package org.infinispan.replication;
import static org.testng.AssertJUnit.assertEquals;
import static org.testng.AssertJUnit.assertNull;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import javax.transaction.TransactionManager;
import org.infinispan.Cache;
import org.infinispan.configuration.cache.CacheMode;
import org.infinispan.configuration.cache.ConfigurationBuilder;
import org.infinispan.test.MultipleCacheManagersTest;
import org.infinispan.test.TestingUtil;
import org.infinispan.test.fwk.InCacheMode;
import org.infinispan.transaction.LockingMode;
import org.infinispan.transaction.lookup.EmbeddedTransactionManagerLookup;
import org.infinispan.transaction.tm.EmbeddedTransactionManager;
import org.testng.annotations.Test;
/**
* Tests for lock API
* <p/>
* Introduce lock() API methods https://jira.jboss.org/jira/browse/ISPN-48
*
* @author Manik Surtani
* @author Vladimir Blagojevic
*/
@Test(groups = "functional", testName = "replication.SyncLockingTest")
@InCacheMode({ CacheMode.DIST_SYNC, CacheMode.REPL_SYNC })
public class SyncLockingTest extends MultipleCacheManagersTest {
private String k = "key", v = "value";
public SyncLockingTest() {
cleanup = CleanupPhase.AFTER_METHOD;
}
@Override
protected void createCacheManagers() throws Throwable {
ConfigurationBuilder cfg = getDefaultClusteredCacheConfig(cacheMode, true);
cfg.transaction().transactionManagerLookup(new EmbeddedTransactionManagerLookup())
.lockingMode(LockingMode.PESSIMISTIC)
.locking().lockAcquisitionTimeout(TestingUtil.shortTimeoutMillis());
createClusteredCaches(2, "testcache", cfg);
waitForClusterToForm("testcache");
}
public void testLocksReleasedWithoutExplicitUnlock() throws Exception {
locksReleasedWithoutExplicitUnlockHelper(false, false);
locksReleasedWithoutExplicitUnlockHelper(true, false);
locksReleasedWithoutExplicitUnlockHelper(false, true);
locksReleasedWithoutExplicitUnlockHelper(true, true);
}
public void testConcurrentNonTxLocking() throws Exception {
concurrentLockingHelper(false, false);
concurrentLockingHelper(true, false);
}
public void testConcurrentTxLocking() throws Exception {
concurrentLockingHelper(false, true);
concurrentLockingHelper(true, true);
}
public void testLocksReleasedWithNoMods() throws Exception {
Cache cache1 = cache(0, "testcache");
Cache cache2 = cache(1, "testcache");
assertClusterSize("Should only be 2 caches in the cluster!!!", 2);
assertNull("Should be null", cache1.get(k));
assertNull("Should be null", cache2.get(k));
TransactionManager mgr = TestingUtil.getTransactionManager(cache1);
mgr.begin();
cache1.getAdvancedCache().lock(k);
//do a dummy read
cache1.get(k);
mgr.commit();
assertEventuallyNotLocked(cache1, "testcache");
assertEventuallyNotLocked(cache2, "testcache");
assert cache1.isEmpty();
assert cache2.isEmpty();
cache1.clear();
cache2.clear();
}
public void testReplaceNonExistentKey() throws Exception {
Cache cache1 = cache(0, "testcache");
Cache cache2 = cache(1, "testcache");
assertClusterSize("Should only be 2 caches in the cluster!!!", 2);
TransactionManager mgr = TestingUtil.getTransactionManager(cache1);
mgr.begin();
cache1.getAdvancedCache().lock(k);
// do a replace on empty key
// https://jira.jboss.org/browse/ISPN-514
Object old = cache1.replace(k, "blah");
assertNull("Should be null", cache1.get(k));
boolean replaced = cache1.replace(k, "Vladimir", "Blagojevic");
assert !replaced;
assertNull("Should be null", cache1.get(k));
mgr.commit();
assertEventuallyNotLocked(cache1, "testcache");
assertEventuallyNotLocked(cache2, "testcache");
assert cache1.isEmpty();
assert cache2.isEmpty();
cache1.clear();
cache2.clear();
}
private void concurrentLockingHelper(final boolean sameNode, final boolean useTx) throws Exception {
log.debugf("sameNode=%s, useTx=%s", sameNode, useTx);
final Cache cache1 = cache(0, "testcache");
final Cache cache2 = cache(1, "testcache");
assertClusterSize("Should only be 2 caches in the cluster!!!", 2);
assertNull("Should be null", cache1.get(k));
assertNull("Should be null", cache2.get(k));
final CountDownLatch latch = new CountDownLatch(1);
Thread t = getTestThreadFactory("Worker").newThread(new Runnable() {
@Override
public void run() {
log.info("Concurrent " + (useTx ? "tx" : "non-tx") + " write started "
+ (sameNode ? "on same node..." : "on a different node..."));
EmbeddedTransactionManager mgr = null;
try {
if (useTx) {
mgr = (EmbeddedTransactionManager) TestingUtil.getTransactionManager(sameNode ? cache1 : cache2);
mgr.begin();
}
if (sameNode) {
cache1.put(k, "JBC");
} else {
cache2.put(k, "JBC");
}
if (useTx) {
if (!mgr.getTransaction().runPrepare()) { //couldn't prepare
latch.countDown();
mgr.rollback();
}
}
} catch (Exception e) {
if (useTx) {
try {
mgr.commit();
} catch (Exception e1) {
}
}
latch.countDown();
}
}
});
String name = "Infinispan";
TransactionManager mgr = TestingUtil.getTransactionManager(cache1);
mgr.begin();
log.trace("Here is where the fun starts...Here is where the fun starts...");
// lock node and start other thread whose write should now block
cache1.getAdvancedCache().lock(k);
t.start();
// wait till the put in thread t times out
assert latch.await(10, TimeUnit.SECONDS) : "Concurrent put didn't time out!";
cache1.put(k, name);
mgr.commit();
assertNotLocked("testcache", k);
t.join();
cache2.remove(k);
assert cache1.isEmpty();
assert cache2.isEmpty();
cache1.clear();
cache2.clear();
}
private void locksReleasedWithoutExplicitUnlockHelper(boolean lockPriorToPut, boolean useCommit)
throws Exception {
log.debugf("lockPriorToPut=%s, useCommit=%s", lockPriorToPut, useCommit);
Cache cache1 = cache(0, "testcache");
Cache cache2 = cache(1, "testcache");
assertClusterSize("Should only be 2 caches in the cluster!!!", 2);
assertNull("Should be null", cache1.get(k));
assertNull("Should be null", cache2.get(k));
String name = "Infinispan";
TransactionManager mgr = TestingUtil.getTransactionManager(cache1);
mgr.begin();
if (lockPriorToPut)
cache1.getAdvancedCache().lock(k);
cache1.put(k, name);
if (!lockPriorToPut)
cache1.getAdvancedCache().lock(k);
if (useCommit)
mgr.commit();
else
mgr.rollback();
if (useCommit) {
assertEquals(name, cache1.get(k));
assertEquals("Should have replicated", name, cache2.get(k));
} else {
assertEquals(null, cache1.get(k));
assertEquals("Should not have replicated", null, cache2.get(k));
}
cache2.remove(k);
assert cache1.isEmpty();
assert cache2.isEmpty();
cache1.clear();
cache2.clear();
}
}