Java tutorial
/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.apache.whirr.service.voldemort.integration; import org.apache.commons.configuration.CompositeConfiguration; import org.apache.commons.configuration.PropertiesConfiguration; import org.apache.whirr.Cluster; import org.apache.whirr.Cluster.Instance; import org.apache.whirr.ClusterController; import org.apache.whirr.ClusterSpec; import org.apache.whirr.TestConstants; import org.junit.After; import org.junit.Assert; import org.junit.Before; import org.junit.Test; import voldemort.client.protocol.admin.AdminClient; import voldemort.client.protocol.admin.AdminClientConfig; import voldemort.cluster.Node; import java.io.IOException; import java.util.ArrayList; import java.util.Collections; import java.util.List; import java.util.Set; import static org.apache.whirr.service.voldemort.VoldemortConstants.ADMIN_PORT; public class VoldemortServiceTest { private ClusterSpec clusterSpec; private ClusterController controller; private Cluster cluster; @Before public void setUp() throws Exception { CompositeConfiguration config = new CompositeConfiguration(); if (System.getProperty("config") != null) { config.addConfiguration(new PropertiesConfiguration(System.getProperty("config"))); } config.addConfiguration(new PropertiesConfiguration("whirr-voldemort-test.properties")); clusterSpec = ClusterSpec.withTemporaryKeys(config); controller = new ClusterController(); cluster = controller.launchCluster(clusterSpec); waitForBootstrap(); } private void waitForBootstrap() { for (Instance instance : cluster.getInstances()) { while (true) { try { String url = "tcp://" + instance.getPublicAddress().getHostAddress() + ":" + ADMIN_PORT; AdminClient client = new AdminClient(url, new AdminClientConfig()); client.getAdminClientCluster(); break; } catch (Exception e) { System.out.print("."); try { Thread.sleep(1000); } catch (InterruptedException e1) { break; } } } } } @Test(timeout = TestConstants.ITEST_TIMEOUT) public void testInstances() throws Exception { Set<Instance> instances = cluster.getInstances(); String url = "tcp://" + instances.iterator().next().getPublicAddress().getHostAddress() + ":" + ADMIN_PORT; AdminClient client = new AdminClient(url, new AdminClientConfig()); voldemort.cluster.Cluster c = client.getAdminClientCluster(); List<String> voldemortBasedHosts = new ArrayList<String>(); for (Node node : c.getNodes()) voldemortBasedHosts.add(node.getHost()); List<String> whirrBasedHosts = new ArrayList<String>(); for (Instance instance : instances) whirrBasedHosts.add(instance.getPrivateAddress().getHostAddress()); Collections.sort(voldemortBasedHosts); Collections.sort(whirrBasedHosts); Assert.assertEquals(whirrBasedHosts, voldemortBasedHosts); } @After public void tearDown() throws IOException, InterruptedException { if (controller != null) { controller.destroyCluster(clusterSpec); } } }