Almost there. It's:
logger.error("Failed to format {} (user : {})", param1, param2, ex);
i.e. if the last function parameter is a throwable, it is considered as
a provided throwable, not as a format parameter.
Claude
On 27/03/2017 05:53, chanwook park wrote:
Thanks for your answer.
I understood to randall's comment, but I want to use with multi
parameterized variable.
For example,
// usage
logger.error("Failed to format {} (user : {})", ex, param1, param2);
// api
Logger.error(String message, Throwable ex, Object... param)
Is there no way to do this? Or is this problem?
chanwook
On Wed, Mar 22, 2017 at 8:00 PM, <[email protected]
<mailto:[email protected]>> wrote:
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Message: 1
Date: Tue, 21 Mar 2017 07:06:01 -0400
From: Randall Wood <[email protected]
<mailto:[email protected]>>
To: [email protected] <mailto:[email protected]>
Subject: Re: [slf4j-user] slf4j-user Digest, Vol 56, Issue 13
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> I don't see the javadoc describing that behavior.
> https://www.slf4j.org/api/org/slf4j/Logger.html
<https://www.slf4j.org/api/org/slf4j/Logger.html>
<https://www.slf4j.org/api/org/slf4j/Logger.html
<https://www.slf4j.org/api/org/slf4j/Logger.html>>
That Javadoc reads "Be sure to read the FAQ entry relating to
parameterized logging
<https://www.slf4j.org/faq.html#logging_performance
<https://www.slf4j.org/faq.html#logging_performance>>. Note that
logging statements can be parameterized in presence of an
exception/throwable <https://www.slf4j.org/faq.html#paramException
<https://www.slf4j.org/faq.html#paramException>>.” and links to
https://www.slf4j.org/faq.html#paramException
<https://www.slf4j.org/faq.html#paramException>
<https://www.slf4j.org/faq.html#paramException
<https://www.slf4j.org/faq.html#paramException>> which describes
that behavior (which applies to all levels of logging with slf4j).
Randall
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