Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/importer/parsers/AnnotationsParser.java @ 1211:f08fe480092c

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Moved file parsers to separate package. flys-backend/trunk@2337 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Fri, 15 Jul 2011 13:07:45 +0000
parents
children c5c48f52dc7b
rev   line source
1211
f08fe480092c Moved file parsers to separate package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
1 package de.intevation.flys.importer.parsers;
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2
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3 import java.util.HashMap;
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4 import java.util.TreeSet;
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5 import java.util.List;
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6 import java.util.ArrayList;
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7
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8 import java.io.IOException;
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9 import java.io.File;
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10 import java.io.LineNumberReader;
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11 import java.io.InputStreamReader;
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12 import java.io.FileInputStream;
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13
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14 import java.math.BigDecimal;
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15
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16 import org.apache.log4j.Logger;
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17
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18 import de.intevation.flys.utils.FileTools;
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19
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20 import de.intevation.flys.importer.ImportAnnotation;
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21 import de.intevation.flys.importer.ImportRange;
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22 import de.intevation.flys.importer.ImportEdge;
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23 import de.intevation.flys.importer.ImportAnnotationType;
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24 import de.intevation.flys.importer.ImportAttribute;
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25 import de.intevation.flys.importer.ImportPosition;
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26
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27 public class AnnotationsParser
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28 {
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29 private static Logger log = Logger.getLogger(AnnotationsParser.class);
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30
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31 public static final String ENCODING = "ISO-8859-1";
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32
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33 public static final String [] TO_SCAN = {
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34 "Basisdaten",
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35 "Streckendaten"
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36 };
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37
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38 protected HashMap<String, ImportAttribute> attributes;
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39 protected HashMap<String, ImportPosition> positions;
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40 protected TreeSet<ImportAnnotation> annotations;
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41 protected AnnotationClassifier classifier;
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42
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43 public AnnotationsParser() {
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44 this(null);
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45 }
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46
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47 public AnnotationsParser(AnnotationClassifier classifier) {
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48 attributes = new HashMap<String, ImportAttribute>();
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49 positions = new HashMap<String, ImportPosition>();
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50 annotations = new TreeSet<ImportAnnotation>();
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51 this.classifier = classifier;
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52 }
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53
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54 public void parseFile(File file) throws IOException {
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55 log.info("parsing km file: '" + file + "'");
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56
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57 ImportAnnotationType defaultIAT = null;
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58
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59 if (classifier != null) {
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60 defaultIAT = classifier.classifyFile(
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61 file.getName(),
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62 classifier.getDefaultType());
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63 }
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64
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65 LineNumberReader in = null;
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66 try {
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67 in =
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68 new LineNumberReader(
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69 new InputStreamReader(
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70 new FileInputStream(file), ENCODING));
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71
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72 String line = null;
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73 while ((line = in.readLine()) != null) {
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74 if ((line = line.trim()).length() == 0
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75 || line.startsWith("*")) {
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76 continue;
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77 }
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78
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79 String [] parts = line.split("\\s*;\\s*");
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80
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81 if (parts.length < 3) {
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82 log.warn("not enough columns in line "
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83 + in.getLineNumber());
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84 continue;
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85 }
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86
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87 ImportPosition position = positions.get(parts[0]);
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88 if (position == null) {
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89 position = new ImportPosition(parts[0]);
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90 positions.put(parts[0], position);
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91 }
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92
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93 ImportAttribute attribute = attributes.get(parts[1]);
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94 if (attribute == null) {
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95 attribute = new ImportAttribute(parts[1]);
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96 attributes.put(parts[1], attribute);
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97 }
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98
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99 String [] r = parts[2].replace(",", ".").split("\\s*#\\s*");
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100
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101 BigDecimal from, to;
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102
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103 try {
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104 from = new BigDecimal(r[0]);
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105 to = r.length < 2 ? null : new BigDecimal(r[1]);
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106 if (to != null && from.compareTo(to) > 0) {
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107 BigDecimal t = from; from = to; to = t;
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108 }
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109 }
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110 catch (NumberFormatException nfe) {
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111 log.warn("invalid number in line " + in.getLineNumber());
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112 continue;
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113 }
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114
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115 ImportEdge edge = null;
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116
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117 if (parts.length == 4) { // Only 'Unterkante'
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118 try {
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119 edge = new ImportEdge(
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120 null,
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121 new BigDecimal(parts[3].trim().replace(',', '.')));
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122 }
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123 catch (NumberFormatException nfe) {
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124 log.warn("cannot parse 'Unterkante' in line " +
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125 in.getLineNumber());
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126 }
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127 }
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128 else if (parts.length > 4) { // 'Unterkante' and 'Oberkante'
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129 String bottom = parts[3].trim().replace(',', '.');
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130 String top = parts[4].trim().replace(',', '.');
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131 try {
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132 BigDecimal b = bottom.length() == 0
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133 ? null
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134 : new BigDecimal(bottom);
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135 BigDecimal t = top.length() == 0
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136 ? null
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137 : new BigDecimal(top);
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138 edge = new ImportEdge(t, b);
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139 }
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140 catch (NumberFormatException nfe) {
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141 log.warn(
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142 "cannot parse 'Unterkante' or 'Oberkante' in line "
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143 + in.getLineNumber());
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144 }
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145 }
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146
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147 ImportRange range = new ImportRange(from, to);
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148
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149 ImportAnnotationType type = classifier != null
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150 ? classifier.classifyDescription(line, defaultIAT)
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151 : null;
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152
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153 ImportAnnotation annotation = new ImportAnnotation(
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154 attribute, position, range, edge, type);
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155
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156 if (!annotations.add(annotation)) {
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157 log.warn("duplicated annotation '" + parts[0] +
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158 "' in line " + in.getLineNumber());
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159 }
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160 }
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161 }
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162 finally {
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163 if (in != null) {
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164 in.close();
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165 }
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166 }
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167 }
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168
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169 public void parse(File root) throws IOException {
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170
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171 for (String toScan: TO_SCAN) {
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172 File directory = FileTools.repair(new File(root, toScan));
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173 if (!directory.isDirectory()) {
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174 log.warn("'" + directory + "' is not a directory.");
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175 continue;
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176 }
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177 File [] files = directory.listFiles();
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178 if (files == null) {
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179 log.warn("cannot list directory '" + directory + "'");
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180 continue;
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181 }
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182
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183 for (File file: files) {
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184 if (file.isFile() && file.canRead()
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185 && file.getName().toLowerCase().endsWith(".km")) {
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186 parseFile(file);
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187 }
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188 }
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189 } // for all directories to scan
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190 }
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191
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192 public List<ImportAnnotation> getAnnotations() {
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193 return new ArrayList<ImportAnnotation>(annotations);
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194 }
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195 }
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196 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org