Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
MelatiShoppingConfig |
|
| 2.0;2 |
1 | /* | |
2 | * $Source: /usr/cvsroot/org/paneris/melati/shopping/MelatiShoppingConfig.java,v $ | |
3 | * $Revision: 1.3 $ | |
4 | * | |
5 | * Copyright (C) 2000 Tim Joyce | |
6 | * | |
7 | * Part of Melati (http://melati.org), a framework for the rapid | |
8 | * development of clean, maintainable web applications. | |
9 | * | |
10 | * Melati is free software; Permission is granted to copy, distribute | |
11 | * and/or modify this software under the terms either: | |
12 | * | |
13 | * a) the GNU General Public License as published by the Free Software | |
14 | * Foundation; either version 2 of the License, or (at your option) | |
15 | * any later version, | |
16 | * | |
17 | * or | |
18 | * | |
19 | * b) any version of the Melati Software License, as published | |
20 | * at http://melati.org | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License and | |
23 | * the Melati Software License along with this program; | |
24 | * if not, write to the Free Software Foundation, Inc., | |
25 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA to obtain the | |
26 | * GNU General Public License and visit http://melati.org to obtain the | |
27 | * Melati Software License. | |
28 | * | |
29 | * Feel free to contact the Developers of Melati (http://melati.org), | |
30 | * if you would like to work out a different arrangement than the options | |
31 | * outlined here. It is our intention to allow Melati to be used by as | |
32 | * wide an audience as possible. | |
33 | * | |
34 | * This program is distributed in the hope that it will be useful, | |
35 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
36 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
37 | * GNU General Public License for more details. | |
38 | * | |
39 | * Contact details for copyright holder: | |
40 | * | |
41 | * Tim Joyce <timj@paneris.org> | |
42 | * http://paneris.org/ | |
43 | * 68 Sandbanks Rd, Poole, Dorset. BH14 8BY. UK | |
44 | */ | |
45 | ||
46 | package org.paneris.jammyjoes.shopping; | |
47 | ||
48 | import java.io.FileNotFoundException; | |
49 | import java.io.IOException; | |
50 | import java.util.Properties; | |
51 | ||
52 | import org.melati.util.InstantiationPropertyException; | |
53 | import org.melati.util.MelatiBugMelatiException; | |
54 | import org.melati.util.PropertiesUtils; | |
55 | ||
56 | /** | |
57 | * The MelatiShoppingConfig provides configuration information for the Melati | |
58 | * Shopping Interface | |
59 | */ | |
60 | ||
61 | public class MelatiShoppingConfig { | |
62 | ||
63 | 0 | private Properties configuration = null; |
64 | 0 | private String ShoppingTrolleyProp = null; |
65 | 0 | private String ShoppingTrolleyItemProp = null; |
66 | private static Class clazz; | |
67 | static { | |
68 | try { | |
69 | 0 | clazz = Class.forName("org.paneris.jammyjoes.shopping.ShoppingTrolley"); |
70 | 0 | } catch (ClassNotFoundException e) { |
71 | 0 | throw new MelatiBugMelatiException("Out of date Class.forName", e); |
72 | 0 | } |
73 | 0 | } |
74 | ||
75 | /** | |
76 | * Construct a MelatiShoppingConfig object. if the propeties file is not found | |
77 | * default properties will be used | |
78 | * | |
79 | * @throws ShoppingConfigException - if there is an error loading the file | |
80 | */ | |
81 | 0 | public MelatiShoppingConfig() throws ShoppingConfigException { |
82 | ||
83 | 0 | String pref = clazz.getName() + "."; |
84 | 0 | ShoppingTrolleyProp = pref + "trolley"; |
85 | 0 | ShoppingTrolleyItemProp = pref + "item"; |
86 | ||
87 | try { | |
88 | 0 | configuration = PropertiesUtils.fromResource(clazz, pref + "properties"); |
89 | 0 | } catch (FileNotFoundException e) { |
90 | 0 | System.err.println("Could not find properties file: " + e.toString()); |
91 | 0 | configuration = new Properties(); |
92 | 0 | } catch (IOException e) { |
93 | 0 | throw new ShoppingConfigException(e.toString()); |
94 | 0 | } |
95 | ||
96 | 0 | } |
97 | ||
98 | /** | |
99 | * get a ShoppingTrolley Object as defined in the properties file | |
100 | * if no definition is found, a default DefaultShoppingTrolley will be returned | |
101 | * | |
102 | * @return - a shopping trolley object as defined in the properties file | |
103 | * | |
104 | * @throws InstantiationPropertyException - if we cannot instantiate the object | |
105 | */ | |
106 | public ShoppingTrolley getShoppingTrolley() throws InstantiationPropertyException { | |
107 | 0 | return (ShoppingTrolley) PropertiesUtils.instanceOfNamedClass( |
108 | configuration, | |
109 | ShoppingTrolleyProp, | |
110 | "org.paneris.jammyjoes.shopping.ShoppingTrolley", | |
111 | "org.paneris.jammyjoes.shopping.JammyJoesShoppingTrolley"); | |
112 | } | |
113 | ||
114 | /** | |
115 | * get a ShoppingTrolleyItem Object as defined in the properties file | |
116 | * if no definition is found, a default DefaultShoppingTrolleyItem will be | |
117 | * returned | |
118 | * | |
119 | * @return - a shopping trolley item object as defined in the properties file | |
120 | * | |
121 | * @throws InstantiationPropertyException - if we cannot instantiate the object | |
122 | */ | |
123 | public ShoppingTrolleyItem getShoppingTrolleyItem() throws InstantiationPropertyException { | |
124 | 0 | return (ShoppingTrolleyItem) PropertiesUtils.instanceOfNamedClass( |
125 | configuration, | |
126 | ShoppingTrolleyItemProp, | |
127 | "org.paneris.jammyjoes.shopping.ShoppingTrolleyItem", | |
128 | "org.paneris.jammyjoes.shopping.JammyJoesShoppingTrolley"); | |
129 | } | |
130 | ||
131 | } |