Jeff Snow created LOG4J2-977:
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Summary: Add maxLength parameter to Column element of JDBCAppender
Key: LOG4J2-977
URL: https://issues.apache.org/jira/browse/LOG4J2-977
Project: Log4j 2
Issue Type: Improvement
Components: Appenders
Affects Versions: 2.2, 2.1
Reporter: Jeff Snow
For a Column element within the JDBCAppender, add a maxLength parameter to
truncate the value to a maxLength. This will help prevent exceptions when
inserting rows into the database and the length of a string is greater than the
size of a column.
For instance, the following would limit the value to 4000 characters by
truncating message if the length is greater than 4000 characters.
<Column name="message" pattern="%message" isUnicode="false" maxLength="4000"/>
Note: In log4j 1.x we solved this problem by coding a custom class that
implemented the interface JDBCColumnHandler, but Log4j2 does not offer this
interface:
public class MessageColumnHandler implements JDBCColumnHandler {
@Override
public Object getObject( final LoggingEvent pLoggingEvent, final String s,
final String s2 ) throws Exception {
return StringUtils.abbreviate( "intercepted: "
+ pLoggingEvent.getRenderedMessage()
, 4000 );
}
}
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