Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/utils/FLYSUtils.java @ 1747:d2a17e990c70

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Improved the Themes: we now support special themes for facets which need to match a given pattern string. flys-artifacts/trunk@3047 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 20 Oct 2011 13:45:45 +0000
parents 8d08f6641372
children a8aa343799a2
rev   line source
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f465785ed1ae Refactored the code to fetch the km range/locations into a utility class.
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parents:
diff changeset
1 package de.intevation.flys.utils;
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2
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5f53b443d67c Implement getArtifact(uuid,context) in FLYSUtils.
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3 import org.apache.log4j.Logger;
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4
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5 import java.text.NumberFormat;
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6 import java.util.HashMap;
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7 import java.util.List;
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8 import java.util.Map;
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9
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10 import javax.xml.xpath.XPathConstants;
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11
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12 import org.w3c.dom.Document;
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13
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14 import gnu.trove.TDoubleArrayList;
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15
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16 import de.intevation.artifacts.Artifact;
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17 import de.intevation.artifacts.CallContext;
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18
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19 import de.intevation.artifacts.common.utils.Config;
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20 import de.intevation.artifacts.common.utils.XMLUtils;
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21
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22 import de.intevation.flys.artifacts.FLYSArtifact;
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23 import de.intevation.flys.artifacts.WINFOArtifact;
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24 import de.intevation.flys.artifacts.model.RiverFactory;
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25 import de.intevation.flys.model.Gauge;
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26 import de.intevation.flys.model.MainValue;
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27 import de.intevation.flys.model.River;
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28
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29 public class FLYSUtils {
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31 /** The logger that is used in this utility. */
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32 private static Logger logger = Logger.getLogger(FLYSUtils.class);
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33
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34 public static enum KM_MODE { RANGE, LOCATIONS, NONE };
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35
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36 public static final String XPATH_RIVER_PROJECTION =
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37 "/artifact-database/floodmap/river[@name=$name]/srid/@value";
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38
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39 public static final String XPATH_SHAPEFILE_DIR =
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40 "/artifact-database/floodmap/shapefile-path/@value";
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41
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42 public static final String XPATH_VELOCITY_LOGFILE =
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43 "/artifact-database/floodmap/velocity/logfile/@path";
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44
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45 public static final String XPATH_MAPSERVER_URL =
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46 "/artifact-database/floodmap/mapserver/server/@path";
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47
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48 public static final String XPATH_MAPFILE_PATH =
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49 "/artifact-database/floodmap/mapserver/mapfile/@path";
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51 public static final String XPATH_MAPFILE_TEMPLATE =
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52 "/artifact-database/floodmap/mapserver/map-template/@path";
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53
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54 public static final String XPATH_MAPSERVER_TEMPLATE_PATH =
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55 "/artifact-database/floodmap/mapserver/templates/@path";
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56
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57
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58 private FLYSUtils() {
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59 }
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60
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61
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62 public static FLYSArtifact getArtifact(String uuid, CallContext context) {
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63 try {
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64 Artifact artifact = context.getDatabase().getRawArtifact(uuid);
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65
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66 if (artifact == null) {
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67 logger.error("Artifact '" + uuid + "' does not exist.");
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68 return null;
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69 }
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70
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71 if (!(artifact instanceof FLYSArtifact)) {
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72 logger.error("Artifact '" +uuid+ "' is no valid FLYSArtifact.");
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73 return null;
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74 }
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75
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76 return (FLYSArtifact) artifact;
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77 }
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78 // TODO: catch more selective
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79 catch (Exception e) {
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80 logger.error("Cannot get FLYSArtifact " + uuid + " from database (" + e.getMessage() + ").");
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81 return null;
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82 }
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83 }
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84
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85
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86 /**
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87 * Convinience function to retrieve an XPath as string with replaced config
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88 * directory.
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89 *
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90 * @param xpath The XPath expression.
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91 *
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92 * @return a string with replaced config directory.
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93 */
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94 public static String getXPathString(String xpath) {
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95 String tmp = Config.getStringXPath(xpath);
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96 tmp = Config.replaceConfigDir(tmp);
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97
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98 return tmp;
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99 }
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100
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101
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102 public static KM_MODE getKmRangeMode(FLYSArtifact flys) {
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103 String mode = flys.getDataAsString("ld_mode");
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104
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105 if (mode == null || mode.length() == 0) {
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106 return KM_MODE.NONE;
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107 }
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108 else if (mode.equals("distance")) {
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109 return KM_MODE.RANGE;
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110 }
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111 else if (mode.equals("locations")) {
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112 return KM_MODE.LOCATIONS;
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113 }
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114 else {
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115 return KM_MODE.NONE;
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116 }
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117 }
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118
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119
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120 public static double[] getKmRange(FLYSArtifact flys) {
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121 switch (getKmRangeMode(flys)) {
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122 case RANGE: {
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123 return getKmFromTo(flys);
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124 }
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125
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126 case LOCATIONS: {
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127 double[] locs = getLocations(flys);
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128 return new double[] { locs[0], locs[locs.length-1] };
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129 }
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130
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131 case NONE: {
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132 double[] locs = getLocations(flys);
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133 if (locs != null) {
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134 return new double[] { locs[0], locs[locs.length-1] };
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135 }
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136 else {
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137 return getKmFromTo(flys);
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138 }
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139 }
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140 }
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141
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142 return new double[] { Double.NaN, Double.NaN };
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143 }
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144
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145
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146 public static double[] getKmFromTo(FLYSArtifact flys) {
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147 String strFrom = flys.getDataAsString("ld_from");
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148 String strTo = flys.getDataAsString("ld_to");
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149
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150 if (strFrom == null || strTo == null) {
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151 return null;
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152 }
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153
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154 try {
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155 return new double[] {
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156 Double.parseDouble(strFrom),
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157 Double.parseDouble(strTo) };
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158 }
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159 catch (NumberFormatException nfe) {
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160 return null;
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161 }
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162 }
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163
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164
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165 public static double[] getLocations(FLYSArtifact flys) {
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166 String locationStr = flys.getDataAsString("ld_locations");
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167
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168 if (locationStr == null || locationStr.length() == 0) {
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169 return null;
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170 }
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171
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172 String[] tmp = locationStr.split(" ");
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173 TDoubleArrayList locations = new TDoubleArrayList();
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174
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175 for (String l: tmp) {
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176 try {
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177 locations.add(Double.parseDouble(l));
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178 }
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179 catch (NumberFormatException nfe) {
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180 }
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181 }
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182
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183 locations.sort();
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184
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185 return locations.toNativeArray();
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186 }
1099
af73f196eccc Refactored to use new FLYSUtils, moved getRiver-functionality inside.
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187
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188
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189 /**
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190 * Returns the selected River object based on the 'river' data that might
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191 * have been inserted by the user.
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192 *
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193 * @return the selected River or null if no river has been chosen yet.
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194 */
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195 public static River getRiver(FLYSArtifact flys) {
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196 String sRiver = flys.getDataAsString("river");
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197
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198 return (sRiver != null)
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199 ? RiverFactory.getRiver(sRiver)
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200 : null;
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201 }
1105
adb52a2005e7 Moved code to extract the river srid defined in the global configuration into FLYSUtils.
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202
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203
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204 /**
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205 * Extracts the SRID defined in the global configuration for the river
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206 * specified in <i>artifact</i>.
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207 *
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208 * @param artifact The FLYSArtifact that stores the name of the river.
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209 *
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210 * @return the SRID as string (e.g. "31466").
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211 */
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diff changeset
212 public static String getRiverSrid(FLYSArtifact artifact) {
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213 String river = artifact.getDataAsString("river");
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214
adb52a2005e7 Moved code to extract the river srid defined in the global configuration into FLYSUtils.
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diff changeset
215 if (river == null || river.length() == 0) {
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diff changeset
216 return null;
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parents: 1099
diff changeset
217 }
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diff changeset
218
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diff changeset
219 Map<String, String> variables = new HashMap<String, String>(1);
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220 variables.put("name", river);
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diff changeset
221
adb52a2005e7 Moved code to extract the river srid defined in the global configuration into FLYSUtils.
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diff changeset
222 Document cfg = Config.getConfig();
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diff changeset
223
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diff changeset
224 return (String) XMLUtils.xpath(
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diff changeset
225 cfg,
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diff changeset
226 XPATH_RIVER_PROJECTION,
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diff changeset
227 XPathConstants.STRING,
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diff changeset
228 null,
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diff changeset
229 variables);
adb52a2005e7 Moved code to extract the river srid defined in the global configuration into FLYSUtils.
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diff changeset
230 }
1740
8d08f6641372 Improved the title creation of WSP Q and W facets - named main values are taken into account while title creation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1174
diff changeset
231
8d08f6641372 Improved the title creation of WSP Q and W facets - named main values are taken into account while title creation.
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diff changeset
232
8d08f6641372 Improved the title creation of WSP Q and W facets - named main values are taken into account while title creation.
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diff changeset
233 public static String createWspWTitle(
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parents: 1174
diff changeset
234 WINFOArtifact winfo,
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235 CallContext cc,
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236 String name
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237 ) {
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238 String[] parts = name.split("=");
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239
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240 NumberFormat nf = Formatter.getWaterlevelW(cc);
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241
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242 String namedMainValue = null;
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243
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244 boolean isQ = winfo.isQ();
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245 boolean isFree = winfo.isFreeQ();
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246
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247 double v;
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248
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249 try {
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250 v = Double.valueOf(parts[1]);
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251
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252 namedMainValue = getNamedMainValue(winfo.getGauge(), v);
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253 }
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254 catch (NumberFormatException nfe) {
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255 logger.warn("Cannot parse Double of: '" + parts[1] + "'");
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256 return name;
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257 }
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258
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259 String prefix = null;
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260
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261 if (isQ && !isFree && namedMainValue != null) {
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262 return "W (" + namedMainValue + ")";
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263 }
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264
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265 if (isQ) {
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266 prefix = "Q=";
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267 }
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268
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269 return prefix == null
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270 ? "W(" + nf.format(v) + ")"
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271 : "W(" + prefix + nf.format(v) + ")";
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272 }
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273
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274
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275 public static String createWspQTitle(
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276 WINFOArtifact winfo,
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277 CallContext cc,
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278 String name
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279 ) {
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280 String[] parts = name.split("=");
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281
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282 NumberFormat nf = Formatter.getWaterlevelQ(cc);
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283
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284 String namedMainValue = null;
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285
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286 boolean isQ = winfo.isQ();
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287 boolean isFree = winfo.isFreeQ();
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288
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289 double v;
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290
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291 try {
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292 v = Double.valueOf(parts[1]);
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293
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294 namedMainValue = getNamedMainValue(winfo.getGauge(), v);
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295 }
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296 catch (NumberFormatException nfe) {
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297 logger.warn("Cannot parse Double of: '" + parts[1] + "'");
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298 return name;
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299 }
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300
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301 String prefix = null;
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302
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diff changeset
303 if (isQ && !isFree && namedMainValue != null) {
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304 return namedMainValue;
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305 }
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306
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diff changeset
307 if (!isQ) {
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diff changeset
308 prefix = "W=";
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309 }
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310
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diff changeset
311 return prefix == null
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312 ? "Q(" + nf.format(v) + ")"
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313 : "Q(" + prefix + nf.format(v) + ")";
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diff changeset
314 }
8d08f6641372 Improved the title creation of WSP Q and W facets - named main values are taken into account while title creation.
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diff changeset
315
8d08f6641372 Improved the title creation of WSP Q and W facets - named main values are taken into account while title creation.
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diff changeset
316
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diff changeset
317 public static String getNamedMainValue(Gauge gauge, double value) {
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318 List<MainValue> mainValues = gauge.getMainValues();
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diff changeset
319 logger.debug("Search named main value for: " + value);
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diff changeset
320
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diff changeset
321 for (MainValue mv: mainValues) {
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diff changeset
322 if (mv.getValue().doubleValue() == value) {
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diff changeset
323 logger.debug("Found named main value: " + mv.getMainValue().getName());
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diff changeset
324 return mv.getMainValue().getName();
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diff changeset
325 }
8d08f6641372 Improved the title creation of WSP Q and W facets - named main values are taken into account while title creation.
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diff changeset
326 }
8d08f6641372 Improved the title creation of WSP Q and W facets - named main values are taken into account while title creation.
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parents: 1174
diff changeset
327
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diff changeset
328 logger.debug("Did not find a named main value for: " + value);
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diff changeset
329 return null;
8d08f6641372 Improved the title creation of WSP Q and W facets - named main values are taken into account while title creation.
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diff changeset
330 }
1095
f465785ed1ae Refactored the code to fetch the km range/locations into a utility class.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
331 }
1105
adb52a2005e7 Moved code to extract the river srid defined in the global configuration into FLYSUtils.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1099
diff changeset
332 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org