tree 781aeca1339019f89666221d174ae01e2501928f
parent 3042386ac81afb03905dc47022782a60809c347e
author Murtadha Hubail <mhubail@apache.org> 1558501550 +0300
committer Murtadha Hubail <mhubail@apache.org> 1558656053 +0000

[NO ISSUE][API] Return Async Query Results As JSON

- user model changes: yes
- storage format changes: no
- interface changes: yes

Details:
- Add ResultMetadata that can hold metadata about a job's
  result.
- Add required CC functions to get ResultMetadata.
- Add IJobResultCallback that is called when a job's result
  is written successfully.
- Calculate a job's processed objects on the job completion.
- Calculate a job's duration on the job completion.
- Use the async query request format when serving the result
  from QueryResultApiServlet.
- Return a proper JSON envelop in QueryResultApiServlet
  which includes the results as well as metrics fields.
- Add test case for returning JSON response for async
  query.

Change-Id: Ic4812a14925099a677f9e77a0040f881d2600724
Reviewed-on: https://asterix-gerrit.ics.uci.edu/3401
Contrib: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Till Westmann <tillw@apache.org>