private static String getAlgorithmUsage ( String algorithmName ) { StrBuilder strBuilder = new StrBuilder ( ) ; Driver algorithm = driverFactory . get ( algorithmName ) ; strBuilder . appendNewLine ( ) . appendNewLine ( ) . appendln ( algorithm . getLongDescription ( ) ) . appendNewLine ( ) . append ( "usage: flink run examples/flink-gelly-examples_<version>.jar --algorithm " ) . append ( algorithmName ) . append ( " [algorithm options] --input <input> [input options] --output <output> [output options]" ) . appendNewLine ( ) . appendNewLine ( ) . appendln ( "Available inputs:" ) ; for ( Input input : inputFactory ) { strBuilder . append ( " --input " ) . append ( input . getName ( ) ) . append ( " " ) . appendln ( input . getUsage ( ) ) ; } String algorithmParameterization = algorithm . getUsage ( ) ; if ( algorithmParameterization . length ( ) > 0 ) { strBuilder . appendNewLine ( ) . appendln ( "Algorithm configuration:" ) . append ( " " ) . appendln ( algorithm . getUsage ( ) ) ; } strBuilder . appendNewLine ( ) . appendln ( "Available outputs:" ) ; for ( Output output : outputFactory ) { strBuilder . append ( " --output " ) . append ( output . getName ( ) ) . append ( " " ) . appendln ( output . getUsage ( ) ) ; } return strBuilder . appendNewLine ( ) . toString ( ) ; }
Display the usage for the given algorithm . This includes options for all compatible inputs the selected algorithm and outputs implemented by the selected algorithm .