| package org.apache.helix.integration; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.helix.ExternalViewChangeListener; |
| import org.apache.helix.HelixManager; |
| import org.apache.helix.HelixManagerFactory; |
| import org.apache.helix.InstanceType; |
| import org.apache.helix.NotificationContext; |
| import org.apache.helix.integration.common.ZkStandAloneCMTestBase; |
| import org.apache.helix.model.ExternalView; |
| import org.apache.helix.tools.ClusterStateVerifier; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| public class TestBasicSpectator extends ZkStandAloneCMTestBase implements |
| ExternalViewChangeListener { |
| Map<String, Integer> _externalViewChanges = new HashMap<String, Integer>(); |
| |
| @Test |
| public void TestSpectator() throws Exception { |
| HelixManager relayHelixManager = |
| HelixManagerFactory.getZKHelixManager(CLUSTER_NAME, null, InstanceType.SPECTATOR, ZK_ADDR); |
| |
| try { |
| relayHelixManager.connect(); |
| relayHelixManager.addExternalViewChangeListener(this); |
| |
| _gSetupTool.addResourceToCluster(CLUSTER_NAME, "NextDB", 64, STATE_MODEL); |
| _gSetupTool.rebalanceStorageCluster(CLUSTER_NAME, "NextDB", 3); |
| |
| boolean result = ClusterStateVerifier.verifyByPolling( |
| new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR, CLUSTER_NAME)); |
| |
| Assert.assertTrue(result); |
| |
| Assert.assertTrue(_externalViewChanges.containsKey("NextDB")); |
| Assert.assertTrue(_externalViewChanges.containsKey(TEST_DB)); |
| } finally { |
| if (relayHelixManager.isConnected()) { |
| relayHelixManager.disconnect(); |
| } |
| } |
| } |
| |
| @Override |
| public void onExternalViewChange(List<ExternalView> externalViewList, |
| NotificationContext changeContext) { |
| for (ExternalView view : externalViewList) { |
| if (!_externalViewChanges.containsKey(view.getResourceName())) { |
| _externalViewChanges.put(view.getResourceName(), 1); |
| } else { |
| _externalViewChanges.put(view.getResourceName(), |
| _externalViewChanges.get(view.getResourceName()) + 1); |
| } |
| } |
| } |
| } |