1 /***
2 * Redistribution and use in source and binary forms, with or without
3 * modification, are permitted provided that the following conditions are
4 * met :
5 *
6 * . Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer.
8 *
9 * . Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * . The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $Id: Configuration.java 359 2005-12-23 14:26:53Z mat007 $
29 */
30
31 package palmed.option;
32
33 import java.util.Hashtable;
34
35 /***
36 * This class stores configuration keys and values.
37 *
38 * @author Mathieu Champlon
39 * @version $Revision: 359 $ $Date: 2005-12-23 23:26:53 +0900 (ven., 23 déc. 2005) $
40 */
41 public final class Configuration
42 {
43 /***
44 * The configuration pairs.
45 */
46 private final Hashtable elements_;
47
48 /***
49 * Create a configuration manager.
50 */
51 public Configuration()
52 {
53 elements_ = new Hashtable();
54 }
55
56 /***
57 * Retrieve a boolean value.
58 * <p>
59 * If the key does not exist it gets added with the initial value.
60 *
61 * @param key the key to look for
62 * @param initial the default value if the key is not found
63 * @return the value associated to the given key
64 */
65 public boolean get( final String key, final boolean initial )
66 {
67 return ((Boolean)get( key, new Boolean( initial ) )).booleanValue();
68 }
69
70 /***
71 * Retrieve a string value.
72 * <p>
73 * If the key does not exist it gets added with the initial value.
74 *
75 * @param key the key to look for
76 * @param initial the default value if the key is not found
77 * @return the value associated to the given key
78 */
79 public String get( final String key, final String initial )
80 {
81 return (String)get( key, (Object)initial );
82 }
83
84 private Object get( final String key, final Object initial )
85 {
86 if( elements_.containsKey( key ) )
87 return elements_.get( key );
88 elements_.put( key, initial );
89 return initial;
90 }
91 }