[KYUUBI #4424][REST] Catch No Node Exception, when list kyuubi engines

[zwangsheng]

Why are the changes needed?

Close #4424

Catch No Node Exception, when list kyuubi engines

How was this patch tested?

• Add some test cases that check the changes thoroughly including negative and positive cases if possible

• Add screenshots for manual tests if appropriate

• Run test locally before make a pull request

[codecov-commenter]

Codecov Report

Merging #4425 (3052b15) into master (5aed270) will decrease coverage by 0.04%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master    #4425      +/-   ##
============================================
- Coverage     53.20%   53.17%   -0.04%     
  Complexity       13       13              
============================================
  Files           569      569              
  Lines         31055    31084      +29     
  Branches       4194     4196       +2     
============================================
+ Hits          16522    16528       +6     
- Misses        12973    12993      +20     
- Partials       1560     1563       +3     

Impacted Files	Coverage Δ
...rg/apache/kyuubi/server/api/v1/AdminResource.scala	87.39% <100.00%> (-8.17%)	⬇️
...e/kyuubi/jdbc/hive/ClosedOrCancelledException.java	0.00% <0.00%> (-100.00%)	⬇️
...apache/kyuubi/engine/JpsApplicationOperation.scala	77.41% <0.00%> (-3.23%)	⬇️
...in/spark/authz/ranger/SparkRangerAdminPlugin.scala	64.47% <0.00%> (-2.64%)	⬇️
...g/apache/kyuubi/operation/BatchJobSubmission.scala	75.27% <0.00%> (-2.20%)	⬇️
...yuubi/server/metadata/jdbc/JDBCMetadataStore.scala	87.78% <0.00%> (-0.65%)	⬇️
...n/scala/org/apache/kyuubi/engine/ProcBuilder.scala	78.39% <0.00%> (-0.62%)	⬇️

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[ulysses-you]

Shall we check if engine spec is existed first and return a user-friendly exception ? e.g. No such engine for user: $user, engine type: $engineType, share level: $shareLevel, subdomain: $subdomain

[zwangsheng]

Shall we check if engine spec is existed first and return a user-friendly exception ? e.g. No such engine for user: $user, engine type: $engineType, share level: $shareLevel, subdomain: $subdomain

This api used for list all engine under namespace or subdomain.

It‘s reasonable if we return an empty list while simple namespace (like /kyuubi-XXX-version) not created.

Probably not described clearly in desc, No Node Exception is because of the occurrence of kyuubi server namespace node not be created, not specific engine missing.

[zwangsheng]

@ulysses-you Throw user-friendly exception when namespace node not created.

[ulysses-you]

thanks, merging to master