public void download ( ) { URL dataURL = null ; String fileName = folder + "/" + url . substring ( url . lastIndexOf ( "/" ) + 1 ) ; if ( new File ( fileName ) . exists ( ) ) { return ; } try { dataURL = new URL ( url ) ; } catch ( MalformedURLException e ) { e . printStackTrace ( ) ; } File downloadedData = new File ( fileName ) ; try { assert dataURL != null ; FileUtils . copyURLToFile ( dataURL , downloadedData ) ; } catch ( IOException e ) { e . printStackTrace ( ) ; } }
Downloads the file from the provided url .