Examples of org.apache.jackrabbit.oak.api.Blob

org.apache.jackrabbit.oak.api.Blob
Immutable representation of a binary value of finite length.
Two blobs are considered equal in terms of {@link Object#equals(Object)}if they contain the same sequences of bytes. Implementations can optimize the equality checks by using strong hash codes or other similar means as long as they comply with the above definition of equality.
Due to their nature blobs should not be used as keys in hash tables. To highlight that and to ensure semantic correctness of the equality contract across different blob implementations, the {@link #hashCode()}method of all blob instances should return zero.


    private PropertyState compact(PropertyState property) {
        String name = property.getName();
        Type<?> type = property.getType();
        if (type == BINARY) {
            Blob blob = compact(property.getValue(Type.BINARY));
            return BinaryPropertyState.binaryProperty(name, blob);
        } else if (type == BINARIES) {
            List<Blob> blobs = new ArrayList<Blob>();
            for (Blob blob : property.getValue(BINARIES)) {
                blobs.add(compact(blob));

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    @Test
    public void getStream() throws RepositoryException, IOException {
        byte[] bytes = "just a test".getBytes();
        Binary binary = new TestBinary(bytes);
        Blob blob = new BinaryBasedBlob(binary);


        assertEquals(bytes.length, blob.length());


        InputStream expected = binary.getStream();
        InputStream actual = blob.getNewStream();
        try {
            for (int e = expected.read(); e != -1; e = expected.read()) {
                assertEquals(e, actual.read());
            }
            assertEquals(-1, actual.read());

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        }
    }


    @Test
    public void getStreamWithError() throws IOException {
        Blob blob = new BinaryBasedBlob(new FailingBinary());


        assertEquals(-1, blob.length());
        InputStream ins = blob.getNewStream();
        try {
            ins.read();
            fail();
        } catch (IOException ignored) {
        } finally {

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    private void checkRandomStreamRecord(int size) throws IOException {
        byte[] source = new byte[size];
        random.nextBytes(source);


        Blob value = writer.writeStream(new ByteArrayInputStream(source));
        InputStream stream = value.getNewStream();
        try {
            byte[] b = new byte[349]; // prime number
            int offset = 0;
            for (int n = stream.read(b); n != -1; n = stream.read(b)) {
                for (int i = 0; i < n; i++) {

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        assertFalse(xx.exists());
    }


    @Test
    public void testBlob() throws CommitFailedException, IOException {
        Blob expected = new StringBasedBlob("test blob");
        root.getTree("/x").setProperty("blob", expected);
        root.commit();


        Blob actual = root.getTree("/x").getProperty("blob").getValue(Type.BINARY);
        assertEquals(expected, actual);


        assertTrue(expected.getNewStream().available() >= 0);
        assertTrue(actual.getNewStream().available() >= 0);
    }

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        store = new FileStore(directory, 1, memoryMapping);
        SegmentNodeState base = store.getHead();
        SegmentNodeBuilder builder = base.builder();
        byte[] data = new byte[10 * 1024 * 1024];
        new Random().nextBytes(data);
        Blob blob = builder.createBlob(new ByteArrayInputStream(data));
        builder.setProperty("foo", blob);
        store.setHead(base, builder.getNodeState());
        store.flush();
        store.setHead(store.getHead(), base);
        store.close();

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        log.setText(sb.toString());
    }


    private String toString(PropertyState ps, int index, String tarFile) {
        if (ps.getType().tag() == PropertyType.BINARY) {
            Blob b = ps.getValue(Type.BINARY, index);
            String info = "<";
            info += b.getClass().getSimpleName() + ";";
            info += "ref:" + b.getReference() + ";";
            info += "id:" + b.getContentIdentity() + ";";
            info += FileUtils.byteCountToDisplaySize(b.length()) + ">";
            for (SegmentId sid : SegmentBlob.getBulkSegmentIds(b)) {
                info += newline + "        Bulk Segment Id " + sid;
                String f = getFile(sid);
                if (!f.equals(tarFile)) {
                    info += " in " + f;

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                    localPaths.add(path + "@" + ps + " [SegmentPropertyState@"
                            + recordId + "]");
                }
                if (ps.getType().tag() == PropertyType.BINARY) {
                    for (int i = 0; i < ps.count(); i++) {
                        Blob b = ps.getValue(Type.BINARY, i);
                        for (SegmentId sbid : SegmentBlob.getBulkSegmentIds(b)) {
                            UUID bid = new UUID(sbid.getMostSignificantBits(),
                                    sbid.getLeastSignificantBits());
                            if (!bid.equals(id) && uuids.contains(bid)) {
                                localPaths.add(path + "@" + ps

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        return r.id;
    }


    @Override
    public long getLength(String blobId) throws MicroKernelException {
        Blob blob = blobs.get(blobId);
        if (blob != null) {
            return blob.length();
        } else {
            throw new MicroKernelException("Blob not found: " + blobId);
        }
    }

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    }


    @Override
    public int read(String blobId, long pos, byte[] buff, int off, int length)
            throws MicroKernelException {
        Blob blob = blobs.get(blobId);
        if (blob != null) {
            try {
                InputStream stream = blob.getNewStream();
                try {
                    ByteStreams.skipFully(stream, pos);
                    int read = stream.read(buff, off, length);
                    return read < 0 ? 0 : read;
                } finally {

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