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https://issues.apache.org/jira/browse/LOG4J2-2970?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Colin Zhang updated LOG4J2-2970:
--------------------------------
Description:
In many industry systems, we need to log the error and then throw a new
exception with the same message. The logger will populate the message with
markers and variables.
But we need to manually populated it by string + again when construct the
exception message. This is an anti-pattern.
Please take below snippet as example:
{code:java}
log.error("The number of records is {} which exceed the threshold {}", num,
threshold);
throw new ValidationException("The number of record is " + num + " which exceed
the threshold " + threshold);
{code}
If the API can return populated message, the code would turn much better:
{code:java}
String error = log.error("The number of records is {} which exceed the
threshold {}", num, threshold);
throw new ValidationException(error);
{code}
was:
In many industry systems, we need to log the error and then throw a new
exception with the same message. The logger will populate the message with
markers and variables.
But we need to manually populated it by string + again when construct the
exception message. This is an anti-pattern.
Please take below snippet as example:
{code:java}
log.error("The number of records is {} which exceed the threshold {}", num,
threshold);
throw new ValidationException("The number of record is " + num + " which exceed
the threshold " + threshold);
{code}
This is really bad since all the logging API are void.
If the API can return populated message, the code would turn into this:
{code:java}
String error = log.error("The number of records is {} which exceed the
threshold {}", num, threshold);
throw new ValidationException(error);
{code}
> Adding String return type of each log method
> --------------------------------------------
>
> Key: LOG4J2-2970
> URL: https://issues.apache.org/jira/browse/LOG4J2-2970
> Project: Log4j 2
> Issue Type: New Feature
> Components: API
> Affects Versions: 2.13.3
> Reporter: Colin Zhang
> Priority: Critical
> Labels: API, user-experience
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> In many industry systems, we need to log the error and then throw a new
> exception with the same message. The logger will populate the message with
> markers and variables.
> But we need to manually populated it by string + again when construct the
> exception message. This is an anti-pattern.
> Please take below snippet as example:
> {code:java}
> log.error("The number of records is {} which exceed the threshold {}", num,
> threshold);
> throw new ValidationException("The number of record is " + num + " which
> exceed the threshold " + threshold);
> {code}
>
> If the API can return populated message, the code would turn much better:
> {code:java}
> String error = log.error("The number of records is {} which exceed the
> threshold {}", num, threshold);
> throw new ValidationException(error);
> {code}
>
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