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0.64285713
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org.perfectjpattern.core.behavioral.command.TestCommand.testCommandInvalidStateDetected
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1 PASS | |
0.42857143
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org.perfectjpattern.core.behavioral.command.TestExample.testCommand
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1 PASS | |
1 | //---------------------------------------------------------------------- | |
2 | // | |
3 | // PerfectJPattern: "Design patterns are good but components are better!" | |
4 | // Command.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.command; | |
22 | ||
23 | import org.apache.commons.lang.*; | |
24 | import org.perfectjpattern.core.api.behavioral.command.*; | |
25 | ||
26 | ||
27 | /** | |
28 | * Base core implementation of <code>ICommand</code> interface. | |
29 | * <br/> | |
30 | * | |
31 | * @see ICommand | |
32 | * | |
33 | * @param <P> Command Parameter context-specific. | |
34 | * @param <R> Command Result context-specific. | |
35 | * | |
36 | * @author <a href="mailto:bravegag@hotmail.com">Giovanni Azua</a> | |
37 | * @version $Revision: 1.0 $ $Date: Jun 23, 2007 3:00:54 AM $ | |
38 | */ | |
39 | public | |
40 | class Command<P, R> | |
41 | implements ICommand<P, R> | |
42 | { | |
43 | //------------------------------------------------------------------------ | |
44 | // public | |
45 | //------------------------------------------------------------------------ | |
46 | 4 |
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47 | Command() | |
48 | { | |
49 | // empty | |
50 | } | |
51 | ||
52 | //------------------------------------------------------------------------ | |
53 | 6 |
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54 | Command(IReceiver<P, R> aReceiver) | |
55 | { | |
56 | 6 | super(); |
57 | ||
58 | 6 | setReceiver(aReceiver); |
59 | } | |
60 | ||
61 | //------------------------------------------------------------------------ | |
62 | /** | |
63 | * {@inheritDoc} | |
64 | */ | |
65 | 5 |
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66 | getResult() | |
67 | throws IllegalStateException | |
68 | { | |
69 | 5 | if (theReceiver == null) |
70 | { | |
71 | throw new IllegalStateException("IReceiver was not set."); | |
72 | } | |
73 | ||
74 | 4 | R myResult = theReceiver.getResult(); |
75 | ||
76 | 4 | if (myResult == null) |
77 | { | |
78 | throw new IllegalStateException("No result available."); | |
79 | } | |
80 | ||
81 | 3 | return myResult; |
82 | } | |
83 | ||
84 | //------------------------------------------------------------------------ | |
85 | /** | |
86 | * {@inheritDoc} | |
87 | */ | |
88 | 3 |
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89 | setParameter(P aParameter) | |
90 | throws IllegalArgumentException | |
91 | { | |
92 | 3 | Validate.notNull(aParameter, "'aParameter' must not be null"); |
93 | ||
94 | 3 | theParameter = aParameter; |
95 | } | |
96 | ||
97 | //------------------------------------------------------------------------ | |
98 | /** | |
99 | * {@inheritDoc} | |
100 | */ | |
101 | 10 |
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102 | setReceiver(IReceiver<P, R> aReceiver) | |
103 | throws IllegalArgumentException | |
104 | { | |
105 | 10 | Validate.notNull(aReceiver, "'aReceiver' must not be null"); |
106 | ||
107 | 10 | theReceiver = aReceiver; |
108 | } | |
109 | ||
110 | //------------------------------------------------------------------------ | |
111 | /** | |
112 | * {@inheritDoc} | |
113 | */ | |
114 | 11 |
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115 | execute() | |
116 | throws IllegalStateException | |
117 | { | |
118 | 11 | if (theReceiver == null) |
119 | { | |
120 | throw new IllegalStateException("IReceiver was not set."); | |
121 | } | |
122 | ||
123 | 10 | if (theParameter != null) |
124 | { | |
125 | 3 | theReceiver.setParameter(theParameter); |
126 | } | |
127 | ||
128 | 10 | theReceiver.execute(); |
129 | } | |
130 | ||
131 | //------------------------------------------------------------------------ | |
132 | // members | |
133 | //------------------------------------------------------------------------ | |
134 | /** | |
135 | * The <code>IReceiver</code> instance. | |
136 | */ | |
137 | private IReceiver<P, R> theReceiver; | |
138 | ||
139 | /** | |
140 | * The <code>IParameter</code> instance. | |
141 | */ | |
142 | private P theParameter; | |
143 | } |
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