private long getTotalUploadSize ( ) throws IOException { long size = 0 ; for ( Map . Entry < String , File > entry : files . entrySet ( ) ) { size += entry . getValue ( ) . length ( ) ; } for ( Map . Entry < String , InputStream > entry : fileStreams . entrySet ( ) ) { size += entry . getValue ( ) . available ( ) ; } return size ; }
used for upload progress