On Apr 30, 2014 6:00 AM, <logback-user-request@qos.ch> wrote:

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Today's Topics:

   1. How to get a unique content rollingFileAppender? (hax0r@sina.com)


---------- Forwarded message ----------
From: <hax0r@sina.com>
To: "logback-user" <logback-user@qos.ch>
Cc: 
Date: Wed, 30 Apr 2014 15:23:42 +0800
Subject: [logback-user] How to get a unique content rollingFileAppender?

I want such a rollingFileAppneder:

Before appending new line to the current log file, the logger will check: if there is any same line in the current log file, it will not write the same content to the file.

I can not find such a file appender, so I want to customize it:

Firstly, I want to create a class extends the RollingFileAppneder, but I find that the field which point to current file in RollingFileAppneder is "friendly", I can not get the field in my own class.

There is an stupid option: I copy all the codes in the RollingFileAppneder, and changed some logic in the append part. 

Is there a elgant way to get such a unique content rollingFileAppender?

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