IntelliJ: Is there an Intention Action to convert old style Log4J calls to new style SLF4J calls?

Question

I am working on a project with legacy code that had used Log4J in the past, and now uses SLF4J. Most of the old style Log4J logging statements remain, and I convert the log statements slowly to the new SLF4J style as I come across them.

I've just realised that pressing Alt+Enter when in the old style log statements gives me the following options (unfortunately I cannot upload a screenshot):

• Copy String concatenation text to the clipboard
• Inject language or reference
• Replace '+' with 'String.format()'
• Replace '+' with 'StringBuilder.append()'
• Replace '+' with 'java.test.MessageFormat.format()'

The option Replace '+' with 'String.format()' is very close to what I need, although I don't need the String.format( bit.

Is there something that would give me an Intention Action of: Replace Log4J style log statement with SLF4J style log statement?

As an example of old logging style (e.g. Log4J), I mean:

LOGGER.debug("User " + user.getUserId() + " has performed a search with the criteria " + dto);

And by new style I mean:

LOGGER.debug("User {} has performed a search with the criteria {}", user.getUserId(), dto);

Answer 1

Have you tried the Java | Logging issues | Non-constant string concatenation as argument to logging call inspection? It has a quickfix to automatically convert a string concatenation to a parameterized log message.