/*
* ModeShape (http://www.modeshape.org)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.modeshape.jcr.journal;
import java.util.ArrayList;
import java.util.List;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.modeshape.common.util.FileUtil;
import org.modeshape.jcr.ClusteringHelper;
import org.modeshape.jcr.clustering.ClusteringService;
/**
* Unit test for {@link ClusteredJournal}
*
* @author Horia Chiorean (hchiorea@redhat.com)
*/
public class ClusteredJournalTest extends LocalJournalTest {
private ClusteredJournal defaultJournal;
private List<ClusteringService> clusteringServices = new ArrayList<ClusteringService>();
@BeforeClass
public static void beforeClass() throws Exception {
ClusteringHelper.bindJGroupsToLocalAddress();
}
@AfterClass
public static void afterClass() throws Exception {
ClusteringHelper.removeJGroupsBindings();
}
@Override
public void before() throws Exception {
this.defaultJournal = startNewJournal(
"target/default_clustered_journal",
"default-journal-cluster");
insertTestRecords();
}
@Override
protected ChangeJournal journal() {
return defaultJournal;
}
@Override
protected LocalJournal localJournal() {
return defaultJournal.localJournal();
}
@Override
public void after() {
super.after();
for (ClusteringService clusteringService : clusteringServices) {
clusteringService.shutdown();
}
}
@Test
public void shouldReconcileDeltaInCluster() throws Exception {
// shut down the default journal
after();
// start a journal
ClusteredJournal journal1 = startNewJournal("target/clustered_journal_1", "journal-cluster-1");
// add 2 record to the 1st journal
journal1.addRecords(new JournalRecord(TestChangeSet.create(journal1.journalId(), 1)));
journal1.addRecords(new JournalRecord(TestChangeSet.create(journal1.journalId(), 1)));
// start another journal
ClusteredJournal journal2 = startNewJournal("target/clustered_journal_2", "journal-cluster-1");
// check that the 2nd journal has received all the changes from the 1st (they haven't seen each other yet)
Assert.assertEquals(2, journal2.allRecords(false).size());
// add 1 record to the 2nd journal and also the 1st, to simulate a new distributed changeset
JournalRecord recordJ2 = new JournalRecord(TestChangeSet.create(journal2.journalId(), 1));
journal2.addRecords(recordJ2);
Assert.assertEquals(3, journal2.allRecords(false).size());
journal1.addRecords(recordJ2);
Assert.assertEquals(3, journal1.allRecords(false).size());
// shutdown the second journal
journal2.clusteringService().shutdown();
journal2.shutdown();
// while the 2nd process is down, add a new record
journal1.addRecords(new JournalRecord(TestChangeSet.create(journal1.journalId(), 1)));
// start the 2nd journal back and verify it received a 1 delta from the 1st journal
journal2.clusteringService().restart();
journal2.start();
Assert.assertEquals(4, journal2.allRecords(false).size());
journal2.shutdown();
journal1.shutdown();
}
private ClusteredJournal startNewJournal( String fileLocation,
String clusterName ) throws Exception {
ClusteringService clusteringService = ClusteringService.startStandalone(clusterName, "config/jgroups-test-config.xml");
clusteringServices.add(clusteringService);
FileUtil.delete(fileLocation);
LocalJournal localJournal = new LocalJournal(fileLocation);
ClusteredJournal clusteredJournal = new ClusteredJournal(localJournal, clusteringService);
clusteredJournal.start();
return clusteredJournal;
}
}