Java Code Examples for com.drew.metadata.Metadata#getDirectoriesOfType()

The following examples show how to use com.drew.metadata.Metadata#getDirectoriesOfType() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: XmpReaderTest.java    From metadata-extractor with Apache License 2.0 6 votes vote down vote up 
@Before
public void setUp() throws Exception
{
    Metadata metadata = new Metadata();
    List<byte[]> jpegSegments = new ArrayList<byte[]>();
    jpegSegments.add(FileUtil.readBytes("Tests/Data/withXmpAndIptc.jpg.app1.1"));
    new XmpReader().readJpegSegments(jpegSegments, metadata, JpegSegmentType.APP1);

    Collection<XmpDirectory> xmpDirectories = metadata.getDirectoriesOfType(XmpDirectory.class);

    assertNotNull(xmpDirectories);
    assertEquals(1, xmpDirectories.size());

    _directory = xmpDirectories.iterator().next();

    assertFalse(_directory.hasErrors());
}
Example 2
Source File: XmpReader.java    From metadata-extractor with Apache License 2.0 5 votes vote down vote up 
/**
 * Determine if there is an extended XMP section based on the standard XMP part.
 * The xmpNote:HasExtendedXMP attribute contains the GUID of the Extended XMP chunks.
 */
@Nullable
private static String getExtendedXMPGUID(@NotNull Metadata metadata)
{
    final Collection<XmpDirectory> xmpDirectories = metadata.getDirectoriesOfType(XmpDirectory.class);

    for (XmpDirectory directory : xmpDirectories) {
        final XMPMeta xmpMeta = directory.getXMPMeta();

        try {
            final XMPIterator itr = xmpMeta.iterator(SCHEMA_XMP_NOTES, null, null);
            if (itr == null)
                continue;

            while (itr.hasNext()) {
                final XMPPropertyInfo pi = (XMPPropertyInfo) itr.next();
                if (ATTRIBUTE_EXTENDED_XMP.equals(pi.getPath())) {
                    return pi.getValue();
                }
            }
        } catch (XMPException e) {
            // Fail silently here: we had a reading issue, not a decoding issue.
        }
    }

    return null;
}
Example 3
Source File: PngMetadataReaderTest.java    From metadata-extractor with Apache License 2.0 4 votes vote down vote up 
@Test
public void testGimpGreyscaleWithManyChunks() throws Exception
{
    TimeZone timeZone = TimeZone.getDefault();

    try {
        TimeZone.setDefault(TimeZone.getTimeZone("GMT"));

        Metadata metadata = processFile("Tests/Data/gimp-8x12-greyscale-alpha-time-background.png");
        Collection<PngDirectory> directories = metadata.getDirectoriesOfType(PngDirectory.class);

        assertNotNull(directories);
        assertEquals(6, directories.size());

        PngDirectory[] dirs = new PngDirectory[directories.size()];
        directories.toArray(dirs);

        assertEquals(PngChunkType.IHDR, dirs[0].getPngChunkType());
        assertEquals(8, dirs[0].getInt(PngDirectory.TAG_IMAGE_WIDTH));
        assertEquals(12, dirs[0].getInt(PngDirectory.TAG_IMAGE_HEIGHT));
        assertEquals(8, dirs[0].getInt(PngDirectory.TAG_BITS_PER_SAMPLE));
        assertEquals(4, dirs[0].getInt(PngDirectory.TAG_COLOR_TYPE));
        assertEquals(0, dirs[0].getInt(PngDirectory.TAG_COMPRESSION_TYPE));
        assertEquals(0, dirs[0].getInt(PngDirectory.TAG_FILTER_METHOD));
        assertEquals(0, dirs[0].getInt(PngDirectory.TAG_INTERLACE_METHOD));

        assertEquals(PngChunkType.gAMA, dirs[1].getPngChunkType());
        assertEquals(0.45455, dirs[1].getDouble(PngDirectory.TAG_GAMMA), 0.00001);

        assertEquals(PngChunkType.bKGD, dirs[2].getPngChunkType());
        assertArrayEquals(new byte[]{0, 52}, dirs[2].getByteArray(PngDirectory.TAG_BACKGROUND_COLOR));

        //noinspection ConstantConditions
        assertEquals(PngChunkType.pHYs, dirs[3].getPngChunkType());
        assertEquals(1, dirs[3].getInt(PngDirectory.TAG_UNIT_SPECIFIER));
        assertEquals(2835, dirs[3].getInt(PngDirectory.TAG_PIXELS_PER_UNIT_X));
        assertEquals(2835, dirs[3].getInt(PngDirectory.TAG_PIXELS_PER_UNIT_Y));

        assertEquals(PngChunkType.tIME, dirs[4].getPngChunkType());
        assertEquals("2013:01:01 04:08:30", dirs[4].getString(PngDirectory.TAG_LAST_MODIFICATION_TIME));

        java.util.Date modTime = dirs[4].getDate(PngDirectory.TAG_LAST_MODIFICATION_TIME);
        SimpleDateFormat formatter = new SimpleDateFormat("EE MMM DD HH:mm:ss z yyyy", Locale.US);
        formatter.setTimeZone(TimeZone.getTimeZone("GMT"));
        assertEquals("Tue Jan 01 04:08:30 GMT 2013", formatter.format(modTime));
        assertNotNull(modTime);
        assertEquals(1357013310000L, modTime.getTime());

        assertEquals(PngChunkType.iTXt, dirs[5].getPngChunkType());
        @SuppressWarnings("unchecked")
        List<KeyValuePair> pairs = (List<KeyValuePair>)dirs[5].getObject(PngDirectory.TAG_TEXTUAL_DATA);
        assertNotNull(pairs);
        assertEquals(1, pairs.size());
        assertEquals("Comment", pairs.get(0).getKey().toString());
        assertEquals("Created with GIMP", pairs.get(0).getValue().toString());
    } finally {
        TimeZone.setDefault(timeZone);
    }
}