Mercurial > dive4elements > river
annotate flys-backend/src/main/java/de/intevation/flys/importer/parsers/tim/TIMParser.java @ 5795:202a73ce6704
WST-Parser: Avoid trying to set MIN_RANGE when actually no stations are given
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Tue, 23 Apr 2013 17:30:20 +0200 |
parents | 9c1964fe3995 |
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1 package de.intevation.flys.importer.parsers.tim; |
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2 |
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3 import java.io.BufferedReader; |
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4 import java.io.FileInputStream; |
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5 import java.io.IOException; |
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6 import java.io.InputStreamReader; |
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7 |
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8 import java.util.ArrayList; |
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9 import java.util.Collections; |
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10 import java.util.List; |
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11 import java.util.Map; |
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12 import java.util.TreeMap; |
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13 |
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14 import org.apache.log4j.Logger; |
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15 |
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Moved EpsilonComparator to utils package becaus its not only useful for TIM parsing. Used EpsilonComparator in DA60 and DA66 case. Maybe TODO: Use in PRF, too.
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16 import de.intevation.flys.utils.EpsilonComparator; |
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17 |
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18 /** Parser for single .tim files. */ |
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19 public class TIMParser |
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20 { |
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21 /** Private logger. */ |
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22 private static Logger logger = Logger.getLogger(TIMParser.class); |
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23 |
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24 /** Proper encoding. */ |
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25 public static final String ENCODING = |
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26 System.getProperty("tim.encoding", "ISO-8859-1"); |
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27 |
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28 /** Map of stations (km) to points (xyz). */ |
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29 protected Map<Double, List<Coordinate>> lines; |
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30 |
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31 public TIMParser() { |
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32 lines = new TreeMap<Double, List<Coordinate>>(EpsilonComparator.CMP); |
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33 } |
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34 |
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35 /** Access map of stations (km) to coordinates (xyz). */ |
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36 public Map<Double, List<Coordinate>> getLines() { |
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37 return lines; |
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38 } |
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39 |
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40 /** Get number of lines (data). */ |
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41 public int numLines() { |
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42 return lines.size(); |
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43 } |
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44 |
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45 /** Parse single .tim file. */ |
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46 public void load(String filename) throws IOException { |
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47 BufferedReader reader = |
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48 new BufferedReader( |
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49 new InputStreamReader( |
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50 new FileInputStream(filename), ENCODING)); |
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51 try { |
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52 String row; |
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53 while ((row = reader.readLine()) != null) { |
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54 if (row.length() < 54) { |
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55 logger.warn("row too short"); |
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56 continue; |
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57 } |
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58 double station, x, y, z; |
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59 try { |
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60 station = Double.parseDouble(row.substring( 9, 16))/1000d; |
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61 x = Double.parseDouble(row.substring(20, 30))/1000d; |
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62 y = Double.parseDouble(row.substring(30, 40))/1000d; |
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63 z = Double.parseDouble(row.substring(47, 54))/10000d; |
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64 } catch (NumberFormatException nfe) { |
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65 logger.warn("Invalid row"); |
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66 continue; |
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67 } |
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68 |
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69 Double km = station; |
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70 |
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71 List<Coordinate> line = lines.get(km); |
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72 if (line == null) { |
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73 line = new ArrayList<Coordinate>(); |
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74 lines.put(km, line); |
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75 } |
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76 |
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77 line.add(new Coordinate(x, y, z)); |
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78 } |
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79 // Bring coords in lexicographical order. |
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80 sortCoordinates(); |
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81 } finally { |
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82 reader.close(); |
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83 } |
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84 } |
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85 |
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86 /** Sort coordinates of lines lexicographically. */ |
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87 protected void sortCoordinates() { |
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88 for (List<Coordinate> line: lines.values()) { |
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89 Collections.sort(line, LexiComparator.CMP); |
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90 } |
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91 } |
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92 } |
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93 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |