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.

                this.data = newArrayList();
            }


            this.length = data.size() * BLOB_SIZE;
            if (!data.isEmpty()) {
                Blob last = data.get(data.size() - 1);
                this.length -= BLOB_SIZE - last.length();
            }
        }

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        }


        private void flushBlob() throws IOException {
            if (blobModified) {
                int n = (int) Math.min(BLOB_SIZE, length - index * BLOB_SIZE);
                Blob b = file.createBlob(new ByteArrayInputStream(blob, 0, n));
                if (index < data.size()) {
                    data.set(index, b);
                } else {
                    checkState(index == data.size());
                    data.add(b);

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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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            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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                this.data = newArrayList();
            }


            this.length = data.size() * BLOB_SIZE;
            if (!data.isEmpty()) {
                Blob last = data.get(data.size() - 1);
                this.length -= BLOB_SIZE - last.length();
            }
        }

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        }


        private void flushBlob() throws IOException {
            if (blobModified) {
                int n = (int) Math.min(BLOB_SIZE, length - index * BLOB_SIZE);
                Blob b = file.createBlob(new ByteArrayInputStream(blob, 0, n));
                if (index < data.size()) {
                    data.set(index, b);
                } else {
                    checkState(index == data.size());
                    data.add(b);

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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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        FileStore source = new FileStore(src, 256, false);


        NodeStore store = new SegmentNodeStore(source);


        // ~100k
        Blob blob = store.createBlob(new ByteArrayInputStream(new byte[100000]));


        NodeBuilder builder = store.getRoot().builder();
        NodeBuilder c1 = builder.child("test-backup");
        c1.setProperty("blob", blob);
        NodeBuilder c2 = builder.child("test-backup2");

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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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    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, CommitInfo.EMPTY);
        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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