/*
* JBoss, Home of Professional Open Source
*
* Distributable under LGPL license.
* See terms of license at gnu.org.
*/
package org.jboss.cache.transaction;
import org.jboss.cache.CacheSPI;
import org.jboss.cache.DefaultCacheFactory;
import org.jboss.cache.interceptors.OrderedSynchronizationHandler;
import org.jboss.cache.misc.TestingUtil;
import org.jboss.cache.transaction.NotifyingTransactionManager.Notification;
import org.jgroups.JChannel;
import static org.testng.AssertJUnit.*;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import javax.transaction.RollbackException;
import javax.transaction.Synchronization;
import javax.transaction.SystemException;
import javax.transaction.Transaction;
import javax.transaction.TransactionManager;
/**
* @author <a href="mailto:manik@jboss.org">Manik Surtani (manik@jboss.org)</a>
*/
@Test(groups = {"functional"})
public class AbortionTest
{
private CacheSPI cache1, cache2, cache3;
@BeforeMethod(alwaysRun = true)
public void setUp() throws Exception
{
cache1 = initCache(false);
TestingUtil.sleepThread(1500); // to ensure cache1 is the coordinator
cache2 = initCache(false);
cache3 = initCache(true);
}
@AfterMethod(alwaysRun = true)
public void tearDown() throws Exception
{
TestingUtil.killCaches(cache3, cache2, cache1);
}
private CacheSPI initCache(boolean notifying)
{
CacheSPI c = (CacheSPI) new DefaultCacheFactory().createCache(false);
c.getConfiguration().setCacheMode("REPL_SYNC");
c.getConfiguration().setClusterConfig(getJGroupsStack());
c.getConfiguration().setFetchInMemoryState(false);
if (!notifying)
{
c.getConfiguration().setTransactionManagerLookupClass("org.jboss.cache.transaction.DummyTransactionManagerLookup");
}
else
{
c.getConfiguration().setTransactionManagerLookupClass("org.jboss.cache.transaction.NotifyingTransactionManager");
}
c.start();
return c;
}
// we need a 'special' stack that does not attempt redelivery since we kill a channel midway during a tx in this test.
private String getJGroupsStack()
{
return JChannel.DEFAULT_PROTOCOL_STACK;
}
private void destroyCache(CacheSPI c)
{
if (c != null)
{
c.stop();
c.destroy();
}
}
public void testSyncCaches() throws Exception
{
performTest(false, false);
}
public void testSyncCachesSyncCommitRollback() throws Exception
{
performTest(true, false);
}
/**
* Note that this tests a *remote* beforeCompletion abort - which is a part of the calling instance's afterCompletion.
*
* @throws Exception
*/
public void testAbortBeforeCompletion() throws Exception
{
performTest(true, true);
}
private void performTest(boolean syncCommitRollback, boolean abortBeforeCompletion) throws Exception
{
cache1.getConfiguration().setSyncCommitPhase(syncCommitRollback);
cache1.getConfiguration().setSyncRollbackPhase(syncCommitRollback);
cache2.getConfiguration().setSyncCommitPhase(syncCommitRollback);
cache2.getConfiguration().setSyncRollbackPhase(syncCommitRollback);
cache3.getConfiguration().setSyncCommitPhase(syncCommitRollback);
cache3.getConfiguration().setSyncRollbackPhase(syncCommitRollback);
TransactionManager mgr1 = cache1.getTransactionManager();
TransactionManager mgr2 = cache2.getTransactionManager();
assertTrue(cache3.getTransactionManager() instanceof NotifyingTransactionManager);
NotifyingTransactionManager mgr3 = (NotifyingTransactionManager) cache3.getTransactionManager();
mgr3.setCache(cache3);
assertSame(mgr1, mgr2);
assertNotSame(mgr1, mgr3);
assertNotSame(mgr2, mgr3);
assertTrue(mgr1 instanceof DummyTransactionManager);
assertTrue(mgr2 instanceof DummyTransactionManager);
cache1.put("/test", "key", "value");
assertEquals("value", cache1.get("/test", "key"));
assertEquals("value", cache2.get("/test", "key"));
assertEquals("value", cache3.get("/test", "key"));
mgr3.setNotification(new TestNotification(abortBeforeCompletion));
mgr1.begin();
cache1.put("/test", "key", "value2");
mgr1.commit();
TestingUtil.sleepThread(5000);
// only test cache1 and cache2. Assume cache3 has crashed out.
assertEquals(0, cache1.getNumberOfLocksHeld());
assertEquals(0, cache2.getNumberOfLocksHeld());
assertEquals("put in transaction should NOT have been rolled back", "value2", cache1.get("/test", "key"));
assertEquals("put in transaction should NOT have been rolled back", "value2", cache2.get("/test", "key"));
}
class TestNotification implements Notification
{
boolean abortBeforeCompletion;
public TestNotification(boolean abortBeforeCompletion)
{
this.abortBeforeCompletion = abortBeforeCompletion;
}
public void notify(Transaction tx, TransactionEntry entry) throws SystemException, RollbackException
{
OrderedSynchronizationHandler osh = entry.getOrderedSynchronizationHandler();
final Transaction finalTx = tx;
System.out.println("Notify called.");
// add an aborting sync handler.
Synchronization abort = new Synchronization()
{
public void beforeCompletion()
{
if (abortBeforeCompletion)
{
cache3.getConfiguration().getRuntimeConfig().getChannel().close();
System.out.println("Returning from abort.beforeCompletion");
try
{
finalTx.setRollbackOnly();
}
catch (SystemException e)
{
throw new RuntimeException("Unable to set rollback", e);
}
throw new RuntimeException("Dummy exception");
}
}
public void afterCompletion(int i)
{
if (!abortBeforeCompletion)
{
cache3.getConfiguration().getRuntimeConfig().getChannel().close();
System.out.println("Returning from abort.afterCompletion");
throw new RuntimeException("Dummy exception");
}
}
};
osh.registerAtHead(abort);
System.out.println("Added sync handler.");
}
}
}