[#noissue] Refactor DataSender

[emeroad]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 40.54054% with 44 lines in your changes missing coverage. Please review.

Project coverage is 35.00%. Comparing base (8f5093b) to head (af90303).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...om/navercorp/pinpoint/common/profiler/IOUtils.java	0.00%	10 Missing ⚠️
...corp/pinpoint/profiler/test/rpc/MockRpcModule.java	0.00%	8 Missing ⚠️
.../profiler/test/MockApiMetaDataServiceProvider.java	0.00%	4 Missing ⚠️
.../profiler/test/PluginApplicationContextModule.java	0.00%	4 Missing ⚠️
...point/profiler/test/ApplicationContextHandler.java	0.00%	3 Missing ⚠️
...pinpoint/profiler/test/MockApiMetaDataService.java	0.00%	3 Missing ⚠️
...npoint/profiler/test/AsyncDataSenderDelegator.java	0.00%	2 Missing ⚠️
...nt/profiler/monitor/CustomMetricCollectingJob.java	0.00%	2 Missing ⚠️
...inpoint/profiler/test/MockTraceContextFactory.java	0.00%	1 Missing ⚠️
...vercorp/pinpoint/profiler/test/TestDataSender.java	0.00%	1 Missing ⚠️
... and 6 more

Additional details and impacted files

@@            Coverage Diff            @@
##             master   #11977   +/-   ##
=========================================
  Coverage     35.00%   35.00%           
+ Complexity    10966    10964    -2     
=========================================
  Files          3824     3824           
  Lines         91774    91765    -9     
  Branches       9706     9707    +1     
=========================================
+ Hits          32124    32125    +1     
+ Misses        56984    56973   -11     
- Partials       2666     2667    +1     

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