1 /********************************************************************************
2 * InternetCafe is a software solution that helps the management of Cybercafes
3 * according with the ITALIAN DECREE LAW ON ANTI-TERROR MEASURES, 27 JULY 2005.
4 * Copyright (C) 2006 Guido Angelo Ingenito
5
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
10
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19 *******************************************************************************/
20 package ui.command;
21
22 import org.apache.log4j.Logger;
23
24 public class CommandExecutor {
25
26 private static final transient Logger logger = Logger
27 .getLogger(CommandExecutor.class.getName());
28
29 private static CommandExecutor instance = null;
30
31 public static CommandExecutor getInstance() {
32 return instance == null ? instance = new CommandExecutor() : instance;
33 }
34
35 protected CommandExecutor() {
36
37 }
38
39 public synchronized void executeCommand(final Command command,
40 boolean synchronous) {
41 try {
42 Thread thread = new Thread() {
43 public void run() {
44 try {
45 command.prologo();
46 command.execution();
47 command.epilogue();
48 } catch (Exception ex) {
49 logger.error(ex.getMessage());
50 ex.printStackTrace();
51 }
52
53 }
54 };
55 thread.start();
56 if (synchronous)
57 thread.join();
58 } catch (Exception ex) {
59 logger.error(ex.getMessage());
60 ex.printStackTrace();
61 }
62 }
63 }