As a data provider, I want netCDF 4 files with groups to be accessible.
How: Modify the netCDF handler to build the DMR object by reading the netCDF data file (and not by using the DDS). Build the DMR so that it contains Groups. For DDS responses, transform the DMR to a DDS using the code in the DMR class.
A DMR holds information about every variable in a dataset. This includes all of the attributes for each variable. A general algorithm for building the DMR (which will need modification as we work on this) is: