1 //----------------------------------------------------------------------
2 //
3 // PerfectJPattern: "Design patterns are good but components are better!"
4 // Application.java Copyright (c) 2009 Giovanni Azua Garcia
5 // bravegag@hotmail.com
6 //
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License
9 // as published by the Free Software Foundation; either version 3
10 // of the License, or (at your option) any later version.
11 //
12 // This program is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
16 //
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, see <http://www.gnu.org/licenses/>.
19 //
20 //----------------------------------------------------------------------
21 package org.perfectjpattern.core.behavioral.chainofresponsibility;
22
23 import org.perfectjpattern.core.api.behavioral.chainofresponsibility.*;
24 import org.slf4j.*;
25
26 /**
27 * Concrete implementation of an Application
28 *
29 * @author <a href="mailto:bravegag@hotmail.com">Giovanni Azua</a>
30 * @version $Revision: 1.0 $Date: Apr 19, 2008 12:24:57 PM $
31 */
32 public
33 class Application
34 implements IHelpAware, IPrintAware
35 {
36 //------------------------------------------------------------------------
37 // public
38 //------------------------------------------------------------------------
39 /**
40 * {@inheritDoc}
41 */
42 public IParameterlessHandler
43 getHelpHandler()
44 {
45 return theHelpHandler;
46 }
47
48 //------------------------------------------------------------------------
49 /**
50 * {@inheritDoc}
51 */
52 public IParameterlessHandler
53 getPrintHandler()
54 {
55 return thePrintHandler;
56 }
57
58 //------------------------------------------------------------------------
59 // protected
60 //------------------------------------------------------------------------
61 protected static void
62 setLogger(Logger aLogger)
63 {
64 theLogger = aLogger;
65 }
66
67 //------------------------------------------------------------------------
68 // inner classes
69 //------------------------------------------------------------------------
70 /**
71 * Inner implementation that handles Help requests
72 */
73 private IParameterlessHandler theHelpHandler =
74 new AbstractParameterlessHandler()
75 {
76 //--------------------------------------------------------------------
77 @Override
78 public boolean
79 canHandle(NullRequest aRequest)
80 throws IllegalArgumentException
81 {
82 return true;
83 }
84
85 //--------------------------------------------------------------------
86 public void
87 handle()
88 {
89 theLogger.debug("Application is displaying Help ...");
90 }
91 };
92
93 //------------------------------------------------------------------------
94 /**
95 * Inner implementation that handles Print requests
96 */
97 private IParameterlessHandler thePrintHandler =
98 new AbstractParameterlessHandler()
99 {
100 //--------------------------------------------------------------------
101 @Override
102 public boolean
103 canHandle(NullRequest aRequest)
104 throws IllegalArgumentException
105 {
106 return true;
107 }
108
109 //--------------------------------------------------------------------
110 public void
111 handle()
112 {
113 theLogger.debug("Application is Printing ...");
114 }
115 };
116
117 //------------------------------------------------------------------------
118 // members
119 //------------------------------------------------------------------------
120 /**
121 * Provides logging facilities for this class instance
122 */
123 private static Logger theLogger = LoggerFactory.getLogger(Application.
124 class);
125 }