| /** |
| * 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.pulsar.metadata; |
| |
| import static org.testng.Assert.assertTrue; |
| |
| import java.io.BufferedReader; |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStreamReader; |
| import java.io.OutputStream; |
| import java.net.InetSocketAddress; |
| import java.net.Socket; |
| |
| import java.nio.charset.StandardCharsets; |
| |
| import lombok.extern.slf4j.Slf4j; |
| |
| import org.apache.commons.io.FileUtils; |
| import org.apache.zookeeper.KeeperException; |
| import org.apache.zookeeper.server.ContainerManager; |
| import org.apache.zookeeper.server.NIOServerCnxnFactory; |
| import org.apache.zookeeper.server.Request; |
| import org.apache.zookeeper.server.RequestProcessor; |
| import org.apache.zookeeper.server.ServerCnxnFactory; |
| import org.apache.zookeeper.server.SessionTracker; |
| import org.apache.zookeeper.server.ZooKeeperServer; |
| import org.assertj.core.util.Files; |
| |
| @Slf4j |
| public class TestZKServer implements AutoCloseable { |
| public static final int TICK_TIME = 1000; |
| protected ZooKeeperServer zks; |
| private final File zkDataDir; |
| private ServerCnxnFactory serverFactory; |
| private ContainerManager containerManager; |
| |
| private int zkPort = 0; |
| |
| public TestZKServer() throws Exception { |
| this.zkDataDir = Files.newTemporaryFolder(); |
| this.zkDataDir.deleteOnExit(); |
| // Allow all commands on ZK control port |
| System.setProperty("zookeeper.4lw.commands.whitelist", "*"); |
| // disable the admin server as to not have any port conflicts |
| System.setProperty("zookeeper.admin.enableServer", "false"); |
| start(); |
| } |
| |
| public void start() throws Exception { |
| this.zks = new ZooKeeperServer(zkDataDir, zkDataDir, TICK_TIME); |
| this.zks.setMaxSessionTimeout(300_000); |
| this.serverFactory = new NIOServerCnxnFactory(); |
| this.serverFactory.configure(new InetSocketAddress(zkPort), 1000); |
| this.serverFactory.startup(zks, true); |
| |
| this.zkPort = serverFactory.getLocalPort(); |
| log.info("Started test ZK server on port {}", zkPort); |
| |
| boolean zkServerReady = waitForServerUp(this.getConnectionString(), 30_000); |
| assertTrue(zkServerReady); |
| |
| this.containerManager = new ContainerManager(zks.getZKDatabase(), new RequestProcessor() { |
| @Override |
| public void processRequest(Request request) throws RequestProcessorException { |
| String path = StandardCharsets.UTF_8.decode(request.request).toString(); |
| try { |
| zks.getZKDatabase().getDataTree().deleteNode(path, -1); |
| } catch (KeeperException.NoNodeException e) { |
| // Ok |
| } |
| } |
| |
| @Override |
| public void shutdown() { |
| |
| } |
| }, 10, 10000, 0L); |
| } |
| |
| public void checkContainers() throws Exception { |
| // Make sure the container nodes are actually deleted |
| Thread.sleep(1000); |
| |
| containerManager.checkContainers(); |
| } |
| |
| public void stop() throws Exception { |
| if (containerManager != null) { |
| containerManager.stop(); |
| containerManager = null; |
| } |
| |
| if (serverFactory != null) { |
| serverFactory.shutdown(); |
| serverFactory = null; |
| } |
| |
| if (zks != null) { |
| SessionTracker sessionTracker = zks.getSessionTracker(); |
| zks.shutdown(); |
| zks.getZKDatabase().close(); |
| if (sessionTracker instanceof Thread) { |
| Thread sessionTrackerThread = (Thread) sessionTracker; |
| sessionTrackerThread.interrupt(); |
| sessionTrackerThread.join(); |
| } |
| zks = null; |
| } |
| |
| log.info("Stopped test ZK server"); |
| } |
| |
| public void expireSession(long sessionId) { |
| zks.expire(new SessionTracker.Session() { |
| @Override |
| public long getSessionId() { |
| return sessionId; |
| } |
| |
| @Override |
| public int getTimeout() { |
| return 10_000; |
| } |
| |
| @Override |
| public boolean isClosing() { |
| return false; |
| } |
| }); |
| } |
| |
| @Override |
| public void close() throws Exception { |
| stop(); |
| FileUtils.deleteDirectory(zkDataDir); |
| } |
| |
| public int getPort() { |
| return zkPort; |
| } |
| |
| public String getConnectionString() { |
| return "127.0.0.1:" + getPort(); |
| } |
| |
| public static boolean waitForServerUp(String hp, long timeout) { |
| long start = System.currentTimeMillis(); |
| String split[] = hp.split(":"); |
| String host = split[0]; |
| int port = Integer.parseInt(split[1]); |
| while (true) { |
| try { |
| Socket sock = new Socket(host, port); |
| BufferedReader reader = null; |
| try { |
| OutputStream outstream = sock.getOutputStream(); |
| outstream.write("stat".getBytes()); |
| outstream.flush(); |
| |
| reader = new BufferedReader(new InputStreamReader(sock.getInputStream())); |
| String line = reader.readLine(); |
| if (line != null && line.startsWith("Zookeeper version:")) { |
| log.info("ZK Server UP"); |
| return true; |
| } |
| } finally { |
| sock.close(); |
| if (reader != null) { |
| reader.close(); |
| } |
| } |
| } catch (IOException e) { |
| // ignore as this is expected |
| log.info("ZK server {} not up: {}", hp, e.getMessage()); |
| } |
| |
| if (System.currentTimeMillis() > start + timeout) { |
| break; |
| } |
| try { |
| Thread.sleep(250); |
| } catch (InterruptedException e) { |
| // ignore |
| } |
| } |
| return false; |
| } |
| } |