Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/importer/parsers/PegelGltParser.java @ 6328:53d08f33d094

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Backend: Moved guessing of main values and there time intervals out of the STA parser. Same come will be useful to extend the WST parser to better handle official lines.
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 13 Jun 2013 17:15:34 +0200
parents 4c3ccf2b0304
children 82b8bfb47260
rev   line source
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Sascha L. Teichmann <teichmann@intevation.de>
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.importer.parsers;
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10
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11 import java.io.File;
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12
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13 import java.util.List;
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14 import java.util.ArrayList;
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15
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16 import java.io.IOException;
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17 import java.io.LineNumberReader;
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18 import java.io.FileInputStream;
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19 import java.io.InputStreamReader;
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20
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21 import java.math.BigDecimal;
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22
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23 import org.apache.log4j.Logger;
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24
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25 import org.dive4elements.artifacts.common.utils.FileTools;
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26
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27 import org.dive4elements.river.importer.ImportGauge;
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28 import org.dive4elements.river.importer.ImportRange;
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29
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30 public class PegelGltParser
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31 {
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32 private static Logger log = Logger.getLogger(PegelGltParser.class);
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33
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34 public static final String ENCODING = "ISO-8859-1";
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35
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36 public static final String KM = "km:";
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37
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38 protected List<ImportGauge> gauges;
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39
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40 public PegelGltParser() {
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41 gauges = new ArrayList<ImportGauge>();
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42 }
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43
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44 public List<ImportGauge> getGauges() {
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45 return gauges;
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46 }
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47
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48 public void parse(File file) throws IOException {
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49
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50 File parent = file.getParentFile();
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51
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52 log.info("parsing GLT file '" + file + "'");
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53 LineNumberReader in = null;
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54 try {
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55 in =
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56 new LineNumberReader(
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57 new InputStreamReader(
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58 new FileInputStream(file), ENCODING));
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59
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60 String line = null;
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61 while ((line = in.readLine()) != null) {
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62 if ((line = line.trim()).length() == 0) {
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63 continue;
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64 }
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65
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66 int kmPos = line.indexOf(KM);
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67 if (kmPos < 0) {
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68 log.warn("GLT: no gauge found in line " + in.getLineNumber());
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69 continue;
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70 }
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71
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72 String gaugeName = line.substring(0, kmPos).trim();
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73 log.info("Found gauge '" + gaugeName + "'");
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74
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75 line = line.substring(kmPos + KM.length()).trim();
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76
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77 String [] parts = line.split("\\s+");
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78 if (parts.length < 4) {
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79 log.warn("GLT: line " + in.getLineNumber()
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80 + " has not enough columns.");
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81 continue;
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82 }
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83
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84 BigDecimal from = new BigDecimal(parts[0].replace(",", "."));
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85 BigDecimal to = new BigDecimal(parts[1].replace(",", "."));
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86 if (from.compareTo(from) > 0) {
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87 BigDecimal t = from; from = to; to = t;
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88 }
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89 ImportRange range = new ImportRange(from, to);
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90 File staFile = FileTools.repair(new File(parent, parts[2]));
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91 File atFile = FileTools.repair(new File(parent, parts[3]));
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92
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93 if (log.isDebugEnabled()) {
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94 log.debug("\tfrom: " + from);
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95 log.debug("\tto: " + to);
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96 log.debug("\tsta: " + staFile);
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97 log.debug("\tat: " + atFile);
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98 }
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99
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100 gauges.add(new ImportGauge(range, staFile, atFile));
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101 }
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102 }
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103 finally {
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104 if (in != null) {
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105 in.close();
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106 }
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107 }
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108 }
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109 }
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110 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org