Mercurial > dive4elements > river
annotate flys-backend/src/main/java/de/intevation/flys/importer/parsers/StaFileParser.java @ 5542:f3b270e5462e
Wst Parser: Another attempt to fix the order of the Q ranges.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Wed, 03 Apr 2013 20:16:01 +0200 |
parents | 6553c8e364db |
children | 33aa0d152f54 |
rev | line source |
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1211
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Moved file parsers to separate package.
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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.io.LineNumberReader; |
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6 import java.io.FileInputStream; |
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7 import java.io.InputStreamReader; |
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8 |
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9 import java.math.BigDecimal; |
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10 |
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11 import java.util.regex.Pattern; |
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12 import java.util.regex.Matcher; |
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13 |
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14 import java.util.HashMap; |
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15 import java.util.ArrayList; |
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16 |
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17 import org.apache.log4j.Logger; |
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18 |
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19 import de.intevation.flys.importer.ImportMainValueType; |
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20 import de.intevation.flys.importer.ImportMainValue; |
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21 import de.intevation.flys.importer.ImportNamedMainValue; |
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22 import de.intevation.flys.importer.ImportGauge; |
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23 |
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24 public class StaFileParser |
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25 { |
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26 private static Logger log = Logger.getLogger(StaFileParser.class); |
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27 |
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28 public static final String ENCODING = "ISO-8859-1"; |
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29 |
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30 public static final String TYPES = |
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31 System.getProperty("flys.backend.main.value.types", "QWTD"); |
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32 |
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33 public static final boolean NOT_PARSE_GAUGE_NUMBERS = |
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34 Boolean.getBoolean("flys.backend.sta.not.parse.gauge.numbers"); |
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35 |
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36 public static final Pattern QWTD_ = |
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37 Pattern.compile("\\s*([^\\s]+)\\s+([^\\s]+)\\s+([" + |
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38 Pattern.quote(TYPES) + "]).*"); |
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39 |
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40 public StaFileParser() { |
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41 } |
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42 |
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43 public boolean parse(ImportGauge gauge) throws IOException { |
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44 |
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45 File file = gauge.getStaFile(); |
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46 |
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47 log.info("parsing STA file: " + file); |
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48 LineNumberReader in = null; |
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49 try { |
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50 in = |
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51 new LineNumberReader( |
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52 new InputStreamReader( |
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53 new FileInputStream(file), ENCODING)); |
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54 |
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55 String line = in.readLine(); |
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56 |
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57 if (line == null) { |
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58 log.warn("STA file is empty."); |
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59 return false; |
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60 } |
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61 |
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62 if (line.length() < 37) { |
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63 log.warn("First line in STA file is too short."); |
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64 return false; |
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65 } |
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66 |
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67 String gaugeName = line.substring(16, 37).trim(); |
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68 |
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69 Long gaugeNumber = null; |
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parents:
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70 |
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6553c8e364db
import gauge number by default (made by S. Teichmann)
Tom Gottfried <tom@intevation.de>
parents:
3660
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71 if (!NOT_PARSE_GAUGE_NUMBERS) { |
2377
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parents:
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72 String gaugeNumberString = line.substring(0, 16).trim(); |
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parents:
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73 |
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parents:
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74 try { |
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75 gaugeNumber = Long.parseLong(gaugeNumberString); |
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Make parsing of official numbers out of STA files being enabled with new system property.
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parents:
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76 } |
d183ae164cfc
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parents:
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77 catch (NumberFormatException nfe) { |
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78 log.warn("STA: '" + gaugeNumberString + |
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79 "' is not a valid long number."); |
d183ae164cfc
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parents:
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80 } |
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81 } |
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82 |
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83 gauge.setName(gaugeName); |
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84 gauge.setOfficialNumber(gaugeNumber); |
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85 |
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86 if (log.isDebugEnabled()) { |
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87 log.debug( |
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88 "name/number: '" + gaugeName + "' '" + gaugeNumber + "'"); |
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89 } |
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90 |
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91 String [] values = line.substring(38).trim().split("\\s+", 2); |
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92 |
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93 if (values.length < 2) { |
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94 log.warn("STA: Not enough columns for aeo and datum."); |
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95 } |
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96 try { |
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97 gauge.setAeo(new BigDecimal(values[0].replace(",", "."))); |
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98 gauge.setDatum(new BigDecimal(values[1].replace(",", "."))); |
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99 } |
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100 catch (NumberFormatException nfe) { |
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101 log.warn("STA: cannot parse aeo or datum."); |
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102 return false; |
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103 } |
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104 |
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105 line = in.readLine(); |
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106 |
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107 if (line == null) { |
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108 log.warn("STA file has not enough lines"); |
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109 return false; |
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110 } |
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111 |
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112 if (line.length() < 36) { |
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backend: Mention backend warnings in importer.
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113 log.warn("STA: second line is too short"); |
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114 return false; |
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115 } |
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116 |
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117 try { |
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118 gauge.setStation( |
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119 new BigDecimal(line.substring(29, 36).trim())); |
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120 } |
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121 catch (NumberFormatException nfe) { |
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122 log.warn("STA: parsing of the datum of the gauge failed"); |
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123 return false; |
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124 } |
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125 |
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126 // overread the next six lines |
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127 for (int i = 0; i < 6; ++i) { |
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128 if ((line = in.readLine()) == null) { |
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129 log.warn("STA file is too short"); |
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130 return false; |
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131 } |
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132 } |
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133 |
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134 HashMap<String, ImportMainValueType> types = |
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135 new HashMap<String, ImportMainValueType>(); |
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136 |
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137 ArrayList<ImportNamedMainValue> namedMainValues = |
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138 new ArrayList<ImportNamedMainValue>(); |
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139 |
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140 ArrayList<ImportMainValue> mainValues = |
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141 new ArrayList<ImportMainValue>(); |
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142 |
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143 while ((line = in.readLine()) != null) { |
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144 Matcher m = QWTD_.matcher(line); |
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145 if (m.matches()) { |
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146 BigDecimal value; |
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147 try { |
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148 value = new BigDecimal(m.group(2).replace(",", ".")); |
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149 } |
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150 catch (NumberFormatException nfe) { |
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151 log.warn("STA: value not parseable in line " |
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152 + in.getLineNumber()); |
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153 continue; |
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154 } |
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155 String typeString = m.group(3); |
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156 log.debug("\t type: " + typeString); |
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157 ImportMainValueType type = types.get(typeString); |
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158 if (type == null) { |
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159 type = new ImportMainValueType(typeString); |
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160 types.put(typeString, type); |
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161 } |
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162 String name = m.group(1); |
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163 ImportNamedMainValue namedMainValue = |
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164 new ImportNamedMainValue(type, name); |
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165 namedMainValues.add(namedMainValue); |
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166 |
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167 ImportMainValue mainValue = |
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168 new ImportMainValue(gauge, namedMainValue, value); |
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169 |
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170 mainValues.add(mainValue); |
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171 } |
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172 else { |
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173 // TODO: treat as a comment |
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174 } |
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175 } |
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176 gauge.setMainValueTypes( |
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177 new ArrayList<ImportMainValueType>(types.values())); |
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178 gauge.setNamedMainValues(namedMainValues); |
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179 gauge.setMainValues(mainValues); |
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180 } |
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181 finally { |
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182 if (in != null) { |
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183 in.close(); |
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184 } |
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185 } |
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186 log.info("finished parsing STA file: " + file); |
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187 return true; |
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188 } |
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189 } |
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190 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |