@Test
public void testBasicUsage() throws Exception {
int n = 3;
String mapName = "test";
Config config = new Config();
config
.getMapConfig(mapName)
.setNearCacheConfig(new NearCacheConfig().setInvalidateOnChange(true));
TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory(n);
HazelcastInstance[] instances = factory.newInstances(config);
IMap<Object, Object> map = instances[0].getMap(mapName);
int count = 5000;
for (int i = 0; i < count; i++) {
map.put(i, i);
}
for (HazelcastInstance instance : instances) {
IMap<Object, Object> m = instance.getMap(mapName);
for (int i = 0; i < count; i++) {
Assert.assertNotNull(m.get(i));
}
}
for (int i = 0; i < count; i++) {
map.put(i, i * 2);
}
for (HazelcastInstance instance : instances) {
IMap<Object, Object> m = instance.getMap(mapName);
for (int i = 0; i < count; i++) {
Assert.assertNotNull(m.get(i));
}
}
for (HazelcastInstance instance : instances) {
NearCache nearCache = getNearCache(mapName, instance);
int size = nearCache.size();
assertTrue("NearCache Size: " + size, size > 0);
}
map.clear();
for (HazelcastInstance instance : instances) {
NearCache nearCache = getNearCache(mapName, instance);
int size = nearCache.size();
assertEquals(0, size);
}
}
@Test
public void testCacheLocalEntries() {
int n = 2;
String mapName = "test";
Config config = new Config();
final NearCacheConfig nearCacheConfig = new NearCacheConfig();
nearCacheConfig.setCacheLocalEntries(true);
nearCacheConfig.setInvalidateOnChange(false);
final MapConfig mapConfig = config.getMapConfig(mapName);
mapConfig.setNearCacheConfig(nearCacheConfig);
HazelcastInstance instance = createHazelcastInstanceFactory(n).newInstances(config)[0];
IMap<String, String> map = instance.getMap(mapName);
int noOfEntries = 100;
for (int i = 0; i < noOfEntries; i++) {
map.put("key" + i, "value" + i);
}
// warm-up cache
for (int i = 0; i < noOfEntries; i++) {
map.get("key" + i);
}
NearCache nearCache = getNearCache(mapName, instance);
assertEquals(noOfEntries, nearCache.size());
}
@Test
@Category(ProblematicTest.class)
public void testNearCacheInvalidationByUsingMapPutAll() {
int n = 3;
String mapName = "test";
Config config = new Config();
config
.getMapConfig(mapName)
.setNearCacheConfig(new NearCacheConfig().setInvalidateOnChange(true));
TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory(n);
HazelcastInstance[] instances = factory.newInstances(config);
IMap<Object, Object> map = instances[0].getMap(mapName);
int count = 5000;
for (int i = 0; i < count; i++) {
map.put(i, i);
}
// populate the near cache
for (int i = 0; i < count; i++) {
map.get(i);
}
final NearCache nearCache = getNearCache(mapName, instances[0]);
assertTrue(
nearCache.size()
> (count / n
- count
* 0.1)); // more-or-less (count / no_of_nodes) should be in the near cache now
Map<Object, Object> invalidationMap = new HashMap<Object, Object>(count);
for (int i = 0; i < count; i++) {
invalidationMap.put(i, i);
}
map.putAll(invalidationMap); // this should invalidate the near cache
assertTrueEventually(
new AssertTask() {
@Override
public void run() {
assertEquals("Invalidation is not working on putAll()", 0, nearCache.size());
}
});
}