[Issue 7846]Add support for regex patterns in tenant and namespace

[rmn36]

Fixes #7846

Motivation

Given a wildcard in a tenant or namespace I would expect the code to look up all tenants/namespaces that match and then lookup all topics to subscribe to.

Verifying this change

• Updated PatternMultiTopicsConsumerImplTest

Does this pull request potentially affect one of the following parts:

If yes was chosen, please highlight the changes

• Dependencies (does it add or upgrade a dependency): (yes / no)
• The public API: (yes / no)
• The schema: (yes / no / don't know)
• The default values of configurations: (yes / no)
• The wire protocol: (yes / no)
• The rest endpoints: (yes / no)
• The admin cli options: (yes / no)
• Anything that affects deployment: (yes / no / don't know)

Documentation

• Does this pull request introduce a new feature? (yes / no)
• If a feature is not documented yet in this PR, please create a followup issue for adding the documentation

[jiazhai]

/pulsarbot run-failure-checks

[jiazhai]

/pulsarbot run-failure-checks

[jiazhai]

@rmn36 Seems some of the error in ci is related to this change.
e.g. cpp ci test:

/pulsar/pulsar-client-cpp/lib/Commands.cc: In static member function 'static std::__cxx11::string pulsar::Commands::messageType(pulsar::proto::BaseCommand_Type)':
/pulsar/pulsar-client-cpp/lib/Commands.cc:464:12: error: enumeration value 'BaseCommand_Type_GET_NAMESPACES_BY_REGEX' not handled in switch [-Werror=switch]
     switch (type) {
            ^
/pulsar/pulsar-client-cpp/lib/Commands.cc:464:12: error: enumeration value 'BaseCommand_Type_GET_NAMESPACES_BY_REGEX_RESPONSE' not handled in switch [-Werror=switch]
[  9%] Building CXX object lib/CMakeFiles/pulsarStatic.dir/ClientConnection.cc.o
[  9%] Building CXX object lib/CMakeFiles/pulsarStatic.dir/TopicName.cc.o

[jiazhai]

@rmn36 Would you please help rebase the code with master, and get the ci fixed?

[codelipenghui]

@rmn36 Would you please help resolve the conflicts?

[codelipenghui]

move to 2.8.0 first

[Anonymitaet]

@rmn36 thanks for your work.

1. Any progress for this PR?
2. Could you please help add docs accordingly? Thanks

[Anonymitaet]

@rmn36 thanks for your work.

1. Any progress for this PR?
2. Could you please help add docs accordingly? Thanks

[Anonymitaet]

Hi @rmn36 any progress for the code and doc? thanks

[ccwxl]

Is there any update? We really need this feature.

[TonyYANOqton]

Hi, anybody knows when this feature is expected to be released? We really need this feature too.

[tisonkun]

Closed as stale and conflict. Please rebase and resubmit the patch if it's still relevant.

[tisonkun]

@TonyYANOqton This seems a new feature that can require a PIP to proceed. I move the original issue to the discussion forum #18862 since we don't have a consensus on whether this is the right way yet.

As you can see, this patch conflicts a lot of files and it requires significant effort to rebase.