Java tutorial
/* Licensed to Diennea S.r.l. under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. Diennea S.r.l. 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 majordodo.replication; import majordodo.task.StatusChangesLog; import majordodo.executors.TaskExecutor; import majordodo.network.BrokerLocator; import majordodo.network.netty.NettyChannelAcceptor; import majordodo.task.BasicBrokerEnv; import majordodo.task.Broker; import majordodo.worker.WorkerCore; import majordodo.worker.WorkerCoreConfiguration; import majordodo.worker.WorkerStatusListener; import java.util.Arrays; import java.util.HashMap; import java.util.Map; import java.util.concurrent.CompletableFuture; import java.util.concurrent.CountDownLatch; import java.util.concurrent.TimeUnit; import majordodo.clientfacade.AddTaskRequest; import majordodo.network.BrokerHostData; import org.apache.zookeeper.WatchedEvent; import org.apache.zookeeper.Watcher; import org.apache.zookeeper.ZooKeeper; import org.junit.After; import static org.junit.Assert.assertTrue; import org.junit.Test; import static org.junit.Assert.assertTrue; /** * Basic tests for recovery * * @author enrico.olivelli */ public class SimpleZKBrokerLocatorWithSupplierTest extends BasicBrokerEnv { NettyChannelAcceptor server; ZKTestEnv zkEnv; String host = "localhost"; int port = 7000; ZooKeeper suppliedClient; @Override protected BrokerLocator createBrokerLocator() throws Exception { suppliedClient = new ZooKeeper(zkEnv.getAddress(), zkEnv.getTimeout(), new Watcher() { @Override public void process(WatchedEvent event) { } }); return new ZKBrokerLocator(() -> suppliedClient, zkEnv.getPath()); } @Override protected StatusChangesLog createStatusChangesLog() throws Exception { return new ReplicatedCommitLog(zkEnv.getAddress(), zkEnv.getTimeout(), zkEnv.getPath(), workDir, BrokerHostData.formatHostdata(new BrokerHostData(host, port, "", false, null)), false); } @Override protected void beforeStartBroker() throws Exception { zkEnv = new ZKTestEnv(workDir); zkEnv.startBookie(); } @Override protected void afterStartBroker() throws Exception { server = new NettyChannelAcceptor(broker.getAcceptor(), host, port); server.start(); } @After public void stopServer() throws Exception { if (server != null) { server.close(); } if (suppliedClient != null) { suppliedClient.close(); } if (zkEnv != null) { zkEnv.close(); } } private static final String TASKTYPE_MYTYPE = "mytype"; private static final String userId = "queue1"; private static final int group = 12345; @Test public void workerConnectionTest() throws Exception { CountDownLatch connectedLatch = new CountDownLatch(1); CountDownLatch disconnectedLatch = new CountDownLatch(1); CountDownLatch allTaskExecuted = new CountDownLatch(1); WorkerStatusListener listener = new WorkerStatusListener() { @Override public void connectionEvent(String event, WorkerCore core) { if (event.equals(WorkerStatusListener.EVENT_CONNECTED)) { connectedLatch.countDown(); } if (event.equals(WorkerStatusListener.EVENT_DISCONNECTED)) { disconnectedLatch.countDown(); } } }; Map<String, Integer> tags = new HashMap<>(); tags.put(TASKTYPE_MYTYPE, 1); WorkerCoreConfiguration config = new WorkerCoreConfiguration(); config.setMaxPendingFinishedTaskNotifications(1); config.setWorkerId("workerid"); config.setMaxThreadsByTaskType(tags); config.setGroups(Arrays.asList(group)); declareGroupForUser(userId, group); try (WorkerCore core = new WorkerCore(config, "here", getBrokerLocator(), listener);) { core.start(); assertTrue(connectedLatch.await(10, TimeUnit.SECONDS)); core.setExecutorFactory((String tasktype, Map<String, Object> parameters) -> new TaskExecutor() { @Override public String executeTask(Map<String, Object> parameters) throws Exception { System.out.println("executeTask " + parameters); allTaskExecuted.countDown(); return ""; } }); String taskParams = "param"; long taskId = getClient().submitTask( new AddTaskRequest(0, TASKTYPE_MYTYPE, userId, taskParams, 0, 0, 0, null, 0, null, null)) .getTaskId(); assertTrue(allTaskExecuted.await(30, TimeUnit.SECONDS)); } assertTrue(disconnectedLatch.await(10, TimeUnit.SECONDS)); } }