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1 package de.mpiwg.anteater.ml.preprocessing;
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2
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3 import java.io.File;
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4 import java.io.FileWriter;
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5 import java.io.IOException;
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6 import java.io.InputStream;
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7 import java.io.StringWriter;
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8
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9 import org.apache.commons.io.IOUtils;
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10
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11 import de.mpiwg.anteater.AnteaterConfiguration;
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12 import de.mpiwg.anteater.ml.ITextParser;
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13 import de.mpiwg.anteater.text.TextInformation;
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14
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15 public abstract class DataCreator {
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16 public final static String COMPONENT_NAME = DataCreator.class.getSimpleName();
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17
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18 public final static String UNKNOWN_CLASS_SYMBOL = "?";
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19
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20 protected AnteaterConfiguration configuration;
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21 private String filenamePrefix;
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22
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23 public DataCreator(AnteaterConfiguration configuration, String filenamePrefix) {
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24 this.configuration = configuration;
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25 this.filenamePrefix = filenamePrefix;
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26 }
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27
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28 public abstract void createFileContents(TextInformation info, StringBuffer arffContents, ITextParser textParser);
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29
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30
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31 public String createARFFFile(TextInformation info, ITextParser textParser) {
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32 configuration.getLogger().logMessage(COMPONENT_NAME, "Creating location ARFF-file for " + info.getFilepath());
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33
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34
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35 File file = new File(info.getFilepath());
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36 String filename = file.getName();
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37 String fname = filenamePrefix + filename.substring(0, filename.lastIndexOf("."));
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38
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39 File analysisFile = new File(configuration.getMlPath() + File.separator + fname + ".arff");
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40 if (!analysisFile.exists()) {
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41 try {
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42 analysisFile.createNewFile();
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43 } catch (IOException e) {
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44 e.printStackTrace();
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45 return null;
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46 }
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47 }
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48 else
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49 return analysisFile.getAbsolutePath();
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50
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51 StringWriter writer = new StringWriter();
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52 InputStream stream = getClass().getResourceAsStream("template.arff");
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53 try {
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54 IOUtils.copy(stream, writer);
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55 } catch (IOException e) {
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56 e.printStackTrace();
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57 return null;
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58 }
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59
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60 StringBuffer arffContents = writer.getBuffer();
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61
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62
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63 createFileContents(info, arffContents, textParser);
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64
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65
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66 try {
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67 FileWriter filewriter = new FileWriter(analysisFile);
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68 filewriter.write(arffContents.toString());
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69 filewriter.flush();
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70 filewriter.close();
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71 } catch (IOException e) {
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72 // TODO Auto-generated catch block
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73 e.printStackTrace();
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74 }
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75
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76 return analysisFile.getAbsolutePath();
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77 }
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78 }
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