[jira] [Created] (SDAP-344) Add ability to read time stamp from global attributes

["Joseph C. Jacob (Jira)" <ji...@apache.org>]

Joseph C. Jacob created SDAP-344:
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             Summary: Add ability to read time stamp from global attributes
                 Key: SDAP-344
                 URL: https://issues.apache.org/jira/browse/SDAP-344
             Project: Apache Science Data Analytics Platform
          Issue Type: Task
          Components: granule-ingester
            Reporter: Joseph C. Jacob


Some datasets lack a time variable and instead encode the time stamp in global attributes called time_coverage_start and time_coverage_end.  Example:
:time_coverage_start = "2002-07-04T00:40:05.000Z";
:time_coverage_end = "2017-08-01T03:00:00.000Z";
The ingester needs to be able to extract a single time stamp from these attributes, using either of the attributes, or the average of both.

The ingest should read the time stamp from a granule using these 3 methods (in priority order):
 # From the time variable
 # From the global attributes (this ticket)
 # From the filename

All three were options in the old legacy ningester.



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