[ISSUE #3858]The interface RegistryService can design some default methods.

[pandaapo]

Fixes #3858.

Motivation

See Enhancement Request in issue for detail.

Modifications

See Describe the solution you'd like in issue for detail.

Documentation

• Does this pull request introduce a new feature? no

[pandaapo]

20230502. Note 1(EtcdRegistryService):

I should but do not yet delete the method findEventMeshClientDistributionData() and findEventMeshServicePubTopicInfos() in EtcdRegistryService. Because there has been an issue #3505 to modify(not delete) these places, and its pr is still waiting for merging for 3 weeks. If I delete these two methods before, it maybe results in conflict.

So I choose to wait for that pr to be processed, and then delete method findEventMeshClientDistributionData() and findEventMeshServicePubTopicInfos() in a new pr or this pr.

---

20230511. Situation above resolved: Because the pr linked issue [Enhancement] Do some code optimization[EtcdRegistryService] #3505 has been merged. In this pr, I can delete the method findEventMeshClientDistributionData() and findEventMeshServicePubTopicInfos() in EtcdRegistryService.

[pandaapo]

20230502. Note 2(ZookeeperRegistryService):

Although issue #3833 wants to modify(not delete) findEventMeshClientDistributionData() and findEventMeshServicePubTopicInfos() in ZookeeperRegistryService, I delete them immediately here to satisfy issue #3858 since there is no pr linked to #3833 for now.

If someone submit a pr linked issue #3833 and is merged before this pr in the future, conflicts may happen. I should pay attention to that situation.

[codecov]

Codecov Report

Merging #3859 (a543043) into master (638edbe) will decrease coverage by 0.13%.
The diff coverage is 28.57%.

❗ Current head a543043 differs from pull request most recent head cb6a01e. Consider uploading reports for the commit cb6a01e to get more accurate results

@@             Coverage Diff              @@
##             master    #3859      +/-   ##
============================================
- Coverage     13.93%   13.80%   -0.13%     
+ Complexity     1291     1290       -1     
============================================
  Files           570      571       +1     
  Lines         28842    29072     +230     
  Branches       2807     2845      +38     
============================================
- Hits           4019     4014       -5     
- Misses        24450    24682     +232     
- Partials        373      376       +3     

Impacted Files	Coverage Δ
...tmesh/registry/etcd/service/EtcdCustomService.java	0.00% <0.00%> (ø)
...h/registry/nacos/service/NacosRegistryService.java	43.75% <21.42%> (+7.18%)	⬆️
...registry/consul/service/ConsulRegistryService.java	41.79% <33.33%> (+0.61%)	⬆️
...esh/registry/etcd/service/EtcdRegistryService.java	20.00% <50.00%> (+0.31%)	⬆️
...ry/zookeeper/service/ZookeeperRegistryService.java	76.15% <60.00%> (+0.34%)	⬆️

... and 44 files with indirect coverage changes

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