Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
Cloner |
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| 0.0;0 |
1 | /* | |
2 | * | |
3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
4 | * | |
5 | * Copyright 2007-2008 Sun Microsystems, Inc. All rights reserved. | |
6 | * | |
7 | * The contents of this file are subject to the terms of either the GNU | |
8 | * General Public License Version 2 only ("GPL") or the Common Development | |
9 | * and Distribution License("CDDL") (collectively, the "License"). You | |
10 | * may not use this file except in compliance with the License. You can obtain | |
11 | * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html | |
12 | * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific | |
13 | * language governing permissions and limitations under the License. | |
14 | * | |
15 | * When distributing the software, include this License Header Notice in each | |
16 | * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt. | |
17 | * Sun designates this particular file as subject to the "Classpath" exception | |
18 | * as provided by Sun in the GPL Version 2 section of the License file that | |
19 | * accompanied this code. If applicable, add the following below the License | |
20 | * Header, with the fields enclosed by brackets [] replaced by your own | |
21 | * identifying information: "Portions Copyrighted [year] | |
22 | * [name of copyright owner]" | |
23 | * | |
24 | * Contributor(s): | |
25 | * | |
26 | * If you wish your version of this file to be governed by only the CDDL or | |
27 | * only the GPL Version 2, indicate your decision by adding "[Contributor] | |
28 | * elects to include this software in this distribution under the [CDDL or GPL | |
29 | * Version 2] license." If you don't indicate a single choice of license, a | |
30 | * recipient has the option to distribute your version of this file under | |
31 | * either the CDDL, the GPL Version 2 or to extend the choice of license to | |
32 | * its licensees as provided above. However, if you add GPL Version 2 code | |
33 | * and therefore, elected the GPL Version 2 license, then the option applies | |
34 | * only if the new code is made subject to such option by the copyright | |
35 | * holder. | |
36 | * | |
37 | */ | |
38 | ||
39 | package com.sun.grizzly.util; | |
40 | ||
41 | import com.sun.grizzly.Controller; | |
42 | import java.lang.reflect.Constructor; | |
43 | import java.util.logging.Level; | |
44 | ||
45 | /** | |
46 | * Class Cloner creates a clone of given object, | |
47 | * which should implement interface <code>Copyable</code> | |
48 | * | |
49 | * @author Alexey Stashok | |
50 | */ | |
51 | 0 | public class Cloner { |
52 | /** | |
53 | * Method creates a clone of given object pattern | |
54 | * Pattern parameter should implement <class>Copyable</class> interface | |
55 | * | |
56 | * @param pattern represents object, which will be cloned. Should implement <code>Copyable</code> | |
57 | * @return clone | |
58 | */ | |
59 | public static <T extends Copyable> T clone(T pattern) { | |
60 | try { | |
61 | 19 | T copy = null; |
62 | ||
63 | try { | |
64 | // Try default Constructor | |
65 | 19 | copy = (T) pattern.getClass().newInstance(); |
66 | 0 | } catch(InstantiationException e) { |
67 | // If didn't succeed with default - try other public constructors | |
68 | 0 | Constructor[] constructors = pattern.getClass().getConstructors(); |
69 | 0 | if (constructors.length == 0) { |
70 | // if there are no public constructors - try others | |
71 | 0 | constructors = pattern.getClass().getDeclaredConstructors(); |
72 | } | |
73 | ||
74 | 0 | for(Constructor constructor : constructors) { |
75 | 0 | constructor.setAccessible(true); |
76 | 0 | Object[] params = |
77 | new Object[constructor.getParameterTypes().length]; | |
78 | ||
79 | try { | |
80 | 0 | copy = (T) constructor.newInstance(params); |
81 | 0 | break; |
82 | 0 | } catch(InstantiationException ee) { |
83 | } | |
84 | } | |
85 | 19 | } |
86 | ||
87 | 19 | if (copy == null) { |
88 | 0 | throw new InstantiationException("Could not create " + |
89 | "an instance of class: " + pattern.getClass().getName()); | |
90 | } | |
91 | ||
92 | 19 | pattern.copyTo(copy); |
93 | 19 | return copy; |
94 | 0 | } catch (Exception e) { |
95 | 0 | if (Controller.logger().isLoggable(Level.WARNING)) { |
96 | 0 | Controller.logger().log(Level.WARNING, "Error copying objects!", e); |
97 | } | |
98 | 0 | throw new RuntimeException("Error copying objects! " + e.getClass().getName() + ": " + e.getMessage()); |
99 | } | |
100 | } | |
101 | } |