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1 | /******************************************************************************* | |
2 | *InternetCafe is a software solution that helps the management of Cybercafes | |
3 | * according with the ITALIAN DECREE LAW ON ANTI-TERROR MEASURES, 27 JULY 2005. | |
4 | * Copyright (C) 2006 Guido Angelo Ingenito | |
5 | ||
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version 2 | |
9 | * of the License, or (at your option) any later version. | |
10 | ||
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | |
19 | *******************************************************************************/ | |
20 | package base.jdbs.cryptography; | |
21 | ||
22 | import java.io.File; | |
23 | import java.security.KeyStore; | |
24 | import java.util.Collection; | |
25 | import java.util.Enumeration; | |
26 | import java.util.Hashtable; | |
27 | ||
28 | import org.apache.log4j.Logger; | |
29 | ||
30 | ||
31 | 0 | public abstract class KeyRing<K> { |
32 | ||
33 | 0 | private static final transient Logger logger = Logger.getLogger(KeyRing.class.getName()); |
34 | ||
35 | /**The AsymmetricKeyRings' element collection.**/ | |
36 | 0 | private Hashtable<Integer, K> element = new Hashtable<Integer , K>(); |
37 | ||
38 | /**The current element id.**/ | |
39 | 0 | private int currentElementId = 0; |
40 | ||
41 | /** | |
42 | * This method computes a new Id for a KeyPair. | |
43 | * @return A new Id for a KeyPair. | |
44 | */ | |
45 | protected Integer nextElementId(){ | |
46 | 0 | return ++currentElementId; |
47 | } | |
48 | ||
49 | /** | |
50 | * This method adds to the KeyRing the target object. | |
51 | * @param id The id associated to the object. | |
52 | * @param object The object to be added. | |
53 | */ | |
54 | protected void add(Integer id, K object){ | |
55 | 0 | this.element.put(id, object); |
56 | 0 | } |
57 | ||
58 | /** | |
59 | * This method removes a stored element from the KeyRing. | |
60 | * @param id The id associated to the element to remove. | |
61 | */ | |
62 | protected void remove(Integer id){ | |
63 | 0 | this.element.remove(id); |
64 | 0 | } |
65 | ||
66 | /** | |
67 | * This method removes all the stored elements from the KeyRing. | |
68 | */ | |
69 | protected void removeAll(){ | |
70 | 0 | Enumeration keys = element.keys(); |
71 | 0 | for(;keys.hasMoreElements();) |
72 | 0 | this.element.remove(keys.nextElement()); |
73 | 0 | } |
74 | ||
75 | /** | |
76 | * This method retrieves a stored element by id. | |
77 | * @param id The id associated to the element to retrieve. | |
78 | * @return The stored element otherwise null. | |
79 | */ | |
80 | protected K get(Integer id){ | |
81 | 0 | return this.element.get(id); |
82 | } | |
83 | ||
84 | /** | |
85 | * This method returns a collection of all stored elements. | |
86 | * @return A collection of stored elements. | |
87 | */ | |
88 | protected Collection<K> getAll(){ | |
89 | 0 | return this.element.values(); |
90 | } | |
91 | ||
92 | /** | |
93 | * This method saves the content of the key ring in a file system location. | |
94 | * @param location The location where the key ring must be stored. | |
95 | * @param password The password associated to the file. | |
96 | */ | |
97 | public abstract void store(File location, String password); | |
98 | ||
99 | /** | |
100 | * This method retrieves the content of a stored key ring from a file system location. | |
101 | * @param location The location from wich the content of the key ring must be retrieved. | |
102 | * @param password The password associated to the file. | |
103 | * @return The KeyStore associated to the input location, null if the input location isn't a valid key store archive. | |
104 | */ | |
105 | public abstract KeyStore retrieve(File location, String password); | |
106 | ||
107 | } |
this report was generated by version 1.0.5 of jcoverage. |
copyright © 2003, jcoverage ltd. all rights reserved. |