|
1 package org.shiftone.cache.test;
2
3
4
5 import junit.framework.TestCase;
6
7 import org.shiftone.cache.Cache;
8 import org.shiftone.cache.adaptor.MapCache;
9 import org.shiftone.cache.decorator.soft.SoftCache;
10
11 import java.lang.ref.Reference  ;
12
13 import java.util.ArrayList ;
14 import java.util.Hashtable ;
15 import java.util.List ;
16
17
18 public class SoftCacheTestCase extends TestCase
19 {
20
21 public void testSimple() throws Exception
22 {
23
24 Cache cache1 = new MapCache(new Hashtable ());
25 Cache cache2 = new SoftCache(cache1);
26
27 cache2.addObject("key", "value");
28 assertEquals("value", cache2.getObject("key"));
29 }
30
31
32 public void testReference() throws Exception
33 {
34
35 Object inObject = createBigObject();
36 Object outObject;
37 MapCache mapCache;
38 SoftCache softCache;
39
40 mapCache = new MapCache(new Hashtable ());
41 softCache = new SoftCache(mapCache);
42
43 softCache.addObject("key", inObject);
44
45 outObject = mapCache.getObject("key");
46
47 assertTrue("outObject instanceof Reference", outObject instanceof Reference );
48 assertTrue("cache2.getObject('key') == inObject", softCache.getObject("key") == inObject);
49
50 outObject = null;
51 inObject = null;
52
53 for (int i = 0; i < 10; i++)
54 {
55 Runtime.getRuntime().gc();
56 Runtime.getRuntime().runFinalization();
57 Runtime.getRuntime().gc();
58 softCache.addObject(new Integer (i), createBigObject());
59
60 Thread.sleep(500);
62 }
63 }
64
65
66 public Object createBigObject()
67 {
68
69 List list = new ArrayList ();
70
71 for (int i = 0; i < 500000; i++)
72 {
73 list.add(Integer.toOctalString(i));
74 }
75
76 return list;
77 }
78 }
79 |
Popular Tags |
Java API By Example, From Geeks To Geeks.