Mercurial > dive4elements > river
annotate flys-backend/src/main/java/de/intevation/flys/importer/parsers/MorphologicalWidthParser.java @ 4760:69bb2996ed19
W80Parser: Doc.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Fri, 04 Jan 2013 11:11:24 +0100 |
parents | f63b39799d2d |
children | 255898799ed9 |
rev | line source |
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1 package de.intevation.flys.importer.parsers; |
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2 |
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3 import java.math.BigDecimal; |
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4 |
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5 import java.text.NumberFormat; |
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6 import java.text.ParseException; |
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7 |
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8 import java.util.ArrayList; |
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9 import java.util.List; |
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10 import java.util.regex.Matcher; |
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11 import java.util.regex.Pattern; |
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12 |
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13 import org.apache.log4j.Logger; |
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14 |
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15 import de.intevation.flys.importer.ImportMorphWidth; |
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16 import de.intevation.flys.importer.ImportMorphWidthValue; |
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17 import de.intevation.flys.importer.ImportUnit; |
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18 |
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19 |
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20 public class MorphologicalWidthParser extends LineParser { |
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21 |
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22 private static final Logger log = |
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23 Logger.getLogger(MorphologicalWidthParser.class); |
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24 |
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25 |
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26 public static final NumberFormat nf = NumberFormat.getInstance(DEFAULT_LOCALE); |
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27 |
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28 |
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29 public static final Pattern META_UNIT = |
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30 Pattern.compile("^Einheit: \\[(.*)\\].*"); |
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31 |
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32 |
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33 protected List<ImportMorphWidth> morphWidths; |
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34 |
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35 protected ImportMorphWidth current; |
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36 |
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37 |
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38 public MorphologicalWidthParser() { |
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39 morphWidths = new ArrayList<ImportMorphWidth>(); |
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40 } |
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41 |
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42 |
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43 @Override |
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44 protected void reset() { |
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45 current = new ImportMorphWidth(); |
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46 } |
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47 |
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48 |
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49 @Override |
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50 protected void finish() { |
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51 if (current != null) { |
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52 morphWidths.add(current); |
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53 } |
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54 } |
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55 |
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56 |
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57 @Override |
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58 protected void handleLine(int lineNum, String line) { |
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59 if (line.startsWith(START_META_CHAR)) { |
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60 handleMetaLine(stripMetaLine(line)); |
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61 } |
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62 else { |
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63 handleDataLine(line); |
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64 } |
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65 } |
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66 |
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67 |
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68 protected void handleMetaLine(String line) { |
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69 if (handleMetaUnit(line)) { |
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70 return; |
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71 } |
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72 else { |
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73 log.warn("MWP: Unknown meta line: '" + line + "'"); |
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74 } |
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75 } |
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76 |
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77 |
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78 protected boolean handleMetaUnit(String line) { |
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79 Matcher m = META_UNIT.matcher(line); |
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80 |
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81 if (m.matches()) { |
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82 String unit = m.group(1); |
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83 |
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84 current.setUnit(new ImportUnit(unit)); |
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85 |
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86 return true; |
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87 } |
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88 |
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89 return false; |
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90 } |
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91 |
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92 |
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93 protected void handleDataLine(String line) { |
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94 String[] vals = line.split(SEPERATOR_CHAR); |
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95 |
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96 if (vals == null || vals.length < 2) { |
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97 log.warn("MWP: skip invalid data line: '" + line + "'"); |
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98 return; |
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99 } |
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100 |
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101 try { |
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102 BigDecimal km = new BigDecimal(nf.parse(vals[0]).doubleValue()); |
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103 BigDecimal width = new BigDecimal(nf.parse(vals[1]).doubleValue()); |
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104 |
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105 String desc = vals.length > 2 ? vals[2] : null; |
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106 |
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107 current.addValue(new ImportMorphWidthValue( |
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108 km, |
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109 width, |
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110 desc |
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111 )); |
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112 } |
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113 catch (ParseException pe) { |
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114 log.warn("MWP: Error while parsing numbers in '" + line + "'"); |
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115 } |
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116 } |
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117 |
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118 |
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119 public List<ImportMorphWidth> getMorphologicalWidths() { |
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120 return morphWidths; |
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121 } |
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122 } |
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123 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |