The broker service works ok against Hyrax servers because the dataset URL is the same as the download URL. However in TDS servers:
- file access is granted using a different server.
- DAP2 access uses a different service
- Is there even a DAP4 service available in the TDS?
Regardless the catalog service stack needs to be evaluated. Broker links should be built using a prioritized list of available services. It seems like getting the file is maybe the first choice, modulo the fact that the TDS support formats that Hyrax does not ( .gini, .grib, etc). Evaluating what is a serviceable format is more than the OLFS/XSLT is going to do so if we can get a DAP4 data response then we should because we know that it will have all of the dataset content, and that we can read it.
Broker Retrieval Priorities:
- DAP2 (If we get .dods and .das can we then build a DMR?)