[jira] [Created] (LOG4J2-2749) JsonLayout KeyValuePair should not log json key which has empty or blank value

["Mahesh Gujale (Jira)" <ji...@apache.org>]

Mahesh Gujale created LOG4J2-2749:
-------------------------------------

             Summary: JsonLayout KeyValuePair should not log json key which has empty or blank value
                 Key: LOG4J2-2749
                 URL: https://issues.apache.org/jira/browse/LOG4J2-2749
             Project: Log4j 2
          Issue Type: New Feature
          Components: Layouts
    Affects Versions: 2.12.1
            Reporter: Mahesh Gujale


JsonLayout configured with following 
{quote}<Console name="APP_STAT" target="SYSTEM_OUT">

         <JSONLayout objectMessageAsJsonObject="true" compact="true" eventEol="true">

              <KeyValuePair key="timestamp" value="$${date:yyyy-MM-dd'T'HH:mm:ss.SSSZ}" />

                 <KeyValuePair key="type" value="$${ctx:type:-}" />

         </JSONLayout>

</Console>
{quote}
Which  logs as below
{quote}{ 
 "thread":"http-nio-8080-exec-1",
 "level":"INFO",
 "loggerName":"com.xyz.logging.interceptor.LogApiInterceptor",
 "message":"App Stat",
 "endOfBatch":true,
 "loggerFqcn":"org.apache.logging.log4j.spi.AbstractLogger",
 "instant":{ 
   "epochSecond":1577422969,
   "nanoOfSecond":22000000
 },
 "threadId":26,
 "threadPriority":5,
 "timestamp":"2019-12-27T10:32:49.022+0530",
 "type":"",
}
{quote}
 If we do not put 'type' in MDC or ThreadContext then json contains blank or empty key 'type'. If the key type is not put MDC or if its value is empty string/blank then JsonLayout should not log the key type in json.



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