + maxExtent);
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232 logger.debug("Max extent before expanding: " + this.maxExtent);
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233 this.maxExtent.expandToInclude(maxExtent);
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234 logger.debug("Max extent after expanding: " + this.maxExtent);
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235 }
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236
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237
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238 protected void setInitialExtent(Envelope initialExtent) {
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239 if (initialExtent == null) {
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240 return;
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241 }
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242
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243 if (this.initialExtent == null) {
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244 logger.debug("Set initial extent to: " + initialExtent);
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245 this.initialExtent = initialExtent;
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246 return;
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247 }
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248
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249 logger.debug("Set initial extent to: " + initialExtent);
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250 this.initialExtent = initialExtent;
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251 }
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252
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253
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254 protected void setSrid(String srid) {
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255 if (srid == null || srid.length() == 0) {
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256 return;
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257 }
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258
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259 this.srid = srid;
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260 }
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261
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262
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263 protected void appendMapInformation(Element parent, ElementCreator c) {
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264 String mE = GeometryUtils.jtsBoundsToOLBounds(this.maxExtent);
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265 logger.debug("BUILD MAX EXTENT OF:" + this.maxExtent);
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266 logger.debug("BUILD MAX EXTENT:" + mE);
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267
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268 Element maxExtent = c.create("maxExtent");
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269 maxExtent.setTextContent(mE);
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270
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271 String iE = GeometryUtils.jtsBoundsToOLBounds(this.initialExtent);
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272 logger.debug("BUILD INITIAL EXTENT OF: " + this.initialExtent);
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273 logger.debug("BUILD INITIAL EXTENT: " + iE);
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274 Element initExtent = c.create("initialExtent");
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275 initExtent.setTextContent(iE);
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276
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277 Element srid = c.create("srid");
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278 srid.setTextContent(this.srid);
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279
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280 // TODO zoom levels
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281 // TODO resolutation
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282
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283 parent.appendChild(maxExtent);
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284 parent.appendChild(initExtent);
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285 parent.appendChild(srid);
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286 }
1979
a7c437c9547e Added a getSettings() operation to OutGenerator - FLYSArtifactCollection will now evaluate all available Outputs and create initial Settings using OutGenerators if the Settings for an Output is missing.
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287
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288
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289 /**
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290 * Returns an instance of <i>EmptySettings</i> currently!
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291 *
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292 * @return an instance of <i>EmptySettings</i>.
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293 */
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294 public Settings getSettings() {
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295 return new EmptySettings();
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296 }
1774
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297 }
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298 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org