public static byte[] BuildRowDeleteChangeWithHeader(RowDeleteChange rowChange) { List <PlainBufferCell> pkCells = new List <PlainBufferCell>(); foreach (var primaryKeyColumn in rowChange.GetPrimaryKey().GetPrimaryKeyColumns()) { pkCells.Add(PlainBufferConversion.ToPlainBufferCell(primaryKeyColumn)); } List <PlainBufferCell> cells = new List <PlainBufferCell>(); PlainBufferRow row = new PlainBufferRow(pkCells, cells, true); int size = ComputePlainBufferRowWithHeader(row); PlainBufferOutputStream output = new PlainBufferOutputStream(size); PlainBufferCodedOutputStream codedOutput = new PlainBufferCodedOutputStream(output); codedOutput.WriteRowWithHeader(row); if (!output.IsFull()) { throw new IOException("Bug: serialize row delete change failed."); } return(output.GetBuffer()); }
public static byte[] BuildPrimaryKeyWithHeader(PrimaryKey primaryKey) { int size = ComputePrimaryKeyWithHeader(primaryKey); PlainBufferOutputStream output = new PlainBufferOutputStream(size); output.WriteRawLittleEndian32(PlainBufferConsts.HEADER); output.WriteRawByte(PlainBufferConsts.TAG_ROW_PK); byte rowChecksum = (byte)0x0, cellChecksum; foreach (var key in primaryKey) { var column = new Column(key.Key, key.Value); cellChecksum = PlainBufferCrc8.crc8((byte)0x0, column.GetNameRawData()); cellChecksum = column.Value.GetChecksum(cellChecksum); WritePrimaryKeyColumn(column, output, cellChecksum); rowChecksum = PlainBufferCrc8.crc8(rowChecksum, cellChecksum); } // 没有deleteMarker, 要与0x0做crc. rowChecksum = PlainBufferCrc8.crc8(rowChecksum, (byte)0x0); output.WriteRawByte(PlainBufferConsts.TAG_ROW_CHECKSUM); output.WriteRawByte(rowChecksum); if (!output.IsFull()) { throw new IOException("Bug: serialize primary key failed."); } return(output.GetBuffer()); }
public static byte[] BuildRowPutChangeWithHeader(RowPutChange rowChange) { List <PlainBufferCell> pkCells = new List <PlainBufferCell>(); if (rowChange.GetPrimaryKey() == null) { throw new ArgumentException("Primary Key is NULL"); } foreach (PrimaryKeyColumn column in rowChange.GetPrimaryKey().GetPrimaryKeyColumns()) { pkCells.Add(PlainBufferConversion.ToPlainBufferCell(column)); } List <PlainBufferCell> cells = new List <PlainBufferCell>(); foreach (Column column in rowChange.GetColumnsToPut()) { cells.Add(PlainBufferConversion.ToPlainBufferCell(column, false, false, false, (byte)0x0)); } PlainBufferRow row = new PlainBufferRow(pkCells, cells, false); int size = ComputePlainBufferRowWithHeader(row); PlainBufferOutputStream output = new PlainBufferOutputStream(size); PlainBufferCodedOutputStream codedOutput = new PlainBufferCodedOutputStream(output); codedOutput.WriteRowWithHeader(row); if (!output.IsFull()) { throw new IOException("Bug: serialize row put change failed. Buffer remains " + output.Remain()); } return(output.GetBuffer()); }
public static byte[] BuildRowUpdateChangeWithHeader(RowUpdateChange rowChange) { List <PlainBufferCell> pkCells = new List <PlainBufferCell>(); foreach (var column in rowChange.GetPrimaryKey().GetPrimaryKeyColumns()) { pkCells.Add(PlainBufferConversion.ToPlainBufferCell(column)); } List <PlainBufferCell> cells = new List <PlainBufferCell>(); if (rowChange.GetColumnsToUpdate().Count > 0) { foreach (Tuple <Column, RowChangeType> column in rowChange.GetColumnsToUpdate()) { switch (column.Item2) { case RowChangeType.PUT: cells.Add(PlainBufferConversion.ToPlainBufferCell(column.Item1, false, false, false, (byte)0x0)); break; case RowChangeType.DELETE: cells.Add(PlainBufferConversion.ToPlainBufferCell(column.Item1, true, false, true, PlainBufferConsts.DELETE_ONE_VERSION)); break; case RowChangeType.DELETE_ALL: cells.Add(PlainBufferConversion.ToPlainBufferCell(column.Item1, true, true, true, PlainBufferConsts.DELETE_ALL_VERSION)); break; case RowChangeType.INCREMENT: cells.Add(PlainBufferConversion.ToPlainBufferCell(column.Item1, false, true, true, PlainBufferConsts.INCREMENT)); break; } } } PlainBufferRow row = new PlainBufferRow(pkCells, cells, false); int size = ComputePlainBufferRowWithHeader(row); PlainBufferOutputStream output = new PlainBufferOutputStream(size); PlainBufferCodedOutputStream codedOutput = new PlainBufferCodedOutputStream(output); codedOutput.WriteRowWithHeader(row); if (!output.IsFull()) { throw new IOException("Bug: serialize row update change failed."); } return(output.GetBuffer()); }
public static byte[] BuildColumnValueWithoutLengthPrefix(ColumnValue value) { int size = ComputeColumnValueWithoutLengthPrefix(value); PlainBufferOutputStream output = new PlainBufferOutputStream(size); PlainBufferCodedOutputStream codedOutput = new PlainBufferCodedOutputStream(output); codedOutput.WriteColumnValueWithoutLengthPrefix(value); if (!output.IsFull()) { throw new IOException("Bug: serialize column value failed. Buffer remains " + output.Remain()); } return(output.GetBuffer()); }