[ISSUE #6174] Small optimization of Proxy code and logic

[socutes]

close #6174

[codecov-commenter]

Codecov Report

Merging #6175 (b12641b) into develop (7cfffe7) will increase coverage by 0.01%.
The diff coverage is 50.00%.

@@              Coverage Diff              @@
##             develop    #6175      +/-   ##
=============================================
+ Coverage      43.18%   43.19%   +0.01%     
+ Complexity      8852     8850       -2     
=============================================
  Files           1094     1094              
  Lines          77153    77154       +1     
  Branches       10063    10063              
=============================================
+ Hits           33321    33330       +9     
+ Misses         39665    39655      -10     
- Partials        4167     4169       +2     

Impacted Files	Coverage Δ
...ava/org/apache/rocketmq/proxy/grpc/GrpcServer.java	0.00% <0.00%> (ø)
...etmq/proxy/grpc/v2/channel/GrpcChannelManager.java	44.18% <100.00%> (+15.61%)	⬆️
...va/org/apache/rocketmq/store/FlushDiskWatcher.java	81.25% <0.00%> (-9.38%)	⬇️
...org/apache/rocketmq/store/ha/WaitNotifyObject.java	80.35% <0.00%> (-5.36%)	⬇️
...he/rocketmq/client/trace/AsyncTraceDispatcher.java	82.21% <0.00%> (-2.41%)	⬇️
...a/org/apache/rocketmq/filter/util/BloomFilter.java	60.43% <0.00%> (-2.20%)	⬇️
.../rocketmq/broker/filter/ConsumerFilterManager.java	72.19% <0.00%> (-0.90%)	⬇️
...che/rocketmq/acl/plain/PlainPermissionManager.java	78.22% <0.00%> (-0.54%)	⬇️
...ent/impl/consumer/DefaultLitePullConsumerImpl.java	68.17% <0.00%> (-0.47%)	⬇️
...e/rocketmq/namesrv/routeinfo/RouteInfoManager.java	63.25% <0.00%> (-0.33%)	⬇️
... and 11 more

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[socutes]

@zhouxinyu PTAL

[xdkxlk]

LGTM