1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.commons.rng.examples.stress; 18 19 import picocli.CommandLine.Command; 20 import picocli.CommandLine.Mixin; 21 import picocli.CommandLine.Model.CommandSpec; 22 import picocli.CommandLine.Spec; 23 24 import java.util.concurrent.Callable; 25 26 /** 27 * Specification for the top-level command in the examples stress application. 28 * 29 * <p>This command is will print the top-level help message.</p> 30 */ 31 @Command(name = "examples-stress", 32 description = "Apache Commons RNG Examples Stress Utilities.") 33 class ExamplesStressCommand implements Callable<Void> { 34 /** The command specification. Used to print the usage built by Picocli. */ 35 @Spec 36 private CommandSpec spec; 37 38 /** The standard options. */ 39 @Mixin 40 private StandardOptions reusableOptions; 41 42 @Override 43 public Void call() { 44 // All work is done in sub-commands so just print the usage 45 spec.commandLine().usage(System.out); 46 return null; 47 } 48 }