1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17 package org.apache.commons.configuration.web;
18
19 import java.util.Iterator;
20 import java.util.List;
21 import javax.servlet.Servlet;
22 import javax.servlet.ServletConfig;
23
24 import org.apache.commons.collections.iterators.EnumerationIterator;
25 import org.apache.commons.configuration.PropertyConverter;
26
27 /***
28 * A configuration wrapper around a {@link ServletConfig}. This configuration
29 * is read only, adding or removing a property will throw an
30 * UnsupportedOperationException.
31 *
32 * @author <a href="mailto:ebourg@apache.org">Emmanuel Bourg</a>
33 * @version $Revision$, $Date: 2005-10-12 21:01:43 +0200 (Wed, 12 Oct 2005) $
34 * @since 1.1
35 */
36 public class ServletConfiguration extends BaseWebConfiguration
37 {
38 /*** Stores a reference to the wrapped <code>ServletConfig</code>.*/
39 protected ServletConfig config;
40
41 /***
42 * Create a ServletConfiguration using the initialization parameter of
43 * the specified servlet.
44 *
45 * @param servlet the servlet
46 */
47 public ServletConfiguration(Servlet servlet)
48 {
49 this(servlet.getServletConfig());
50 }
51
52 /***
53 * Create a ServletConfiguration using the servlet initialization parameters.
54 *
55 * @param config the servlet configuration
56 */
57 public ServletConfiguration(ServletConfig config)
58 {
59 this.config = config;
60 }
61
62 public Object getProperty(String key)
63 {
64 Object value = config.getInitParameter(key);
65 List list = PropertyConverter.split((String) value, getDelimiter());
66
67 return list.size() > 1 ? list : value;
68 }
69
70 public Iterator getKeys()
71 {
72 return new EnumerationIterator(config.getInitParameterNames());
73 }
74 }