@ SuppressWarnings ( "unchecked" ) protected synchronized FileOutputFormat < K , V > getDelegate ( Configuration conf ) throws IOException { if ( delegate == null ) { delegate = BigQueryOutputConfiguration . getFileOutputFormat ( conf ) ; logger . atInfo ( ) . log ( "Delegating functionality to '%s'." , delegate . getClass ( ) . getSimpleName ( ) ) ; } return delegate ; }
Gets a reference to the underlying delegate used by this OutputFormat .