Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/utils/MapfileGenerator.java @ 6332:f5bb53106ae8

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Remove createBarriersLayer and createBarriers The generated mapfiles did not work and were just confusing. This looks like historical cruft that was never deleted. The real barrier mapfiles are created in the Floodmap state
author Andre Heinecke <aheinecke@intevation.de>
date Thu, 13 Jun 2013 17:24:56 +0200
parents af13ceeba52a
children 81ae2a4873f2
rev   line source
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4897a58c8746 River artifacts: Added new copyright headers.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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Sascha L. Teichmann <teichmann@intevation.de>
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.utils;
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10
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11 import org.dive4elements.artifacts.common.utils.Config;
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12 import org.dive4elements.river.artifacts.model.LayerInfo;
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13
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14 import java.io.File;
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15 import java.io.FileNotFoundException;
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16 import java.io.FileWriter;
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17 import java.io.FilenameFilter;
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18 import java.io.IOException;
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19 import java.io.Writer;
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20 import java.util.ArrayList;
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21 import java.util.Date;
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22 import java.util.List;
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23
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24 import org.apache.log4j.Logger;
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25 import org.apache.velocity.Template;
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26 import org.apache.velocity.VelocityContext;
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27 import org.apache.velocity.app.VelocityEngine;
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28 import org.apache.velocity.runtime.RuntimeConstants;
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29
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30 /**
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31 * This class iterates over a bunch of directories, searches for meta
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32 * information coresponding to shapefiles and creates a mapfile which is used by
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33 * a <i>MapServer</i>.
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34 *
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35 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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36 */
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37 public abstract class MapfileGenerator
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38 {
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39 public static final String WSPLGEN_RESULT_SHAPE = "wsplgen.shp";
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40 public static final String WSPLGEN_LINES_SHAPE = "barrier_lines.shp";
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41 public static final String WSPLGEN_POLYGONS_SHAPE = "barrier_polygons.shp";
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42 public static final String WSPLGEN_USER_SHAPE = "user-rgd.shp";
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43
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44 public static final String WSPLGEN_LAYER_TEMPLATE = "wsplgen_layer.vm";
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45 public static final String SHP_LAYER_TEMPLATE = "shapefile_layer.vm";
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46 public static final String DB_LAYER_TEMPLATE = "db_layer.vm";
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47 public static final String RIVERAXIS_LAYER_TEMPLATE = "riveraxis-layer.vm";
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48
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49 public static final String MS_WSPLGEN_PREFIX = "wsplgen-";
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50 public static final String MS_BARRIERS_PREFIX = "barriers-";
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51 public static final String MS_LINE_PREFIX = "lines-";
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52 public static final String MS_POLYGONS_PREFIX = "polygons-";
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53 public static final String MS_LAYER_PREFIX = "ms_layer-";
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54 public static final String MS_USERSHAPE_PREFIX = "user-";
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55
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56 private static Logger logger = Logger.getLogger(MapfileGenerator.class);
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57
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58 private File shapefileDirectory;
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59
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60 private VelocityEngine velocityEngine;
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61
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62
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63 protected MapfileGenerator() {
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64 }
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65
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66
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67 /**
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68 * Method to check the existance of a template file.
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69 *
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70 * @param templateID The name of a template.
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71 * @return true, of the template exists - otherwise false.
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72 */
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73 public boolean templateExists(String templateID){
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74 Template template = getTemplateByName(templateID);
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75 return template != null;
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76 }
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77
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78
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79 public abstract void generate() throws Exception;
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80
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81
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82 /**
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83 * Returns the VelocityEngine used for the template mechanism.
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84 *
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85 * @return the velocity engine.
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86 */
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87 protected VelocityEngine getVelocityEngine() {
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88 if (velocityEngine == null) {
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89 velocityEngine = new VelocityEngine();
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90 try {
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91 setupVelocity(velocityEngine);
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92 }
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93 catch (Exception e) {
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94 logger.error(e, e);
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95 return null;
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96 }
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97 }
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98 return velocityEngine;
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99 }
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102 /**
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103 * Initialize velocity.
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104 *
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105 * @param engine Velocity engine.
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106 * @throws Exception if an error occured while initializing velocity.
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107 */
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108 protected void setupVelocity(VelocityEngine engine)
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109 throws Exception
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110 {
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111 engine.setProperty(
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112 "input.encoding",
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113 "UTF-8");
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114
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115 engine.setProperty(
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116 RuntimeConstants.RUNTIME_LOG,
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117 getVelocityLogfile());
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118
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119 engine.setProperty(
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120 "resource.loader",
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121 "file");
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122
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123 engine.setProperty(
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124 "file.resource.loader.path",
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125 getMapserverTemplatePath());
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126
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127 engine.init();
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128 }
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129
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130 protected abstract String getVelocityLogfile();
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131
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132 protected abstract String getMapserverTemplatePath();
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133
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134 public abstract String getMapserverUrl();
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135
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136 protected VelocityContext getVelocityContext() {
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137 VelocityContext context = new VelocityContext();
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138
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139 try {
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140 context.put("MAPSERVERURL",
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141 getMapserverUrl());
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142 context.put("SHAPEFILEPATH",
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143 getShapefileBaseDir().getCanonicalPath());
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144 context.put("CONFIGDIR",
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145 Config.getConfigDirectory().getCanonicalPath());
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146 }
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147 catch (FileNotFoundException fnfe) {
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148 // this is bad
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149 logger.warn(fnfe, fnfe);
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150 }
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151 catch (IOException ioe) {
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152 // this is also bad
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153 logger.warn(ioe, ioe);
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154 }
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155
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156 return context;
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157 }
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158
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159
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160 /**
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161 * Returns a template specified by <i>model</i>.
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162 *
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163 * @param model The name of the template.
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164 * @return a template.
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165 */
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166 public Template getTemplateByName(String model) {
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167 if (model.indexOf(".vm") < 0) {
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168 model = model.concat(".vm");
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169 }
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170
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171 try {
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172 VelocityEngine engine = getVelocityEngine();
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173 if (engine == null) {
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174 logger.error("Error while fetching VelocityEngine.");
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175 return null;
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176 }
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177
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178 return engine.getTemplate(model);
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179 }
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180 catch (Exception e) {
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181 logger.warn(e, e);
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182 }
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183
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184 return null;
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185 }
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186
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187
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188 /**
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189 * Returns the mapfile template.
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190 *
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191 * @return the mapfile template.
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192 * @throws Exception if an error occured while reading the configuration.
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193 */
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194 protected Template getMapfileTemplateObj()
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195 throws Exception
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196 {
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197 String mapfileName = getMapfileTemplate();
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198 return getTemplateByName(mapfileName);
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199 }
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200
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201 protected abstract String getMapfilePath();
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202
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203 protected abstract String getMapfileTemplate();
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204
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205
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206 /**
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207 * Returns the base directory storing the shapefiles.
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208 *
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209 * @return the shapefile base directory.
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210 *
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211 * @throws FileNotFoundException if no shapefile path is found or
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212 * configured.
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213 */
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214 public File getShapefileBaseDir()
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215 throws FileNotFoundException, IOException
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216 {
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217 if (shapefileDirectory == null) {
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218 String path = RiverUtils.getXPathString(
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219 RiverUtils.XPATH_FLOODMAP_SHAPEFILE_DIR);
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220
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221 if (path != null) {
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222 shapefileDirectory = new File(path);
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223 }
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224
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225 if (shapefileDirectory == null) {
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226 throw new FileNotFoundException("No shapefile directory given");
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227 }
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228
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229 if (!shapefileDirectory.exists()) {
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230 shapefileDirectory.mkdirs();
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231 }
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232 }
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233
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234 return shapefileDirectory;
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235 }
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236
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237
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238 protected File[] getUserDirs()
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239 throws FileNotFoundException, IOException
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240 {
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241 File baseDir = getShapefileBaseDir();
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242 File[] artifactDirs = baseDir.listFiles();
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243
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244 // TODO ONLY RETURN DIRECTORIES OF THE SPECIFIED USER
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245
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246 return artifactDirs;
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247 }
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248
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249
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250
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251 protected List<String> parseLayers(File[] dirs) {
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252 List<String> layers = new ArrayList<String>();
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253
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254 for (File dir: dirs) {
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255 File[] layerFiles = dir.listFiles(new FilenameFilter() {
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256 @Override
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257 public boolean accept(File directory, String name) {
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258 return name.startsWith(MS_LAYER_PREFIX);
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259 }
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260 });
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261
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262 for (File layer: layerFiles) {
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263 try {
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264 layers.add(layer.getCanonicalPath());
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265 }
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266 catch (IOException ioe) {
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267 logger.warn(ioe, ioe);
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268 }
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269 }
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270 }
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271
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272 return layers;
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273 }
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274
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275
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276
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277
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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278 /**
1781
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279 * Creates a layer snippet which might be included in the mapfile.
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280 *
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281 * @param layerinfo A LayerInfo object that contains all necessary
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282 * information to build a Mapserver LAYER section.
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283 * @param dir The base dir for the LAYER snippet.
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284 * @param filename The name of the file that is written.
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285 * @param tpl The Velocity template which is used to create the LAYER
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286 * section.
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287 */
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288 public void writeLayer(
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289 LayerInfo layerInfo,
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290 File layerFile,
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291 Template tpl
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292 )
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293 throws FileNotFoundException
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294 {
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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295 if (logger.isDebugEnabled()) {
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296 logger.debug("Write layer for:");
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297 logger.debug(" directory/file: " + layerFile.getName());
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298 }
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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299
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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300 Writer writer = null;
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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301
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
302 try {
4656
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diff changeset
303 writer = new FileWriter(layerFile);
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304
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diff changeset
305 VelocityContext context = getVelocityContext();
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diff changeset
306 context.put("LAYER", layerInfo);
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0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
307
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
308 tpl.merge(context, writer);
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
309 }
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
310 catch (FileNotFoundException fnfe) {
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
311 logger.error(fnfe, fnfe);
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312 }
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
313 catch (IOException ioe) {
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
314 logger.error(ioe, ioe);
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315 }
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
316 catch (Exception e) {
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
317 logger.error(e, e);
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
318 }
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
319 finally {
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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parents: 1710
diff changeset
320 try {
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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parents: 1710
diff changeset
321 if (writer != null) {
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
322 writer.close();
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
323 }
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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parents: 1710
diff changeset
324 }
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
325 catch (IOException ioe) {
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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parents: 1710
diff changeset
326 logger.debug(ioe, ioe);
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
327 }
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1710
diff changeset
328 }
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
329 }
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
330
0156105222c9 Improved the MapfileGenerator. It offers methods to create barrier and wsplgen layer files for mapserver.
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diff changeset
331
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diff changeset
332 /**
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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parents:
diff changeset
333 * Creates a mapfile with the layer information stored in <i>layers</i>.
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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diff changeset
334 *
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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parents:
diff changeset
335 * @param layers Layer information.
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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parents:
diff changeset
336 */
5309
b55975761708 Changed visiblitiy of some methods. TODO: A lot of refactoring.
Raimund Renkert <rrenkert@intevation.de>
parents: 4703
diff changeset
337 public void writeMapfile(List<String> layers) {
1129
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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diff changeset
338 String tmpMapName = "mapfile" + new Date().getTime();
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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parents:
diff changeset
339
4656
442fbb290fa8 Introduce river mapfile generation (WARNING: Changes in config xml files required!).
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diff changeset
340 File mapfile = new File(getMapfilePath());
1129
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341
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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parents:
diff changeset
342 File tmp = null;
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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diff changeset
343 Writer writer = null;
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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parents:
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344
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345 try {
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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346 tmp = new File(mapfile.getParent(), tmpMapName);
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347 tmp.createNewFile();
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348
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349 writer = new FileWriter(tmp);
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350
1792
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.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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351 VelocityContext context = getVelocityContext();
1781
ef2300b450bf Modified the process to create mapfiles.
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352 context.put("LAYERS", layers);
1129
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353
4656
442fbb290fa8 Introduce river mapfile generation (WARNING: Changes in config xml files required!).
Christian Lins <christian.lins@intevation.de>
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354 Template mapTemplate = getMapfileTemplateObj();
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355 if (mapTemplate == null) {
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356 logger.warn("No mapfile template found.");
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357 return;
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358 }
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359
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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360 mapTemplate.merge(context, writer);
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361
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362 // we need to create a temporary mapfile first und rename it into
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363 // real mapfile because we don't run into race conditions on this
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364 // way. (iw)
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365 tmp.renameTo(mapfile);
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366 }
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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367 catch (FileNotFoundException fnfe) {
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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368 logger.error(fnfe, fnfe);
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369 }
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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370 catch (IOException ioe) {
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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371 logger.error(ioe, ioe);
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372 }
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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373 catch (Exception e) {
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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374 logger.error(e, e);
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375 }
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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376 finally {
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377 try {
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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378 if (writer != null) {
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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379 writer.close();
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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380 }
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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381
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382 if (tmp.exists()) {
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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383 tmp.delete();
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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384 }
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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385 }
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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386 catch (IOException ioe) {
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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387 logger.debug(ioe, ioe);
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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388 }
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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389 }
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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390 }
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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391 }
da3c3e286c88 Introduced a MapfileGenerator that creates Mapserver specific mapfiles based on WSPLGEN results read from filesystem.
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392 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org