Logging to a file without using Logger?

Hi all,
I've been thinking of adding logging support to my app. So I found the Logger class. It seems to be ok, but that is not exactly what i was looking for.
What I want to implement is cyclic/rolling log. But I am not talking about cycling files (the Logger class works fine with that), I am talking about cycling lines in only one log file. I mean, to add a limit to the file (let's suppose it is a line count limit, but it can be implemented as a file size limit too) and once this line limit is reached the next log would erase the oldest line in the log file and move the rest to the place where their previous line had been (just like erasing the first element in an array and moving the rest of the elements one place back). Finally the new line is added at the end log.
I found the Logger class useful because a limit can be set to a log file. However when the file reaches the limit and a new log is being written ALL previous log entries are erased... unnecessary loosing a lot of useful data.
I also took a look at [Log4j|http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/package-summary.html] but they don't seem to have what I am looking for.
Is there any library or any other class I've missed to perform this?
In case there isn't, what could be the best way to implement it? An ArrayList<String>?
Thanks for your time :)

asdasdasdasdasdasdasdasd wrote:
What I want to implement is cyclic/rolling log. But I am not talking about cycling files (the Logger class works fine with that), I am talking about cycling lines in only one log file. I mean, to add a limit to the file (let's suppose it is a line count limit, but it can be implemented as a file size limit too) and once this line limit is reached the next log would erase the oldest line in the log file and move the rest to the place where their previous line had been (just like erasing the first element in an array and moving the rest of the elements one place back). Finally the new line is added at the end log.That's a bad idea. Once you hit the limit, you'll be rewriting the entire log file for every log message. Why would you want to do that?

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