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Revert "Optimization and Bug fix - Make Tika use AbstractFile mimetype instead of recomputing"

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Richard Cordovano 2019-02-13 15:43:04 -05:00 committed by GitHub
parent 417659bb84
commit 3c3d92f03c
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 14 additions and 26 deletions
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26
Core/src/org/sleuthkit/autopsy/textextractors/TikaTextExtractor.java
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@ -50,7 +50,6 @@ import org.apache.tika.parser.ParsingReader;
import org.apache.tika.parser.microsoft.OfficeParserConfig;
import org.apache.tika.parser.ocr.TesseractOCRConfig;
import org.apache.tika.parser.pdf.PDFParserConfig;
import org.apache.tika.mime.MediaType;
import org.openide.util.NbBundle;
import org.openide.modules.InstalledFileLocator;
import org.openide.util.Lookup;
@ -126,7 +125,7 @@ final class TikaTextExtractor implements TextExtractor {
private final ExecutorService executorService = Executors.newSingleThreadExecutor(tikaThreadFactory);
private static final String SQLITE_MIMETYPE = "application/x-sqlite3";
private final AutoDetectParser parser;
private final AutoDetectParser parser = new AutoDetectParser();
private final Content content;
private boolean tesseractOCREnabled;
@ -146,23 +145,12 @@ final class TikaTextExtractor implements TextExtractor {
public TikaTextExtractor(Content content) {
this.content = content;
parser = new AutoDetectParser();
if (content instanceof AbstractFile) {
AbstractFile file = (AbstractFile) content;
if (file.getMIMEType() != null && !file.getMIMEType().isEmpty()) {
//Force Tika to use our pre-computed mime type during detection
parser.setDetector((InputStream inStream, Metadata metaData)
-> MediaType.parse(file.getMIMEType()));
}
}
}
/**
* If Tesseract has been installed and is set to be used through
* configuration, then ocr is enabled. OCR can only currently be run on 64
* bit Windows OS.
* configuration, then ocr is enabled. OCR can only currently be run on
* 64 bit Windows OS.
*
* @return Flag indicating if OCR is set to be used.
*/
@ -434,11 +422,11 @@ final class TikaTextExtractor implements TextExtractor {
*/
@Override
public boolean isSupported() {
if (!(content instanceof AbstractFile)) {
if(!(content instanceof AbstractFile)) {
return false;
}
String detectedType = ((AbstractFile) content).getMIMEType();
String detectedType = ((AbstractFile)content).getMIMEType();
if (detectedType == null
|| BINARY_MIME_TYPES.contains(detectedType) //any binary unstructured blobs (string extraction will be used)
|| ARCHIVE_MIME_TYPES.contains(detectedType)
@ -497,11 +485,11 @@ final class TikaTextExtractor implements TextExtractor {
if (context != null) {
ImageConfig configInstance = context.lookup(ImageConfig.class);
if (configInstance != null) {
if (Objects.nonNull(configInstance.getOCREnabled())) {
if(Objects.nonNull(configInstance.getOCREnabled())) {
this.tesseractOCREnabled = configInstance.getOCREnabled();
}
if (Objects.nonNull(configInstance.getOCRLanguages())) {
if(Objects.nonNull(configInstance.getOCRLanguages())) {
this.languagePacks = formatLanguagePacks(configInstance.getOCRLanguages());
}
}