[ https://issues.apache.org/jira/browse/LOG4J2-2757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17014486#comment-17014486 ]
Gary D. Gregory commented on LOG4J2-2757: ----------------------------------------- You should try to use a $$ instead of $ in your config. > JDBCAppender tableName from Main Arguments Lookup > ------------------------------------------------- > > Key: LOG4J2-2757 > URL: https://issues.apache.org/jira/browse/LOG4J2-2757 > Project: Log4j 2 > Issue Type: Question > Components: Appenders, JDBC > Affects Versions: 2.13.0 > Reporter: Petar Petrov > Priority: Major > > Hi, > I've posted this on StackOverflow, however, I could not really get any > solution there. > There is a JDBCAppender in my application to which I'd like to set the > *tableName* parameter from a [main argument > lookup|http://logging.apache.org/log4j/2.x/manual/lookups.html#AppMainArgsLookup]. > Reason for this is that my database table may optionally have a prefix, so > I'm reading this from a configuration file in my application and I'd like to > apply it to the appender at runtime. > {code:java} > <JDBC name="TaskLogJDBC" tableName="${main:1}LogEvents"> > <ConnectionFactory class="my.package.name.ConnectionFactory" > method="getConnection"/> > <Column name="created_on" isEventTimestamp="true"/> > <Column name="lvl" pattern="%level"/> > <Column name="logger" pattern="%logger"/> > <Column name="message" pattern="%message"/> > <Column name="throwable" pattern="%ex{full}"/> > </JDBC> > {code} > This is what I use in *Main.java* to set the arguments: > {code:java} > MainMapLookup.setMainArguments(new String[] { "--prefix", tablesPrefix > });{code} > Unfortunately, this does not seem to work. The JDBCAppender keeps reading the > *tableName* parameter verbatim as _${main:1}LogEvents_ instead of > _prefix_LogEvents_. I traced it and I think the JDBCAppender configuration > read happens before the *MainMapLookup.setMainArguments()* gets called. > Environment variable lookup is an option, but I'd like to avoid it at this > point. Are there any other options or am I doing something wrong? -- This message was sent by Atlassian Jira (v8.3.4#803005)