Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/importer/uinfo/parsers/SalixParser.java @ 9660:f0cad5212f49

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Importer (s/u-info) extensions: iota (salix): detecting, logging, cancelling in case of wrong column titles/units, detecting, logging and skipping lines with missing values
author mschaefer
date Mon, 23 Mar 2020 15:40:12 +0100
parents 66a43d9f65c8
children
rev   line source
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1 /* Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by
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3 * Björnsen Beratende Ingenieure GmbH
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4 * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
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5 *
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6 * This file is Free Software under the GNU AGPL (>=v3)
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7 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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8 * documentation coming with Dive4Elements River for details.
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9 */
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10
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11 package org.dive4elements.river.importer.uinfo.parsers;
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12
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13 import java.io.File;
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14 import java.util.ArrayList;
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15 import java.util.EnumMap;
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16 import java.util.List;
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17 import java.util.regex.Matcher;
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18 import java.util.regex.Pattern;
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19
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20 import org.apache.log4j.Logger;
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21 import org.dive4elements.river.importer.Config;
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22 import org.dive4elements.river.importer.ImportRiver;
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23 import org.dive4elements.river.importer.common.AbstractParser;
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24 import org.dive4elements.river.importer.common.ParsingState;
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25 import org.dive4elements.river.importer.uinfo.importitem.SalixKmLineImport;
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26 import org.dive4elements.river.importer.uinfo.importitem.SalixSeriesImport;
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27 import org.dive4elements.river.model.uinfo.Salix;
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28 import org.dive4elements.river.model.uinfo.SalixValue;
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29
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30 /**
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31 * Reads and parses a salix file
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32 *
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33 * @author Matthias Schäfer
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34 *
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35 */
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36 public class SalixParser extends AbstractParser<Salix, SalixValue, SalixKmLineImport, SalixSeriesImport> {
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37
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38 /***** FIELDS *****/
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39
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40 private static final Logger log = Logger.getLogger(SalixParser.class);
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41
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63c086139391 Salix-Linie -> Iota
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42 private static final String IMPORT_FILENAME = "Iota.csv";
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43
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44 private static final Pattern META_FIRST = Pattern.compile("^#\\sIota.*", Pattern.CASE_INSENSITIVE);
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45
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46 private static final Pattern META_EVALUATOR = Pattern.compile("^#\\sAuswerter:\\s*([^;]*).*", Pattern.CASE_INSENSITIVE);
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47
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48 private enum ColTitlePattern {
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49 FACTOR("Iota\\s*\\[(.*)\\].*"), //
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50 MWMNW("\\(MW-MNW\\).*\\[(.*)\\].*");
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51
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52 private final Pattern pattern;
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53
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54 ColTitlePattern(final String regexp) {
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55 this.pattern = Pattern.compile(regexp, Pattern.CASE_INSENSITIVE);
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56 }
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57
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58 public Pattern getPattern() {
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59 return this.pattern;
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60 }
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61 }
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62
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63 private final EnumMap<ColTitlePattern, Integer> cols;
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64
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65 private final EnumMap<ColTitlePattern, String> units;
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66
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67
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68 /***** CONSTRUCTORS *****/
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69
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70 public SalixParser(final File importPath, final File rootRelativePath, final ImportRiver river) {
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71 super(importPath, rootRelativePath, river);
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72 this.cols = new EnumMap<>(ColTitlePattern.class);
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73 this.units = new EnumMap<>(ColTitlePattern.class);
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74 }
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75
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76 /***** METHODS *****/
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77
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78 @Override
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79 protected Logger getLog() {
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80 return log;
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81 }
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82
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83 /**
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84 * Whether this import type shall be skipped
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85 */
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86 public static boolean shallSkip() {
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87 return Config.INSTANCE.skipUInfoSalix();
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88 }
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89
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90 /**
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91 * Creates a list of parsers for all salix import files in a directory
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92 */
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93 public static List<SalixParser> createParsers(final File importDir, final File relativeDir, final ImportRiver river) {
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94 final List<SalixParser> parsers = new ArrayList<>();
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95 final File importFile = new File(importDir, IMPORT_FILENAME);
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96 if (importFile.exists())
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97 parsers.add(new SalixParser(importFile, new File(relativeDir, IMPORT_FILENAME), river));
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98 return parsers;
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99 }
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100
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101 @Override
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102 protected SalixSeriesImport createSeriesImport(final String filename) {
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103 return new SalixSeriesImport(filename);
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104 }
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105
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106 @Override
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107 protected boolean handleMetaOther() {
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108 if (handleMetaFirst())
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109 return true;
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110 else if (handleMetaEvaluator())
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111 return true;
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112 else
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113 return false;
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114 }
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115
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116 private boolean handleMetaFirst() {
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117 final Matcher m = META_FIRST.matcher(this.currentLine);
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118 if (m.matches()) {
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119 this.metaPatternsMatched.add(META_FIRST);
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120 return true;
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121 }
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122 return false;
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123 }
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124
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125 private boolean handleMetaEvaluator() {
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126 final Matcher m = META_EVALUATOR.matcher(this.currentLine);
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127 if (m.matches()) {
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128 this.metaPatternsMatched.add(META_EVALUATOR);
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129 this.seriesHeader.setEvaluationBy(parseMetaInfo(m.group(1).trim()));
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130 return true;
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131 }
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132 return false;
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133 }
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134
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135 @Override
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136 protected boolean handleMetaColumnTitles() {
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137 if (!super.handleMetaColumnTitles())
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138 return false;
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139 for (final ColTitlePattern col : ColTitlePattern.values()) {
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140 this.cols.put(col, -1);
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141 this.units.put(col, "");
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142 }
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143 for (int i = 1; i <= this.columnTitles.size() - 1; i++) {
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144 for (final ColTitlePattern col : ColTitlePattern.values()) {
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145 final Matcher m = col.getPattern().matcher(this.columnTitles.get(i));
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146 if (m.matches()) {
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147 this.cols.put(col, i);
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148 this.units.put(col, m.group(1));
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149 break;
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150 }
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151 }
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152 }
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153 if ((this.cols.get(ColTitlePattern.FACTOR) < 0) || (this.cols.get(ColTitlePattern.MWMNW) < 0)) {
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154 logLineError("Column of the iota value and/or mnw-mw-diff could not be identified");
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155 this.headerParsingState = ParsingState.STOP;
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156 return true;
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157 }
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158 if (!this.units.get(ColTitlePattern.FACTOR).equals("m") || !this.units.get(ColTitlePattern.MWMNW).equals("m")) {
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159 logLineError("Column of the iota value and/or mnw-mw-diff have unsupported units");
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160 this.headerParsingState = ParsingState.STOP;
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161 }
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162 return true;
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163 }
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164
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165 @Override
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166 protected SalixKmLineImport createKmLineImport(final Double km, final String[] values) {
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167 final Number factor = parseDoubleCheckNull(values, this.cols.get(ColTitlePattern.FACTOR));
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168 if ((factor == null) || Double.isNaN(factor.doubleValue())) {
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169 logLineWarning(INVALID_VALUE_ERROR_FORMAT, "iota");
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170 return null;
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171 }
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172 final Number mnwmw = parseDoubleCheckNull(values, this.cols.get(ColTitlePattern.MWMNW));
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173 if ((mnwmw == null) || Double.isNaN(mnwmw.doubleValue())) {
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174 logLineWarning(INVALID_VALUE_ERROR_FORMAT, "MNW-MW-diff");
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175 return null;
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176 }
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177 return new SalixKmLineImport(km, factor.doubleValue(), mnwmw.doubleValue());
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178 }
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179 }
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