Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/importer/parsers/MorphologicalWidthParser.java @ 8991:c43d8c1a4455

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Parse via decimalformat instead of bigdecimal constructor (to cope with strings with chars after the actual number)
author mschaefer
date Tue, 10 Apr 2018 16:43:32 +0200
parents 2693bfaf503d
children
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.math.BigDecimal;
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12 import java.text.NumberFormat;
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13 import java.text.ParseException;
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14 import java.util.ArrayList;
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15 import java.util.List;
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16 import java.util.regex.Matcher;
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17 import java.util.regex.Pattern;
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18
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19 import org.apache.log4j.Logger;
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20 import org.dive4elements.river.importer.ImportMorphWidth;
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21 import org.dive4elements.river.importer.ImportMorphWidthValue;
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22 import org.dive4elements.river.importer.ImportUnit;
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23 import org.dive4elements.river.importer.common.AbstractParser;
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24
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25
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26 public class MorphologicalWidthParser extends LineParser {
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27
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28 private static final Logger log =
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29 Logger.getLogger(MorphologicalWidthParser.class);
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30
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31 public static final NumberFormat nf = NumberFormat.getInstance(
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32 DEFAULT_LOCALE);
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33
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34 public static final Pattern META_UNIT =
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35 Pattern.compile("^Einheit: \\[(.*)\\].*");
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36
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37 protected List<ImportMorphWidth> morphWidths;
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38
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39 protected ImportMorphWidth current;
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40
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41
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42 public MorphologicalWidthParser() {
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43 this.morphWidths = new ArrayList<>();
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44 }
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45
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46
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47 @Override
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48 protected void reset() {
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49 this.current = new ImportMorphWidth();
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50 }
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51
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52
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53 @Override
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54 protected void finish() {
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55 if (this.current != null) {
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56 this.morphWidths.add(this.current);
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57 }
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58 }
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59
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60
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61 @Override
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62 protected void handleLine(final int lineNum, final String line) {
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63 if (line.startsWith(START_META_CHAR)) {
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64 handleMetaLine(stripMetaLine(line));
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65 }
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66 else {
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67 handleDataLine(line);
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68 }
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69 }
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70
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71
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72 protected void handleMetaLine(final String line) {
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73 if (handleMetaUnit(line)) {
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74 return;
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75 }
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76 else {
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77 log.warn("MWP: Unknown meta line: '" + line + "'");
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78 }
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79 }
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80
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81
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82 protected boolean handleMetaUnit(final String line) {
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83 final Matcher m = META_UNIT.matcher(line);
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84
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85 if (m.matches()) {
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86 final String unit = m.group(1);
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87
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88 this.current.setUnit(new ImportUnit(unit));
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89
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90 return true;
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91 }
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92
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93 return false;
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94 }
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95
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96
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97 protected void handleDataLine(final String line) {
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98 final String[] vals = line.split(SEPERATOR_CHAR);
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99
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100 if (vals == null || vals.length < 2) {
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101 log.warn("MWP: skip invalid data line: '" + line + "'");
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102 return;
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103 }
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104
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105 try {
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106 final BigDecimal km = AbstractParser.parseDecimal(vals[0]);
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107 final BigDecimal width = AbstractParser.parseDecimal(vals[1]);
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108
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109 final String desc = vals.length > 2 ? vals[2] : null;
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110
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111 this.current.addValue(new ImportMorphWidthValue(
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112 km,
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113 width,
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114 desc
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115 ));
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116 }
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117 catch (final ParseException pe) {
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118 log.warn("MWP: unparseable number in data row: " + line);
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119 }
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120 }
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121
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122
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123 public List<ImportMorphWidth> getMorphologicalWidths() {
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124 return this.morphWidths;
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125 }
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126 }
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127 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org