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.

            throws IOException {
        NodeBuilder file = addChild(node, name, JcrConstants.NT_FILE);
        NodeBuilder content = addChild(file, JcrConstants.JCR_CONTENT,
                JcrConstants.NT_RESOURCE);
        content.setProperty(JcrConstants.JCR_MIMETYPE, "text/plain");
        Blob blob = store.createBlob(new ByteArrayInputStream("Apache Oak".getBytes()));
        content.setProperty(JcrConstants.JCR_DATA, blob);
        return file;
    }

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        nodeStore = getNodeStore(dbs);


        //Test for Blob which get inlined
        byte[] data = new byte[fds.getMinRecordLength()-2];
        new Random().nextBytes(data);
        Blob b1 = testCreateAndRead(nodeStore.createBlob(new ByteArrayInputStream(data)));
        assertTrue(b1 instanceof SegmentBlob);
        assertNull(((SegmentBlob) b1).getBlobId());


        //Test for Blob which need to be pushed to BlobStore
        byte[] data2 = new byte[Segment.MEDIUM_LIMIT + 1];
        new Random().nextBytes(data2);
        Blob b2 = testCreateAndRead(nodeStore.createBlob(new ByteArrayInputStream(data2)));
        assertTrue(b2 instanceof SegmentBlob);
        assertNotNull(b2.getReference());
        InputStream is = dbs.getInputStream(((SegmentBlob) b2).getBlobId());
        assertNotNull(IOUtils.contentEquals(new ByteArrayInputStream(data2), is));
        is.close();
    }

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        nodeStore = getNodeStore(dbs);


        //Test for Blob which get inlined
        byte[] data = new byte[fds.getMinRecordLength()-2];
        new Random().nextBytes(data);
        Blob b1 = testCreateAndRead(nodeStore.createBlob(new ByteArrayInputStream(data)));
        assertTrue(b1 instanceof SegmentBlob);
        assertNull(((SegmentBlob) b1).getBlobId());


        //Test for Blob which need to be pushed to BlobStore
        byte[] data2 = new byte[Segment.MEDIUM_LIMIT + 1];
        new Random().nextBytes(data2);
        Blob b2 = testCreateAndRead(nodeStore.createBlob(new ByteArrayInputStream(data2)));
        assertTrue(b2 instanceof SegmentBlob);
        assertNotNull(b2.getReference());
        assertNotNull(dbs.getRecordIfStored(new DataIdentifier(((SegmentBlob) b2).getBlobId())));
    }

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            throws IOException {
        NodeBuilder file = addChild(node, name, JcrConstants.NT_FILE);
        NodeBuilder content = addChild(file, JcrConstants.JCR_CONTENT,
                JcrConstants.NT_RESOURCE);
        content.setProperty(JcrConstants.JCR_MIMETYPE, "text/plain");
        Blob blob = store.createBlob(new ByteArrayInputStream("Apache Oak".getBytes()));
        content.setProperty(JcrConstants.JCR_DATA, blob);
        return file;
    }

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        PropertyState p;
        if (reader.matches('[')) {
            p = DocumentPropertyState.readArrayProperty("x", nodeStore, reader);
            if (p.getType() == Type.BINARIES) {
                for (int i = 0; i < p.count(); i++) {
                    Blob b = p.getValue(Type.BINARY, i);
                    batch.add(b);
                }
            }
        } else {
            p = DocumentPropertyState.readProperty("x", nodeStore, reader);
            if (p.getType() == Type.BINARY) {
                Blob b = p.getValue(Type.BINARY);
                batch.add(b);
            }
        }
    }

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    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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    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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            throw new RepositoryException(e);
        }
    }


    private ValueImpl createBinaryValue(InputStream value) throws IOException {
        Blob blob = blobFactory.createBlob(value);
        return new ValueImpl(BinaryPropertyState.binaryProperty("", blob), namePathMapper);
    }

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    public void test() throws Exception {
        DocumentNodeStore s = new DocumentMK.Builder().getNodeStore();
        NodeBuilder a = s.getRoot().builder();
        HashSet<String> set = new HashSet<String>();
        for (int i = 0; i < 100; i++) {
            Blob b = a.createBlob(randomStream(i, 10));
            set.add(b.toString());
            a.child("c" + i).setProperty("x", b);
        }
        s.merge(a, EmptyHook.INSTANCE, null);
        Iterator<Blob> it = s.getReferencedBlobsIterator();
        while (it.hasNext()) {
            Blob b = it.next();
            set.remove(b.toString());
        }
        assertTrue(set.isEmpty());
        s.dispose();
    }

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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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