question: public static String downloadString ( URL url , Proxy proxy , int readTimeout , int socketTimeout , String encoding , int triesCount ) { IOException lastException = null ; for ( int i = 0 ; i < triesCount ; i ++ ) { lastException = null ; HttpURLConnection connection = null ; InputStream inputStream = null ; try { connection = ( HttpURLConnection ) ( proxy == null ? url . openConnection ( ) : url . openConnection ( proxy ) ) ; connection . setReadTimeout ( readTimeout ) ; connection . setConnectTimeout ( socketTimeout ) ; connection . connect ( ) ; inputStream = connection . getInputStream ( ) ; return IOUtils . toString ( inputStream , encoding ) ; } catch ( IOException ex ) { if ( LOG . isDebugEnabled ( ) ) { LOG . warn ( "Error downloading string from {}. Try number: {}. Cause:\r\n" , url , triesCount , ex ) ; } else { LOG . warn ( "Error downloading string from {}. Try number: {}. Cause:{}" , url , triesCount , ex . getMessage ( ) ) ; } lastException = ex ; } finally { IOUtils . closeQuietly ( inputStream ) ; if ( connection != null ) { connection . disconnect ( ) ; } } } if ( lastException != null ) { LOG . error ( "Could not download string from url: " + url , lastException ) ; } return null ; }
target:  Downloads content from the specified url using specified proxy (or do not using it) and timeouts. Returns null if there's an error.