gsbase - 2.0.1

Clover coverage report - gsbase - 2.0.1

Coverage timestamp: Sat Jan 1 2005 12:30:02 EST

FRAMES NO FRAMES

file stats:	LOC:	138		Methods:	5
	NCLOC:	45		Classes:	1

Source file

Conditionals

Statements

Methods

TOTAL

DefaultComponentLoader.java

75%

66.7%

80%

71%

1		/*
2		* Copyright (c) 1998, 2005 Gargoyle Software Inc. All rights reserved.
3		*
4		* Redistribution and use in source and binary forms, with or without
5		* modification, are permitted provided that the following conditions are met:
6		*
7		* 1. Redistributions of source code must retain the above copyright notice,
8		* this list of conditions and the following disclaimer.
9		* 2. Redistributions in binary form must reproduce the above copyright notice,
10		* this list of conditions and the following disclaimer in the documentation
11		* and/or other materials provided with the distribution.
12		* 3. The end-user documentation included with the redistribution, if any, must
13		* include the following acknowledgment:
14		*
15		* "This product includes software developed by Gargoyle Software Inc.
16		* (http://www.GargoyleSoftware.com/)."
17		*
18		* Alternately, this acknowledgment may appear in the software itself, if
19		* and wherever such third-party acknowledgments normally appear.
20		* 4. The name "Gargoyle Software" must not be used to endorse or promote
21		* products derived from this software without prior written permission.
22		* For written permission, please contact info@GargoyleSoftware.com.
23		* 5. Products derived from this software may not be called "GSBase", nor may
24		* "GSBase" appear in their name, without prior written permission of
25		* Gargoyle Software Inc.
26		*
27		* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
28		* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
29		* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GARGOYLE
30		* SOFTWARE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
31		* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32		* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
33		* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
34		* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
35		* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
36		* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37		*/
38		package com.gargoylesoftware.base.gui;
39
40		import com.gargoylesoftware.base.util.DetailedIllegalArgumentException;
41		import com.gargoylesoftware.base.util.DetailedNullPointerException;
42		import java.awt.Component;
43		import javax.swing.JScrollPane;
44
45		/**
46		* A default implementation of ComponentLoader that uses reflection
47		* to instantiate components.
48		*
49		* @version $Revision: 1.5 $
50		* @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a>
51		*/
52		public class DefaultComponentLoader implements ComponentLoader {
53
54		private final Class clazz_;
55		private final boolean wrapInJScrollPane_;
56
57
58		/**
59		* Create a new loader.
60		* @param className The name of the class that will be used to create the new object.
61		* This class must have a public no-arg constructor and must be an instance of
62		* java.awt.Component.
63		* @throws ClassNotFoundException If the class cannot be found.
64		*/
65	1	public DefaultComponentLoader( final String className ) throws ClassNotFoundException {
66	1	this( className == null ? null : Class.forName(className) );
67		}
68
69		/**
70		* Create a new loader.
71		*
72		* @param clazz The class that will be used to create the new object. This
73		* class must have a public no-arg constructor and must be an instance
74		* of java.awt.Component.
75		*/
76	1	public DefaultComponentLoader( final Class clazz ) {
77	1	this( clazz, false );
78		}
79
80
81		/**
82		* Create a new loader.
83		*
84		* @param clazz The class that will be used to create the new object. This
85		* class must have a public no-arg constructor and must be an instance
86		* of java.awt.Component.
87		* @param wrapInJScrollPane If true then the returned component will be a
88		* JScrollPane which contains the loaded component.
89		*/
90	6	public DefaultComponentLoader( final Class clazz, final boolean wrapInJScrollPane ) {
91	6	assertNotNull("clazz", clazz);
92	4	if( Component.class.isAssignableFrom(clazz) == false ) {
93	1	throw new DetailedIllegalArgumentException("clazz", clazz, "Not instance of Component");
94		}
95	3	try {
96	3	clazz.getConstructor( new Class[0] );
97		}
98		catch( final NoSuchMethodException e ) {
99	2	throw new DetailedIllegalArgumentException("clazz", clazz, "Does not have a public default constructor");
100		}
101	1	clazz_ = clazz;
102
103	1	wrapInJScrollPane_ = wrapInJScrollPane;
104		}
105
106
107		/**
108		* Load the component.
109		*
110		* @return the loaded component.
111		* @throws Exception If something went wrong during the creation of the component.
112		*/
113	0	public Component loadComponent() throws Exception {
114	0	final Component component = (Component)clazz_.newInstance();
115	0	final Component result;
116	0	if( wrapInJScrollPane_ ) {
117	0	result = new JScrollPane(component);
118		}
119		else {
120	0	result = component;
121		}
122	0	return result;
123		}
124
125
126		/**
127		* Throw an Exception if the specified object is null.
128		*
129		* @param fieldName The name of the field that we are checking.
130		* @param object The value of the field that we are checking
131		*/
132	6	protected final void assertNotNull( final String fieldName, final Object object ) {
133	6	if( object == null ) {
134	2	throw new DetailedNullPointerException(fieldName);
135		}
136		}
137		}
138