public Dictionary <string, string> GetAttributes()
{
if (!_readFileAttrs)
{
Dictionary <string, string> cacheAttrs = GlobalFileAttributeCache.GetFileAttributes(_fname);
if (cacheAttrs == null)
{
_readFileAttrs = true;
int id = HDF4Helper.SDstart(_fname, HDF4Helper.AccessCodes.DFACC_READ);
try
{
int dsCount = 0;
int attCount = 0;
HDF4Helper.SDfileinfo(id, out dsCount, out attCount);
if (attCount == 0)
{
return(null);
}
_fileAttrs = GetAttributes(id, attCount);
GlobalFileAttributeCache.SetFileAttributes(_fname, _fileAttrs);
}
finally
{
HDF4Helper.SDend(id);
}
}
else
{
_fileAttrs = cacheAttrs;
}
}
return(_fileAttrs);
}
public string GetAttributeValue(string datasetName, string attributeName)
{
int id = HDF4Helper.SDstart(_fname, HDF4Helper.AccessCodes.DFACC_READ);
try
{
int dsIndex = HDF4Helper.SDnametoindex(id, datasetName);
int dsObjId = HDF4Helper.SDselect(id, dsIndex);
int attIndex = HDF4Helper.SDfindattr(dsObjId, attributeName);
return(ReadAttribute(dsObjId, attIndex));
}
finally
{
HDF4Helper.SDend(id);
}
}
private string[] GetALLDataset()
{
int sd_id = HDF4Helper.SDstart(_fname, HDF4Helper.AccessCodes.DFACC_READ);
try
{
int num_datasets = 0;
int num_global_attrs = 0;
HDF4Helper.SDfileinfo(sd_id, out num_datasets, out num_global_attrs);
string[] dsNames = ReadSDinfo(sd_id, num_datasets);
return(dsNames);
}
finally
{
HDF4Helper.SDend(sd_id);
}
}
private static string[] ReadSDinfo(int sd_id, int num_datasets)
{
string[] dsNames = new string[num_datasets];
for (int dsIndex = 0; dsIndex < num_datasets; dsIndex++)
{
int sds_id = HDF4Helper.SDselect(sd_id, dsIndex);
try
{
StringBuilder sds_name = new StringBuilder(256);
int rank;
int[] dimsizes = new int[256];
GeoDo.HDF4.HDF4Helper.DataTypeDefinitions data_type;
int num_attrs;
HDF4Helper.SDgetinfo(sds_id, sds_name, out rank, dimsizes, out data_type, out num_attrs);
dsNames[dsIndex] = sds_name.ToString();
}
finally
{
HDF4Helper.SDend(sds_id);
}
}
return(dsNames);
}
