Examples of org.lilyproject.repository.api.Blob

org.lilyproject.repository.api.Blob
A Blob is a {@link ValueType value type} that can be used to store arbitrarily large binary data.Besides the binary data itself, a blob holds some metadata such as the media-type and size.
Storing and retrieving data to and from the blob happens through {@link java.io.OutputStream} and{@link java.io.InputStream}.
These streams are available via the Repository through {@link Repository#getOutputStream(Blob)} and{@link Repository#getInputStream(Blob)}.
Important: to add a blob to a record, you first need to upload the data via the OutputStream. Once finished, close the OutputStream using {@link java.io.OutputStream#close()}. This will trigger the update of the {@link #setValue value} of this blob object (which will usually be a pointer to the storage locationof the blob, though for tiny blobs -- sorry for the oxymoron -- this might be the binary data itself). Once that's done, you can store the {@link Record} itself. Thus: first upload all blobs and close theirOutputStreams, then save the record. It does not matter when the blob value is set on the record object itself.

        FieldTypeEntry fieldTypeEntry = typeManager.newFieldTypeEntry(fieldType.getId(), true);
        recordType.addFieldTypeEntry(fieldTypeEntry);
        recordType = typeManager.createRecordType(recordType);


        byte[] bytes = Bytes.toBytes("someBytes");
        Blob blob = writeBlob(bytes, "aMediaType", "testCreate");


        Record record = repository.newRecord();
        record.setRecordType(recordType.getName(), null);
        record.setField(fieldName, blob);
        record = repository.create(record);


        Record record2 = repository.newRecord();
        record2.setRecordType(recordType.getName(), null);
        record2.setField(fieldName, blob);
        record2 = repository.create(record2); // For an inline record this succeeds


        byte[] bytesLarge = new byte[3000];
        random.nextBytes(bytesLarge);
        Blob largeBlob = writeBlob(bytesLarge, "largeBlob", "testCreate");


        Record record3 = repository.newRecord();
        record3.setRecordType(recordType.getName(), null);
        record3.setField(fieldName, largeBlob);
        record3 = repository.create(record3);

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        recordType.addFieldTypeEntry(fieldTypeEntry);
        recordType = typeManager.createRecordType(recordType);


        byte[] bytes = new byte[size];
        random.nextBytes(bytes);
        Blob blob = writeBlob(bytes, "aMediaType", "testUpdateNonVersionedBlob");


        byte[] bytes2 = new byte[size];
        random.nextBytes(bytes2);
        Blob blob2 = writeBlob(bytes2, "aMediaType", "testUpdateNonVersionedBlob2");


        Record record = repository.newRecord();
        record.setRecordType(recordType.getName(), null);
        record.setField(fieldName, blob);
        record = repository.create(record);

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        recordType.addFieldTypeEntry(fieldTypeEntry);
        recordType = typeManager.createRecordType(recordType);


        byte[] bytes = new byte[size];
        random.nextBytes(bytes);
        Blob blob = writeBlob(bytes, "aMediaType", "testDeleteNonVersionedBlob");


        Record record = repository.newRecord();
        record.setRecordType(recordType.getName(), null);
        record.setField(fieldName, blob);
        record = repository.create(record);

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        recordType.addFieldTypeEntry(fieldTypeEntry);
        recordType = typeManager.createRecordType(recordType);


        byte[] bytes = new byte[size];
        random.nextBytes(bytes);
        Blob blob = writeBlob(bytes, "aMediaType", "testUpdateMutableBlob");


        byte[] bytes2 = new byte[size];
        random.nextBytes(bytes2);
        Blob blob2 = writeBlob(bytes2, "aMediaType", "testUpdateMutableBlob2");


        Record record = repository.newRecord();
        record.setRecordType(recordType.getName(), null);
        record.setField(fieldName, blob);
        record = repository.create(record);

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        recordType.addFieldTypeEntry(fieldTypeEntry);
        recordType = typeManager.createRecordType(recordType);


        byte[] bytes = new byte[size];
        random.nextBytes(bytes);
        Blob blob = writeBlob(bytes, "aMediaType", "testDeleteMutableBlob");


        byte[] bytes2 = new byte[size];
        random.nextBytes(bytes2);
        Blob blob2 = writeBlob(bytes2, "aMediaType", "testDeleteMutableBlob2");


        Record record = repository.newRecord();
        record.setRecordType(recordType.getName(), null);
        record.setField(fieldName, blob);
        record = repository.create(record);

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        // Upload a blob that, based upon the current default config, should end up in HBase
        //  (> 5000 bytes and < 200000 bytes)
        byte[] data = makeBlobData(10000);
        Blob blob = new Blob("application/octet-stream", (long) data.length, null);
        OutputStream blobStream = repository.getOutputStream(blob);
        IOUtils.copy(new ByteArrayInputStream(data), blobStream);
        blobStream.close();
        assertTrue(blob.getValue() != null);


        // Create a record with this blob
        Record record = repository.newRecord();
        record.setRecordType(new QName(NS, "file"));
        record.setField(new QName(NS, "data"), blob);

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                Bytes.toBytes("bytes2")), new ByteArray(Bytes.toBytes("bbb")));
    }


    @Test
    public void testBlobType() throws Exception {
        Blob blob1 = new Blob("text/html", Long.MAX_VALUE, null);
        writeBlob(blob1, Bytes.toBytes("aKey"));
        Blob blob2 = new Blob("image/jpeg", Long.MIN_VALUE, "images/image.jpg");
        writeBlob(blob2, Bytes.toBytes("anotherKey"));
        Blob blob3 = new Blob("text/plain", Long.valueOf(0), null);
        writeBlob(blob3, Bytes.toBytes("thirdKey"));


        runValueTypeTests("blobTypeId", "BLOB", blob1, blob2, blob3);
    }

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        Long size = dataInput.readLong();
        if (size == -1) {
            size = null;
        }
        String filename = dataInput.readUTF();
        return new Blob(key, mediaType, size, filename);
    }

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     * <p> IMPORTANT: Any changes on this format has an impact on the {@link ContainsValueComparator}
     */
    @Override
    public void write(Object value, DataOutput dataOutput, IdentityRecordStack parentRecords) {
        dataOutput.writeByte((byte)1); // Encoding version 1
        Blob blob = (Blob)value;
        byte[] key = blob.getValue();
        if (key == null) {
            dataOutput.writeVInt(0);
        } else {
            dataOutput.writeVInt(key.length);
            dataOutput.writeBytes(key);
        }
        dataOutput.writeUTF(blob.getMediaType());
        Long size = blob.getSize();
        if (size == null) {
            size = Long.valueOf(-1);
        }
        dataOutput.writeLong(size);
        dataOutput.writeUTF(blob.getName());
    }

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        //
        // Blob tests
        //
        {
            log.debug("Begin test V70");
            Blob blob1 = createBlob("blob1_msword.doc", "application/msword", "blob1_msword.doc");
            Blob blob1dup = createBlob("blob1_msword.doc", "application/msword", "blob1_msword.doc");
            Blob blob2 = createBlob("blob2.pdf", "application/pdf", "blob2.pdf");
            Blob blob3 =
                    createBlob("blob3_oowriter.odt", "application/vnd.oasis.opendocument.text", "blob3_oowriter.odt");
            Blob blob4 = createBlob("blob4_excel.xls", "application/excel", "blob4_excel.xls");


            // Single-valued blob field
            Record record1 = defaultTable.newRecord();
            record1.setRecordType(vRecordType1.getName());
            record1.setField(vBlobField.getName(), blob1);

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