Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/importer/parsers/MorphologicalWidthParser.java @ 5844:4dd33b86dc61

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Added header to river backend.
author Sascha L. Teichmann <teichmann@intevation.de>
date Fri, 26 Apr 2013 08:25:41 +0200
parents 5aa05a7a34b7
children 4c3ccf2b0304
rev   line source
5844
4dd33b86dc61 Added header to river backend.
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
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13 import java.text.NumberFormat;
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14 import java.text.ParseException;
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15
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16 import java.util.ArrayList;
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17 import java.util.List;
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18 import java.util.regex.Matcher;
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19 import java.util.regex.Pattern;
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20
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21 import org.apache.log4j.Logger;
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22
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23 import org.dive4elements.river.importer.ImportMorphWidth;
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24 import org.dive4elements.river.importer.ImportMorphWidthValue;
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25 import org.dive4elements.river.importer.ImportUnit;
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26
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27
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28 public class MorphologicalWidthParser extends LineParser {
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29
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30 private static final Logger log =
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31 Logger.getLogger(MorphologicalWidthParser.class);
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32
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33 public static final NumberFormat nf = NumberFormat.getInstance(DEFAULT_LOCALE);
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34
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35 public static final Pattern META_UNIT =
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36 Pattern.compile("^Einheit: \\[(.*)\\].*");
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37
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38 protected List<ImportMorphWidth> morphWidths;
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39
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40 protected ImportMorphWidth current;
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41
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42
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43 public MorphologicalWidthParser() {
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44 morphWidths = new ArrayList<ImportMorphWidth>();
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45 }
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46
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47
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48 @Override
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49 protected void reset() {
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50 current = new ImportMorphWidth();
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51 }
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52
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53
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54 @Override
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55 protected void finish() {
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56 if (current != null) {
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57 morphWidths.add(current);
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58 }
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59 }
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60
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61
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62 @Override
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63 protected void handleLine(int lineNum, String line) {
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64 if (line.startsWith(START_META_CHAR)) {
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65 handleMetaLine(stripMetaLine(line));
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66 }
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67 else {
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68 handleDataLine(line);
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69 }
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70 }
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71
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72
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73 protected void handleMetaLine(String line) {
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74 if (handleMetaUnit(line)) {
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75 return;
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76 }
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77 else {
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78 log.warn("MWP: Unknown meta line: '" + line + "'");
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79 }
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80 }
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81
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82
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83 protected boolean handleMetaUnit(String line) {
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84 Matcher m = META_UNIT.matcher(line);
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85
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86 if (m.matches()) {
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87 String unit = m.group(1);
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88
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89 current.setUnit(new ImportUnit(unit));
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90
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91 return true;
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92 }
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93
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94 return false;
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95 }
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96
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97
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98 protected void handleDataLine(String line) {
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99 String[] vals = line.split(SEPERATOR_CHAR);
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100
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101 if (vals == null || vals.length < 2) {
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102 log.warn("MWP: skip invalid data line: '" + line + "'");
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103 return;
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104 }
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105
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106 try {
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107 BigDecimal km = new BigDecimal(nf.parse(vals[0]).doubleValue());
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108 BigDecimal width = new BigDecimal(nf.parse(vals[1]).doubleValue());
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109
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110 String desc = vals.length > 2 ? vals[2] : null;
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111
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112 current.addValue(new ImportMorphWidthValue(
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113 km,
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114 width,
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115 desc
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116 ));
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117 }
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118 catch (ParseException pe) {
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119 log.warn("MWP: unparseable number in data row: " + line);
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120 }
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121 }
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122
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123
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124 public List<ImportMorphWidth> getMorphologicalWidths() {
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125 return morphWidths;
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126 }
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127 }
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128 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org