/** * write file header */ private void writeHeaderToFile() throws IOException { byte[] fileHeader = CarbonUtil.getByteArray( CarbonMetadataUtil.getFileHeader( true, thriftColumnSchemaList, model.getSchemaUpdatedTimeStamp())); ByteBuffer buffer = ByteBuffer.wrap(fileHeader); currentOffsetInFile += fileChannel.write(buffer); }
private void writeFileHeader() throws IOException { List<ColumnSchema> wrapperColumnSchemaList = CarbonUtil .getColumnSchemaList(carbonTable.getDimensionByTableName(carbonTable.getTableName()), carbonTable.getMeasureByTableName(carbonTable.getTableName())); int[] dimLensWithComplex = new int[wrapperColumnSchemaList.size()]; for (int i = 0; i < dimLensWithComplex.length; i++) { dimLensWithComplex[i] = Integer.MAX_VALUE; } int[] dictionaryColumnCardinality = CarbonUtil.getFormattedCardinality(dimLensWithComplex, wrapperColumnSchemaList); List<Integer> cardinality = new ArrayList<>(); List<org.apache.carbondata.format.ColumnSchema> columnSchemaList = AbstractFactDataWriter .getColumnSchemaListAndCardinality(cardinality, dictionaryColumnCardinality, wrapperColumnSchemaList); FileHeader fileHeader = CarbonMetadataUtil.getFileHeader(true, columnSchemaList, System.currentTimeMillis()); fileHeader.setIs_footer_present(false); fileHeader.setIs_splitable(true); fileHeader.setSync_marker(CarbonStreamOutputFormat.CARBON_SYNC_MARKER); fileHeader.setCompressor_name(compressorName); outputStream.write(CarbonUtil.getByteArray(fileHeader)); }