Examples with DataCellDataOutput org.knime.core.data.DataCellDataOutput used on opensource projects

Example 1 with DataCellDataOutput

use of org.knime.core.data.DataCellDataOutput in project knime-core by knime.

the class LargeBlobCell method getCellSerializer.

public static final DataCellSerializer<LargeBlobCell> getCellSerializer() {
    return new DataCellSerializer<LargeBlobCell>() {

        private final Random m_random;

        {
            long time = System.currentTimeMillis();
            NodeLogger.getLogger(LargeBlobCell.class).debug("Using seed " + time);
            m_random = new Random(time);
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public LargeBlobCell deserialize(final DataCellDataInput input) throws IOException {
            int sizeOfCell = input.readInt();
            CheckUtils.checkArgument(sizeOfCell >= 0, "Negative size %d", sizeOfCell);
            for (int i = 0; i < sizeOfCell / 2; i++) {
                input.readByte();
            }
            String identifier = input.readUTF();
            for (int i = 0; i < sizeOfCell / 2; i++) {
                input.readByte();
            }
            return new LargeBlobCell(identifier, LargeBlobCell.SIZE_OF_CELL);
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public void serialize(final LargeBlobCell cell, final DataCellDataOutput output) throws IOException {
            output.writeInt(cell.m_sizeOfCell);
            byte[] ar = new byte[cell.m_sizeOfCell / 2];
            m_random.nextBytes(ar);
            output.write(ar);
            output.writeUTF(cell.m_identifier);
            m_random.nextBytes(ar);
            output.write(ar);
        }
    };
}