1 /*
2 * Copyright (c) 2009-2012 The 99 Software Foundation
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
20 * THE SOFTWARE.
21 */
22 package org.nnsoft.sameas4j.cache;
23
24 import static java.lang.String.format;
25
26 import java.io.Serializable;
27
28 /**
29 * The {@link Cache} key representation.
30 */
31 public final class CacheKey implements Serializable {
32
33 /**
34 * The serialVersionUID constant.
35 */
36 private static final long serialVersionUID = 634054729365372230L;
37
38 /**
39 * The sameas service.
40 */
41 private final String service;
42
43 /**
44 * The sameas service "Last-modified" header.
45 */
46 private final long lastModified;
47
48 /**
49 * Creates a new {@code Cache} key instance.
50 *
51 * @param service The sameas service
52 * @param lastModified The sameas service "Last-modified" header
53 */
54 public CacheKey(String service, long lastModified) {
55 if (service == null) {
56 throw new IllegalArgumentException("Parameter 'service' must not be null");
57 }
58
59 this.service = service;
60 this.lastModified = lastModified;
61 }
62
63 /**
64 * Returns the sameas service.
65 *
66 * @return The sameas service
67 */
68 public String getService() {
69 return this.service;
70 }
71
72 /**
73 * Returns the sameas service "Last-modified" header.
74 *
75 * @return The sameas service "Last-modified" header
76 */
77 public long getLastModified() {
78 return this.lastModified;
79 }
80
81 /**
82 * {@inheritDoc}
83 */
84 @Override
85 public int hashCode() {
86 final int prime = 31;
87 int result = 1;
88 result = prime * result + (int) (lastModified ^ (lastModified >>> 32));
89 result = prime * result + this.service.hashCode();
90 return result;
91 }
92
93 /**
94 * {@inheritDoc}
95 */
96 @Override
97 public boolean equals(Object obj) {
98 if (this == obj) {
99 return true;
100 }
101
102 if (obj == null) {
103 return false;
104 }
105
106 if (getClass() != obj.getClass()) {
107 return false;
108 }
109
110 CacheKey other = (CacheKey) obj;
111 if (this.lastModified != other.getLastModified()) {
112 return false;
113 }
114 if (this.service == null) {
115 if (other.getService() != null) {
116 return false;
117 }
118 } else if (!this.service.equals(other.getService())) {
119 return false;
120 }
121
122 return true;
123 }
124
125 /**
126 * {@inheritDoc}
127 */
128 @Override
129 public String toString() {
130 return format("CacheKey (service=%s, lastModified=%s)", service, lastModified);
131 }
132
133 }