1 /* 2 * Copyright 2016, Google Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * Neither the name of Google Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 package org.jf.util.jcommander; 33 34 import com.beust.jcommander.JCommander; 35 import com.google.common.collect.Iterables; 36 import com.google.common.collect.Lists; 37 import org.jf.util.ConsoleUtil; 38 39 import javax.annotation.Nonnull; 40 import java.util.List; 41 42 public abstract class Command { 43 44 @Nonnull 45 protected final List<JCommander> commandAncestors; 46 Command(@onnull List<JCommander> commandAncestors)47 public Command(@Nonnull List<JCommander> commandAncestors) { 48 this.commandAncestors = commandAncestors; 49 } 50 usage()51 public void usage() { 52 System.out.println(new HelpFormatter() 53 .width(ConsoleUtil.getConsoleWidth()) 54 .format(getCommandHierarchy())); 55 } 56 setupCommand(JCommander jc)57 protected void setupCommand(JCommander jc) { 58 } 59 getJCommander()60 protected JCommander getJCommander() { 61 JCommander parentJc = Iterables.getLast(commandAncestors); 62 return parentJc.getCommands().get(this.getClass().getAnnotation(ExtendedParameters.class).commandName()); 63 } 64 getCommandHierarchy()65 public List<JCommander> getCommandHierarchy() { 66 List<JCommander> commandHierarchy = Lists.newArrayList(commandAncestors); 67 commandHierarchy.add(getJCommander()); 68 return commandHierarchy; 69 } 70 run()71 public abstract void run(); 72 } 73