public BasicArrayVector(DATA_TYPE type, ExtendedDataInput @in) : base(DATA_FORM.DF_VECTOR)
{
this.type = type;
int rows = @in.readInt();
int cols = @in.readInt();
rowIndices = new List <int>(new int[rows]);
DATA_TYPE valueType = type - 64;
valueVec = (AbstractVector)BasicEntityFactory.instance().createVectorWithDefaultValue(valueType, cols);
this.baseUnitLength_ = valueVec.getUnitLength();
int rowsRead = 0;
int rowsReadInBlock = 0;
int prevIndex = 0;
int totalBytes = 0;
while (rowsRead < rows)
{
//read block header
int blockRows = @in.readShort();
int countBytes = @in.readChar();
@in.skipBytes(1);
//read array of count
totalBytes = blockRows * countBytes;
rowsReadInBlock = 0;
int offect = 0;
while (offect < totalBytes)
{
int len = Math.Min(BUF_SIZE, totalBytes - offect);
@in.readFully(buf, 0, len);
int curRows = len / countBytes;
if (countBytes == 1)
{
for (int i = 0; i < curRows; i++)
{
int curRowCells = buf[i];
rowIndices[rowsRead + rowsReadInBlock + i] = prevIndex + curRowCells;
prevIndex += curRowCells;
}
}
else if (countBytes == 2)
{
for (int i = 0; i < curRows; ++i)
{
int curRowCells = BitConverter.ToInt16(buf, i * 2);
rowIndices[rowsRead + rowsReadInBlock + i] = prevIndex + curRowCells;
prevIndex += curRowCells;
}
}
else
{
for (int i = 0; i < curRows; ++i)
{
int curRowCells = BitConverter.ToInt32(buf, i * 4);
rowIndices[rowsRead + rowsReadInBlock + i] = prevIndex + curRowCells;
prevIndex += curRowCells;
}
}
rowsReadInBlock += curRows;
offect += len;
}
//read array of values
int rowStart = rowsRead == 0 ? 0 : rowIndices[rowsRead - 1];
int valueCount = rowIndices[rowsRead + rowsReadInBlock - 1] - rowStart;
valueVec.deserialize(rowStart, valueCount, @in);
rowsRead += rowsReadInBlock;
}
}
