Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/importer/parsers/W80CSVParser.java @ 5844:4dd33b86dc61

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Added header to river backend.
author Sascha L. Teichmann <teichmann@intevation.de>
date Fri, 26 Apr 2013 08:25:41 +0200
parents 5aa05a7a34b7
children 8ed9b1edace6
rev   line source
5844
4dd33b86dc61 Added header to river backend.
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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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.importer.parsers;
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10
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11 import org.dive4elements.artifacts.common.utils.FileTools;
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12
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13 import org.dive4elements.river.importer.XY;
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14
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15 import org.dive4elements.river.importer.parsers.tim.Coordinate;
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16
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17 import org.dive4elements.river.utils.DateGuesser;
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18 import org.dive4elements.river.utils.EpsilonComparator;
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19
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20 import java.io.File;
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21 import java.io.IOException;
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22
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23 import java.util.ArrayList;
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24 import java.util.Calendar;
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25 import java.util.Date;
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26 import java.util.List;
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27 import java.util.Map;
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28 import java.util.TreeMap;
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29
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30 import org.apache.log4j.Logger;
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31
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32
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33 /**
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34 * To create cross-sections, generate: Map<double,list<xy>> from files
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35 * in w80/csv format.
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36 */
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37 public class W80CSVParser extends LineParser implements CrossSectionParser
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38 {
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39 /** Private logger. */
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40 private static Logger logger = Logger.getLogger(W80CSVParser.class);
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41
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42
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43 /** The current line to which add points. */
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44 private List<XY> currentLine;
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45
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46
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47 /** Data collected so far, last element will be currentLine. */
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48 protected Map<Double, List<XY>> data;
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49
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50
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51 /** Anchor to project to. */
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52 private static class Anchor extends Coordinate {
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53
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54 private static final double EPSILON = 1e-5;
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55
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56 private double station;
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57
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58 public Anchor(double x, double y, double z, double station) {
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59 super(x, y, z);
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60 this.station = station;
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61 }
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62
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63 public boolean sameStation(double station) {
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64 return Math.abs(this.station - station) < EPSILON;
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65 }
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66 }
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67
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68
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69 /** Reference point for simple projection. */
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70 private Anchor anchor;
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71
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72
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73 /**
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74 * Reference point for distance calculations, introduced to
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75 * deal with bends in the lines.
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76 * Array has two entrys: first is GK-Right, second GK-High.
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77 */
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78 private double[] lastPointGK;
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79
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80
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81 /** Measurement date of anchor as listed in w80 file. */
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82 private Date anchorDate;
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83
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84
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85 private double distanceToLastPoint(double gkr, double gkh) {
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86 double dx = gkr - lastPointGK[0];
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87 double dy = gkh - lastPointGK[1];
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88 double d = dx*dx + dy*dy;
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89
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90 return Math.sqrt(d);
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91 }
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92
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93
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94 /** Trivial constructor. */
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95 public W80CSVParser() {
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96 data = new TreeMap<Double, List<XY>>(EpsilonComparator.CMP);
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97 }
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98
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99
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100 /**
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101 * Get the description of the cross section parsed -
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102 * directory name of current file.
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103 */
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104 @Override
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105 public String getDescription() {
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106 return getInputFile().getParentFile().getName();
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107 }
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108
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109
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110 /** Get the year of this cross sections measurement. */
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111 @Override
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112 public Integer getYear() {
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113 if (anchorDate == null) {
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114 return null;
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115 }
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116 Calendar dateCalendar = Calendar.getInstance();
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117 dateCalendar.setTime(anchorDate);
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118 return dateCalendar.get(Calendar.YEAR);
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119 }
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120
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121
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122 /**
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123 * Return the data parsed.
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124 * @return map of stations (km) to list of points.
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125 */
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126 @Override
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127 public Map<Double, List<XY>> getData() {
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128 return data;
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129 }
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130
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131
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132 /** Recursively descend root, ask the callback for every file
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133 * found and parse it if callback acks. When done, notify callback. */
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134 public void parseW80CSVs(File root, final Callback callback) {
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135
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136 FileTools.walkTree(root, new FileTools.FileVisitor() {
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137 @Override
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138 public boolean visit(File file) {
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139 if (file.isFile() && file.canRead()
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140 && file.getName().toLowerCase().endsWith(".csv")
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141 && (callback == null || callback.accept(file))) {
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142 reset();
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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143 try {
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144 parse(file);
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145 logger.info("parsing done");
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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146 if (callback != null) {
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147 callback.parsed(W80CSVParser.this);
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148 }
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149 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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150 catch (IOException ioe) {
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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151 logger.error("IOException while parsing file");
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152 return false;
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153 }
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154 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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155 return true;
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156 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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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 /** Called before consuming first line of file. */
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162 public void reset() {
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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163 data.clear();
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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164 currentLine = new ArrayList<XY>();
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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165 anchor = null;
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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166 anchorDate = null;
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parents:
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167 lastPointGK = new double[] {0d,0d};
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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168 }
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parents:
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169
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parents:
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170
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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171 /**
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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172 * Get the Index of the last cross-section lines point.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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173 * @return last points index, -1 if not available.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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174 */
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175 private int getLastPointIdx() {
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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176 if (currentLine == null || currentLine.isEmpty()) {
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177 return -1;
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178 }
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179 XY lastPoint = this.currentLine.get(currentLine.size()-1);
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180 return lastPoint.getIndex();
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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181 }
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182
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183
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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184 private double getLastPointX() {
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185 if (currentLine == null || currentLine.isEmpty()) {
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186 return 0d;
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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187 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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188 XY lastPoint = this.currentLine.get(currentLine.size()-1);
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189 return lastPoint.getX();
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190 }
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parents:
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191
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parents:
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192
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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193 /**
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
194 * Add a Point (YZ,Index) to the current cross section line.
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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195 * @param y The y coordinate of new point.
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parents:
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196 * @param z The z coordinate of new point.
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parents:
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197 * @param idx Ignored, the parameter of new point.
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parents:
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198 * @return true if point could been added, false otherwise (e.g. not
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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199 * parsable y or z values.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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200 */
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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201 private boolean addPoint(double gkr, double gkh, double height, String idx) {
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parents:
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202 // Calculate distance between this and lst point (add distances).
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parents:
diff changeset
203 double d = distanceToLastPoint(gkr, gkh);
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parents:
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204 double totalX = getLastPointX() + d;
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parents:
diff changeset
205
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
206 // We ignore idx, and increment instead.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
207 int index;
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
208 int lastPointIdx = getLastPointIdx();
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parents:
diff changeset
209 if (lastPointIdx <= 0) {
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
210 index = 1;
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
211 } else {
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
212 index = lastPointIdx + 1;
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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213 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
214
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
215 this.lastPointGK[0] = gkr;
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
216 this.lastPointGK[1] = gkh;
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
217 currentLine.add(new XY(totalX, height/1000d, index));
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
218 return true;
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
219 }
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
220
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
221 // As per documentation:
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
222 // BW;WPA;ST;UF;PN;LS;BL-LS;Y;X;Z;DL;LZK;SY;SX;SZ;BML;HS;BL-HS;H;DH;HZK;SH;WVA;BMH;BMP;DST;DB;LDS;LKZ;
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
223
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
224
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
225 /**
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
226 * Called for each line. Try to extract info from a w80 line.
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
227 * @param lineNum Number of line (starting with 1).
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
228 */
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
229 @Override
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
230 protected void handleLine(int lineNum, String line) {
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
231 // First two lines are 'comment'-like.
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
232 if (lineNum == 1 || lineNum == 2) {
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
233 return;
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
234 }
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
235 // The 'shore' field shows which side of the river the shore is measured.
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
236 // Therefore, the points have to be added in the correct order (also
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
237 // because later distances are calculated which cannot be
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
238 // negative.
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
239 String[] fields = line.split(";");
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
240 String station = fields[2];
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
241 String shore = fields[3];
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
242 // TODO: There is 'station' and a 'shore'-code behind.
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
243 // 1 = left, 2 = right. none = middle
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
244 String pointIndex = line.substring(16,21);
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
245 // For GK, first seven digits are of interest.
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
246 String gkRight = fields[7];
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
247 String gkHigh = fields[8];
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
248 String date = fields[10];
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
249 String height = fields[18];
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
250 String dateH = line.substring(54,60);
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
251 String dateDec = line.substring(64,70);
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
252
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
253 double stationKm = Double.parseDouble(station) / 1000d;
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
254 double gkRightKm = Double.parseDouble(gkRight.replace(",","."));//.substring(0,7));
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
255 double gkHighKm = Double.parseDouble(gkHigh.replace(",","."));//.substring(0,7));
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
256 double heightM = Double.parseDouble(height.replace(",","."));
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
257
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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258 // New (or first) line.
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259 if (anchor == null || !anchor.sameStation(stationKm)) {
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260 anchor = new Anchor(gkRightKm, gkHighKm, heightM, stationKm);
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261 lastPointGK[0] = gkRightKm;
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262 lastPointGK[1] = gkHighKm;
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263 currentLine = new ArrayList<XY>();
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264 data.put(stationKm, currentLine);
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265 currentLine.add(new XY(0d, heightM, 0));
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266 try {
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267 anchorDate = DateGuesser.guessDate(date);
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268 }
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269 catch (IllegalArgumentException iae) {
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270 logger.warn("W80CSV: Invalid date '" + date + "'.");
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271 }
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272 }
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273 else {
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274 addPoint(gkRightKm, gkHighKm, heightM, pointIndex);
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275 }
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276 }
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277
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278
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279 /** Called when file is fully consumed. */
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280 @Override
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281 protected void finish() {
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282 logger.info("Parsed " + data.size() + " lines");
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283 }
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284
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285
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286 /** Parses files given as arguments. */
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287 public static void main(String [] args) {
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288
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289 W80CSVParser parser = new W80CSVParser();
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290
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291 logger.warn("Start parsing files.");
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292 for (String arg: args) {
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293 logger.warn("Parsing a file.");
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294 parser.parseW80CSVs(new File(arg), null);
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295 }
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296 logger.error("Finished parsing files.");
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297 }
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298 }
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299 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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