| package org.apache.helix.integration.messaging; |
| |
| /* |
| * 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.Date; |
| |
| import org.apache.helix.NotificationContext; |
| import org.apache.helix.PropertyKey.Builder; |
| import org.apache.helix.TestHelper; |
| import org.apache.helix.zookeeper.datamodel.ZNRecord; |
| import org.apache.helix.ZkUnitTestBase; |
| import org.apache.helix.integration.manager.ClusterControllerManager; |
| import org.apache.helix.integration.manager.MockParticipantManager; |
| import org.apache.helix.manager.zk.ZKHelixDataAccessor; |
| import org.apache.helix.manager.zk.ZkBaseDataAccessor; |
| import org.apache.helix.messaging.handling.BatchMessageWrapper; |
| import org.apache.helix.mock.participant.MockMSModelFactory; |
| import org.apache.helix.model.IdealState; |
| import org.apache.helix.model.Message; |
| import org.apache.helix.tools.ClusterVerifiers.BestPossibleExternalViewVerifier; |
| import org.apache.helix.tools.ClusterVerifiers.ZkHelixClusterVerifier; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| public class TestBatchMessageWrapper extends ZkUnitTestBase { |
| class MockBatchMsgWrapper extends BatchMessageWrapper { |
| int _startCount = 0; |
| int _endCount = 0; |
| |
| @Override |
| public void start(Message batchMsg, NotificationContext context) { |
| // System.out.println("test batchMsg.start() invoked, " + batchMsg.getTgtName()); |
| _startCount++; |
| } |
| |
| @Override |
| public void end(Message batchMsg, NotificationContext context) { |
| // System.out.println("test batchMsg.end() invoked, " + batchMsg.getTgtName()); |
| _endCount++; |
| } |
| } |
| |
| class TestMockMSModelFactory extends MockMSModelFactory { |
| @Override |
| public BatchMessageWrapper createBatchMessageWrapper(String resourceName) { |
| return new MockBatchMsgWrapper(); |
| } |
| } |
| |
| @Test |
| public void testBasic() throws Exception { |
| String className = TestHelper.getTestClassName(); |
| String methodName = TestHelper.getTestMethodName(); |
| String clusterName = className + "_" + methodName; |
| final int n = 2; |
| |
| System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis())); |
| |
| TestHelper.setupCluster(clusterName, ZK_ADDR, 12918, // startPort |
| "localhost", // participantNamePrefix |
| "TestDB", // resourceNamePrefix |
| 1, // resourceNb |
| 2, // partitionNb |
| n, // nodesNb |
| 2, // replica |
| "MasterSlave", true); |
| |
| // enable batch-message |
| ZKHelixDataAccessor accessor = |
| new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient)); |
| Builder keyBuilder = accessor.keyBuilder(); |
| IdealState idealState = accessor.getProperty(keyBuilder.idealStates("TestDB0")); |
| idealState.setBatchMessageMode(true); |
| accessor.setProperty(keyBuilder.idealStates("TestDB0"), idealState); |
| |
| ClusterControllerManager controller = |
| new ClusterControllerManager(ZK_ADDR, clusterName, "controller_0"); |
| controller.syncStart(); |
| |
| // start participants |
| MockParticipantManager[] participants = new MockParticipantManager[n]; |
| TestMockMSModelFactory[] ftys = new TestMockMSModelFactory[n]; |
| |
| for (int i = 0; i < n; i++) { |
| String instanceName = "localhost_" + (12918 + i); |
| ftys[i] = new TestMockMSModelFactory(); |
| participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName); |
| participants[i].getStateMachineEngine().registerStateModelFactory("MasterSlave", ftys[i]); |
| participants[i].syncStart(); |
| int finalI = i; |
| TestHelper.verify(() -> participants[finalI].isConnected() |
| && accessor.getChildNames(keyBuilder.liveInstances()) |
| .contains(participants[finalI].getInstanceName()), |
| TestHelper.WAIT_DURATION); |
| |
| // wait for each participant to complete state transitions, so we have deterministic results |
| ZkHelixClusterVerifier _clusterVerifier = |
| new BestPossibleExternalViewVerifier.Builder(clusterName).setZkClient(_gZkClient) |
| .setWaitTillVerify(TestHelper.DEFAULT_REBALANCE_PROCESSING_WAIT_TIME) |
| .build(); |
| Assert.assertTrue(_clusterVerifier.verifyByPolling(), |
| "participant: " + instanceName + " fails to complete all transitions"); |
| } |
| |
| // check batch-msg-wrapper counts |
| MockBatchMsgWrapper wrapper = (MockBatchMsgWrapper) ftys[0].getBatchMessageWrapper("TestDB0"); |
| // System.out.println("startCount: " + wrapper._startCount); |
| Assert.assertEquals(wrapper._startCount, 3, |
| "Expect 3 batch.start: O->S, S->M, and M->S for 1st participant"); |
| // System.out.println("endCount: " + wrapper._endCount); |
| Assert.assertEquals(wrapper._endCount, 3, |
| "Expect 3 batch.end: O->S, S->M, and M->S for 1st participant"); |
| |
| wrapper = (MockBatchMsgWrapper) ftys[1].getBatchMessageWrapper("TestDB0"); |
| // System.out.println("startCount: " + wrapper._startCount); |
| Assert.assertEquals(wrapper._startCount, 2, |
| "Expect 2 batch.start: O->S and S->M for 2nd participant"); |
| // System.out.println("endCount: " + wrapper._endCount); |
| Assert.assertEquals(wrapper._startCount, 2, |
| "Expect 2 batch.end: O->S and S->M for 2nd participant"); |
| |
| // clean up |
| controller.syncStop(); |
| for (int i = 0; i < n; i++) { |
| participants[i].syncStop(); |
| } |
| TestHelper.dropCluster(clusterName, _gZkClient); |
| |
| System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis())); |
| } |
| |
| } |