Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/importer/PegelGltParser.java @ 769:321b9e480f72

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Added a method to river to find the gauge with the max overlap with a given interval. flys-backend/trunk@2235 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sun, 26 Jun 2011 16:13:08 +0000
parents d37ccb04ab5d
children
rev   line source
184
4ab2c3bd474c Added parsing of PEGEL.GLT files.
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1 package de.intevation.flys.importer;
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2
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3 import java.io.File;
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4
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5 import java.util.List;
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6 import java.util.ArrayList;
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7
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8 import java.io.IOException;
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9 import java.io.LineNumberReader;
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10 import java.io.FileInputStream;
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11 import java.io.InputStreamReader;
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12
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13 import java.math.BigDecimal;
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14
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15 import org.apache.log4j.Logger;
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16
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17 import de.intevation.flys.utils.FileTools;
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18
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19 public class PegelGltParser
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20 {
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21 private static Logger log = Logger.getLogger(PegelGltParser.class);
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22
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23 public static final String ENCODING = "ISO-8859-1";
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24
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25 public static final String KM = "km:";
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26
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27 protected List<ImportGauge> gauges;
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28
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29 public PegelGltParser() {
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30 gauges = new ArrayList<ImportGauge>();
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31 }
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32
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33 public List<ImportGauge> getGauges() {
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34 return gauges;
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35 }
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36
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37 public void parse(File file) throws IOException {
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38
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39 File parent = file.getParentFile();
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40
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41 log.info("parsing GLT file '" + file + "'");
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42 LineNumberReader in = null;
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43 try {
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44 in =
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45 new LineNumberReader(
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46 new InputStreamReader(
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47 new FileInputStream(file), ENCODING));
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48
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49 String line = null;
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50 while ((line = in.readLine()) != null) {
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51 if ((line = line.trim()).length() == 0) {
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52 continue;
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53 }
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54
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55 int kmPos = line.indexOf(KM);
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56 if (kmPos < 0) {
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57 log.warn("no gauge found in line " + in.getLineNumber());
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58 continue;
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59 }
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60
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61 String gaugeName = line.substring(0, kmPos).trim();
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62 log.info("Found gauge '" + gaugeName + "'");
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63
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64 line = line.substring(kmPos + KM.length()).trim();
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65
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66 String [] parts = line.split("\\s+");
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67 if (parts.length < 4) {
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68 log.warn("line " + in.getLineNumber()
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69 + " has not enough columns");
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70 continue;
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71 }
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72
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73 BigDecimal from = new BigDecimal(parts[0].replace(",", "."));
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74 BigDecimal to = new BigDecimal(parts[1].replace(",", "."));
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75 if (from.compareTo(from) > 0) {
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76 BigDecimal t = from; from = to; to = t;
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77 }
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78 ImportRange range = new ImportRange(from, to);
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79 File staFile = FileTools.repair(new File(parent, parts[2]));
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80 File atFile = FileTools.repair(new File(parent, parts[3]));
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81
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82 if (log.isDebugEnabled()) {
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83 log.debug("\tfrom: " + from);
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84 log.debug("\tto: " + to);
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85 log.debug("\tsta: " + staFile);
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86 log.debug("\tat: " + atFile);
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87 }
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88
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89 gauges.add(new ImportGauge(range, staFile, atFile));
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90 }
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91 }
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92 finally {
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93 if (in != null) {
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94 in.close();
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95 }
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96 }
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97 }
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98 }
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99 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org