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POIDs for log messages when using SLF4J
 

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    <p>I would like to add a unique identifier to log statements, so I am able to add documentation (externally, e.g. a wiki) to every log statement, so a user can quickly access the message related documentation using the id. The logging framework I would like to use is SLF4J/logback.</p> <p>I was not able to find documentation about related approaches except for some bits regarding auditing frameworks.</p> <p>There is the Marker concept which I thought could be usable for ID injection, or I could just add the ID to the message text itself.</p> <p>How would I add IDs to the logging statements "the right way"? Are there possibilities I didn't think of?</p> <p><strong>EDIT</strong></p> <p>The term <em>unique ID</em> just states there <em>should</em> be an identifier per log statement. A developer e.g. adds such an ID to a table/enum/whatever manually, which could be done wrong. Such ID has to be stable, so documentation can be based on it. So the ID itself is not what I am wondering about.</p> <p>My question is: what would be the right way of pushing the ID to the logger together with the message text? Would Markers be suited for this kind of requirement, should I embed the ID into the message text or is there some other possibility?</p> <p>So, basically, would I use</p> <pre><code>logger.info(IDMarkers.DB_CONNECTION_FAILED, "no connection to the database"); </code></pre> <p>or instead just</p> <pre><code>logger.info("[{}] no connection to the database", LogIDs.DB_CONNECTION_FAILED); </code></pre> <p>First approach has the advantage that showing the IDs is up to the logging system/its configuration.</p>
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    1. USAdrian Genaid
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    1. COHow do you want the id to be unique? By call? By thread? By line of code?
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    2. CO@zenbeni: a log statement (e.g. `logger.debug('some message text')` ) should get the ID. Such statement would produce e.g. a log entry like `[ID1234] some message text` for every call.
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    3. COGetting the context of execution at runtime is expensive: http://stackoverflow.com/questions/17473148/dynamically-get-the-current-line-number so I think you should do it statically in the message.
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