| /* |
| * 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.accumulo.test.functional; |
| |
| import static java.nio.charset.StandardCharsets.UTF_8; |
| import static org.apache.accumulo.fate.util.UtilWaitThread.sleepUninterruptibly; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.ObjectInputStream; |
| import java.security.SecureRandom; |
| import java.util.ArrayList; |
| import java.util.Map; |
| import java.util.Random; |
| import java.util.TreeMap; |
| import java.util.UUID; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.accumulo.core.conf.SiteConfiguration; |
| import org.apache.accumulo.fate.zookeeper.ZooReaderWriter; |
| import org.apache.accumulo.fate.zookeeper.ZooUtil.NodeExistsPolicy; |
| import org.apache.accumulo.fate.zookeeper.ZooUtil.NodeMissingPolicy; |
| |
| import edu.umd.cs.findbugs.annotations.SuppressFBWarnings; |
| |
| public class CacheTestWriter { |
| |
| static final int NUM_DATA = 3; |
| |
| @SuppressFBWarnings(value = {"PATH_TRAVERSAL_IN", "OBJECT_DESERIALIZATION"}, |
| justification = "path provided by test; object deserialization is okay for test") |
| public static void main(String[] args) throws Exception { |
| var zk = new ZooReaderWriter(SiteConfiguration.auto()); |
| |
| String rootDir = args[0]; |
| File reportDir = new File(args[1]); |
| int numReaders = Integer.parseInt(args[2]); |
| int numVerifications = Integer.parseInt(args[3]); |
| int numData = NUM_DATA; |
| |
| boolean dataSExists = false; |
| int count = 0; |
| |
| zk.putPersistentData(rootDir, new byte[0], NodeExistsPolicy.FAIL); |
| for (int i = 0; i < numData; i++) { |
| zk.putPersistentData(rootDir + "/data" + i, new byte[0], NodeExistsPolicy.FAIL); |
| } |
| |
| zk.putPersistentData(rootDir + "/dir", new byte[0], NodeExistsPolicy.FAIL); |
| |
| ArrayList<String> children = new ArrayList<>(); |
| |
| Random r = new SecureRandom(); |
| |
| while (count++ < numVerifications) { |
| |
| Map<String,String> expectedData = null; |
| // change children in dir |
| |
| for (int u = 0; u < r.nextInt(4) + 1; u++) { |
| expectedData = new TreeMap<>(); |
| |
| if (r.nextFloat() < .5) { |
| String child = UUID.randomUUID().toString(); |
| zk.putPersistentData(rootDir + "/dir/" + child, new byte[0], NodeExistsPolicy.SKIP); |
| children.add(child); |
| } else if (!children.isEmpty()) { |
| int index = r.nextInt(children.size()); |
| String child = children.remove(index); |
| zk.recursiveDelete(rootDir + "/dir/" + child, NodeMissingPolicy.FAIL); |
| } |
| |
| for (String child : children) { |
| expectedData.put(rootDir + "/dir/" + child, ""); |
| } |
| |
| // change values |
| for (int i = 0; i < numData; i++) { |
| byte[] data = Long.toString(r.nextLong(), 16).getBytes(UTF_8); |
| zk.putPersistentData(rootDir + "/data" + i, data, NodeExistsPolicy.OVERWRITE); |
| expectedData.put(rootDir + "/data" + i, new String(data, UTF_8)); |
| } |
| |
| // test a data node that does not always exists... |
| if (r.nextFloat() < .5) { |
| |
| byte[] data = Long.toString(r.nextLong(), 16).getBytes(UTF_8); |
| |
| if (dataSExists) { |
| zk.putPersistentData(rootDir + "/dataS", data, NodeExistsPolicy.OVERWRITE); |
| } else { |
| zk.putPersistentData(rootDir + "/dataS", data, NodeExistsPolicy.SKIP); |
| dataSExists = true; |
| } |
| |
| expectedData.put(rootDir + "/dataS", new String(data, UTF_8)); |
| |
| } else { |
| if (dataSExists) { |
| zk.recursiveDelete(rootDir + "/dataS", NodeMissingPolicy.FAIL); |
| dataSExists = false; |
| } |
| } |
| } |
| |
| // change children in dir and change values |
| |
| System.out.println("expectedData " + expectedData); |
| |
| // wait for all readers to see changes |
| while (true) { |
| |
| File[] files = reportDir.listFiles(); |
| if (files == null) { |
| throw new IllegalStateException("report directory is inaccessible"); |
| } |
| |
| System.out.println("files.length " + files.length); |
| |
| if (files.length == numReaders) { |
| boolean ok = true; |
| |
| for (File file : files) { |
| try { |
| FileInputStream fis = new FileInputStream(file); |
| ObjectInputStream ois = new ObjectInputStream(fis); |
| |
| @SuppressWarnings("unchecked") |
| Map<String,String> readerMap = (Map<String,String>) ois.readObject(); |
| |
| fis.close(); |
| ois.close(); |
| |
| System.out.println("read " + readerMap); |
| |
| if (!readerMap.equals(expectedData)) { |
| System.out.println("maps not equals"); |
| ok = false; |
| } |
| } catch (IOException ioe) { |
| // log.warn("Failed to read "+files[i], ioe); |
| ok = false; |
| } |
| } |
| |
| if (ok) { |
| break; |
| } |
| } |
| |
| sleepUninterruptibly(5, TimeUnit.MILLISECONDS); |
| } |
| } |
| |
| zk.putPersistentData(rootDir + "/die", new byte[0], NodeExistsPolicy.FAIL); |
| } |
| |
| } |