Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/importer/AtFileParser.java @ 482:3a99d0295006

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Importer: Support parsing "zusaetzliche Laengsschnitte". flys-backend/trunk@1801 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Tue, 03 May 2011 11:32:11 +0000
parents d980e545ccab
children 6b231041dc18
rev   line source
198
d980e545ccab Added import code for importing discharge tables.
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1 package de.intevation.flys.importer;
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2
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3 import java.io.BufferedReader;
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4 import java.io.File;
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5 import java.io.FileInputStream;
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6 import java.io.InputStreamReader;
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7 import java.io.IOException;
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8 import java.math.BigDecimal;
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9 import java.text.NumberFormat;
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10 import java.text.ParseException;
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11
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12 import org.apache.log4j.Logger;
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13
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14 import de.intevation.flys.importer.ImportDischargeTable;
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15 import de.intevation.flys.importer.ImportDischargeTableValue;
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16
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17
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18 public class AtFileParser {
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19
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20 public static final String ENCODING = "ISO-8859-1";
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21
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22 private static Logger logger = Logger.getLogger(AtFileParser.class);
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23
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24 private static NumberFormat nf = NumberFormat.getInstance();
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25
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26
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27 public AtFileParser() {
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28 }
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29
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30
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31 public ImportDischargeTable parse(ImportGauge gauge) throws IOException {
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32
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33 File file = gauge.getAtFile();
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34
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35 logger.info("parsing AT file: " + file);
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36
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37 BufferedReader br = null;
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38
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39 String line = null;
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40
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41 boolean beginning = true;
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42
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43 ImportDischargeTable dischargeTable = new ImportDischargeTable();
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44
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45 try {
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46 br = new BufferedReader(
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47 new InputStreamReader(
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48 new FileInputStream(file), ENCODING));
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49
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50 while ((line = br.readLine()) != null) {
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51 String tmp = line.trim();
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52
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53 if (tmp.length() == 0) {
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54 continue;
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55 }
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56
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57 if (tmp.startsWith("#! name=")) {
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58 // XXX Skip the name, because we don't know where to save
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59 // it at the moment
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60
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61 //String name = tmp.substring(8);
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62 continue;
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63 }
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64
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65 if (tmp.startsWith("#") || tmp.startsWith("*")) {
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66 continue;
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67 }
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68
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69 String[] splits = tmp.replace(',', '.').split("\\s+");
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70
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71 if ((splits.length < 2) || (splits.length > 11)) {
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72 logger.warn("Found an invalid row in the AT file.");
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73 continue;
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74 }
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75
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76 String strW = splits[0].trim();
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77 double W = nf.parse(strW).doubleValue();
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78
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79 /* shift is used to differenciate between lines with
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80 * exactly 10 Qs and lines with less than 10 Qs. The shift
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81 * is only modified when it is the first line.
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82 */
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83 int shift = 0;
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84
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85 if (splits.length != 11 && beginning) {
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86 shift = 11 - splits.length;
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87 }
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88
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89
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90 for (int i = 1; i < splits.length; i++) {
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91 double iW = W + shift + i;
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92 double iQ = nf.parse(splits[i].trim()).doubleValue();
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93
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94 dischargeTable.addDischargeTableValue(
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95 new ImportDischargeTableValue(
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96 new BigDecimal(iQ/100.0),
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97 new BigDecimal(iW/100.0)));
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98 }
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99
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100 beginning = false;
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101 }
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102 }
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103 catch (ParseException pe) {
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104 logger.warn(pe.getMessage());
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105 }
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106 finally {
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107 if (br != null) {
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108 br.close();
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109 }
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110 }
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111
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112 logger.info("Finished parsing AT file: " + file);
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113
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114 return dischargeTable;
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115 }
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116 }
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117 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org