[fix][broker] Fix default bundle size used while setting bookie affinity

[syk-coder]

Fixes #20194

Motivation

Motivation & Modifications:

After creating the namespace, if the bookie affinity is set for the namespaces, before setting the namespace policies, then for setting bookie Affinity currently the code directly uses the default bundle of size 1 instead of reading the configuration to get the default bundle size while creating the namespaces.

The change fixes that and uses the user-provided value from the broker configurations to set the bundles.

Verifying this change

• Make sure that the change passes the CI checks.

The tests are already in place to create the bookie affinity group in BrokerBookieIsolationTest.java . So Just added a check to get the bundle size that was missing earlier.

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

If the box was checked, please highlight the changes

• Dependencies (add or upgrade a dependency)
• The public API
• The schema
• The default values of configurations
• The threading model
• The binary protocol
• The REST endpoints
• The admin CLI options
• The metrics
• Anything that affects deployment

Documentation

• doc
• doc-required
• doc-not-needed
• doc-complete

Matching PR in forked repository

PR in forked repository:

[Technoboy-]

Could you also help change orElse to orElseGet at line 1713 and 1763

[syk-coder]

Could you also help change orElse to orElseGet at line 1713 and 1763

Even at those places and the remaining places where we are creating new LocalPolicies() we are not using the bundle size from the configuration. Should I change it to have the bundle size supplied by the user from the configuration? Should we do it in this PR or shall we create another bug and link it and fix them there?

[syk-coder]

Could you also help change orElse to orElseGet at line 1713 and 1763

Even at those places and the remaining places where we are creating new LocalPolicies() we are not using the bundle size from the configuration. Should I change it to have the bundle size supplied by the user from the configuration? Should we do it in this PR or shall we create another bug and link it and fix them there?

As this PR is already approved, created a new issue(#20278 ) for this and will push the changes in a new PR