Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/exports/MapGenerator.java @ 1792:49ad801076e4

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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. flys-artifacts/trunk@3115 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 28 Oct 2011 13:48:02 +0000
parents ef2300b450bf
children 1636686070f7
rev   line source
1774
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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.Facet;
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25
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26 import de.intevation.flys.artifacts.FLYSArtifact;
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27 import de.intevation.flys.artifacts.model.FacetTypes;
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28 import de.intevation.flys.artifacts.model.WMSDBLayerFacet;
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29 import de.intevation.flys.artifacts.model.WMSLayerFacet;
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30 import de.intevation.flys.utils.GeometryUtils;
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31 import de.intevation.flys.utils.MapfileGenerator;
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32
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34 public class MapGenerator implements OutGenerator, FacetTypes {
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35
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36 private static Logger logger = Logger.getLogger(MapGenerator.class);
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37
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38
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39 protected Artifact master;
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40
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41 protected Document request;
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42
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43 protected OutputStream out;
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44
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45 protected CallContext context;
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46
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47 protected List<WMSLayerFacet> layers;
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48
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49 protected Envelope maxExtent;
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50 protected Envelope initialExtent;
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51
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52 protected String srid;
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53
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54
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55
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56 @Override
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57 public void init(Document request, OutputStream out, CallContext context) {
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58 logger.debug("MapGenerator.init");
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59
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60 this.request = request;
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61 this.out = out;
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62 this.context = context;
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63
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64 this.layers = new ArrayList<WMSLayerFacet>();
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65
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66 this.maxExtent = null;
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67 this.initialExtent = null;
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68 }
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69
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70
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71 @Override
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72 public void setMasterArtifact(Artifact master) {
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73 logger.debug("MapGenerator.setMasterArtifact");
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74 this.master = master;
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75 }
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76
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77
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78 @Override
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79 public void doOut(
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80 Artifact artifact,
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81 Facet facet,
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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 = facet.getName();
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86
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87 logger.debug("MapGenerator.doOut: " +artifact.identifier()+" | "+name);
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88 FLYSArtifact flys = (FLYSArtifact) artifact;
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89
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90 Facet nativeFacet = flys.getNativeFacet(facet);
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91
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92 if (nativeFacet instanceof WMSLayerFacet) {
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93 WMSLayerFacet wms = (WMSLayerFacet) nativeFacet;
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94 Envelope extent = wms.getExtent();
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95
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96 layers.add(wms);
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97
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98 setMaxExtent(extent);
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99 setSrid(wms.getSrid());
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100
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101 if (FLOODMAP_WSPLGEN.equals(name)) {
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102 if (initialExtent == null) {
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103 setInitialExtent(extent);
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104 }
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105
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106 createWSPLGENLayer(flys, wms);
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107 }
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108 else if (FLOODMAP_BARRIERS.equals(name)) {
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109 createBarriersLayer(flys, wms);
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110 }
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111 else {
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112 createDatabaseLayer(flys, wms);
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113 }
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114 }
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115 else {
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116 logger.warn("Facet not supported: " + nativeFacet.getClass());
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117 }
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118 }
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119
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120
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121 protected void createWSPLGENLayer(FLYSArtifact flys, WMSLayerFacet wms) {
1776
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122 try {
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123 MapfileGenerator mfg = MapfileGenerator.getInstance();
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124 mfg.createUeskLayer(flys, wms);
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125 }
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126 catch (IOException ioe) {
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127 logger.error(ioe, ioe);
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128 }
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129 }
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130
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131
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132 protected void createBarriersLayer(FLYSArtifact flys, WMSLayerFacet wms) {
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133 MapfileGenerator mfg = MapfileGenerator.getInstance();
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134
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135 try {
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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136 mfg.createBarriersLayer(flys, wms);
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137 }
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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138 catch (FileNotFoundException fnfe) {
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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139 logger.error(fnfe, fnfe);
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140 }
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141 catch (IOException ioe) {
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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142 logger.error(ioe, ioe);
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143 }
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144 }
092e1e5020bc Added a new MapGenerator which only returns a map configuration document at the moment (work still in progress).
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145
092e1e5020bc Added a new MapGenerator which only returns a map configuration document at the moment (work still in progress).
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146
1792
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147 protected void createDatabaseLayer(FLYSArtifact flys, WMSLayerFacet wms) {
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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148 logger.debug("createDatabaseLayer for facet: " + wms.getName());
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149
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150 MapfileGenerator mfg = MapfileGenerator.getInstance();
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151
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152 try {
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153 File baseDir = mfg.getShapefileBaseDir();
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154 File artDir = new File(baseDir, flys.identifier());
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155
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156 if (artDir != null && !artDir.exists()) {
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157 logger.debug("Create new directory: " + artDir.getPath());
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158 artDir.mkdir();
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159 }
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160
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161 if (wms instanceof WMSDBLayerFacet) {
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162 mfg.createDatabaseLayer(flys, (WMSDBLayerFacet) wms);
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163 }
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164 else {
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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165 logger.warn("Cannot create DB layer from: " + wms.getClass());
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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166 }
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167 }
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168 catch (FileNotFoundException fnfe) {
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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169 logger.error(fnfe, fnfe);
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170 }
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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171 catch (IOException ioe) {
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172 logger.error(ioe, ioe);
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173 }
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174 }
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175
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176
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177 @Override
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178 public void generate()
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179 throws IOException
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180 {
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181 logger.debug("MapGenerator.generate");
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182
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183 MapfileGenerator.getInstance().update();
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184
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185 Document response = XMLUtils.newDocument();
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186 ElementCreator c = new ElementCreator(
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187 response,
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188 ArtifactNamespaceContext.NAMESPACE_URI,
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189 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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190
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191 Element root = c.create("floodmap");
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192 Element layers = c.create("layers");
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193
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194 response.appendChild(root);
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195 root.appendChild(layers);
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196
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197 appendLayers(layers);
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198 appendMapInformation(root, c);
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199
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200 XMLUtils.toStream(response, out);
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201 }
092e1e5020bc Added a new MapGenerator which only returns a map configuration document at the moment (work still in progress).
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202
092e1e5020bc Added a new MapGenerator which only returns a map configuration document at the moment (work still in progress).
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203
092e1e5020bc Added a new MapGenerator which only returns a map configuration document at the moment (work still in progress).
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204 protected void appendLayers(Element parent) {
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205 for (WMSLayerFacet facet: layers) {
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206 parent.appendChild(facet.toXML(parent.getOwnerDocument()));
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207 }
092e1e5020bc Added a new MapGenerator which only returns a map configuration document at the moment (work still in progress).
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208 }
092e1e5020bc Added a new MapGenerator which only returns a map configuration document at the moment (work still in progress).
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209
092e1e5020bc Added a new MapGenerator which only returns a map configuration document at the moment (work still in progress).
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210
092e1e5020bc Added a new MapGenerator which only returns a map configuration document at the moment (work still in progress).
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211 protected void setMaxExtent(Envelope maxExtent) {
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212 if (maxExtent == null) {
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213 return;
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214 }
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215
092e1e5020bc Added a new MapGenerator which only returns a map configuration document at the moment (work still in progress).
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216 if (this.maxExtent == null) {
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217 logger.debug("Set max extent to: " + maxExtent);
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218 this.maxExtent = maxExtent;
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219 return;
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220 }
092e1e5020bc Added a new MapGenerator which only returns a map configuration document at the moment (work still in progress).
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221
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222 logger.debug("Expand max extent by: " + maxExtent);
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223 logger.debug("Max extent before expanding: " + this.maxExtent);
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224 this.maxExtent.expandToInclude(maxExtent);
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225 logger.debug("Max extent after expanding: " + this.maxExtent);
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226 }
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227
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228
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229 protected void setInitialExtent(Envelope initialExtent) {
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230 if (initialExtent == null) {
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231 return;
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232 }
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233
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234 if (this.initialExtent == null) {
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235 logger.debug("Set initial extent to: " + initialExtent);
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236 this.initialExtent = initialExtent;
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237 return;
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238 }
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239
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240 logger.debug("Set initial extent to: " + initialExtent);
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241 this.initialExtent = initialExtent;
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242 }
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243
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244
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245 protected void setSrid(String srid) {
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246 if (srid == null || srid.length() == 0) {
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247 return;
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248 }
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249
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250 this.srid = srid;
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251 }
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252
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253
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254 protected void appendMapInformation(Element parent, ElementCreator c) {
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255 String mE = GeometryUtils.jtsBoundsToOLBounds(this.maxExtent);
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256 logger.debug("BUILD MAX EXTENT OF:" + this.maxExtent);
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257 logger.debug("BUILD MAX EXTENT:" + mE);
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258
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259 Element maxExtent = c.create("maxExtent");
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260 maxExtent.setTextContent(mE);
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261
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262 String iE = GeometryUtils.jtsBoundsToOLBounds(this.initialExtent);
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263 logger.debug("BUILD INITIAL EXTENT OF: " + this.initialExtent);
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264 logger.debug("BUILD INITIAL EXTENT: " + iE);
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265 Element initExtent = c.create("initialExtent");
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266 initExtent.setTextContent(iE);
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267
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268 Element srid = c.create("srid");
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269 srid.setTextContent(this.srid);
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270
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271 // TODO zoom levels
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272 // TODO resolutation
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273
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274 parent.appendChild(maxExtent);
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275 parent.appendChild(initExtent);
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276 parent.appendChild(srid);
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277 }
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278 }
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279 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org