Mercurial > dive4elements > river
annotate flys-backend/src/main/java/de/intevation/flys/importer/parsers/WaterlevelDifferencesParser.java @ 3940:aed7aba93718
Improved logging and stabilized minfo import.
flys-backend/trunk@5500 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Tue, 18 Sep 2012 04:20:33 +0000 |
parents | a1402c16152f |
children | f63b39799d2d |
rev | line source |
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a1402c16152f
Added a parser and importer classes used to import waterlevel differences.
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1 package de.intevation.flys.importer.parsers; |
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2 |
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3 import java.io.File; |
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4 import java.io.IOException; |
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5 import java.text.NumberFormat; |
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6 import java.text.ParseException; |
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7 import java.util.ArrayList; |
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8 import java.util.List; |
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9 import java.util.regex.Matcher; |
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10 import java.util.regex.Pattern; |
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11 |
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12 import org.apache.log4j.Logger; |
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13 |
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14 import de.intevation.flys.importer.ImportUnit; |
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15 import de.intevation.flys.importer.ImportWaterlevelDifference; |
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16 import de.intevation.flys.importer.ImportWaterlevelDifferenceColumn; |
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17 import de.intevation.flys.importer.ImportWaterlevelDifferenceValue; |
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18 |
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19 |
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20 public class WaterlevelDifferencesParser extends LineParser { |
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21 |
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22 private static final Logger log = |
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23 Logger.getLogger(WaterlevelDifferencesParser.class); |
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24 |
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25 private static final NumberFormat nf = |
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26 NumberFormat.getInstance(DEFAULT_LOCALE); |
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27 |
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28 public static final Pattern META_UNIT = |
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29 Pattern.compile("^Einheit: \\[(.*)\\].*"); |
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30 |
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31 |
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32 private List<ImportWaterlevelDifference> differences; |
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33 |
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34 private ImportWaterlevelDifferenceColumn[] columns; |
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35 |
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36 private ImportWaterlevelDifference current; |
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37 |
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38 |
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39 public WaterlevelDifferencesParser() { |
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40 differences = new ArrayList<ImportWaterlevelDifference>(); |
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41 } |
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42 |
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43 |
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44 public List<ImportWaterlevelDifference> getDifferences() { |
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45 return differences; |
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46 } |
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47 |
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48 |
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49 @Override |
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50 public void parse(File file) throws IOException { |
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51 current = new ImportWaterlevelDifference(file.getName()); |
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52 |
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53 super.parse(file); |
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54 } |
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55 |
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56 |
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57 @Override |
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58 protected void reset() { |
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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 finish() { |
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64 if (columns != null && current != null) { |
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65 for (ImportWaterlevelDifferenceColumn col: columns) { |
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66 current.addValue(col); |
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67 } |
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68 |
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69 differences.add(current); |
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70 } |
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71 |
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72 current = null; |
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73 columns = null; |
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74 } |
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75 |
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76 @Override |
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77 protected void handleLine(String line) { |
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78 if (line.startsWith(START_META_CHAR)) { |
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79 handleMetaLine(stripMetaLine(line)); |
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80 } |
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81 else { |
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82 handleDataLine(line); |
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83 } |
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84 } |
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85 |
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86 |
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87 private void handleMetaLine(String meta) { |
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88 if (handleMetaUnit(meta)) { |
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89 return; |
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90 } |
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91 else { |
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92 handleMetaColumnNames(meta); |
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93 } |
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94 } |
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95 |
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96 |
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97 private boolean handleMetaUnit(String meta) { |
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98 Matcher m = META_UNIT.matcher(meta); |
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99 |
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100 if (m.matches()) { |
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101 String unit = m.group(1); |
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102 log.debug("Found unit: '" + unit + "'"); |
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103 |
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104 current.setUnit(new ImportUnit(unit)); |
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105 |
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106 return true; |
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107 } |
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108 |
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109 return false; |
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110 } |
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111 |
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112 |
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113 private boolean handleMetaColumnNames(String meta) { |
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114 Pattern META_COLUMN_NAMES = Pattern.compile("Fluss-km;(.*)"); |
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115 Matcher m = META_COLUMN_NAMES.matcher(meta); |
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116 |
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117 if (m.matches()) { |
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118 String colStr = m.group(1); |
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119 String[] cols = colStr.split(SEPERATOR_CHAR); |
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120 |
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121 log.debug("Found " + cols.length + " columns."); |
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122 |
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123 initColumns(cols); |
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124 |
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125 return true; |
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126 } |
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127 |
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128 return false; |
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129 } |
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130 |
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131 |
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132 private void initColumns(String[] cols) { |
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133 columns = new ImportWaterlevelDifferenceColumn[cols.length]; |
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134 |
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135 for (int i = 0; i < cols.length; i++) { |
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136 String name = cols[i].replace("\"", ""); |
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137 |
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138 log.debug("Create new column '" + name + "'"); |
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139 columns[i] = new ImportWaterlevelDifferenceColumn(name); |
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140 } |
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141 } |
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142 |
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143 |
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144 private void handleDataLine(String line) { |
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145 String[] cols = line.split(SEPERATOR_CHAR); |
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146 |
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147 if (cols == null || cols.length < 2) { |
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148 log.warn("skip invalid waterlevel line: '" + line + "'"); |
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149 return; |
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150 } |
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151 |
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152 try { |
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153 Double station = nf.parse(cols[0]).doubleValue(); |
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154 |
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155 for (int i = 0; i < columns.length; i++) { |
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156 int idx = i+1; |
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157 |
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158 if (idx >= cols.length) { |
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159 log.warn("Insufficient column numbers: " + line); |
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160 continue; |
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161 } |
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162 |
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163 String value = cols[idx]; |
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164 |
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165 try { |
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166 columns[i].addValue(new ImportWaterlevelDifferenceValue( |
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167 station, |
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168 nf.parse(value).doubleValue() |
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169 )); |
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170 } |
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171 catch (ParseException pe) { |
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172 log.warn("Error while parsing value: '" + value + "'"); |
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173 } |
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174 } |
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175 } |
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176 catch (ParseException pe) { |
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177 log.warn("Error while parsing station: '" + line + "'"); |
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178 } |
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179 } |
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180 } |
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181 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |