Mercurial > dive4elements > river
comparison flys-backend/src/main/java/org/dive4elements/river/importer/parsers/tim/TIMParser.java @ 5828:dfb26b03b179
Moved directories to org.dive4elements.river
| author | Sascha L. Teichmann <teichmann@intevation.de> |
|---|---|
| date | Thu, 25 Apr 2013 11:53:11 +0200 |
| parents | flys-backend/src/main/java/de/intevation/flys/importer/parsers/tim/TIMParser.java@9c1964fe3995 |
| children | 18619c1e7c2a |
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| 5827:e308d4ecd35a | 5828:dfb26b03b179 |
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| 1 package de.intevation.flys.importer.parsers.tim; | |
| 2 | |
| 3 import java.io.BufferedReader; | |
| 4 import java.io.FileInputStream; | |
| 5 import java.io.IOException; | |
| 6 import java.io.InputStreamReader; | |
| 7 | |
| 8 import java.util.ArrayList; | |
| 9 import java.util.Collections; | |
| 10 import java.util.List; | |
| 11 import java.util.Map; | |
| 12 import java.util.TreeMap; | |
| 13 | |
| 14 import org.apache.log4j.Logger; | |
| 15 | |
| 16 import de.intevation.flys.utils.EpsilonComparator; | |
| 17 | |
| 18 /** Parser for single .tim files. */ | |
| 19 public class TIMParser | |
| 20 { | |
| 21 /** Private logger. */ | |
| 22 private static Logger logger = Logger.getLogger(TIMParser.class); | |
| 23 | |
| 24 /** Proper encoding. */ | |
| 25 public static final String ENCODING = | |
| 26 System.getProperty("tim.encoding", "ISO-8859-1"); | |
| 27 | |
| 28 /** Map of stations (km) to points (xyz). */ | |
| 29 protected Map<Double, List<Coordinate>> lines; | |
| 30 | |
| 31 public TIMParser() { | |
| 32 lines = new TreeMap<Double, List<Coordinate>>(EpsilonComparator.CMP); | |
| 33 } | |
| 34 | |
| 35 /** Access map of stations (km) to coordinates (xyz). */ | |
| 36 public Map<Double, List<Coordinate>> getLines() { | |
| 37 return lines; | |
| 38 } | |
| 39 | |
| 40 /** Get number of lines (data). */ | |
| 41 public int numLines() { | |
| 42 return lines.size(); | |
| 43 } | |
| 44 | |
| 45 /** Parse single .tim file. */ | |
| 46 public void load(String filename) throws IOException { | |
| 47 BufferedReader reader = | |
| 48 new BufferedReader( | |
| 49 new InputStreamReader( | |
| 50 new FileInputStream(filename), ENCODING)); | |
| 51 try { | |
| 52 String row; | |
| 53 while ((row = reader.readLine()) != null) { | |
| 54 if (row.length() < 54) { | |
| 55 logger.warn("row too short"); | |
| 56 continue; | |
| 57 } | |
| 58 double station, x, y, z; | |
| 59 try { | |
| 60 station = Double.parseDouble(row.substring( 9, 16))/1000d; | |
| 61 x = Double.parseDouble(row.substring(20, 30))/1000d; | |
| 62 y = Double.parseDouble(row.substring(30, 40))/1000d; | |
| 63 z = Double.parseDouble(row.substring(47, 54))/10000d; | |
| 64 } catch (NumberFormatException nfe) { | |
| 65 logger.warn("Invalid row"); | |
| 66 continue; | |
| 67 } | |
| 68 | |
| 69 Double km = station; | |
| 70 | |
| 71 List<Coordinate> line = lines.get(km); | |
| 72 if (line == null) { | |
| 73 line = new ArrayList<Coordinate>(); | |
| 74 lines.put(km, line); | |
| 75 } | |
| 76 | |
| 77 line.add(new Coordinate(x, y, z)); | |
| 78 } | |
| 79 // Bring coords in lexicographical order. | |
| 80 sortCoordinates(); | |
| 81 } finally { | |
| 82 reader.close(); | |
| 83 } | |
| 84 } | |
| 85 | |
| 86 /** Sort coordinates of lines lexicographically. */ | |
| 87 protected void sortCoordinates() { | |
| 88 for (List<Coordinate> line: lines.values()) { | |
| 89 Collections.sort(line, LexiComparator.CMP); | |
| 90 } | |
| 91 } | |
| 92 } | |
| 93 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |