Mercurial > dive4elements > river
annotate flys-backend/src/main/java/de/intevation/flys/importer/parsers/tim/TIMParser.java @ 4775:d9f1202cef78
Do the pairing of FLYS and AFT discharge tables by the field 'ABFLUSSTAFEL.BFG_ID' in
AFT and 'discharge_table.bfg_id' in FLYS.
TODO: Create new column in discharge_tabel.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Sat, 05 Jan 2013 14:52:55 +0100 |
parents | 94b39073f0f7 |
children | 9a00be1acaee |
rev | line source |
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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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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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14 import de.intevation.flys.utils.EpsilonComparator; |
4731
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15 |
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16 /** Parser for single .tim files. */ |
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17 // TODO switch to proper logging. |
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18 public class TIMParser |
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19 { |
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20 /** Proper encoding. */ |
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21 public static final String ENCODING = |
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22 System.getProperty("tim.encoding", "ISO-8859-1"); |
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23 |
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24 /** Map of stations (km) to points (xyz). */ |
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25 protected Map<Double, List<Coordinate>> lines; |
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26 |
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27 public TIMParser() { |
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28 lines = new TreeMap<Double, List<Coordinate>>(EpsilonComparator.CMP); |
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29 } |
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30 |
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31 /** Access map of stations (km) to coordinates (xyz). */ |
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32 public Map<Double, List<Coordinate>> getLines() { |
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33 return lines; |
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34 } |
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35 |
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36 /** Get number of lines (data). */ |
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37 public int numLines() { |
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38 return lines.size(); |
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39 } |
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40 |
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41 /** Parse single .tim file. */ |
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42 public void load(String filename) throws IOException { |
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43 BufferedReader reader = |
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44 new BufferedReader( |
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45 new InputStreamReader( |
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46 new FileInputStream(filename), ENCODING)); |
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47 try { |
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48 String row; |
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49 while ((row = reader.readLine()) != null) { |
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50 if (row.length() < 54) { |
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51 System.err.println("row too short"); |
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52 continue; |
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53 } |
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54 double station, x, y, z; |
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55 try { |
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56 station = Double.parseDouble(row.substring( 9, 16))/1000d; |
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57 x = Double.parseDouble(row.substring(20, 30))/1000d; |
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58 y = Double.parseDouble(row.substring(30, 40))/1000d; |
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59 z = Double.parseDouble(row.substring(47, 54))/10000d; |
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60 } catch (NumberFormatException nfe) { |
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61 System.err.println("Invalid row"); |
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62 continue; |
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63 } |
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64 |
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65 Double km = station; |
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66 |
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67 List<Coordinate> line = lines.get(km); |
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68 if (line == null) { |
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69 line = new ArrayList<Coordinate>(); |
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70 lines.put(km, line); |
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71 } |
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72 |
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73 line.add(new Coordinate(x, y, z)); |
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74 } |
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75 // Bring coords in lexicographical order. |
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76 sortCoordinates(); |
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77 } finally { |
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78 reader.close(); |
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79 } |
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80 } |
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81 |
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82 /** Sort coordinates of lines lexicographically. */ |
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83 protected void sortCoordinates() { |
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84 for (List<Coordinate> line: lines.values()) { |
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85 Collections.sort(line, LexiComparator.CMP); |
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86 } |
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87 } |
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88 } |
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89 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |