Ceki Gülcü created LOGBACK-1415: ----------------------------------- Summary: {{prefix}} composite converter Key: LOGBACK-1415 URL: https://jira.qos.ch/browse/LOGBACK-1415 Project: logback Issue Type: Improvement Reporter: Ceki Gülcü Assignee: Logback dev list In order to help output parsers, it is sometimes useful to prefix log output with the key of each item. *Example 1:* {code}%X{user} {code} would be easier to parse if it were written as {code}%X{user} {code} *Example 2:* {code}%X{user} %{sessionId} %level %logger %msg{code} would be easier to parse if written as {code}user=%X{user} sessionId=%{sessionId} level=%level logger=$logger msg=%msg}{code} The {{prefix}} composite converter automates the process. Thus, the following patterns generate equivalent output {code}%prefix(%X{user} %{sessionId} %level %logger %msg){code} and {code}user=%X{user} sessionId=%{sessionId} level=%level logger=$logger msg=%msg}{code} {code}user=%X{user} sessionId=%{sessionId} level=%level logger=$logger msg=%msg}{code} -- This message was sent by Atlassian JIRA (v7.3.1#73012)