public String read ( ) throws IOException { CurrentInProgressMetadataWritable cip = localWritable . get ( ) ; if ( readAndUpdateVersion ( cip ) ) { return cip . getPath ( ) ; } else { if ( LOG . isDebugEnabled ( ) ) { LOG . debug ( fullyQualifiedZNode + " is currently clear." ) ; } } return null ; }
Read the full path to the ZNode holding the metadata for the ledger containing the current in - progress edit log segment or null if no segment is currently in - progress