1 /*
2 * Copyright (C) 2016 Hobrasoft s.r.o.
3 *
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU Affero General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU Affero General Public License for more details.
13 *
14 * You should have received a copy of the GNU Affero General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17 package cz.hobrasoft.pdfmu;
18
19 import java.util.Map;
20 import net.sourceforge.argparse4j.inf.Argument;
21 import net.sourceforge.argparse4j.inf.ArgumentAction;
22 import net.sourceforge.argparse4j.inf.ArgumentParser;
23
24 /**
25 * Argument action to print a message and exit program. Inspired by
26 * {@link net.sourceforge.argparse4j.impl.action.VersionArgumentAction}.
27 *
28 * @author Filip Bartek
29 */
30 public class PrintAndExitAction implements ArgumentAction {
31
32 private final String message;
33
34 public PrintAndExitAction(String message) {
35 this.message = message;
36 }
37
38 /**
39 * Prints the message to {@link System#out} and terminates the program with
40 * the exit code 0. All the parameters are ignored.
41 */
42 @Override
43 public void run(ArgumentParser parser, Argument arg,
44 Map<String, Object> attrs, String flag, Object value) {
45 System.out.print(message);
46 System.exit(0);
47 }
48
49 @Override
50 public void onAttach(Argument arg) {
51 // Do nothing
52 }
53
54 /**
55 * @return always false because this action does not consume and argument
56 */
57 @Override
58 public boolean consumeArgument() {
59 return false;
60 }
61 }