// *** constructors *******************************************************
/// <summary> Constructs a <tt>Grib1IndicatorSection</tt> object from a byteBuffer.
///
/// </summary>
/// <param name="raf">RandomAccessFile with IndicatorSection content
///
/// </param>
/// <throws> NotSupportedException if raf contains no valid GRIB file </throws>
/// <throws> IOException </throws>
//UPGRADE_TODO: Class 'java.io.RandomAccessFile' was converted to 'System.IO.FileStream' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javaioRandomAccessFile'"
public Grib1IndicatorSection(System.IO.FileStream raf)
{
long mark = raf.Position;
//if Grib edition 1, get bytes for the gribLength
int[] data = new int[3];
for (int i = 0; i < 3; i++)
{
data[i] = raf.ReadByte();
}
//System.out.println( "data[]=" + data[0] +", "+ data[1]+", "+data[2] ) ;
// edition of GRIB specification
edition = raf.ReadByte();
//System.out.println( "edition=" + edition ) ;
if (edition == 1)
{
// length of GRIB record
// Reset to beginning, then read 3 bytes
raf.Position = mark;
gribLength = (long)GribNumbers.uint3(raf);
// Skip next byte, edition already read
raf.ReadByte();
//System.out.println( "edition 1 gribLength=" + gribLength ) ;
length = 8;
}
else if (edition == 2)
{
// length of GRIB record
discipline = data[2];
//System.out.println( "discipline=" + discipline) ;
gribLength = GribNumbers.int8(raf);
//System.out.println( "editon 2 gribLength=" + gribLength) ;
length = 16;
}
else
{
throw new NotSupportedException("GRIB edition " + edition + " is not yet supported");
}
} // end Grib1IndicatorSection
