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annotate flys-backend/src/main/java/de/intevation/flys/importer/parsers/W80CSVParser.java @ 5808:c69ce591e3ea

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Initial version of W80CSVParser (stripped W80Parser).
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Wed, 24 Apr 2013 12:03:54 +0200
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rev   line source
5808
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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1 package de.intevation.flys.importer.parsers;
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2
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3 import de.intevation.artifacts.common.utils.FileTools;
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4
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5 import de.intevation.flys.importer.XY;
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6
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7 import de.intevation.flys.importer.parsers.tim.Coordinate;
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8
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9 import de.intevation.flys.utils.DateGuesser;
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10 import de.intevation.flys.utils.EpsilonComparator;
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11
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12 import java.io.File;
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13 import java.io.IOException;
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14
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15 import java.util.ArrayList;
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16 import java.util.Calendar;
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17 import java.util.Date;
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18 import java.util.List;
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19 import java.util.Map;
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20 import java.util.TreeMap;
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21
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22 import org.apache.log4j.Logger;
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23
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24
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25 /**
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26 * To create cross-sections, generate: Map<double,list<xy>> from files
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27 * in w80/csv format.
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28 */
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29 public class W80CSVParser extends LineParser implements CrossSectionParser
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30 {
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31 /** Private logger. */
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32 private static Logger logger = Logger.getLogger(W80CSVParser.class);
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33
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34
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35 /** The current line to which add points. */
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36 private List<XY> currentLine;
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37
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38
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39 /** Data collected so far, last element will be currentLine. */
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40 protected Map<Double, List<XY>> data;
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41
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42
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43 /** Anchor to project to. */
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44 private static class Anchor extends Coordinate {
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45
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46 private static final double EPSILON = 1e-5;
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47
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48 private double station;
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49
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50 public Anchor(double x, double y, double z, double station) {
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51 super(x, y, z);
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52 this.station = station;
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53 }
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54
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55 public boolean sameStation(double station) {
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56 return Math.abs(this.station - station) < EPSILON;
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57 }
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58 }
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59
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60
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61 /** Reference point for simple projection. */
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62 private Anchor anchor;
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63
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64
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65 /**
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66 * Reference point for distance calculations, introduced to
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67 * deal with bends in the lines.
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68 * Array has two entrys: first is GK-Right, second GK-High.
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69 */
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70 private double[] lastPointGK;
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71
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72
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73 /** Measurement date of anchor as listed in w80 file. */
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74 private Date anchorDate;
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75
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76
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77 private double distanceToLastPoint(double gkr, double gkh) {
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78 double dx = gkr - lastPointGK[0];
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79 double dy = gkh - lastPointGK[1];
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80 double d = dx*dx + dy*dy;
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81
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82 return Math.sqrt(d);
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83 }
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84
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85
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86 /** Trivial constructor. */
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87 public W80CSVParser() {
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88 data = new TreeMap<Double, List<XY>>(EpsilonComparator.CMP);
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89 }
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90
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91
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92 /**
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93 * Get the description of the cross section parsed -
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94 * directory name of current file.
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95 */
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96 @Override
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97 public String getDescription() {
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98 return getInputFile().getParentFile().getName();
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99 }
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100
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101
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102 /** Get the year of this cross sections measurement. */
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103 @Override
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104 public Integer getYear() {
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105 if (anchorDate == null) {
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106 return null;
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107 }
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108 Calendar dateCalendar = Calendar.getInstance();
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109 dateCalendar.setTime(anchorDate);
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110 return dateCalendar.get(Calendar.YEAR);
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111 }
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112
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113
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114 /**
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115 * Return the data parsed.
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116 * @return map of stations (km) to list of points.
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117 */
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118 @Override
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119 public Map<Double, List<XY>> getData() {
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120 return data;
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121 }
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122
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123
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124 /** Recursively descend root, ask the callback for every file
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125 * found and parse it if callback acks. When done, notify callback. */
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126 public void parseW80CSVs(File root, final Callback callback) {
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127
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128 FileTools.walkTree(root, new FileTools.FileVisitor() {
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129 @Override
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130 public boolean visit(File file) {
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131 if (file.isFile() && file.canRead()
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132 && file.getName().toLowerCase().endsWith(".csv")
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133 && (callback == null || callback.accept(file))) {
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134 reset();
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
135 try {
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parents:
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136 parse(file);
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137 logger.info("parsing done");
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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138 if (callback != null) {
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139 callback.parsed(W80CSVParser.this);
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140 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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141 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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142 catch (IOException ioe) {
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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143 logger.error("IOException while parsing file");
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144 return false;
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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145 }
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146 }
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147 return true;
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148 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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149 });
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150 }
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151
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152
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153 /** Called before consuming first line of file. */
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154 public void reset() {
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
155 data.clear();
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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156 currentLine = new ArrayList<XY>();
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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157 anchor = null;
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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158 anchorDate = null;
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parents:
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159 lastPointGK = new double[] {0d,0d};
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160 }
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parents:
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161
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parents:
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162
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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163 /**
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parents:
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164 * Get the Index of the last cross-section lines point.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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165 * @return last points index, -1 if not available.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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166 */
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parents:
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167 private int getLastPointIdx() {
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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168 if (currentLine == null || currentLine.isEmpty()) {
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parents:
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169 return -1;
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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170 }
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171 XY lastPoint = this.currentLine.get(currentLine.size()-1);
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172 return lastPoint.getIndex();
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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173 }
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parents:
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174
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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175
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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176 private double getLastPointX() {
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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177 if (currentLine == null || currentLine.isEmpty()) {
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178 return 0d;
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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179 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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diff changeset
180 XY lastPoint = this.currentLine.get(currentLine.size()-1);
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parents:
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181 return lastPoint.getX();
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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182 }
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parents:
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183
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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184
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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185 /**
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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186 * 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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187 * @param y The y coordinate of new point.
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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188 * @param z The z coordinate of new point.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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189 * @param idx Ignored, the parameter of new point.
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parents:
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190 * @return true if point could been added, false otherwise (e.g. not
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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191 * parsable y or z values.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
192 */
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
193 private boolean addPoint(double gkr, double gkh, double height, String idx) {
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parents:
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194 // Calculate distance between this and lst point (add distances).
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
195 double d = distanceToLastPoint(gkr, gkh);
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
196 double totalX = getLastPointX() + d;
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
197
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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198 // We ignore idx, and increment instead.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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199 int index;
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
200 int lastPointIdx = getLastPointIdx();
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parents:
diff changeset
201 if (lastPointIdx <= 0) {
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
202 index = 1;
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
203 } else {
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
204 index = lastPointIdx + 1;
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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205 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
206
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
207 this.lastPointGK[0] = gkr;
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
208 this.lastPointGK[1] = gkh;
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
209 currentLine.add(new XY(totalX, height/1000d, index));
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
210 return true;
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
211 }
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
212
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
213 // As per documentation:
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
214 // 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
215
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
216
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
217 /**
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
218 * 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
219 * @param lineNum Number of line (starting with 1).
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 @Override
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
222 protected void handleLine(int lineNum, String line) {
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
223 // First two lines are 'comment'-like.
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
224 if (lineNum == 1 || lineNum == 2) {
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
225 return;
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
226 }
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
227 // 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
228 // 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
229 // because later distances are calculated which cannot be
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
230 // negative.
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
231 String[] fields = line.split(";");
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
232 String station = fields[2];
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
233 String shore = fields[3];
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
234 // 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
235 // 1 = left, 2 = right. none = middle
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
236 String pointIndex = line.substring(16,21);
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
237 // For GK, first seven digits are of interest.
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
238 String gkRight = fields[7];
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
239 String gkHigh = fields[8];
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
240 String date = fields[10];
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
241 String height = fields[18];
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
242 String dateH = line.substring(54,60);
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
243 String dateDec = line.substring(64,70);
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
244
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
245 double stationKm = Double.parseDouble(station) / 1000d;
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
246 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
247 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
248 double heightM = Double.parseDouble(height.replace(",","."));
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
249
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
250 // New (or first) line.
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
251 if (anchor == null || !anchor.sameStation(stationKm)) {
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
252 anchor = new Anchor(gkRightKm, gkHighKm, heightM, stationKm);
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
253 lastPointGK[0] = gkRightKm;
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
254 lastPointGK[1] = gkHighKm;
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
255 currentLine = new ArrayList<XY>();
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
256 data.put(stationKm, currentLine);
c69ce591e3ea Initial version of W80CSVParser (stripped W80Parser).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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257 currentLine.add(new XY(0d, heightM, 0));
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258 try {
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259 anchorDate = DateGuesser.guessDate(date);
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260 }
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261 catch (IllegalArgumentException iae) {
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262 logger.warn("W80CSV: Invalid date '" + date + "'.");
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263 }
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264 }
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265 else {
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266 addPoint(gkRightKm, gkHighKm, heightM, pointIndex);
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267 }
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268 }
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269
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270
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271 /** Called when file is fully consumed. */
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272 @Override
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273 protected void finish() {
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274 logger.info("Parsed " + data.size() + " lines");
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275 }
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276
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277
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278 /** Parses files given as arguments. */
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279 public static void main(String [] args) {
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280
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281 W80CSVParser parser = new W80CSVParser();
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282
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283 logger.warn("Start parsing files.");
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284 for (String arg: args) {
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285 logger.warn("Parsing a file.");
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286 parser.parseW80CSVs(new File(arg), null);
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287 }
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288 logger.error("Finished parsing files.");
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289 }
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290 }
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291 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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