BewareMyPower opened a new pull request #10031:
URL: https://github.com/apache/pulsar/pull/10031
### Motivation
For C++ client, if we want to see debug logs, there're two ways:
1. Build C++ library with CMake macro `-DUSE_LOG4CXX=ON`, and configure
`log4cxx.conf`.
2. Custom the logger factory for `Client`.
The first way needs log4cxx dependency that is not easy to install. It's
also why the `USE_LOG4CXX` option is disabled by default. The second way needs
a lot of extra code. Sometimes, we just want to set logger's default log level
to debug.
### Modifications
This PR exposes the internal `SimpleLoggerFactory` and support configure
debug level simply, for example
```c++
ClientConfiguration conf;
conf.setLogger(new SimpleLoggerFactory(Logger::LEVEL_DEBUG));
Client client("pulsar://localhost:6650", conf);
```
Add tests for the `Logger` created by `SimpleLoggerFactory::getLogger`.
### Verifying this change
- [ ] Make sure that the change passes the CI checks.
This change added tests `CustomLoggerTest.testSimpleLoggerFactory`.
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