Dynamic custom formatters

It might be nice to allow for custom formatters to be developed without the need to fork the repository. Currently, if you want to develop a custom formatter, the main repository needs to be forked and re-built after adding the new formatter to Format.java

For instance: https://github.com/billcrook/redis-rdb-cli/commit/b3cce93b85322ffe3d34951364fc9cfe9ac8996c#diff-2133dffbf4513d74abdacb9132f74a312f6775830f0763a67c83098c25fc06edR78

An alternative approach might be to allow for dynamic formatters at the command line using a fully qualified path to the new formatter. For instance: rct -f com.company.rdb.MyAwesomeFormatter ...

MyAwesomeFormatter could be part of a new jar that is placed in the classpath.

Thanks again for the great tool. I’ve been using it successfully in production for a number of months now - parsing many gigabytes of rdb files every day.

[leonchen83]

@billcrook fixed download v0.5.0

[leonchen83]

@billcrook refer to implement formatter service this API not only for json format, you can define your own output format. so I can’t add emitZSetJson , emitString method to this API. also can’t change visibility from private to protected . you could copy these methods to your own formatter class.