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org.apache.commons.configuration.beanutils.ConfigurationDynaClass	89%	100%

1		/*
2		* Copyright 2001-2004 The Apache Software Foundation.
3		*
4		* Licensed under the Apache License, Version 2.0 (the "License")
5		* you may not use this file except in compliance with the License.
6		* You may obtain a copy of the License at
7		*
8		* http://www.apache.org/licenses/LICENSE-2.0
9		*
10		* Unless required by applicable law or agreed to in writing, software
11		* distributed under the License is distributed on an "AS IS" BASIS,
12		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13		* See the License for the specific language governing permissions and
14		* limitations under the License.
15		*/
16
17		package org.apache.commons.configuration.beanutils;
18
19		import java.util.Iterator;
20		import java.util.ArrayList;
21		import java.util.List;
22
23		import org.apache.commons.beanutils.DynaBean;
24		import org.apache.commons.beanutils.DynaClass;
25		import org.apache.commons.beanutils.DynaProperty;
26		import org.apache.commons.configuration.Configuration;
27		import org.apache.commons.logging.Log;
28		import org.apache.commons.logging.LogFactory;
29
30		/**
31		* The <tt>ConfigurationDynaClass</tt> dynamically determines properties for
32		* a <code>ConfigurationDynaBean</code> from a wrapped configuration-collection
33		* {@link org.apache.commons.configuration.Configuration} instance.
34		*
35		* @author <a href="mailto:ricardo.gladwell@btinternet.com">Ricardo Gladwell</a>
36		* @version $Revision: 1.4 $, $Date: 2004/09/21 17:49:39 $
37		* @since 1.0-rc1
38		*/
39		public class ConfigurationDynaClass implements DynaClass
40		{
41	10	private final static Log log = LogFactory.getLog(ConfigurationDynaClass.class);
42
43		Configuration configuration;
44
45		/**
46		* Construct an instance of a <code>ConfigurationDynaClass</code>
47		* wrapping the specified <code>Configuration</code> instance.
48		* @param configuration <code>Configuration</code> instance.
49		*/
50		public ConfigurationDynaClass(Configuration configuration)
51		{
52	11	super();
53	11	if (log.isTraceEnabled()) log.trace("ConfigurationDynaClass(" + configuration + ")");
54	11	this.configuration = configuration;
55	11	}
56
57		/**
58		* @see org.apache.commons.beanutils.DynaClass#getDynaProperty(java.lang.String)
59		*/
60		public DynaProperty getDynaProperty(String name)
61		{
62	36	if (log.isTraceEnabled())
63		{
64	0	log.trace("getDynaProperty(" + name + ")");
65		}
66
67	36	if (name == null)
68		{
69	1	throw new IllegalArgumentException("No such property name=[" + name + "]");
70		}
71
72	35	Object value = configuration.getProperty(name);
73	35	if (value == null)
74		{
75	1	return null;
76		}
77		else
78		{
79	34	Class type = value.getClass();
80
81	34	if (type == Byte.class)
82		{
83	1	type = Byte.TYPE;
84		}
85	34	if (type == Character.class)
86		{
87	1	type = Character.TYPE;
88		}
89	33	else if (type == Boolean.class)
90		{
91	4	type = Boolean.TYPE;
92		}
93	29	else if (type == Double.class)
94		{
95	2	type = Double.TYPE;
96		}
97	27	else if (type == Float.class)
98		{
99	2	type = Float.TYPE;
100		}
101	25	else if (type == Integer.class)
102		{
103	3	type = Integer.TYPE;
104		}
105	22	else if (type == Long.class)
106		{
107	2	type = Long.TYPE;
108		}
109	20	else if (type == Short.class)
110		{
111	2	type = Short.TYPE;
112		}
113
114	34	return new DynaProperty(name, type);
115		}
116		}
117
118		/**
119		* @see org.apache.commons.beanutils.DynaClass#getDynaProperties()
120		*/
121		public DynaProperty[] getDynaProperties()
122		{
123	1	if (log.isTraceEnabled())
124		{
125	0	log.trace("getDynaProperties()");
126		}
127
128	1	Iterator keys = configuration.getKeys();
129	1	List properties = new ArrayList();
130	27	while (keys.hasNext())
131		{
132	26	String key = (String) keys.next();
133	26	DynaProperty property = getDynaProperty(key);
134	26	properties.add(property);
135		}
136
137	1	DynaProperty[] propertyArray = new DynaProperty[properties.size()];
138	1	properties.toArray(propertyArray);
139	1	if (log.isDebugEnabled())
140		{
141	0	log.debug("Found " + properties.size() + " properties.");
142		}
143
144	1	return propertyArray;
145		}
146
147		/**
148		* @see org.apache.commons.beanutils.DynaClass#getName()
149		*/
150		public String getName()
151		{
152	0	return ConfigurationDynaBean.class.getName();
153		}
154
155		/**
156		* @see org.apache.commons.beanutils.DynaClass#newInstance()
157		*/
158		public DynaBean newInstance() throws IllegalAccessException, InstantiationException
159		{
160	0	return new ConfigurationDynaBean(configuration);
161		}
162
163		}

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