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annotate flys-backend/src/main/java/org/dive4elements/river/importer/parsers/tim/TIMParser.java @ 5829:18619c1e7c2a

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Repaired internal references.
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 25 Apr 2013 11:54:36 +0200
parents dfb26b03b179
children
rev   line source
5829
18619c1e7c2a Repaired internal references.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5828
diff changeset
1 package org.dive4elements.river.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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16 import org.dive4elements.river.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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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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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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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 :
http://dive4elements.wald.intevation.org