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vik- 174 : added min string length to language detection

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jmillman 2013-09-13 17:12:50 -04:00
parent 47ce10ad90
commit 6b7df1ae47
2 changed files with 52 additions and 45 deletions
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5
KeywordSearch/src/org/sleuthkit/autopsy/keywordsearch/TextLanguageIdentifier.java
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@ -13,8 +13,9 @@ import org.sleuthkit.datamodel.AbstractFile;
public interface TextLanguageIdentifier { public interface TextLanguageIdentifier {
/** /**
* attempts to identify the language of the given String and add it to the black board for the given {@code AbstractFile} * attempts to identify the language of the given String and add it to the
* as a TSK_TEXT_LANGUAGE attribute on a TSK_GEN_INFO artifact. * black board for the given {@code AbstractFile} as a TSK_TEXT_LANGUAGE
* attribute on a TSK_GEN_INFO artifact.
* *
* @param extracted the String whose language is to be identified * @param extracted the String whose language is to be identified
* @param sourceFile the AbstractFile the string is extracted from. * @param sourceFile the AbstractFile the string is extracted from.

14
KeywordSearch/src/org/sleuthkit/autopsy/keywordsearch/TikaLanguageIdentifier.java
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@ -12,7 +12,8 @@ import org.sleuthkit.datamodel.BlackboardAttribute;
import org.sleuthkit.datamodel.TskCoreException; import org.sleuthkit.datamodel.TskCoreException;
/** /**
*TextLanguageIdentifier implementation based on a wrapped Tike LanguageIdentifier * TextLanguageIdentifier implementation based on a wrapped Tike
* LanguageIdentifier
* *
* *
* @author jmillman * @author jmillman
@ -20,10 +21,11 @@ import org.sleuthkit.datamodel.TskCoreException;
public class TikaLanguageIdentifier implements TextLanguageIdentifier { public class TikaLanguageIdentifier implements TextLanguageIdentifier {
private static final Logger logger = Logger.getLogger(TikaLanguageIdentifier.class.getName()); private static final Logger logger = Logger.getLogger(TikaLanguageIdentifier.class.getName());
private static final int MIN_STRING_LENGTH = 1000;
@Override @Override
public void addLanguageToBlackBoard(String extracted, AbstractFile sourceFile) { public void addLanguageToBlackBoard(String extracted, AbstractFile sourceFile) {
if (extracted.length() > MIN_STRING_LENGTH) {
org.apache.tika.language.LanguageIdentifier li = new org.apache.tika.language.LanguageIdentifier(extracted); org.apache.tika.language.LanguageIdentifier li = new org.apache.tika.language.LanguageIdentifier(extracted);
logger.log(Level.INFO, sourceFile.getName() + " detected language: " + li.getLanguage() logger.log(Level.INFO, sourceFile.getName() + " detected language: " + li.getLanguage()
@ -46,7 +48,11 @@ public class TikaLanguageIdentifier implements TextLanguageIdentifier {
/* //attempt to verify that artifact with attribute was created
}else{
logger.info("extracted text too short, skipping language detection on " + sourceFile.getName());
}
} /* //attempt to verify that artifact with attribute was created
ArrayList<BlackboardArtifact> arts; ArrayList<BlackboardArtifact> arts;
@ -66,5 +72,5 @@ public class TikaLanguageIdentifier implements TextLanguageIdentifier {
} catch (TskCoreException ex) { } catch (TskCoreException ex) {
Exceptions.printStackTrace(ex); Exceptions.printStackTrace(ex);
}*/ }*/
}
} }