/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.test.clustering.cluster.ejb3.stateful.remote.failover.dd;
import static org.jboss.as.test.clustering.ClusteringTestConstants.CONTAINER_1;
import static org.jboss.as.test.clustering.ClusteringTestConstants.CONTAINER_2;
import static org.jboss.as.test.clustering.ClusteringTestConstants.DEPLOYMENT_1;
import static org.jboss.as.test.clustering.ClusteringTestConstants.DEPLOYMENT_2;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import org.jboss.arquillian.container.test.api.ContainerController;
import org.jboss.arquillian.container.test.api.Deployer;
import org.jboss.arquillian.container.test.api.Deployment;
import org.jboss.arquillian.container.test.api.RunAsClient;
import org.jboss.arquillian.container.test.api.TargetsContainer;
import org.jboss.arquillian.junit.Arquillian;
import org.jboss.arquillian.test.api.ArquillianResource;
import org.jboss.as.test.clustering.EJBClientContextSelector;
import org.jboss.as.test.clustering.EJBDirectory;
import org.jboss.as.test.clustering.RemoteEJBDirectory;
import org.jboss.as.test.clustering.cluster.ejb3.stateful.remote.failover.CounterResult;
import org.jboss.as.test.clustering.cluster.ejb3.stateful.remote.failover.RemoteCounter;
import org.jboss.ejb.client.ContextSelector;
import org.jboss.ejb.client.EJBClientConfiguration;
import org.jboss.ejb.client.EJBClientContext;
import org.jboss.ejb.client.PropertiesBasedEJBClientConfiguration;
import org.jboss.ejb.client.remoting.ConfigBasedEJBClientContextSelector;
import org.jboss.logging.Logger;
import org.jboss.shrinkwrap.api.Archive;
import org.jboss.shrinkwrap.api.ShrinkWrap;
import org.jboss.shrinkwrap.api.spec.JavaArchive;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
/**
* Tests that invocations, from a remote EJB client, on a stateful session bean marked as clustered via jboss-ejb3.xml,
* failover to other node(s) in cases like a node going down
*
* @author Jaikiran Pai
*/
@RunWith(Arquillian.class)
@RunAsClient
public class RemoteEJBClientDDBasedSFSBFailoverTestCase {
private static final Logger logger = Logger.getLogger(RemoteEJBClientDDBasedSFSBFailoverTestCase.class);
private static final String MODULE_NAME = "remote-ejb-client-dd-based-stateful-bean-failover-test";
private static EJBDirectory context;
@ArquillianResource
private ContainerController container;
@ArquillianResource
private Deployer deployer;
@Deployment(name = DEPLOYMENT_1, managed = false, testable = false)
@TargetsContainer(CONTAINER_1)
public static Archive<?> createDeploymentForContainer1() {
return createDeployment();
}
@Deployment(name = DEPLOYMENT_2, managed = false, testable = false)
@TargetsContainer(CONTAINER_2)
public static Archive<?> createDeploymentForContainer2() {
return createDeployment();
}
private static Archive<?> createDeployment() {
final JavaArchive ejbJar = ShrinkWrap.create(JavaArchive.class, MODULE_NAME + ".jar");
ejbJar.addPackage(DDBasedClusteredSFSB.class.getPackage());
ejbJar.addClasses(RemoteCounter.class, CounterResult.class);
ejbJar.addAsManifestResource("cluster/ejb3/stateful/failover/dd/jboss-ejb3.xml", "jboss-ejb3.xml");
logger.info(ejbJar.toString(true));
return ejbJar;
}
@BeforeClass
public static void beforeClass() throws Exception {
context = new RemoteEJBDirectory(MODULE_NAME);
}
/**
* Starts 2 nodes with the clustered beans deployed on each node. Invokes a (deployment descriptor based) clustered SFSB a few times.
* Then stops a node from among the cluster (the one which received the last invocation) and continues invoking
* on the same SFSB. These subsequent invocations are expected to failover to the other node and also have the
* correct state of the SFSB.
*
* @throws Exception
*/
@Test
public void testFailoverFromRemoteClientWhenOneNodeGoesDown() throws Exception {
// Container is unmanaged, so start it ourselves
this.container.start(CONTAINER_1);
// deploy to container1
this.deployer.deploy(DEPLOYMENT_1);
// start the other container too
this.container.start(CONTAINER_2);
this.deployer.deploy(DEPLOYMENT_2);
final ContextSelector<EJBClientContext> previousSelector = EJBClientContextSelector.setup("cluster/ejb3/stateful/failover/sfsb-failover-jboss-ejb-client.properties");
boolean container1Stopped = false;
boolean container2Stopped = false;
try {
final RemoteCounter remoteCounter = context.lookupStateful(DDBasedClusteredSFSB.class, RemoteCounter.class);
// invoke on the bean a few times
final int NUM_TIMES = 25;
for (int i = 0; i < NUM_TIMES; i++) {
final CounterResult result = remoteCounter.increment();
logger.info("Counter incremented to " + result.getCount() + " on node " + result.getNodeName());
}
final CounterResult result = remoteCounter.getCount();
Assert.assertNotNull("Result from remote stateful counter was null", result);
Assert.assertEquals("Unexpected count from remote counter", NUM_TIMES, result.getCount());
// shutdown the node on which the previous invocation happened
final int totalCountBeforeShuttingDownANode = result.getCount();
final String previousInvocationNodeName = result.getNodeName();
// the value is configured in arquillian.xml of the project
if (previousInvocationNodeName.equals("node-udp-0")) {
this.deployer.undeploy(DEPLOYMENT_1);
this.container.stop(CONTAINER_1);
container1Stopped = true;
} else {
this.deployer.undeploy(DEPLOYMENT_2);
this.container.stop(CONTAINER_2);
container2Stopped = true;
}
// invoke again
CounterResult resultAfterShuttingDownANode = remoteCounter.increment();
Assert.assertNotNull("Result from remote stateful counter, after shutting down a node was null", resultAfterShuttingDownANode);
Assert.assertEquals("Unexpected count from remote counter, after shutting down a node", totalCountBeforeShuttingDownANode + 1, resultAfterShuttingDownANode.getCount());
Assert.assertFalse("Result was received from an unexpected node, after shutting down a node", previousInvocationNodeName.equals(resultAfterShuttingDownANode.getNodeName()));
// repeat invocations
final int countBeforeDecrementing = resultAfterShuttingDownANode.getCount();
final String aliveNode = resultAfterShuttingDownANode.getNodeName();
for (int i = NUM_TIMES; i > 0; i--) {
resultAfterShuttingDownANode = remoteCounter.decrement();
Assert.assertNotNull("Result from remote stateful counter, after shutting down a node was null", resultAfterShuttingDownANode);
Assert.assertEquals("Result was received from an unexpected node, after shutting down a node", aliveNode, resultAfterShuttingDownANode.getNodeName());
logger.info("Counter decremented to " + resultAfterShuttingDownANode.getCount() + " on node " + resultAfterShuttingDownANode.getNodeName());
}
final CounterResult finalResult = remoteCounter.getCount();
Assert.assertNotNull("Result from remote stateful counter, after shutting down a node was null", finalResult);
final int finalCount = finalResult.getCount();
final String finalNodeName = finalResult.getNodeName();
Assert.assertEquals("Result was received from an unexpected node, after shutting down a node", aliveNode, finalNodeName);
Assert.assertEquals("Unexpected count from remote counter, after shutting down a node", countBeforeDecrementing - NUM_TIMES, finalCount);
} finally {
// reset the selector
if (previousSelector != null) {
EJBClientContext.setSelector(previousSelector);
}
// shutdown the containers
if (!container1Stopped) {
this.deployer.undeploy(DEPLOYMENT_1);
this.container.stop(CONTAINER_1);
}
if (!container2Stopped) {
this.deployer.undeploy(DEPLOYMENT_2);
this.container.stop(CONTAINER_2);
}
}
}
}