| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.ratis.server.impl; |
| |
| import org.apache.ratis.BaseTest; |
| import org.apache.ratis.conf.RaftProperties; |
| import org.apache.ratis.protocol.RaftGroupId; |
| import org.apache.ratis.protocol.RaftPeerId; |
| import org.apache.ratis.server.RaftServerMXBean; |
| import org.apache.ratis.server.simulation.MiniRaftClusterWithSimulatedRpc; |
| import org.apache.ratis.util.JmxRegister; |
| import org.junit.jupiter.api.Assertions; |
| import org.junit.jupiter.api.Test; |
| import org.junit.jupiter.api.Timeout; |
| |
| import javax.management.JMException; |
| import javax.management.MBeanServer; |
| import javax.management.ObjectInstance; |
| import javax.management.ObjectName; |
| import java.lang.management.ManagementFactory; |
| import java.util.List; |
| import java.util.Set; |
| |
| import static org.apache.ratis.RaftTestUtil.waitForLeader; |
| |
| public class TestRaftServerJmx extends BaseTest { |
| @Test |
| @Timeout(value = 30) |
| public void testJmxBeans() throws Exception { |
| final int NUM_SERVERS = 3; |
| final MiniRaftClusterWithSimulatedRpc cluster |
| = MiniRaftClusterWithSimulatedRpc.FACTORY.newCluster(3, new RaftProperties()); |
| cluster.start(); |
| waitForLeader(cluster); |
| |
| MBeanServer platformMBeanServer = ManagementFactory.getPlatformMBeanServer(); |
| Set<ObjectInstance> objectInstances = platformMBeanServer.queryMBeans(new ObjectName("Ratis:*"), null); |
| Assertions.assertEquals(NUM_SERVERS, objectInstances.size()); |
| |
| for (ObjectInstance instance : objectInstances) { |
| Object groupId = platformMBeanServer.getAttribute(instance.getObjectName(), "GroupId"); |
| Assertions.assertEquals(cluster.getGroupId().toString(), groupId); |
| } |
| cluster.shutdown(); |
| } |
| |
| @Test |
| @Timeout(value = 30) |
| public void testRegister() throws JMException { |
| { |
| final JmxRegister jmx = new JmxRegister(); |
| runUnregister(false, jmx); |
| |
| runRegister(true, "abc", jmx); |
| runRegister(false, "abc", jmx); |
| runUnregister(true, jmx); |
| runUnregister(false, jmx); |
| |
| runRegister(true, "abc", jmx); |
| runUnregister(true, jmx); |
| runUnregister(false, jmx); |
| } |
| |
| { |
| final JmxRegister jmx = new JmxRegister(); |
| runRegister(true, "host:1234", jmx); |
| runUnregister(true, jmx); |
| runUnregister(false, jmx); |
| } |
| } |
| |
| static void runRegister(boolean expectToSucceed, String name, JmxRegister jmx) { |
| final RaftServerMXBean mBean = new RaftServerMXBean() { |
| @Override |
| public String getId() { return null; } |
| @Override |
| public String getLeaderId() { return null; } |
| @Override |
| public long getCurrentTerm() { return 0; } |
| @Override |
| public String getGroupId() { return null; } |
| @Override |
| public String getRole() { return null; } |
| @Override |
| public List<String> getFollowers() { return null; } |
| @Override |
| public List<String> getGroups() { return null; } |
| |
| }; |
| final String id = RaftPeerId.valueOf(name).toString(); |
| final String groupId = RaftGroupId.randomId().toString(); |
| final boolean succeeded = RaftServerJmxAdapter.registerMBean(id, groupId, mBean, jmx); |
| Assertions.assertEquals(expectToSucceed, succeeded); |
| } |
| |
| static void runUnregister(boolean expectToSucceed, JmxRegister jmx) throws JMException { |
| final boolean succeeded = jmx.unregister(); |
| Assertions.assertEquals(expectToSucceed, succeeded); |
| } |
| } |