Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/importer/parsers/WaterlevelDifferencesParser.java @ 8856:5e38e2924c07 3.2.x

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Fix code style.
author Tom Gottfried <tom@intevation.de>
date Thu, 18 Jan 2018 20:12:01 +0100
parents 3bb1c62ad732
children 2693bfaf503d 0a5239a1e46e
rev   line source
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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.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
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23 import org.dive4elements.river.importer.ImportTimeInterval;
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24 import org.dive4elements.river.importer.ImportUnit;
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25
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26 import org.dive4elements.river.importer.ImportWst;
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27 import org.dive4elements.river.importer.ImportWstQRange;
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28 import org.dive4elements.river.importer.ImportWstColumn;
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29 import org.dive4elements.river.importer.ImportWstColumnValue;
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30 import org.dive4elements.river.backend.utils.DateUtil;
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31
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32
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33 /**
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34 * Parse WaterlevelDifferences CSV file.
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35 */
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36 public class WaterlevelDifferencesParser extends LineParser {
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37
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38 private static final Logger log =
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39 Logger.getLogger(WaterlevelDifferencesParser.class);
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40
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41 private static final NumberFormat nf =
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42 NumberFormat.getInstance(DEFAULT_LOCALE);
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43
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44 public static final Pattern META_UNIT =
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45 Pattern.compile("^Einheit: \\[(.*)\\].*");
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46
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47 public static final Pattern YEARS_IN_COLUMN =
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48 Pattern.compile(".*(\\d{4})-(\\d{4})$");
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49
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50 public static final double INTERVAL_GAP = 0.00001d;
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51
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52 /** List of parsed differences as ImportWst s. */
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53 private List<ImportWst> differences;
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54
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55 private ImportWstColumn[] columns;
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56
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57 /** The currently processed dataset. */
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58 private ImportWst current;
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59
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60
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61 public WaterlevelDifferencesParser() {
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62 differences = new ArrayList<ImportWst>();
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63 }
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64
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65
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66 /** Get the differences as wst parsed so far. */
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67 public List<ImportWst> getDifferences() {
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68 return differences;
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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 * Parse a csv waterleveldifferenceparser and create a ImportWst object
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74 * from it.
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75 */
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76 @Override
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77 public void parse(File file) throws IOException {
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78 current = new ImportWst(file.getName());
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79 current.setKind(6);
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80
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81 super.parse(file);
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82 }
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83
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84
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85 /** No rewind implemented. */
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86 @Override
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87 protected void reset() {
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88 }
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89
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90
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91 @Override
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92 protected void finish() {
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93 if (columns != null && current != null) {
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94 // TODO figure out if its needed, as the columns
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95 // are registered at their construction time.
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96 for (ImportWstColumn col: columns) {
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97 // TODO place a current.addColumn(col); here?
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98 }
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99
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100 differences.add(current);
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101 }
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102
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103 // For all differences columns, add a single Q-Range with
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104 // -1.
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105 // Expand range to minimal length in case it would be 0
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106 // TODO: should otherwise be extended to
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107 // (first station of next range - INTERVAL_GAP),
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108 // assuming always ascending stations
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109 for (ImportWstColumn column: columns) {
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110 List<ImportWstColumnValue> cValues = column.getColumnValues();
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111 BigDecimal a = cValues.get(0).getPosition();
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112 BigDecimal b = cValues.get(cValues.size() - 1).getPosition();
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113 if (a.compareTo(b) == 0) {
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114 b = new BigDecimal(b.doubleValue() + INTERVAL_GAP);
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115 }
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116 column.addColumnQRange(
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117 new ImportWstQRange(
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118 a,
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119 b,
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120 new BigDecimal(-1d))
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121 );
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122 }
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123 current = null;
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124 columns = null;
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125 }
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126
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d1e24f26dee0 WaterlevelDifferencesParser: Doc and cosmetics.
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127
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128 @Override
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129 protected void handleLine(int lineNum, String line) {
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130 if (line.startsWith(START_META_CHAR)) {
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131 handleMetaLine(stripMetaLine(line));
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132 }
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133 else {
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134 handleDataLine(line);
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135 }
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
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136 }
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
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137
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
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138
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
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139 private void handleMetaLine(String meta) {
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140 if (handleMetaUnit(meta)) {
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141 return;
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142 }
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
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143 else {
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
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144 handleMetaColumnNames(meta);
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145 }
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146 }
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147
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148
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149 private boolean handleMetaUnit(String meta) {
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150 Matcher m = META_UNIT.matcher(meta);
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151
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152 if (m.matches()) {
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153 String unit = m.group(1);
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154 log.debug("Found unit: '" + unit + "'");
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155
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156 current.setUnit(new ImportUnit(unit));
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157
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158 return true;
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159 }
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160
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161 return false;
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162 }
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163
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164
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165 private boolean handleMetaColumnNames(String meta) {
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166 Pattern META_COLUMN_NAMES = Pattern.compile("Fluss-km;(.*)");
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167 Matcher m = META_COLUMN_NAMES.matcher(meta);
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168
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169 if (m.matches()) {
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170 String colStr = m.group(1);
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171 String[] cols = colStr.split(SEPERATOR_CHAR);
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172
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173 log.debug("Found " + cols.length + " columns.");
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174
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175 initColumns(cols);
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176
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177 return true;
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178 }
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179
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180 return false;
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181 }
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182
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183
6286
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184 /** Setup column structures with name, description and time interval. */
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185 private void initColumns(String[] cols) {
5264
731030b69c7e Fix Waterlevel*-Parser to correctly register the wst-columns.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5247
diff changeset
186 current.setNumberColumns(cols.length);
8856
5e38e2924c07 Fix code style.
Tom Gottfried <tom@intevation.de>
parents: 8187
diff changeset
187 columns = current.getColumns().toArray(
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parents: 8187
diff changeset
188 new ImportWstColumn[cols.length]);
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189
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190 for (int i = 0; i < cols.length; i++) {
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191 String name = cols[i].replace("\"", "");
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192
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193 log.debug("Create new column '" + name + "'");
6290
db7d0600d39d Minor refac.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6287
diff changeset
194 ImportWstColumn column = current.getColumn(i);
db7d0600d39d Minor refac.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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195 column.setName(name);
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diff changeset
196 column.setDescription(name);
6287
8d9e9b1ded7d Waterl.Diff.Parser issue1354: Extract years from name, to later set timeintervals.
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parents: 6286
diff changeset
197
8d9e9b1ded7d Waterl.Diff.Parser issue1354: Extract years from name, to later set timeintervals.
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parents: 6286
diff changeset
198 Matcher m = YEARS_IN_COLUMN.matcher(name);
8d9e9b1ded7d Waterl.Diff.Parser issue1354: Extract years from name, to later set timeintervals.
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199
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parents: 6286
diff changeset
200 if (m.matches()) {
6291
33ccce4a3aae WaterlevelDifferencesParser: issue1354/1, set timeintervals from waterdiff-csvs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6290
diff changeset
201 int startYear = Integer.parseInt(m.group(1));
33ccce4a3aae WaterlevelDifferencesParser: issue1354/1, set timeintervals from waterdiff-csvs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6290
diff changeset
202 int endYear = Integer.parseInt(m.group(2));
33ccce4a3aae WaterlevelDifferencesParser: issue1354/1, set timeintervals from waterdiff-csvs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6290
diff changeset
203 ImportTimeInterval time = new ImportTimeInterval(
7927
07cc4cd9233e Add new DateUtil class.
"Tom Gottfried <tom@intevation.de>"
parents: 7883
diff changeset
204 DateUtil.getStartDateFromYear(startYear),
07cc4cd9233e Add new DateUtil class.
"Tom Gottfried <tom@intevation.de>"
parents: 7883
diff changeset
205 DateUtil.getEndDateFromYear(endYear)
6291
33ccce4a3aae WaterlevelDifferencesParser: issue1354/1, set timeintervals from waterdiff-csvs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6290
diff changeset
206 );
33ccce4a3aae WaterlevelDifferencesParser: issue1354/1, set timeintervals from waterdiff-csvs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6290
diff changeset
207 column.setTimeInterval(time);
6287
8d9e9b1ded7d Waterl.Diff.Parser issue1354: Extract years from name, to later set timeintervals.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6286
diff changeset
208 } else {
8d9e9b1ded7d Waterl.Diff.Parser issue1354: Extract years from name, to later set timeintervals.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6286
diff changeset
209 log.debug("No time interval in column header found: " + name);
8d9e9b1ded7d Waterl.Diff.Parser issue1354: Extract years from name, to later set timeintervals.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6286
diff changeset
210 }
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parents:
diff changeset
211 }
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
212 }
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
213
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
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parents:
diff changeset
214
6752
f275aae00c55 issue1433: Do not emit warning when tolerated empty string as value.
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parents: 6321
diff changeset
215 /** Handle one line of data, add one value for all columns.
f275aae00c55 issue1433: Do not emit warning when tolerated empty string as value.
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parents: 6321
diff changeset
216 * @param line the line to parse
f275aae00c55 issue1433: Do not emit warning when tolerated empty string as value.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6321
diff changeset
217 */
2850
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parents:
diff changeset
218 private void handleDataLine(String line) {
6753
e032e9e6d09e issue1433: Include trailing empty strings in stringsplit, this prevents emission
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6752
diff changeset
219 // Split by separator, do not exclude trailing empty string.
e032e9e6d09e issue1433: Include trailing empty strings in stringsplit, this prevents emission
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6752
diff changeset
220 String[] cols = line.split(SEPERATOR_CHAR, -1);
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parents:
diff changeset
221
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
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parents:
diff changeset
222 if (cols == null || cols.length < 2) {
5230
fb7d43ba8147 WaterlevelDifferencesParser: Cosmetics and fix misleading debug output.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5229
diff changeset
223 log.warn("skip invalid waterlevel-diff line: '" + line + "'");
2850
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parents:
diff changeset
224 return;
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
225 }
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
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parents:
diff changeset
226
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
227 try {
8856
5e38e2924c07 Fix code style.
Tom Gottfried <tom@intevation.de>
parents: 8187
diff changeset
228 // The first value in a line like 12,9;4,3;4,5 is the station,
5e38e2924c07 Fix code style.
Tom Gottfried <tom@intevation.de>
parents: 8187
diff changeset
229 // later real values.
2850
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
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parents:
diff changeset
230 Double station = nf.parse(cols[0]).doubleValue();
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
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parents:
diff changeset
231
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
232 for (int i = 0; i < columns.length; i++) {
3940
aed7aba93718 Improved logging and stabilized minfo import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2850
diff changeset
233 int idx = i+1;
aed7aba93718 Improved logging and stabilized minfo import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2850
diff changeset
234
aed7aba93718 Improved logging and stabilized minfo import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2850
diff changeset
235 if (idx >= cols.length) {
aed7aba93718 Improved logging and stabilized minfo import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2850
diff changeset
236 log.warn("Insufficient column numbers: " + line);
aed7aba93718 Improved logging and stabilized minfo import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2850
diff changeset
237 continue;
aed7aba93718 Improved logging and stabilized minfo import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2850
diff changeset
238 }
aed7aba93718 Improved logging and stabilized minfo import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2850
diff changeset
239
aed7aba93718 Improved logging and stabilized minfo import.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2850
diff changeset
240 String value = cols[idx];
2850
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
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parents:
diff changeset
241
6752
f275aae00c55 issue1433: Do not emit warning when tolerated empty string as value.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6321
diff changeset
242 if (value != null && !value.equals("")) {
f275aae00c55 issue1433: Do not emit warning when tolerated empty string as value.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6321
diff changeset
243 try {
f275aae00c55 issue1433: Do not emit warning when tolerated empty string as value.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6321
diff changeset
244 columns[i].addColumnValue(
f275aae00c55 issue1433: Do not emit warning when tolerated empty string as value.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6321
diff changeset
245 new BigDecimal(station),
f275aae00c55 issue1433: Do not emit warning when tolerated empty string as value.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6321
diff changeset
246 new BigDecimal(nf.parse(value).doubleValue()));
f275aae00c55 issue1433: Do not emit warning when tolerated empty string as value.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6321
diff changeset
247 }
f275aae00c55 issue1433: Do not emit warning when tolerated empty string as value.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6321
diff changeset
248 catch (ParseException pe) {
f275aae00c55 issue1433: Do not emit warning when tolerated empty string as value.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6321
diff changeset
249 log.warn("Could not parse value: '" + value + "'");
f275aae00c55 issue1433: Do not emit warning when tolerated empty string as value.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 6321
diff changeset
250 }
2850
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
251 }
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
252 }
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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253 }
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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254 catch (ParseException pe) {
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b3dd14fc13a6 Parsers: do not call warnings error
Tom Gottfried <tom.gottfried@intevation.de>
parents: 5264
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255 log.warn("Could not parse station: '" + line + "'");
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a1402c16152f Added a parser and importer classes used to import waterlevel differences.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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256 }
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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257 }
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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258 }
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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259 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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