public void activateOptions ( ) { if ( rollingPolicy == null ) { LogLog . warn ( "Please set a rolling policy for the RollingFileAppender named '" + getName ( ) + "'" ) ; return ; } // // if no explicit triggering policy and rolling policy is both. // if ( ( triggeringPolicy == null ) && rollingPolicy instanceof TriggeringPolicy ) { triggeringPolicy = ( TriggeringPolicy ) rollingPolicy ; } if ( triggeringPolicy == null ) { LogLog . warn ( "Please set a TriggeringPolicy for the RollingFileAppender named '" + getName ( ) + "'" ) ; return ; } Exception exception = null ; synchronized ( this ) { triggeringPolicy . activateOptions ( ) ; rollingPolicy . activateOptions ( ) ; try { RolloverDescription rollover = rollingPolicy . initialize ( getFile ( ) , getAppend ( ) ) ; if ( rollover != null ) { Action syncAction = rollover . getSynchronous ( ) ; if ( syncAction != null ) { syncAction . execute ( ) ; } setFile ( rollover . getActiveFileName ( ) ) ; setAppend ( rollover . getAppend ( ) ) ; lastRolloverAsyncAction = rollover . getAsynchronous ( ) ; if ( lastRolloverAsyncAction != null ) { Thread runner = new Thread ( lastRolloverAsyncAction ) ; runner . start ( ) ; } } File activeFile = new File ( getFile ( ) ) ; if ( getAppend ( ) ) { fileLength = activeFile . length ( ) ; } else { fileLength = 0 ; } super . activateOptions ( ) ; } catch ( Exception ex ) { exception = ex ; } } if ( exception != null ) { LogLog . warn ( "Exception while initializing RollingFileAppender named '" + getName ( ) + "'" , exception ) ; } }
Prepare instance of use .