| SafeProperties.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 package com.liferay.portal.kernel.util;
24
25 import java.util.Properties;
26
27 /**
28 * <a href="SafeProperties.java.html"><b><i>View Source</i></b></a>
29 *
30 * @author Brian Wing Shun Chan
31 *
32 */
33 public class SafeProperties extends Properties {
34
35 public SafeProperties() {
36 super();
37 }
38
39 public synchronized Object get(Object key) {
40 Object value = super.get(key);
41
42 value = _decode((String)value);
43
44 return value;
45 }
46
47 public String getEncodedProperty(String key) {
48 return super.getProperty(key);
49 }
50
51 public String getProperty(String key) {
52 return (String)get(key);
53 }
54
55 public synchronized Object put(Object key, Object value) {
56 if (key == null) {
57 return null;
58 }
59 else {
60 if (value == null) {
61 return super.remove(key);
62 }
63 else {
64 value = _encode((String)value);
65
66 return super.put(key, value);
67 }
68 }
69 }
70
71 public synchronized Object remove(Object key) {
72 if (key == null) {
73 return null;
74 }
75 else {
76 return super.remove(key);
77 }
78 }
79
80 private static String _decode(String value) {
81 return StringUtil.replace(
82 value, _SAFE_NEWLINE_CHARACTER, StringPool.NEW_LINE);
83 }
84
85 private static String _encode(String value) {
86 return StringUtil.replace(
87 value,
88 new String[] {
89 StringPool.RETURN_NEW_LINE, StringPool.NEW_LINE,
90 StringPool.RETURN
91 },
92 new String[] {
93 _SAFE_NEWLINE_CHARACTER, _SAFE_NEWLINE_CHARACTER,
94 _SAFE_NEWLINE_CHARACTER
95 });
96 }
97
98 private static final String _SAFE_NEWLINE_CHARACTER =
99 "_SAFE_NEWLINE_CHARACTER_";
100
101 }