Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/exports/MapGenerator.java @ 1944:21a4d2c677a1

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Changed doOut signature, side effect from blackboard feature (to come). flys-artifacts/trunk@3334 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Wed, 30 Nov 2011 10:10:42 +0000
parents 1636686070f7
children a7c437c9547e
rev   line source
1774
092e1e5020bc Added a new MapGenerator which only returns a map configuration document at the moment (work still in progress).
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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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26
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27 import de.intevation.flys.artifacts.FLYSArtifact;
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28 import de.intevation.flys.artifacts.model.FacetTypes;
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29 import de.intevation.flys.artifacts.model.WMSDBLayerFacet;
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30 import de.intevation.flys.artifacts.model.WMSLayerFacet;
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31 import de.intevation.flys.utils.GeometryUtils;
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32 import de.intevation.flys.utils.MapfileGenerator;
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33 import de.intevation.flys.utils.ThemeUtil;
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34
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35
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36 public class MapGenerator implements OutGenerator, FacetTypes {
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37
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38 private static Logger logger = Logger.getLogger(MapGenerator.class);
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39
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40 protected Artifact master;
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41
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42 protected Document request;
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43
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44 protected OutputStream out;
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45
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46 protected CallContext context;
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47
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48 protected List<WMSLayerFacet> layers;
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49
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50 protected Envelope maxExtent;
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51 protected Envelope initialExtent;
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52
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53 protected String srid;
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54
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55
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56
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57 @Override
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58 public void init(Document request, OutputStream out, CallContext context) {
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59 logger.debug("MapGenerator.init");
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60
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61 this.request = request;
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62 this.out = out;
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63 this.context = context;
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64
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65 this.layers = new ArrayList<WMSLayerFacet>();
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66
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67 this.maxExtent = null;
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68 this.initialExtent = null;
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69 }
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71
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72 @Override
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73 public void setMasterArtifact(Artifact master) {
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74 logger.debug("MapGenerator.setMasterArtifact");
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75 this.master = master;
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76 }
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78
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79 @Override
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80 public void doOut(
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81 ArtifactAndFacet artifactFacet,
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82 Document attr,
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83 boolean visible)
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84 {
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85 String name = artifactFacet.getFacetName();
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86
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87 logger.debug("MapGenerator.doOut: " +
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88 artifactFacet.getArtifact().identifier() + " | " + name);
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89 FLYSArtifact flys = (FLYSArtifact) artifactFacet.getArtifact();
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90
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91 Facet nativeFacet = artifactFacet.getFacet();
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92
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93 if (nativeFacet instanceof WMSLayerFacet) {
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94 WMSLayerFacet wms = (WMSLayerFacet) nativeFacet;
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95 Envelope extent = wms.getExtent();
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96
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97 layers.add(wms);
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98
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99 setMaxExtent(extent);
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100 setSrid(wms.getSrid());
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101
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102 if (FLOODMAP_WSPLGEN.equals(name)) {
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103 if (initialExtent == null) {
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104 setInitialExtent(extent);
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105 }
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106
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107 createWSPLGENLayer(flys, wms);
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108 }
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109 else if (FLOODMAP_BARRIERS.equals(name)) {
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110 createBarriersLayer(flys, wms);
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111 }
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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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parents: 1781
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112 else {
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113 createDatabaseLayer(flys, wms, attr);
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114 }
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115 }
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116 else {
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117 logger.warn("Facet not supported: " + nativeFacet.getClass());
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118 }
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119 }
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120
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121
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122 protected void createWSPLGENLayer(FLYSArtifact flys, WMSLayerFacet wms) {
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123 try {
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124 MapfileGenerator mfg = MapfileGenerator.getInstance();
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125 mfg.createUeskLayer(flys, wms);
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126 }
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127 catch (IOException ioe) {
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128 logger.error(ioe, ioe);
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129 }
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130 }
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131
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132
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133 protected void createBarriersLayer(FLYSArtifact flys, WMSLayerFacet wms) {
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134 MapfileGenerator mfg = MapfileGenerator.getInstance();
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135
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136 try {
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137 mfg.createBarriersLayer(flys, wms);
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138 }
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139 catch (FileNotFoundException fnfe) {
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140 logger.error(fnfe, fnfe);
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141 }
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142 catch (IOException ioe) {
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143 logger.error(ioe, ioe);
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144 }
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145 }
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146
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147
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148 protected void createDatabaseLayer(
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149 FLYSArtifact flys,
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150 WMSLayerFacet wms,
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151 Document attr
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152 ) {
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153 logger.debug("createDatabaseLayer for facet: " + wms.getName());
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154
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155 MapfileGenerator mfg = MapfileGenerator.getInstance();
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156
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157 try {
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158 File baseDir = mfg.getShapefileBaseDir();
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159 File artDir = new File(baseDir, flys.identifier());
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160
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161 if (artDir != null && !artDir.exists()) {
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162 logger.debug("Create new directory: " + artDir.getPath());
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163 artDir.mkdir();
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164 }
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165
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166 if (wms instanceof WMSDBLayerFacet) {
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167 mfg.createDatabaseLayer(
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168 flys,
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169 (WMSDBLayerFacet) wms,
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170 ThemeUtil.createMapserverStyle(attr));
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171 }
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172 else {
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173 logger.warn("Cannot create DB layer from: " + wms.getClass());
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174 }
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175 }
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176 catch (FileNotFoundException fnfe) {
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177 logger.error(fnfe, fnfe);
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178 }
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179 catch (IOException ioe) {
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180 logger.error(ioe, ioe);
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181 }
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182 }
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183
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184
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185 @Override
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186 public void generate()
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187 throws IOException
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188 {
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189 logger.debug("MapGenerator.generate");
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190
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191 MapfileGenerator.getInstance().update();
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192
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193 Document response = XMLUtils.newDocument();
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194 ElementCreator c = new ElementCreator(
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195 response,
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196 ArtifactNamespaceContext.NAMESPACE_URI,
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197 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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198
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199 Element root = c.create("floodmap");
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200 Element layers = c.create("layers");
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201
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202 response.appendChild(root);
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203 root.appendChild(layers);
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204
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205 appendLayers(layers);
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206 appendMapInformation(root, c);
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207
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208 XMLUtils.toStream(response, out);
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209 }
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210
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211
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212 protected void appendLayers(Element parent) {
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213 for (WMSLayerFacet facet: layers) {
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214 parent.appendChild(facet.toXML(parent.getOwnerDocument()));
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215 }
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216 }
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217
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218
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219 protected void setMaxExtent(Envelope maxExtent) {
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220 if (maxExtent == null) {
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221 return;
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222 }
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223
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224 if (this.maxExtent == null) {
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225 logger.debug("Set max extent to: " + maxExtent);
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226 this.maxExtent = maxExtent;
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227 return;
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228 }
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229
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230 logger.debug("Expand max extent by: " + maxExtent);
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231 logger.debug("Max extent before expanding: " + this.maxExtent);
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232 this.maxExtent.expandToInclude(maxExtent);
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233 logger.debug("Max extent after expanding: " + this.maxExtent);
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234 }
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235
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236
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237 protected void setInitialExtent(Envelope initialExtent) {
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238 if (initialExtent == null) {
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239 return;
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240 }
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241
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242 if (this.initialExtent == null) {
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243 logger.debug("Set initial extent to: " + initialExtent);
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244 this.initialExtent = initialExtent;
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245 return;
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246 }
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247
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248 logger.debug("Set initial extent to: " + initialExtent);
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249 this.initialExtent = initialExtent;
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250 }
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251
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252
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253 protected void setSrid(String srid) {
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254 if (srid == null || srid.length() == 0) {
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255 return;
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256 }
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257
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258 this.srid = srid;
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259 }
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260
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261
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262 protected void appendMapInformation(Element parent, ElementCreator c) {
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263 String mE = GeometryUtils.jtsBoundsToOLBounds(this.maxExtent);
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264 logger.debug("BUILD MAX EXTENT OF:" + this.maxExtent);
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265 logger.debug("BUILD MAX EXTENT:" + mE);
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266
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267 Element maxExtent = c.create("maxExtent");
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268 maxExtent.setTextContent(mE);
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269
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270 String iE = GeometryUtils.jtsBoundsToOLBounds(this.initialExtent);
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271 logger.debug("BUILD INITIAL EXTENT OF: " + this.initialExtent);
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272 logger.debug("BUILD INITIAL EXTENT: " + iE);
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273 Element initExtent = c.create("initialExtent");
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274 initExtent.setTextContent(iE);
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275
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276 Element srid = c.create("srid");
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277 srid.setTextContent(this.srid);
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278
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279 // TODO zoom levels
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280 // TODO resolutation
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281
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282 parent.appendChild(maxExtent);
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283 parent.appendChild(initExtent);
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284 parent.appendChild(srid);
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285 }
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286 }
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287 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org