Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/exports/MapGenerator.java @ 2047:0318fa6f0844

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Make use of first attributes specified in the ChartSettings. NOTE: work is still in progress. flys-artifacts/trunk@3535 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 23 Dec 2011 08:57:25 +0000
parents a7c437c9547e
children 007a8f5ed9f1
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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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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35
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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 Settings settings;
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44
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45 protected Document request;
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46
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47 protected OutputStream out;
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48
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49 protected CallContext context;
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50
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51 protected List<WMSLayerFacet> layers;
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52
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53 protected Envelope maxExtent;
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54 protected Envelope initialExtent;
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55
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56 protected String srid;
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57
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58
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59
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60 @Override
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61 public void init(Document request, OutputStream out, CallContext context) {
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62 logger.debug("MapGenerator.init");
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63
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64 this.request = request;
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65 this.out = out;
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66 this.context = context;
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67
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68 this.layers = new ArrayList<WMSLayerFacet>();
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69
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70 this.maxExtent = null;
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71 this.initialExtent = null;
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72 }
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73
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74
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75 @Override
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76 public void setMasterArtifact(Artifact master) {
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77 logger.debug("MapGenerator.setMasterArtifact");
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78 this.master = master;
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79 }
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80
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81
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82 @Override
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83 public void doOut(
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84 ArtifactAndFacet artifactFacet,
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85 Document attr,
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86 boolean visible)
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87 {
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88 String name = artifactFacet.getFacetName();
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89
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90 logger.debug("MapGenerator.doOut: " +
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91 artifactFacet.getArtifact().identifier() + " | " + name);
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92 FLYSArtifact flys = (FLYSArtifact) artifactFacet.getArtifact();
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93
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94 Facet nativeFacet = artifactFacet.getFacet();
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95
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96 if (nativeFacet instanceof WMSLayerFacet) {
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97 WMSLayerFacet wms = (WMSLayerFacet) nativeFacet;
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98 Envelope extent = wms.getExtent();
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99
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100 layers.add(wms);
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101
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102 setMaxExtent(extent);
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103 setSrid(wms.getSrid());
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104
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105 if (FLOODMAP_WSPLGEN.equals(name)) {
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106 if (initialExtent == null) {
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107 setInitialExtent(extent);
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108 }
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109
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110 createWSPLGENLayer(flys, wms);
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111 }
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112 else if (FLOODMAP_BARRIERS.equals(name)) {
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113 createBarriersLayer(flys, wms);
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114 }
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115 else {
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116 createDatabaseLayer(flys, wms, attr);
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117 }
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118 }
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119 else {
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120 logger.warn("Facet not supported: " + nativeFacet.getClass());
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121 }
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122 }
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123
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124
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125 protected void createWSPLGENLayer(FLYSArtifact flys, WMSLayerFacet wms) {
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126 try {
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127 MapfileGenerator mfg = MapfileGenerator.getInstance();
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128 mfg.createUeskLayer(flys, wms);
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129 }
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130 catch (IOException ioe) {
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131 logger.error(ioe, ioe);
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132 }
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133 }
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134
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135
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136 protected void createBarriersLayer(FLYSArtifact flys, WMSLayerFacet wms) {
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137 MapfileGenerator mfg = MapfileGenerator.getInstance();
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138
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139 try {
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140 mfg.createBarriersLayer(flys, wms);
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141 }
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142 catch (FileNotFoundException fnfe) {
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143 logger.error(fnfe, fnfe);
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144 }
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145 catch (IOException ioe) {
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146 logger.error(ioe, ioe);
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147 }
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148 }
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149
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150
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151 protected void createDatabaseLayer(
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152 FLYSArtifact flys,
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153 WMSLayerFacet wms,
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154 Document attr
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155 ) {
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156 logger.debug("createDatabaseLayer for facet: " + wms.getName());
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157
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158 MapfileGenerator mfg = MapfileGenerator.getInstance();
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159
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160 try {
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161 File baseDir = mfg.getShapefileBaseDir();
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162 File artDir = new File(baseDir, flys.identifier());
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163
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164 if (artDir != null && !artDir.exists()) {
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165 logger.debug("Create new directory: " + artDir.getPath());
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166 artDir.mkdir();
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167 }
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168
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169 if (wms instanceof WMSDBLayerFacet) {
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170 mfg.createDatabaseLayer(
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171 flys,
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172 (WMSDBLayerFacet) wms,
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173 ThemeUtil.createMapserverStyle(attr));
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174 }
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175 else {
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176 logger.warn("Cannot create DB layer from: " + wms.getClass());
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177 }
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178 }
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179 catch (FileNotFoundException fnfe) {
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180 logger.error(fnfe, fnfe);
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181 }
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182 catch (IOException ioe) {
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183 logger.error(ioe, ioe);
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184 }
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185 }
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186
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187
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188 @Override
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189 public void generate()
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190 throws IOException
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191 {
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192 logger.debug("MapGenerator.generate");
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193
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194 MapfileGenerator.getInstance().update();
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195
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196 Document response = XMLUtils.newDocument();
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197 ElementCreator c = new ElementCreator(
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198 response,
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199 ArtifactNamespaceContext.NAMESPACE_URI,
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200 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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201
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202 Element root = c.create("floodmap");
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203 Element layers = c.create("layers");
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204
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205 response.appendChild(root);
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206 root.appendChild(layers);
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207
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208 appendLayers(layers);
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209 appendMapInformation(root, c);
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210
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211 XMLUtils.toStream(response, out);
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212 }
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213
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214
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215 protected void appendLayers(Element parent) {
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216 for (WMSLayerFacet facet: layers) {
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217 parent.appendChild(facet.toXML(parent.getOwnerDocument()));
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218 }
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219 }
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220
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221
092e1e5020bc Added a new MapGenerator which only returns a map configuration document at the moment (work still in progress).
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222 protected void setMaxExtent(Envelope maxExtent) {
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223 if (maxExtent == null) {
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224 return;
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225 }
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226
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227 if (this.maxExtent == null) {
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228 logger.debug("Set max extent to: " + maxExtent);
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229 this.maxExtent = maxExtent;
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230 return;
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231 }
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232
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233 logger.debug("Expand max extent by: " + maxExtent);
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234 logger.debug("Max extent before expanding: " + this.maxExtent);
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235 this.maxExtent.expandToInclude(maxExtent);
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236 logger.debug("Max extent after expanding: " + this.maxExtent);
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237 }
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238
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239
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240 protected void setInitialExtent(Envelope initialExtent) {
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241 if (initialExtent == null) {
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242 return;
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243 }
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244
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245 if (this.initialExtent == null) {
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246 logger.debug("Set initial extent to: " + initialExtent);
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247 this.initialExtent = initialExtent;
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248 return;
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249 }
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250
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251 logger.debug("Set initial extent to: " + initialExtent);
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252 this.initialExtent = initialExtent;
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253 }
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254
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255
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256 protected void setSrid(String srid) {
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257 if (srid == null || srid.length() == 0) {
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258 return;
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259 }
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260
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261 this.srid = srid;
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262 }
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263
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264
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265 protected void appendMapInformation(Element parent, ElementCreator c) {
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266 String mE = GeometryUtils.jtsBoundsToOLBounds(this.maxExtent);
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267 logger.debug("BUILD MAX EXTENT OF:" + this.maxExtent);
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268 logger.debug("BUILD MAX EXTENT:" + mE);
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269
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270 Element maxExtent = c.create("maxExtent");
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271 maxExtent.setTextContent(mE);
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272
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273 String iE = GeometryUtils.jtsBoundsToOLBounds(this.initialExtent);
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274 logger.debug("BUILD INITIAL EXTENT OF: " + this.initialExtent);
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275 logger.debug("BUILD INITIAL EXTENT: " + iE);
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276 Element initExtent = c.create("initialExtent");
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277 initExtent.setTextContent(iE);
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278
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279 Element srid = c.create("srid");
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280 srid.setTextContent(this.srid);
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281
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282 // TODO zoom levels
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283 // TODO resolutation
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284
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285 parent.appendChild(maxExtent);
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286 parent.appendChild(initExtent);
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287 parent.appendChild(srid);
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288 }
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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289
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290
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291 /**
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292 * Returns an instance of <i>EmptySettings</i> currently!
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293 *
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294 * @return an instance of <i>EmptySettings</i>.
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295 */
2047
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296 @Override
1979
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297 public Settings getSettings() {
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298 return new EmptySettings();
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299 }
2047
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300
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301
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302 @Override
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303 public void setSettings(Settings settings) {
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304 this.settings = settings;
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305 }
1774
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306 }
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307 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org