void FileHeaderWriter::WriteGenericDataHdr(std::ofstream &os, FileHeader &g)
{
GenericDataHeaderWriter writer;
// Check if a file ID has been assign, if not assign one.
if (g.GetGenericDataHdr()->GetFileId().length() == 0)
g.GetGenericDataHdr()->SetFileId(AffymetrixGuid::GenerateNewGuid());
writer.Write(os, *(g.GetGenericDataHdr()));
}
// Uses a mix of the GenericFileWriter and raw commands
void TestFileGenerator::WriteOutGenericDATDataFile1UsingGenericWriter()
{
GenericDataHeader gdh;
AddStandardGenericDataHeader(gdh);
// Fill the DataSetHeader
DataSetHeader dph;
dph.SetName(L"acquired data");
ParameterNameValueType nvt;
nvt.SetName(L"Scanner");
nvt.SetValueText(L"M10");
dph.AddNameValParam(nvt);
nvt.SetName(L"Pixel Size");
nvt.SetValueFloat(0.051f);
dph.AddNameValParam(nvt);
dph.AddColumn(UShortColumn(L"Pixel"));
int32_t rows = 100;
dph.SetRowCnt(rows);
// Open the file.
ofstream fileStream;
fileStream.open( "test.file.data_dat", ios_base::out | ios_base::binary | ios_base::trunc);
// Write the file header using raw methods until the writer is available.
// magic number
FileOutput::WriteUInt8(fileStream, 59);
// version
FileOutput::WriteInt8(fileStream, 1);
// Number of data cubes - confirm this
FileOutput::WriteUInt32(fileStream, 1);
// offset to the data cube byte offset array
int offsetLocation = fileStream.tellp();
FileOutput::WriteUInt32(fileStream, 1); //????
// Write the GenericDataHeader to the file
GenericDataHeaderWriter gdhWriter;
gdhWriter.Write(fileStream, gdh);
//
// Data Cube
//
int offset = fileStream.tellp();
// Write the DataSetHeader
DataSetWriter dphWriter(&fileStream, &dph);
dphWriter.WriteHeader();
// Write out the data
for( int32_t i=0; i < rows; ++i )
{
u_int16_t value = (u_int16_t)(i*10+i);
FileOutput::WriteUInt16(fileStream, value);
}
// write the offset
fileStream.seekp(offsetLocation);
FileOutput::WriteUInt32(fileStream, offset);
fileStream.close();
}
