Package com.drew.metadata

Examples of com.drew.metadata.Directory

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     * @param directories Metadata Extractor {@link com.drew.metadata.Directory} instances.
     * @throws MetadataException This method does not handle exceptions from Metadata Extractor
     */   
    protected void handle(Iterator<Directory> directories) throws MetadataException {
        while (directories.hasNext()) {
            Directory directory = directories.next();
            for (int i = 0; i < handlers.length; i++) {
                if (handlers[i].supports(directory.getClass())) {
                    handlers[i].handle(directory, metadata);
                }
            }
        }
    }
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    public void testHandleDirectories() throws MetadataException {
        Metadata metadata = mock(Metadata.class);
        ImageMetadataExtractor.DirectoryHandler handler1 = mock(ImageMetadataExtractor.DirectoryHandler.class);
        ImageMetadataExtractor e = new ImageMetadataExtractor(metadata, handler1);
       
        Directory directory = new JpegCommentDirectory();
        Iterator directories = mock(Iterator.class);
        when(directories.hasNext()).thenReturn(true, false);
        when(directories.next()).thenReturn(directory);
        when(handler1.supports(JpegCommentDirectory.class)).thenReturn(true);
       
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        assertEquals("Parsing should proceed without date", null,
                metadata.get(TikaCoreProperties.CREATED));
    }
   
    public void testCopyUnknownFieldsHandler() throws MetadataException {
        Directory d = mock(Directory.class);
        Tag t1 = mock(Tag.class);
        when(t1.getTagName()).thenReturn("Image Description");
        when(t1.getDescription()).thenReturn("t1");
        Tag t2 = mock(Tag.class);
        when(t2.getTagName()).thenReturn(Metadata.KEYWORDS);
        when(t2.getDescription()).thenReturn("known");
        Tag t3 = mock(Tag.class);
        when(t3.getTagName()).thenReturn(TikaCoreProperties.DESCRIPTION.getName());
        when(t3.getDescription()).thenReturn("known");
        Iterator<Tag> tags = Arrays.asList(t1, t2, t3).iterator();
        when(d.getTagIterator()).thenReturn(tags);
        Metadata metadata = new Metadata();
        new ImageMetadataExtractor.CopyUnknownFieldsHandler().handle(d, metadata);
        assertEquals("t1", metadata.get("Image Description"));
        assertNull("keywords should be excluded from bulk copy because it is a defined field",
                metadata.get(Metadata.KEYWORDS));
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    public void testHandleDirectories() throws MetadataException {
        Metadata metadata = mock(Metadata.class);
        ImageMetadataExtractor.DirectoryHandler handler1 = mock(ImageMetadataExtractor.DirectoryHandler.class);
        ImageMetadataExtractor e = new ImageMetadataExtractor(metadata, handler1);
       
        Directory directory = new JpegCommentDirectory();
        Iterator directories = mock(Iterator.class);
        when(directories.hasNext()).thenReturn(true, false);
        when(directories.next()).thenReturn(directory);
        when(handler1.supports(JpegCommentDirectory.class)).thenReturn(true);
       
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        new ImageMetadataExtractor.ExifHandler().handle(exif, metadata);
        assertEquals("Parsing should proceed without date", null, metadata.get(DublinCore.DATE));
    }
   
    public void testCopyUnknownFieldsHandler() throws MetadataException {
        Directory d = mock(Directory.class);
        Tag t1 = mock(Tag.class);
        when(t1.getTagName()).thenReturn("Image Description");
        when(t1.getDescription()).thenReturn("t1");
        Tag t2 = mock(Tag.class);
        when(t2.getTagName()).thenReturn(Metadata.KEYWORDS);
        when(t2.getDescription()).thenReturn("known");
        Tag t3 = mock(Tag.class);
        when(t3.getTagName()).thenReturn(Metadata.DESCRIPTION);
        when(t3.getDescription()).thenReturn("known");
        Iterator<Tag> tags = Arrays.asList(t1, t2, t3).iterator();
        when(d.getTagIterator()).thenReturn(tags);
        Metadata metadata = new Metadata();
        new ImageMetadataExtractor.CopyUnknownFieldsHandler().handle(d, metadata);
        assertEquals("t1", metadata.get("Image Description"));
        assertNull("keywords should be excluded from bulk copy because it is a defined field",
                metadata.get(Metadata.KEYWORDS));
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                                         final int tiffHeaderOffset,
                                         final @NotNull Metadata metadata,
                                         final @NotNull RandomAccessReader reader) throws IOException
    {
        // Determine the camera model and makernote format
        Directory ifd0Directory = metadata.getDirectory(ExifIFD0Directory.class);

        if (ifd0Directory == null)
            return;

        String cameraMake = ifd0Directory.getString(ExifIFD0Directory.TAG_MAKE);

        final String firstThreeChars = reader.getString(makernoteOffset, 3);
        final String firstFourChars = reader.getString(makernoteOffset, 4);
        final String firstFiveChars = reader.getString(makernoteOffset, 5);
        final String firstSixChars = reader.getString(makernoteOffset, 6);
        final String firstSevenChars = reader.getString(makernoteOffset, 7);
        final String firstEightChars = reader.getString(makernoteOffset, 8);
        final String firstTwelveChars = reader.getString(makernoteOffset, 12);

        boolean byteOrderBefore = reader.isMotorolaByteOrder();

        if ("OLYMP".equals(firstFiveChars) || "EPSON".equals(firstFiveChars) || "AGFA".equals(firstFourChars)) {
            // Olympus Makernote
            // Epson and Agfa use Olympus makernote standard: http://www.ozhiker.com/electronics/pjmt/jpeg_info/
            processIFD(metadata.getOrCreateDirectory(OlympusMakernoteDirectory.class), processedIfdOffsets, makernoteOffset + 8, tiffHeaderOffset, metadata, reader);
        } else if (cameraMake != null && cameraMake.trim().toUpperCase().startsWith("NIKON")) {
            if ("Nikon".equals(firstFiveChars)) {
                /* There are two scenarios here:
                 * Type 1:                  **
                 * :0000: 4E 69 6B 6F 6E 00 01 00-05 00 02 00 02 00 06 00 Nikon...........
                 * :0010: 00 00 EC 02 00 00 03 00-03 00 01 00 00 00 06 00 ................
                 * Type 3:                  **
                 * :0000: 4E 69 6B 6F 6E 00 02 00-00 00 4D 4D 00 2A 00 00 Nikon....MM.*...
                 * :0010: 00 08 00 1E 00 01 00 07-00 00 00 04 30 32 30 30 ............0200
                 */
                switch (reader.getUInt8(makernoteOffset + 6)) {
                    case 1:
                        processIFD(metadata.getOrCreateDirectory(NikonType1MakernoteDirectory.class), processedIfdOffsets, makernoteOffset + 8, tiffHeaderOffset, metadata, reader);
                        break;
                    case 2:
                        processIFD(metadata.getOrCreateDirectory(NikonType2MakernoteDirectory.class), processedIfdOffsets, makernoteOffset + 18, makernoteOffset + 10, metadata, reader);
                        break;
                    default:
                        ifd0Directory.addError("Unsupported Nikon makernote data ignored.");
                        break;
                }
            } else {
                // The IFD begins with the first Makernote byte (no ASCII name).  This occurs with CoolPix 775, E990 and D1 models.
                processIFD(metadata.getOrCreateDirectory(NikonType2MakernoteDirectory.class), processedIfdOffsets, makernoteOffset, tiffHeaderOffset, metadata, reader);
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                                     final int tiffHeaderOffset,
                                     final @NotNull RandomAccessReader reader,
                                     final int byteCount) throws IOException
    {
        // Determine the camera model and makernote format.
        Directory ifd0Directory = _metadata.getDirectory(ExifIFD0Directory.class);

        if (ifd0Directory == null)
            return false;

        String cameraMake = ifd0Directory.getString(ExifIFD0Directory.TAG_MAKE);

        final String firstTwoChars = reader.getString(makernoteOffset, 2);
        final String firstThreeChars = reader.getString(makernoteOffset, 3);
        final String firstFourChars = reader.getString(makernoteOffset, 4);
        final String firstFiveChars = reader.getString(makernoteOffset, 5);
        final String firstSixChars = reader.getString(makernoteOffset, 6);
        final String firstSevenChars = reader.getString(makernoteOffset, 7);
        final String firstEightChars = reader.getString(makernoteOffset, 8);
        final String firstTwelveChars = reader.getString(makernoteOffset, 12);

        boolean byteOrderBefore = reader.isMotorolaByteOrder();

        if ("OLYMP".equals(firstFiveChars) || "EPSON".equals(firstFiveChars) || "AGFA".equals(firstFourChars)) {
            // Olympus Makernote
            // Epson and Agfa use Olympus makernote standard: http://www.ozhiker.com/electronics/pjmt/jpeg_info/
            pushDirectory(OlympusMakernoteDirectory.class);
            TiffReader.processIfd(this, reader, processedIfdOffsets, makernoteOffset + 8, tiffHeaderOffset);
        } else if (cameraMake != null && cameraMake.toUpperCase().startsWith("MINOLTA")) {
            // Cases seen with the model starting with MINOLTA in capitals seem to have a valid Olympus makernote
            // area that commences immediately.
            pushDirectory(OlympusMakernoteDirectory.class);
            TiffReader.processIfd(this, reader, processedIfdOffsets, makernoteOffset, tiffHeaderOffset);
        } else if (cameraMake != null && cameraMake.trim().toUpperCase().startsWith("NIKON")) {
            if ("Nikon".equals(firstFiveChars)) {
                /* There are two scenarios here:
                 * Type 1:                  **
                 * :0000: 4E 69 6B 6F 6E 00 01 00-05 00 02 00 02 00 06 00 Nikon...........
                 * :0010: 00 00 EC 02 00 00 03 00-03 00 01 00 00 00 06 00 ................
                 * Type 3:                  **
                 * :0000: 4E 69 6B 6F 6E 00 02 00-00 00 4D 4D 00 2A 00 00 Nikon....MM.*...
                 * :0010: 00 08 00 1E 00 01 00 07-00 00 00 04 30 32 30 30 ............0200
                 */
                switch (reader.getUInt8(makernoteOffset + 6)) {
                    case 1:
                        pushDirectory(NikonType1MakernoteDirectory.class);
                        TiffReader.processIfd(this, reader, processedIfdOffsets, makernoteOffset + 8, tiffHeaderOffset);
                        break;
                    case 2:
                        pushDirectory(NikonType2MakernoteDirectory.class);
                        TiffReader.processIfd(this, reader, processedIfdOffsets, makernoteOffset + 18, makernoteOffset + 10);
                        break;
                    default:
                        ifd0Directory.addError("Unsupported Nikon makernote data ignored.");
                        break;
                }
            } else {
                // The IFD begins with the first Makernote byte (no ASCII name).  This occurs with CoolPix 775, E990 and D1 models.
                pushDirectory(NikonType2MakernoteDirectory.class);
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        extract(new SequentialByteArrayReader(segmentBytes), metadata);
    }

    public void extract(@NotNull SequentialReader reader, @NotNull Metadata metadata)
    {
        final Directory directory = metadata.getOrCreateDirectory(AdobeJpegDirectory.class);
        try {
            reader.setMotorolaByteOrder(false);

            if (!reader.getString(5).equals("Adobe")) {
                directory.addError("Invalid Adobe JPEG data header.");
                return;
            }

            directory.setInt(AdobeJpegDirectory.TAG_DCT_ENCODE_VERSION, reader.getUInt16());
            directory.setInt(AdobeJpegDirectory.TAG_APP14_FLAGS0, reader.getUInt16());
            directory.setInt(AdobeJpegDirectory.TAG_APP14_FLAGS1, reader.getUInt16());
            directory.setInt(AdobeJpegDirectory.TAG_COLOR_TRANSFORM, reader.getInt8());
        } catch (IOException ex) {
            directory.addError("IO exception processing data: " + ex.getMessage());
        }
    }
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        validate(JpegMetadataReader.readMetadata(new FileInputStream((new File("Tests/Data/withExif.jpg")))));
    }

    private void validate(Metadata metadata)
    {
        Directory directory = metadata.getDirectory(ExifSubIFDDirectory.class);
        assertNotNull(directory);
        assertEquals("80", directory.getString(ExifSubIFDDirectory.TAG_ISO_EQUIVALENT));
    }
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public class ExifDirectoryTest
{
    @Test
    public void testGetDirectoryName() throws Exception
    {
        Directory subIFDDirectory = new ExifSubIFDDirectory();
        Directory ifd0Directory = new ExifIFD0Directory();
        Directory thumbDirectory = new ExifThumbnailDirectory();

        assertFalse(subIFDDirectory.hasErrors());
        assertFalse(ifd0Directory.hasErrors());
        assertFalse(thumbDirectory.hasErrors());

        assertEquals("Exif IFD0", ifd0Directory.getName());
        assertEquals("Exif SubIFD", subIFDDirectory.getName());
        assertEquals("Exif Thumbnail", thumbDirectory.getName());
    }
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Related Classes of com.drew.metadata.Directory

  • ch.entwine.weblounge.common.impl.content.image.ImageMetadataUtils
  • com.drew.imaging.ImageMetadataReader
  • com.drew.imaging.jpeg.JpegMetadataReader
  • com.drew.imaging.jpeg.JpegMetadataReaderTest
  • com.drew.imaging.jpeg.test.JpegMetadataReaderTest
  • com.drew.lang.Rational
  • com.drew.metadata.adobe.AdobeJpegReader
  • com.drew.metadata.exif.ExifDirectoryTest
  • com.drew.metadata.exif.ExifReader
  • com.drew.metadata.exif.ExifReaderTest
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