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1 package org.shiftone.cache.adaptor;
2
3
4
5 import org.apache.commons.lang.exception.NestableRuntimeException;
6 import org.apache.jcs.JCS;
7 import org.apache.jcs.access.CacheAccess;
8 import org.apache.jcs.access.exception.CacheException;
9 import org.apache.jcs.engine.behavior.ICompositeCacheAttributes;
10 import org.shiftone.cache.Cache;
11
12
13
17 public class JcsCache implements Cache
18 {
19
20 private final CacheAccess cache;
21
22 public JcsCache()
23 {
24 this("default");
25 }
26
27 public JcsCache(CacheAccess access)
28 {
29 this.cache = access;
30 }
31
32 public JcsCache(String  name)
33 {
34
35 try
36 {
37 cache = JCS.getInstance(name);
38 }
39 catch (CacheException e)
40 {
41 throw new NestableRuntimeException("new JcsCache : " + name, e);
42 }
43 }
44
45
46 public void addObject(Object userKey, Object cacheObject)
47 {
48
49 try
50 {
51 cache.put(userKey, cacheObject);
52 }
53 catch (CacheException e)
54 {
55 throw new NestableRuntimeException("addObject", e);
56 }
57 }
58
59
60 public Object getObject(Object key)
61 {
62 return cache.get(key);
63 }
64
65
66
69 public int size()
70 {
71 return -1;
72 }
73
74
75 public void remove(Object key)
76 {
77
78 try
79 {
80 cache.remove(key);
81 }
82 catch (CacheException e)
83 {
84 throw new NestableRuntimeException("remove", e);
85 }
86 }
87
88
89 public void clear()
90 {
91
92 try
93 {
94 cache.remove();
95 }
96 catch (CacheException e)
97 {
98 throw new NestableRuntimeException("remove", e);
99 }
100 }
101
102
103 public String toString()
104 {
105
106 ICompositeCacheAttributes attributes = cache.getCacheAttributes();
107
108 return "JCS[" + attributes.getCacheName() + ":" + attributes.getMemoryCacheName() + ":" + attributes.getMaxObjects() + "]";
111 }
112 }
113 |
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