| /* |
| * 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.knox.gateway.ha.provider.impl; |
| |
| import org.apache.curator.framework.CuratorFramework; |
| import org.apache.curator.framework.CuratorFrameworkFactory; |
| import org.apache.curator.retry.ExponentialBackoffRetry; |
| import org.apache.curator.test.TestingCluster; |
| import org.apache.knox.gateway.ha.provider.HaServiceConfig; |
| import org.apache.knox.gateway.ha.provider.URLManager; |
| import org.apache.knox.gateway.ha.provider.URLManagerLoader; |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| import java.nio.charset.StandardCharsets; |
| import java.util.List; |
| import java.util.concurrent.TimeUnit; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| public class AtlasZookeeperURLManagerTest { |
| |
| private TestingCluster cluster; |
| private AtlasZookeeperURLManager manager; |
| private static String atlasNode1 = "http://atlas.node1:21000"; |
| private static String atlasNode2 = "http://atlas.node2:21000"; |
| |
| @Before |
| public void setUp() throws Exception { |
| cluster = new TestingCluster(1); |
| cluster.start(); |
| |
| try(CuratorFramework zooKeeperClient = |
| CuratorFrameworkFactory.builder().connectString(cluster.getConnectString()) |
| .retryPolicy(new ExponentialBackoffRetry(1000, 3)) |
| .build()) { |
| |
| zooKeeperClient.start(); |
| assertTrue(zooKeeperClient.blockUntilConnected(10, TimeUnit.SECONDS)); |
| |
| zooKeeperClient.create().forPath("/apache_atlas"); |
| zooKeeperClient.create().forPath("/apache_atlas/active_server_info"); |
| zooKeeperClient.setData().forPath("/apache_atlas/active_server_info", |
| atlasNode1.getBytes(StandardCharsets.UTF_8)); |
| } |
| setAtlasActiveHostURLInZookeeper(atlasNode1); |
| |
| manager = new AtlasZookeeperURLManager(); |
| HaServiceConfig config = new DefaultHaServiceConfig("ATLAS-API"); |
| config.setEnabled(true); |
| config.setZookeeperEnsemble(cluster.getConnectString()); |
| config.setZookeeperNamespace("apache_atlas"); |
| manager.setConfig(config); |
| } |
| |
| @After |
| public void tearDown() throws IOException { |
| if(cluster != null) { |
| cluster.close(); |
| } |
| } |
| |
| @Test |
| public void testAtlasActiveUrlIsSetCorrectlyAfterLookUpFromZK() { |
| manager.lookupURLs(); |
| List<String> urls = manager.getURLs(); |
| assertEquals(atlasNode1, urls.get(0)); |
| } |
| |
| @Test |
| public void testMarkFailedCorrectlyResetTheEarlierUrl() throws Exception { |
| setAtlasActiveHostURLInZookeeper(atlasNode2); |
| |
| manager.markFailed("http://atlas.node1:21000"); |
| List<String> urls = manager.getURLs(); |
| assertNotEquals(atlasNode1, urls.get(0)); |
| assertEquals(atlasNode2, urls.get(0)); |
| } |
| |
| @Test |
| public void testAtlasURLManagerLoadingForAtlasApiService() { |
| doTestAtlasZooKeeperURLManager("ATLAS-API", true, cluster.getConnectString(), "apache_atlas"); |
| } |
| |
| @Test |
| public void testAtlasURLManagerLoadingForAtlasUIService() { |
| doTestAtlasZooKeeperURLManager("ATLAS", true, cluster.getConnectString(), "apache_atlas"); |
| } |
| |
| @Test |
| public void testAtlasURLManagerDefaultNamespace() { |
| doTestAtlasZooKeeperURLManager("ATLAS", true, cluster.getConnectString(), null); |
| } |
| |
| @Test |
| public void testAtlasAPIURLManagerDefaultNamespace() { |
| doTestAtlasZooKeeperURLManager("ATLAS-API", true, cluster.getConnectString(), null); |
| } |
| |
| @Test |
| public void testAtlasURLManagerWithLeadingSlashNamespace() { |
| doTestAtlasZooKeeperURLManager("ATLAS", true, cluster.getConnectString(), "/apache_atlas"); |
| } |
| |
| @Test |
| public void testAtlasAPIURLManagerWithLeadingSlashNamespace() { |
| doTestAtlasZooKeeperURLManager("ATLAS-API", true, cluster.getConnectString(), "/apache_atlas"); |
| } |
| |
| @Test |
| public void testAtlasAPIURLManagerWithEmptyNamespace() { |
| doTestAtlasZooKeeperURLManager("ATLAS-API", true, cluster.getConnectString(), ""); |
| } |
| |
| private void doTestAtlasZooKeeperURLManager(final String serviceName, |
| final boolean enabled, |
| final String ensemble, |
| final String namespace) { |
| HaServiceConfig config = new DefaultHaServiceConfig(serviceName); |
| config.setEnabled(enabled); |
| config.setZookeeperEnsemble(ensemble); |
| config.setZookeeperNamespace(namespace); |
| URLManager manager = URLManagerLoader.loadURLManager(config); |
| Assert.assertNotNull(manager); |
| Assert.assertTrue(manager instanceof AtlasZookeeperURLManager); |
| } |
| |
| |
| void setAtlasActiveHostURLInZookeeper(String activeURL) throws Exception { |
| try (CuratorFramework zooKeeperClient = |
| CuratorFrameworkFactory.builder().connectString(cluster.getConnectString()) |
| .retryPolicy(new ExponentialBackoffRetry(1000, 3)) |
| .build()) { |
| zooKeeperClient.start(); |
| zooKeeperClient.blockUntilConnected(10, TimeUnit.SECONDS); |
| |
| zooKeeperClient.setData().forPath("/apache_atlas/active_server_info", |
| activeURL.getBytes(StandardCharsets.UTF_8)); |
| } |
| } |
| |
| } |