Java tutorial
/* * JBoss, Home of Professional Open Source. * Copyright 2013, 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.ejb.xpc; import static org.junit.Assert.assertEquals; import java.io.IOException; import java.net.URI; import java.net.URISyntaxException; import java.net.URL; import java.util.Date; import javax.servlet.http.HttpServletResponse; import org.apache.http.Header; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.DefaultHttpClient; import org.jboss.arquillian.container.test.api.Deployment; import org.jboss.arquillian.container.test.api.OperateOnDeployment; 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.cluster.ClusterAbstractTestCase; import org.jboss.as.test.clustering.cluster.ejb.xpc.bean.StatefulBean; import org.jboss.as.test.clustering.cluster.ejb.xpc.servlet.StatefulServlet; import org.jboss.as.test.clustering.ejb.EJBDirectory; import org.jboss.as.test.http.util.HttpClientUtils; import org.jboss.shrinkwrap.api.Archive; import org.jboss.shrinkwrap.api.ShrinkWrap; import org.jboss.shrinkwrap.api.asset.StringAsset; import org.jboss.shrinkwrap.api.spec.WebArchive; import org.junit.Assert; import org.junit.Test; import org.junit.runner.RunWith; /** * @author Paul Ferraro * @author Scott Marlow * @version Oct 2012 */ @RunWith(Arquillian.class) @RunAsClient public class StatefulWithXPCFailoverTestCase extends ClusterAbstractTestCase { private static final String persistence_xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?> " + "<persistence xmlns=\"http://java.sun.com/xml/ns/persistence\" version=\"1.0\">" + " <persistence-unit name=\"mypc\">" + " <description>Persistence Unit." + " </description>" + " <jta-data-source>java:jboss/datasources/ExampleDS</jta-data-source>" + "<shared-cache-mode>ENABLE_SELECTIVE</shared-cache-mode>" + "<properties> <property name=\"hibernate.hbm2ddl.auto\" value=\"create-drop\"/>" + "<property name=\"hibernate.cache.use_second_level_cache\" value=\"true\" />" + "<property name=\"hibernate.generate_statistics\" value=\"true\" />" + "<property name=\"hibernate.show_sql\" value=\"true\"/>" + "</properties>" + " </persistence-unit>" + "</persistence>"; @Deployment(name = DEPLOYMENT_1, managed = false, testable = false) @TargetsContainer(CONTAINER_1) public static Archive<?> deployment0() { return createDeployment(); } @Deployment(name = DEPLOYMENT_2, managed = false, testable = false) @TargetsContainer(CONTAINER_2) public static Archive<?> deployment1() { return createDeployment(); } private static Archive<?> createDeployment() { WebArchive war = ShrinkWrap.create(WebArchive.class, StatefulBean.MODULE + ".war"); war.addPackage(StatefulBean.class.getPackage()); war.addPackage(StatefulServlet.class.getPackage()); war.addPackage(EJBDirectory.class.getPackage()); war.setWebXML(StatefulServlet.class.getPackage(), "web.xml"); war.addAsResource(new StringAsset(persistence_xml), "META-INF/persistence.xml"); log.info(war.toString(true)); return war; } /** * Use the second level cache statistics to ensure that deleting an entity on a cluster node, will * remove the entity from the second level cache on other nodes. * <p/> * Note that this test writes to the separate databases on both cluster nodes (so that both nodes can * read the entity from the database). The important thing is that the second level cache entries are * invalidated when the entity is deleted from either database. * * @param baseURL1 * @param baseURL2 * @throws IOException * @throws InterruptedException * @throws URISyntaxException */ @Test public void testSecondLevelCache(@ArquillianResource() @OperateOnDeployment(DEPLOYMENT_1) URL baseURL1, @ArquillianResource() @OperateOnDeployment(DEPLOYMENT_2) URL baseURL2) throws IOException, InterruptedException, URISyntaxException { DefaultHttpClient client = new DefaultHttpClient(); URI xpc1_create_url = StatefulServlet.createEmployeeURI(baseURL1); URI xpc2_create_url = StatefulServlet.createEmployeeURI(baseURL2); URI xpc1_flush_url = StatefulServlet.flushURI(baseURL1); URI xpc2_flush_url = StatefulServlet.flushURI(baseURL2); URI xpc1_clear_url = StatefulServlet.clearURI(baseURL1); URI xpc2_clear_url = StatefulServlet.clearURI(baseURL2); URI xpc1_get_url = StatefulServlet.getEmployeeURI(baseURL1); URI xpc2_get_url = StatefulServlet.getEmployeeURI(baseURL2); URI xpc1_getdestroy_url = StatefulServlet.destroyURI(baseURL2); URI xpc1_delete_url = StatefulServlet.deleteEmployeeURI(baseURL1); URI xpc2_delete_url = StatefulServlet.deleteEmployeeURI(baseURL2); URI xpc1_secondLevelCacheEntries_url = StatefulServlet.getEmployeesIn2LCURI(baseURL1); URI xpc2_secondLevelCacheEntries_url = StatefulServlet.getEmployeesIn2LCURI(baseURL2); try { assertExecuteUrl(client, StatefulServlet.echoURI(baseURL1, "StartingTestSecondLevelCache")); // echo message to server.log assertExecuteUrl(client, StatefulServlet.echoURI(baseURL2, "StartingTestSecondLevelCache")); // echo message to server.log String employeeName = executeUrlWithAnswer(client, xpc1_create_url, "create entity in node1 in memory db"); assertEquals(employeeName, "Tom Brady"); log.info(new Date() + "about to read entity on node1 (from xpc queue)"); employeeName = executeUrlWithAnswer(client, xpc1_get_url, "on node1, node1 should be able to read entity on node1"); assertEquals(employeeName, "Tom Brady"); String employeesInCache = executeUrlWithAnswer(client, xpc1_secondLevelCacheEntries_url, "get number of elements in node1 second level cache (should be zero)"); assertEquals(employeesInCache, "0"); // we read the entity from the extended persistence context (hasn't been flushed yet) assertExecuteUrl(client, xpc1_flush_url); // flush changes to db assertExecuteUrl(client, xpc1_clear_url); // clear xpc state so we have to reload employeeName = executeUrlWithAnswer(client, xpc2_create_url, "create entity in node2 in memory db (each node has its own database)"); assertEquals(employeeName, "Tom Brady"); assertExecuteUrl(client, xpc2_flush_url); // flush changes to db on second node assertExecuteUrl(client, xpc2_clear_url); // clear xpc state so we have to reload employeeName = executeUrlWithAnswer(client, xpc2_get_url, "node2 should be able to read entity from 2lc"); assertEquals(employeeName, "Tom Brady"); // we should of read one Employee entity on node2, ensure the second level cache contains one entry employeesInCache = executeUrlWithAnswer(client, xpc2_secondLevelCacheEntries_url, "get number of elements in node2 second level cache (should be zero)"); assertEquals(employeesInCache, "1"); assertExecuteUrl(client, StatefulServlet.echoURI(baseURL1, "testSecondLevelCacheclearedXPC")); assertExecuteUrl(client, StatefulServlet.echoURI(baseURL2, "testSecondLevelCacheclearedXPC")); assertExecuteUrl(client, xpc2_delete_url); // deleting the entity on one node should remove it from both nodes second level cache assertExecuteUrl(client, StatefulServlet.echoURI(baseURL1, "testSecondLevelCachedeletedEnityOnNode2")); assertExecuteUrl(client, StatefulServlet.echoURI(baseURL1, "2lcOnNode1ShouldHaveZeroElemementsLoaded")); employeesInCache = executeUrlWithAnswer(client, xpc1_secondLevelCacheEntries_url, "get number of elements in node1 second level cache (should be zero)"); assertEquals(employeesInCache, "0"); employeesInCache = executeUrlWithAnswer(client, xpc2_secondLevelCacheEntries_url, "get number of elements in node2 second level cache (should be zero)"); assertEquals(employeesInCache, "0"); assertExecuteUrl(client, xpc1_delete_url); String destroyed = executeUrlWithAnswer(client, xpc1_getdestroy_url, "destroy the bean on node1"); assertEquals(destroyed, "DESTROY"); } finally { org.apache.http.client.utils.HttpClientUtils.closeQuietly(client); } } @Test public void testBasicXPC(@ArquillianResource() @OperateOnDeployment(DEPLOYMENT_1) URL baseURL1, @ArquillianResource() @OperateOnDeployment(DEPLOYMENT_2) URL baseURL2) throws IOException, URISyntaxException { DefaultHttpClient client = HttpClientUtils.relaxedCookieHttpClient(); URI xpc1_create_url = StatefulServlet.createEmployeeURI(baseURL1); URI xpc1_get_url = StatefulServlet.getEmployeeURI(baseURL1); URI xpc2_get_url = StatefulServlet.getEmployeeURI(baseURL2); URI xpc1_getempsecond_url = StatefulServlet.get2ndBeanEmployeeURI(baseURL1); URI xpc2_getempsecond_url = StatefulServlet.get2ndBeanEmployeeURI(baseURL2); URI xpc2_getdestroy_url = StatefulServlet.destroyURI(baseURL2); try { stop(CONTAINER_2); // extended persistence context is available on node1 log.info(new Date() + "create employee entity "); String employeeName = executeUrlWithAnswer(client, xpc1_create_url, "create entity that lives in the extended persistence context that this test will verify is always available"); assertEquals(employeeName, "Tom Brady"); log.info(new Date() + "1. about to read entity on node1"); // ensure that we can get it from node 1 employeeName = executeUrlWithAnswer(client, xpc1_get_url, "1. xpc on node1, node1 should be able to read entity on node1"); assertEquals(employeeName, "Tom Brady"); employeeName = executeUrlWithAnswer(client, xpc1_getempsecond_url, "1. xpc on node1, node1 should be able to read entity from second bean on node1"); assertEquals(employeeName, "Tom Brady"); start(CONTAINER_2); log.info(new Date() + "2. started node2 + deployed, about to read entity on node1"); employeeName = executeUrlWithAnswer(client, xpc2_get_url, "2. started node2, xpc on node1, node1 should be able to read entity on node1"); assertEquals(employeeName, "Tom Brady"); employeeName = executeUrlWithAnswer(client, xpc2_getempsecond_url, "2. started node2, xpc on node1, node1 should be able to read entity from second bean on node1"); assertEquals(employeeName, "Tom Brady"); // failover to deployment2 stop(CONTAINER_1); // failover #1 to node 2 log.info(new Date() + "3. stopped node1 to force failover, about to read entity on node2"); employeeName = executeUrlWithAnswer(client, xpc2_get_url, "3. stopped deployment on node1, xpc should failover to node2, node2 should be able to read entity from xpc"); assertEquals(employeeName, "Tom Brady"); employeeName = executeUrlWithAnswer(client, xpc2_getempsecond_url, "3. stopped deployment on node1, xpc should failover to node2, node2 should be able to read entity from xpc that is on node2 (second bean)"); assertEquals(employeeName, "Tom Brady"); String destroyed = executeUrlWithAnswer(client, xpc2_getdestroy_url, "4. destroy the bean on node2"); assertEquals(destroyed, "DESTROY"); log.info(new Date() + "4. test is done"); } finally { org.apache.http.client.utils.HttpClientUtils.closeQuietly(client); } } private static String executeUrlWithAnswer(HttpClient client, URI url, String message) throws IOException { HttpResponse response = client.execute(new HttpGet(url)); try { assertEquals(200, response.getStatusLine().getStatusCode()); Header header = response.getFirstHeader("answer"); Assert.assertNotNull(message, header); return header.getValue(); } finally { org.apache.http.client.utils.HttpClientUtils.closeQuietly(response); } } private static void assertExecuteUrl(HttpClient client, URI url) throws IOException { HttpResponse response = client.execute(new HttpGet(url)); try { assertEquals(HttpServletResponse.SC_OK, response.getStatusLine().getStatusCode()); } finally { org.apache.http.client.utils.HttpClientUtils.closeQuietly(response); } } }