public InputStream read ( ) throws IOException { if ( file . exists ( ) ) try { return Files . newInputStream ( file . toPath ( ) ) ; } catch ( InvalidPathException e ) { throw new IOException ( e ) ; } // check if the compressed file exists if ( gz . exists ( ) ) try { return new GZIPInputStream ( Files . newInputStream ( gz . toPath ( ) ) ) ; } catch ( InvalidPathException e ) { throw new IOException ( e ) ; } // no such file throw new FileNotFoundException ( file . getName ( ) ) ; }
Reads the contents of a file .