1 /***
2 * Copyright 2003-2010 Terracotta, Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package net.sf.ehcache;
18
19 import junit.framework.Assert;
20 import net.sf.ehcache.config.CacheConfiguration;
21 import net.sf.ehcache.config.Configuration;
22 import net.sf.ehcache.config.DiskStoreConfiguration;
23 import net.sf.ehcache.config.PinningConfiguration;
24 import org.junit.After;
25 import org.junit.Before;
26 import org.junit.Test;
27
28 import static org.junit.Assert.assertNotNull;
29
30 /***
31 * Tests for Cache pinning
32 *
33 * @author Ludovic Orban
34 */
35 public class CachePinningTest {
36
37 private static final int ELEMENT_COUNT = 40000;
38
39 private CacheManager cacheManager;
40
41 @Before
42 public void setUp() throws Exception {
43 cacheManager = new CacheManager(
44 new Configuration()
45 .diskStore(new DiskStoreConfiguration().path(System.getProperty("java.io.tmpdir")))
46 );
47 }
48
49 @After
50 public void tearDown() {
51 cacheManager.shutdown();
52 cacheManager = null;
53 }
54
55 @Test
56 public void testClassicLru() throws Exception {
57 System.setProperty(Cache.NET_SF_EHCACHE_USE_CLASSIC_LRU, "true");
58 try {
59 testMemoryOnly();
60 } finally {
61 System.setProperty(Cache.NET_SF_EHCACHE_USE_CLASSIC_LRU, "false");
62 }
63 }
64
65 @Test
66 public void testMemoryOnly() throws Exception {
67 cacheManager.addCache(new Cache(
68 new CacheConfiguration()
69 .maxElementsInMemory(10)
70 .statistics(true)
71 .name("memoryOnlyCache_onHeap")
72 .pinning(new PinningConfiguration().store(PinningConfiguration.Store.LOCALHEAP))
73 ));
74 doAssertions(cacheManager.getCache("memoryOnlyCache_onHeap"), ELEMENT_COUNT, 0);
75
76 cacheManager.addCache(new Cache(
77 new CacheConfiguration()
78 .maxElementsInMemory(10)
79 .statistics(true)
80 .name("memoryOnlyCache_inMemory")
81 .pinning(new PinningConfiguration().store(PinningConfiguration.Store.LOCALMEMORY))
82 ));
83 doAssertions(cacheManager.getCache("memoryOnlyCache_inMemory"), ELEMENT_COUNT, 0);
84
85 cacheManager.addCache(new Cache(
86 new CacheConfiguration()
87 .maxElementsInMemory(10)
88 .statistics(true)
89 .name("memoryOnlyCache_inCache")
90 .pinning(new PinningConfiguration().store(PinningConfiguration.Store.INCACHE))
91 ));
92 doAssertions(cacheManager.getCache("memoryOnlyCache_inCache"), ELEMENT_COUNT, 0);
93 }
94
95 @Test
96 public void testOverflowToDisk() throws Exception {
97 cacheManager.addCache(new Cache(
98 new CacheConfiguration()
99 .maxElementsInMemory(10)
100 .maxElementsOnDisk(20)
101 .overflowToDisk(true)
102 .statistics(true)
103 .name("overflowToDiskCache_onHeap")
104 .pinning(new PinningConfiguration().store(PinningConfiguration.Store.LOCALHEAP))
105 ));
106 doAssertions(cacheManager.getCache("overflowToDiskCache_onHeap"), ELEMENT_COUNT, 0);
107
108 cacheManager.addCache(new Cache(
109 new CacheConfiguration()
110 .maxElementsInMemory(10)
111 .maxElementsOnDisk(20)
112 .overflowToDisk(true)
113 .statistics(true)
114 .name("overflowToDiskCache_inMemory")
115 .pinning(new PinningConfiguration().store(PinningConfiguration.Store.LOCALMEMORY))
116 ));
117 doAssertions(cacheManager.getCache("overflowToDiskCache_inMemory"), ELEMENT_COUNT, 0);
118
119 cacheManager.addCache(new Cache(
120 new CacheConfiguration()
121 .maxElementsInMemory(10)
122 .maxElementsOnDisk(20)
123 .overflowToDisk(true)
124 .statistics(true)
125 .name("overflowToDiskCache_inCache")
126 .pinning(new PinningConfiguration().store(PinningConfiguration.Store.INCACHE))
127 ));
128 doAssertions(cacheManager.getCache("overflowToDiskCache_inCache"), 10, ELEMENT_COUNT - 10);
129 }
130
131 @Test
132 public void testDiskPersistent() throws Exception {
133 cacheManager.addCache(new Cache(
134 new CacheConfiguration()
135 .maxElementsInMemory(10)
136 .maxElementsOnDisk(20)
137 .overflowToDisk(true)
138 .diskPersistent(true)
139 .statistics(true)
140 .name("diskPersistentCache_onHeap")
141 .pinning(new PinningConfiguration().store(PinningConfiguration.Store.LOCALHEAP))
142 ));
143 doAssertions(cacheManager.getCache("diskPersistentCache_onHeap"), ELEMENT_COUNT, 0);
144
145 cacheManager.addCache(new Cache(
146 new CacheConfiguration()
147 .maxElementsInMemory(10)
148 .maxElementsOnDisk(20)
149 .overflowToDisk(true)
150 .diskPersistent(true)
151 .statistics(true)
152 .name("diskPersistentCache_inMemory")
153 .pinning(new PinningConfiguration().store(PinningConfiguration.Store.LOCALMEMORY))
154 ));
155 doAssertions(cacheManager.getCache("diskPersistentCache_inMemory"), ELEMENT_COUNT, 0);
156
157 cacheManager.addCache(new Cache(
158 new CacheConfiguration()
159 .maxElementsInMemory(10)
160 .maxElementsOnDisk(20)
161 .overflowToDisk(true)
162 .diskPersistent(true)
163 .statistics(true)
164 .name("diskPersistentCache_inCache")
165 .pinning(new PinningConfiguration().store(PinningConfiguration.Store.INCACHE))
166 ));
167 doAssertions(cacheManager.getCache("diskPersistentCache_inCache"), 10, ELEMENT_COUNT - 10);
168 }
169
170 private void doAssertions(Cache cache, long expectedMemoryHits, long expectedDiskHits) {
171 for (int i = 0; i < ELEMENT_COUNT; i++) {
172 cache.put(new Element(i, i));
173 }
174
175 Assert.assertEquals(ELEMENT_COUNT, cache.getSize());
176
177 for (int i = 0; i < ELEMENT_COUNT; i++) {
178 assertNotNull(cache.get(i));
179 }
180
181 Assert.assertEquals(expectedMemoryHits, cache.getStatistics().getInMemoryHits());
182 Assert.assertEquals(ELEMENT_COUNT - expectedMemoryHits, cache.getStatistics().getInMemoryMisses());
183 Assert.assertEquals(expectedDiskHits, cache.getStatistics().getOnDiskHits());
184 Assert.assertEquals(0, cache.getStatistics().getOnDiskMisses());
185 Assert.assertEquals(ELEMENT_COUNT - expectedMemoryHits, cache.getStatistics().getEvictionCount());
186 }
187
188 }
189