package com.hazelcast.map;
import com.hazelcast.core.EntryAdapter;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.IMap;
import com.hazelcast.core.MapEvent;
import com.hazelcast.test.AssertTask;
import com.hazelcast.test.HazelcastParallelClassRunner;
import com.hazelcast.test.HazelcastTestSupport;
import com.hazelcast.test.TestHazelcastInstanceFactory;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import java.util.concurrent.CountDownLatch;
import static org.junit.Assert.assertEquals;
@RunWith(HazelcastParallelClassRunner.class)
@Category(QuickTest.class)
public class MapEvictAllTest extends HazelcastTestSupport {
@Test
public void testEvictAll_firesEvent() throws Exception {
final CountDownLatch countDownLatch = new CountDownLatch(1000);
HazelcastInstance node = createHazelcastInstance();
IMap<Integer, Integer> map = node.getMap(randomMapName());
map.addLocalEntryListener(new EntryAdapter<Integer, Integer>() {
@Override
public void mapEvicted(MapEvent event) {
int numberOfEntries = event.getNumberOfEntriesAffected();
for (int i = 0; i < numberOfEntries; i++) {
countDownLatch.countDown();
}
}
});
for (int i = 0; i < 1000; i++) {
map.put(i, i);
}
map.evictAll();
assertOpenEventually(countDownLatch);
}
@Test
public void testEvictAll_preserveLockedKeys() throws Exception {
int numberOfEntries = 1000;
int numberOfLockedKeys = 123;
int expectedNumberOfEvictedKeys = numberOfEntries - numberOfLockedKeys;
final CountDownLatch countDownLatch = new CountDownLatch(expectedNumberOfEvictedKeys);
HazelcastInstance node = createHazelcastInstance();
IMap<Integer, Integer> map = node.getMap(randomMapName());
map.addLocalEntryListener(new EntryAdapter<Integer, Integer>() {
@Override
public void mapEvicted(MapEvent event) {
int numberOfEntries = event.getNumberOfEntriesAffected();
for (int i = 0; i < numberOfEntries; i++) {
countDownLatch.countDown();
}
}
});
for (int i = 0; i < numberOfEntries; i++) {
map.put(i, i);
}
for (int i = 0; i < numberOfLockedKeys; i++) {
map.lock(i);
}
map.evictAll();
assertOpenEventually(countDownLatch);
assertEquals(0, countDownLatch.getCount());
assertEquals(numberOfLockedKeys, map.size());
}
@Test
public void testEvictAll_onBackup() throws Exception {
int numberOfEntries = 10000;
String mapName = randomMapName();
final CountDownLatch countDownLatch = new CountDownLatch(numberOfEntries);
TestHazelcastInstanceFactory instanceFactory = new TestHazelcastInstanceFactory(5);
HazelcastInstance node1 = instanceFactory.newHazelcastInstance();
HazelcastInstance node2 = instanceFactory.newHazelcastInstance();
final IMap<Integer, Integer> map1 = node1.getMap(mapName);
final IMap<Integer, Integer> map2 = node2.getMap(mapName);
map1.addEntryListener(new EntryAdapter<Integer, Integer>() {
@Override
public void mapEvicted(MapEvent event) {
int numberOfEntries = event.getNumberOfEntriesAffected();
for (int i = 0; i < numberOfEntries; i++) {
countDownLatch.countDown();
}
}
}, false);
for (int i = 0; i < numberOfEntries; i++) {
map1.put(i, i);
}
map1.evictAll();
assertOpenEventually(countDownLatch);
assertEquals(0, countDownLatch.getCount());
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(0, map1.getLocalMapStats().getHeapCost());
}
});
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(0, map2.getLocalMapStats().getHeapCost());
}
});
}
}