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annotate flys-backend/src/main/java/de/intevation/flys/importer/parsers/tim/TIMParser.java @ 4786:9a00be1acaee

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TIMParser: Switch to log4j instead of System.err .
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Tue, 08 Jan 2013 12:41:48 +0100
parents 94b39073f0f7
children 9c1964fe3995
rev   line source
4731
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Sascha Teichmann <sascha.teichmann@intevation.de>
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1 package de.intevation.flys.importer.parsers.tim;
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2
7d9fcd322c45 Initial version of TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
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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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9a00be1acaee TIMParser: Switch to log4j instead of System.err .
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4735
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14 import org.apache.log4j.Logger;
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15
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94b39073f0f7 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.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 4731
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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 // TODO switch to proper logging.
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20 public class TIMParser
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21 {
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9a00be1acaee TIMParser: Switch to log4j instead of System.err .
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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22 /** Private logger. */
9a00be1acaee TIMParser: Switch to log4j instead of System.err .
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23 private static Logger logger = Logger.getLogger(TIMParser.class);
9a00be1acaee TIMParser: Switch to log4j instead of System.err .
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24
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25 /** Proper encoding. */
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26 public static final String ENCODING =
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27 System.getProperty("tim.encoding", "ISO-8859-1");
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28
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29 /** Map of stations (km) to points (xyz). */
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30 protected Map<Double, List<Coordinate>> lines;
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31
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32 public TIMParser() {
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33 lines = new TreeMap<Double, List<Coordinate>>(EpsilonComparator.CMP);
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34 }
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35
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36 /** Access map of stations (km) to coordinates (xyz). */
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37 public Map<Double, List<Coordinate>> getLines() {
7d9fcd322c45 Initial version of TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
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38 return lines;
7d9fcd322c45 Initial version of TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
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39 }
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40
7d9fcd322c45 Initial version of TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
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41 /** Get number of lines (data). */
7d9fcd322c45 Initial version of TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
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42 public int numLines() {
7d9fcd322c45 Initial version of TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
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43 return lines.size();
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44 }
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45
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46 /** Parse single .tim file. */
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47 public void load(String filename) throws IOException {
7d9fcd322c45 Initial version of TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
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48 BufferedReader reader =
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49 new BufferedReader(
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50 new InputStreamReader(
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51 new FileInputStream(filename), ENCODING));
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52 try {
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53 String row;
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54 while ((row = reader.readLine()) != null) {
7d9fcd322c45 Initial version of TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
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55 if (row.length() < 54) {
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56 logger.warn("row too short");
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57 continue;
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58 }
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59 double station, x, y, z;
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60 try {
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61 station = Double.parseDouble(row.substring( 9, 16))/1000d;
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62 x = Double.parseDouble(row.substring(20, 30))/1000d;
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63 y = Double.parseDouble(row.substring(30, 40))/1000d;
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64 z = Double.parseDouble(row.substring(47, 54))/10000d;
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65 } catch (NumberFormatException nfe) {
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66 logger.warn("Invalid row");
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67 continue;
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68 }
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69
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70 Double km = station;
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71
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72 List<Coordinate> line = lines.get(km);
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73 if (line == null) {
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74 line = new ArrayList<Coordinate>();
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75 lines.put(km, line);
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76 }
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77
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78 line.add(new Coordinate(x, y, z));
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79 }
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80 // Bring coords in lexicographical order.
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81 sortCoordinates();
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82 } finally {
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83 reader.close();
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84 }
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85 }
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86
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87 /** Sort coordinates of lines lexicographically. */
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88 protected void sortCoordinates() {
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89 for (List<Coordinate> line: lines.values()) {
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90 Collections.sort(line, LexiComparator.CMP);
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91 }
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92 }
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93 }
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94 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org