/**
* ************************************************************************* See description of
* superclass/interface.
*
* @see ch.skyguide.message.structure.AbstractGenericDataBlock#encode()
*/
@Override
public ByteBuffer encode() {
ByteBuffer dataBlockBuffer = ByteBuffer.allocate(getFieldLengthIndicator());
dataBlockBuffer.put((byte) getDataCategory());
dataBlockBuffer.putShort((short) getFieldLengthIndicator());
for (GenericRecord currentRecord : m_records) {
dataBlockBuffer.put(currentRecord.encode());
}
dataBlockBuffer.flip();
return dataBlockBuffer.asReadOnlyBuffer();
}
/**
* ************************************************************************* extracts a DataField
* from a GenericRecord, checks it's not null, renders it as String
*
* @param r the GenericRecord to extract data from
* @param frn the Field Reference Number of the data field to extract
* @return the string representation for the matching field
*/
private String extractField(GenericRecord r, int frn) {
final DataField f = r.getDataField(frn);
Assert.assertNotNull(f);
return f.toString();
}