#696 HAPI 3.0 has references

[Jeremy Faden]

The next revision of HAPI will allow for references in the info response. This is to (1) reduce the size needed for repeated DEPEND_1 data in "bins", and (2) to allow for time-varying DEPEND_1. See https://github.com/hapi-server/data-specification/issues/82 and https://github.com/hapi-server/data-specification/issues/83.

[Jeremy Faden]

Here's an example info from Bob's server at vap+hapi:http://hapi-server.org/servers/TestDataRef/hapi?id=dataset1&parameters=Time,spectra_time_dependent_bins&timerange=1970-01-01+0:00:00+to+0:01:11:

    {
      "bins": [
        {
          "ranges": "frequency_ranges",
          "name": "frequency",
          "centers": "frequency_centers",
          "units": "Hz"
        }
      ],
      "size": [
        10
      ],
      "name": "spectra_time_dependent_bins",
      "description": "A 10-element spectra with time-dependent bins",
      "units": "m",
      "type": "double",
      "fill": "-1e31"
    },

[Jeremy Faden]

The example from Bob's server now works.

[Jeremy Faden]

'''#ref''' is now supported as well. That's pretty easy to support, even if you have to do it by hand.

[Jeremy Faden]

There's special code I hadn't committed that refers to this ticket and a special server, presumably used for testing. I'm commenting it out. See getInfo in HapiServer.java.