| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more contributor license |
| * agreements. See the NOTICE file distributed with this work for additional information regarding |
| * copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance with the License. You may obtain a |
| * copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| |
| package org.apache.fluo.command; |
| |
| import com.beust.jcommander.JCommander; |
| import com.beust.jcommander.Parameter; |
| import com.beust.jcommander.ParameterException; |
| |
| public class BaseOpts { |
| |
| @Parameter(names = {"-h", "-help", "--help"}, help = true, description = "Prints help") |
| boolean help; |
| |
| public static void parse(String programName, BaseOpts opts, String[] args) { |
| JCommander jcommand = new JCommander(opts); |
| jcommand.setProgramName(programName); |
| try { |
| jcommand.parse(args); |
| } catch (ParameterException e) { |
| System.err.println(e.getMessage()); |
| jcommand.usage(); |
| System.exit(-1); |
| } |
| |
| if (opts.help) { |
| jcommand.usage(); |
| System.exit(1); |
| } |
| } |
| } |