Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/importer/parsers/WaterlevelParser.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
5844
4dd33b86dc61 Added header to river backend.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
diff changeset
1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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Sascha L. Teichmann <teichmann@intevation.de>
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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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parents: 5844
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6 * documentation coming with Dive4Elements River for details.
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Sascha L. Teichmann <teichmann@intevation.de>
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7 */
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Sascha L. Teichmann <teichmann@intevation.de>
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8
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9 package org.dive4elements.river.importer.parsers;
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parents:
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10
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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11 import java.io.File;
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12 import java.io.IOException;
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13 import java.math.BigDecimal;
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14 import java.text.NumberFormat;
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15 import java.text.ParseException;
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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 import org.dive4elements.river.backend.utils.DateUtil;
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23 import org.dive4elements.river.importer.ImportRange;
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24 import org.dive4elements.river.importer.ImportTimeInterval;
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25 import org.dive4elements.river.importer.ImportUnit;
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26 import org.dive4elements.river.importer.ImportWst;
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27 import org.dive4elements.river.importer.ImportWstColumn;
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28 import org.dive4elements.river.importer.ImportWstColumnValue;
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29 import org.dive4elements.river.importer.ImportWstQRange;
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30 import org.dive4elements.river.importer.common.AbstractParser;
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31
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32
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33 /**
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34 * Parse CSV Waterlevel files.
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35 * As these waterlevels are probably used in fixation analysis
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5016
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36 * only, functionality to export them to "fixation"-wsts
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parents: 5016
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37 * has been added (the ImportWaterlevel*- stuff is actually
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5016
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38 * not needed to do so.)
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39 */
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40 public class WaterlevelParser extends LineParser {
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41
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42 private static final Logger log = Logger.getLogger(WaterlevelParser.class);
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43
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44 private static final NumberFormat nf =
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45 NumberFormat.getInstance(DEFAULT_LOCALE);
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46
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47 private static final Pattern META_Q_RANGE =
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48 Pattern.compile("Abfluss\\s\\[(.*)\\];(.*)");
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49
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50 public static final Pattern META_UNIT =
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51 Pattern.compile("^Einheit: \\[(.*)\\].*");
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52
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53 public static final BigDecimal INTERVAL_GAP = new BigDecimal("0.00001");
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parents: 6319
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54
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55 private final List<ImportWst> waterlevels;
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56
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57 private ImportWst current;
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58
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59 /** The Waterlevel-Wst s will always have but one column. */
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60 private ImportWstColumn column;
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61
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62 /** The current (incomplete) Q Range. */
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63 private ImportWstQRange currentQRange;
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64
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65 /** The current (incomplete) km range for Q Range. */
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66 private ImportRange currentRange;
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67
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68 private String currentDescription;
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69
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parents: 2844
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70
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71 public WaterlevelParser() {
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72 this.waterlevels = new ArrayList<>();
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73 }
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74
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75
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76 public List<ImportWst> getWaterlevels() {
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77 return this.waterlevels;
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78 }
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parents:
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79
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80
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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81 @Override
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82 public void parse(final File file) throws IOException {
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83 this.currentDescription = file.getName();
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84
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85 super.parse(file);
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86 }
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87
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88
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parents: 2844
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89 @Override
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90 protected void reset() {
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91 this.currentQRange = null;
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92 this.current = new ImportWst(this.currentDescription);
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93 this.current.setNumberColumns(1);
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94 this.column = this.current.getColumn(0);
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95 this.column.setName(this.currentDescription);
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96 this.column.setDescription(this.currentDescription);
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parents: 6282
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97
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parents: 6282
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98 // Try to extract and set the TimeInterval.
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99 final Matcher m = WaterlevelDifferencesParser.YEARS_IN_COLUMN.matcher(
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100 this.currentDescription);
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101
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parents: 6282
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102 if (m.matches()) {
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103 final int startYear = Integer.parseInt(m.group(1));
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104 final int endYear = Integer.parseInt(m.group(2));
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105 final ImportTimeInterval time = new ImportTimeInterval(
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106 DateUtil.getStartDateFromYear(startYear),
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107 DateUtil.getEndDateFromYear(endYear)
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108 );
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109 this.column.setTimeInterval(time);
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parents: 6282
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110 } else {
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111 log.debug("No time interval in column header found: "
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112 + this.currentDescription);
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113 }
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114
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115 this.current.setKind(7);
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116 }
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117
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118
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119 @Override
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120 protected void finish() {
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121 if (this.current != null) {
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122 if (this.currentQRange != null) {
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123 final List<ImportWstColumnValue> cValues = this.column.getColumnValues();
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124 // Set end of range to last station
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parents: 6319
diff changeset
125 // or expand range to minimal length in case it would be 0
7883
fc8d5b5f2c99 Removed trailing whitespace.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 7377
diff changeset
126 // TODO: should otherwise be extended to
fc8d5b5f2c99 Removed trailing whitespace.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 7377
diff changeset
127 // (first station of next range - INTERVAL_GAP),
7377
ad2fdc34910a Importer: Avoid 0-lenght Q-ranges in WST-CSV-parsers.
Tom Gottfried <tom@intevation.de>
parents: 6319
diff changeset
128 // assuming always ascending stations
8989
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mschaefer
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diff changeset
129 final BigDecimal lastStation = cValues.get(cValues.size() -1)
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mschaefer
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diff changeset
130 .getPosition();
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mschaefer
parents: 8856
diff changeset
131 if (lastStation.compareTo(this.currentRange.getA()) == 0) {
2693bfaf503d Fixed several BigDecimal(double) creations by BigDecimal(String) parsing to avoid unnecessary decimal digits
mschaefer
parents: 8856
diff changeset
132 this.currentRange.setB(lastStation.add(INTERVAL_GAP));
7377
ad2fdc34910a Importer: Avoid 0-lenght Q-ranges in WST-CSV-parsers.
Tom Gottfried <tom@intevation.de>
parents: 6319
diff changeset
133 }
ad2fdc34910a Importer: Avoid 0-lenght Q-ranges in WST-CSV-parsers.
Tom Gottfried <tom@intevation.de>
parents: 6319
diff changeset
134 else {
8989
2693bfaf503d Fixed several BigDecimal(double) creations by BigDecimal(String) parsing to avoid unnecessary decimal digits
mschaefer
parents: 8856
diff changeset
135 this.currentRange.setB(lastStation);
7377
ad2fdc34910a Importer: Avoid 0-lenght Q-ranges in WST-CSV-parsers.
Tom Gottfried <tom@intevation.de>
parents: 6319
diff changeset
136 }
ad2fdc34910a Importer: Avoid 0-lenght Q-ranges in WST-CSV-parsers.
Tom Gottfried <tom@intevation.de>
parents: 6319
diff changeset
137
8989
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mschaefer
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diff changeset
138 this.currentQRange.setRange(this.currentRange);
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mschaefer
parents: 8856
diff changeset
139 this.column.addColumnQRange(this.currentQRange);
2845
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
140 }
2844
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
141
8989
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mschaefer
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diff changeset
142 this.waterlevels.add(this.current);
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a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
143 }
2844
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
144 }
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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145
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
146 @Override
8989
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mschaefer
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diff changeset
147 protected void handleLine(final int lineNum, final String line) {
2845
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
148 if (line.startsWith(START_META_CHAR)) {
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
149 handleMetaLine(stripMetaLine(line));
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
150 return;
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
151 }
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
152 else if (handleQRange(line)) {
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
153 return;
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
154 }
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
155 else {
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
156 handleDataLine(line);
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
157 return;
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
158 }
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
159 }
2844
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
160
2845
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
161
8989
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mschaefer
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diff changeset
162 private void handleMetaLine(final String meta) {
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mschaefer
parents: 8856
diff changeset
163 final Matcher m = META_UNIT.matcher(meta);
2845
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
164
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
165 if (m.matches()) {
8989
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mschaefer
parents: 8856
diff changeset
166 final String unit = m.group(1);
2845
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
167 log.debug("Found unit: '" + unit + "'");
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
168
8989
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mschaefer
parents: 8856
diff changeset
169 this.current.setUnit(new ImportUnit(unit));
2845
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
170 }
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
171 }
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
172
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
173
8989
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mschaefer
parents: 8856
diff changeset
174 private boolean handleQRange(final String line) {
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mschaefer
parents: 8856
diff changeset
175 final Matcher m = META_Q_RANGE.matcher(line);
2845
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
176
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
177 if (m.matches()) {
8989
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mschaefer
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diff changeset
178 final String unitStr = m.group(1);
2693bfaf503d Fixed several BigDecimal(double) creations by BigDecimal(String) parsing to avoid unnecessary decimal digits
mschaefer
parents: 8856
diff changeset
179 final String valueStr = m.group(2);
5240
9c024718bffb WaterlevelParser: Use Wst-structures directly (instead of Waterlevel*).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5231
diff changeset
180 try {
8989
2693bfaf503d Fixed several BigDecimal(double) creations by BigDecimal(String) parsing to avoid unnecessary decimal digits
mschaefer
parents: 8856
diff changeset
181 if (this.currentQRange != null) {
5240
9c024718bffb WaterlevelParser: Use Wst-structures directly (instead of Waterlevel*).
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parents: 5231
diff changeset
182 // Finish off the last one.
8989
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mschaefer
parents: 8856
diff changeset
183 final List<ImportWstColumnValue> cValues = this.column
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mschaefer
parents: 8856
diff changeset
184 .getColumnValues();
5240
9c024718bffb WaterlevelParser: Use Wst-structures directly (instead of Waterlevel*).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5231
diff changeset
185 // Set end of range to last station.
8989
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mschaefer
parents: 8856
diff changeset
186 this.currentRange.setB(cValues.get(cValues.size() -1)
2693bfaf503d Fixed several BigDecimal(double) creations by BigDecimal(String) parsing to avoid unnecessary decimal digits
mschaefer
parents: 8856
diff changeset
187 .getPosition());
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mschaefer
parents: 8856
diff changeset
188 this.currentQRange.setRange(this.currentRange);
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mschaefer
parents: 8856
diff changeset
189 this.column.addColumnQRange(this.currentQRange);
2845
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
190 }
8989
2693bfaf503d Fixed several BigDecimal(double) creations by BigDecimal(String) parsing to avoid unnecessary decimal digits
mschaefer
parents: 8856
diff changeset
191 this.currentQRange = new ImportWstQRange(null,
2693bfaf503d Fixed several BigDecimal(double) creations by BigDecimal(String) parsing to avoid unnecessary decimal digits
mschaefer
parents: 8856
diff changeset
192 AbstractParser.parseDecimal(valueStr));
2693bfaf503d Fixed several BigDecimal(double) creations by BigDecimal(String) parsing to avoid unnecessary decimal digits
mschaefer
parents: 8856
diff changeset
193 this.currentRange = new ImportRange();
2845
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
194
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
195 log.debug("Found new Q range: Q=" + valueStr);
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
196
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
197 return true;
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
198 }
8991
c43d8c1a4455 Parse via decimalformat instead of bigdecimal constructor (to cope with strings with chars after the actual number)
mschaefer
parents: 8989
diff changeset
199 catch (final ParseException pe) {
5490
b3dd14fc13a6 Parsers: do not call warnings error
Tom Gottfried <tom.gottfried@intevation.de>
parents: 5264
diff changeset
200 log.warn("Unparseable Q range: '" + line + "'");
2845
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
201 }
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
202 }
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
203
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
204 return false;
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
205 }
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
206
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
207
8989
2693bfaf503d Fixed several BigDecimal(double) creations by BigDecimal(String) parsing to avoid unnecessary decimal digits
mschaefer
parents: 8856
diff changeset
208 private void handleDataLine(final String line) {
2693bfaf503d Fixed several BigDecimal(double) creations by BigDecimal(String) parsing to avoid unnecessary decimal digits
mschaefer
parents: 8856
diff changeset
209 final String[] cols = line.split(SEPERATOR_CHAR);
2845
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
210
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
211 if (cols == null || cols.length < 2) {
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
212 log.warn("skip invalid waterlevel line: '" + line + "'");
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
213 return;
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
214 }
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
215
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
216 try {
5240
9c024718bffb WaterlevelParser: Use Wst-structures directly (instead of Waterlevel*).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5231
diff changeset
217 // Store the value and remember the position for QRange, if needed.
8989
2693bfaf503d Fixed several BigDecimal(double) creations by BigDecimal(String) parsing to avoid unnecessary decimal digits
mschaefer
parents: 8856
diff changeset
218 final BigDecimal station = AbstractParser.parseDecimal(cols[0]);
2693bfaf503d Fixed several BigDecimal(double) creations by BigDecimal(String) parsing to avoid unnecessary decimal digits
mschaefer
parents: 8856
diff changeset
219 final BigDecimal value = AbstractParser.parseDecimal(cols[1]);
2845
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
220
8989
2693bfaf503d Fixed several BigDecimal(double) creations by BigDecimal(String) parsing to avoid unnecessary decimal digits
mschaefer
parents: 8856
diff changeset
221 this.column.addColumnValue(station, value);
5240
9c024718bffb WaterlevelParser: Use Wst-structures directly (instead of Waterlevel*).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5231
diff changeset
222
8989
2693bfaf503d Fixed several BigDecimal(double) creations by BigDecimal(String) parsing to avoid unnecessary decimal digits
mschaefer
parents: 8856
diff changeset
223 if (this.currentRange.getA() == null) {
2693bfaf503d Fixed several BigDecimal(double) creations by BigDecimal(String) parsing to avoid unnecessary decimal digits
mschaefer
parents: 8856
diff changeset
224 this.currentRange.setA(station);
5240
9c024718bffb WaterlevelParser: Use Wst-structures directly (instead of Waterlevel*).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5231
diff changeset
225 }
2845
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
226 }
8991
c43d8c1a4455 Parse via decimalformat instead of bigdecimal constructor (to cope with strings with chars after the actual number)
mschaefer
parents: 8989
diff changeset
227 catch (final ParseException pe) {
5490
b3dd14fc13a6 Parsers: do not call warnings error
Tom Gottfried <tom.gottfried@intevation.de>
parents: 5264
diff changeset
228 log.warn("Unparseable number in data row: " + line);
2845
a65b5b0ade6f Completed the MINFO waterlevel import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2844
diff changeset
229 }
2844
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
230 }
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
231 }
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
232 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org