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I’m using Log4Net to handle logging in my WPF application.
Currently, the logger is configured with the rest of the front-end code. I have to pass a reference to the Service layer and the Repository layer if I want to be able to use the logger in these layers (I’ll actually be using StructureMap for this). This means the back-end has a dependency on the front-end and I don’t like that.
I’m wondering how best to handle this? Should I configure the logger in the Repository layer?
log4net LogManager.GetLogger(string name) will return an existing logger instance if it has already been created (e.g., in another layer), so there is no need to pass logger objects around.
You do need to be aware of multiple threads/processes trying to write to the same log file at the same time. You can use the log4net MinimalLock, or try this third party solution. Neither is ideal (the codeproject one is inefficient and still hits concurrency problems). I have ended up writing my own (which unfortunately is not publicly available).