[ISSUE #17] check upstreamHookResult before enter message handler main logic

[ChangingFond]

No description provided.

[codecov-commenter]

Codecov Report

Merging #18 (22b850d) into main (9939eab) will increase coverage by 0.01%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main      #18      +/-   ##
==========================================
+ Coverage   19.84%   19.86%   +0.01%     
==========================================
  Files          87       87              
  Lines        3723     3721       -2     
  Branches      610      610              
==========================================
  Hits          739      739              
+ Misses       2776     2774       -2     
  Partials      208      208              

Impacted Files	Coverage Δ
...t/cs/protocol/mqtt/handler/MqttConnectHandler.java	0.00% <0.00%> (ø)
...t/cs/protocol/mqtt/handler/MqttPublishHandler.java	0.00% <0.00%> (ø)
...cs/protocol/mqtt/handler/MqttSubscribeHandler.java	0.00% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 9939eab...22b850d. Read the comment docs.

[pingww]

Yes, the code order here needs to be adjusted a bit

[tianliuliu]

LGTM