opendaylight/md-sal/sal-akka-raft-example/src/main/java/org/opendaylight/controller/cluster/example/TestDriver.java

   1 /*
   2  * Copyright (c) 2014, 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.cluster.example;
  10
  11 import akka.actor.ActorRef;
  12 import akka.actor.ActorSystem;
  13 import com.google.common.base.Optional;
  14 import com.google.common.collect.Lists;
  15 import com.typesafe.config.ConfigFactory;
  16 import java.io.BufferedReader;
  17 import java.io.InputStreamReader;
  18 import java.util.HashMap;
  19 import java.util.List;
  20 import java.util.Map;
  21 import java.util.concurrent.ConcurrentHashMap;
  22 import org.opendaylight.controller.cluster.example.messages.PrintRole;
  23 import org.opendaylight.controller.cluster.example.messages.PrintState;
  24 import org.opendaylight.controller.cluster.raft.ConfigParams;
  25
  26 /**
  27  * This is a test driver for testing akka-raft implementation
  28  * Its uses ExampleActors and threads to push content(key-vals) to these actors
  29  * Each ExampleActor can have one or more ClientActors. Each ClientActor spawns
  30  * a thread and starts push logs to the actor its assigned to.
  31  */
  32 @SuppressWarnings("checkstyle:RegexpSingleLineJava")
  33 public class TestDriver {
  34     private static Map<String, String> allPeers = new HashMap<>();
  35     private static Map<String, ActorRef> clientActorRefs  = new HashMap<>();
  36     private static Map<String, ActorRef> actorRefs = new HashMap<>();
  37     private static LogGenerator logGenerator = new LogGenerator();
  38     private int nameCounter = 0;
  39     private static ConfigParams configParams = new ExampleConfigParamsImpl();
  40
  41     private static ActorSystem actorSystem;
  42     private static ActorSystem listenerActorSystem;
  43
  44     /**
  45      * Create nodes, add clients and start logging.
  46      * Commands
  47      *  bye
  48      *  createNodes:{num}
  49      *  stopNode:{nodeName}
  50      *  reinstateNode:{nodeName}
  51      *  addClients:{num}
  52      *  addClientsToNode:{nodeName, num}
  53      *  startLogging
  54      *  stopLogging
  55      *  startLoggingForClient:{nodeName}
  56      *  stopLoggingForClient:{nodeName}
  57      *  printNodes
  58      *  printState
  59      *
  60      * <p>
  61      *  Note: when run on IDE and on debug log level, the debug logs in
  62      *  AbstractUptypedActor and AbstractUptypedPersistentActor would need to be commented out.
  63      *  Also RaftActor handleCommand(), debug log which prints for every command other than AE/AER
  64      */
  65     public static void main(String[] args) throws Exception {
  66
  67         actorSystem = ActorSystem.create("raft-test", ConfigFactory
  68             .load().getConfig("raft-test"));
  69
  70         listenerActorSystem = ActorSystem.create("raft-test-listener", ConfigFactory
  71             .load().getConfig("raft-test-listener"));
  72
  73         TestDriver td = new TestDriver();
  74
  75         System.out.println("Enter command (type bye to exit):");
  76
  77
  78         BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
  79         while (true) {
  80             String command = br.readLine();
  81             if (command.startsWith("bye")) {
  82                 System.exit(0);
  83
  84             } else if (command.startsWith("createNodes")) {
  85                 String[] arr = command.split(":");
  86                 int num = Integer.parseInt(arr[1]);
  87                 td.createNodes(num);
  88
  89             } else if (command.startsWith("addClients")) {
  90                 String[] arr = command.split(":");
  91                 int num = Integer.parseInt(arr[1]);
  92                 td.addClients(num);
  93
  94             } else if (command.startsWith("addClientsToNode")) {
  95                 String[] arr = command.split(":");
  96                 String nodeName = arr[1];
  97                 int num = Integer.parseInt(arr[1]);
  98                 td.addClientsToNode(nodeName, num);
  99
 100             } else if (command.startsWith("stopNode")) {
 101                 String[] arr = command.split(":");
 102                 td.stopNode(arr[1]);
 103
 104             } else if (command.startsWith("reinstateNode")) {
 105                 String[] arr = command.split(":");
 106                 td.reinstateNode(arr[1]);
 107
 108             } else if (command.startsWith("startLogging")) {
 109                 td.startAllLogging();
 110
 111             } else if (command.startsWith("startLoggingForClient")) {
 112                 String[] arr = command.split(":");
 113                 td.startLoggingForClient(clientActorRefs.get(arr[1]));
 114
 115             } else if (command.startsWith("stopLogging")) {
 116                 td.stopAllLogging();
 117
 118             } else if (command.startsWith("stopLoggingForClient")) {
 119                 String[] arr = command.split(":");
 120                 td.stopLoggingForClient(clientActorRefs.get(arr[1]));
 121
 122             } else if (command.startsWith("printState")) {
 123                 td.printState();
 124             } else if (command.startsWith("printNodes")) {
 125                 td.printNodes();
 126             } else {
 127                 System.out.println("Invalid command:" + command);
 128             }
 129
 130         }
 131     }
 132
 133     // create the listener using a separate actor system for each example actor
 134     private static void createClusterRoleChangeListener(List<String> memberIds) {
 135         System.out.println("memberIds=" + memberIds);
 136         for (String memberId : memberIds) {
 137             ActorRef listenerActor = listenerActorSystem.actorOf(
 138                 ExampleRoleChangeListener.getProps(memberId), memberId + "-role-change-listener");
 139             System.out.println("Role Change Listener created:" + listenerActor.path().toString());
 140         }
 141     }
 142
 143     public static ActorRef createExampleActor(String name) {
 144         return actorSystem.actorOf(ExampleActor.props(name, withoutPeer(name),
 145             Optional.of(configParams)), name);
 146     }
 147
 148     public void createNodes(int num) {
 149         for (int i = 0; i < num; i++)  {
 150             nameCounter = nameCounter + 1;
 151             allPeers.put("example-" + nameCounter, "akka://raft-test/user/example-" + nameCounter);
 152         }
 153
 154         for (String s : allPeers.keySet())  {
 155             ActorRef exampleActor = createExampleActor(s);
 156             actorRefs.put(s, exampleActor);
 157             System.out.println("Created node:" + s);
 158         }
 159
 160         createClusterRoleChangeListener(Lists.newArrayList(allPeers.keySet()));
 161     }
 162
 163     // add num clients to all nodes in the system
 164     public void addClients(int num) {
 165         for (Map.Entry<String, ActorRef> actorRefEntry : actorRefs.entrySet()) {
 166             for (int i = 0; i < num; i++) {
 167                 String clientName = "client-" + i + "-" + actorRefEntry.getKey();
 168                 ActorRef clientActor = actorSystem.actorOf(
 169                     ClientActor.props(actorRefEntry.getValue()), clientName);
 170                 clientActorRefs.put(clientName, clientActor);
 171                 System.out.println("Created client-node:" + clientName);
 172             }
 173         }
 174     }
 175
 176     // add num clients to a node
 177     public void addClientsToNode(String actorName, int num) {
 178         ActorRef actorRef = actorRefs.get(actorName);
 179         for (int i = 0; i < num; i++) {
 180             String clientName = "client-" + i + "-" + actorName;
 181             clientActorRefs.put(clientName,
 182                 actorSystem.actorOf(ClientActor.props(actorRef), clientName));
 183             System.out.println("Added client-node:" + clientName);
 184         }
 185     }
 186
 187     public void stopNode(String actorName) {
 188         ActorRef actorRef = actorRefs.get(actorName);
 189
 190         for (Map.Entry<String,ActorRef> entry : clientActorRefs.entrySet()) {
 191             if (entry.getKey().endsWith(actorName)) {
 192                 actorSystem.stop(entry.getValue());
 193             }
 194         }
 195
 196         actorSystem.stop(actorRef);
 197         actorRefs.remove(actorName);
 198         allPeers.remove(actorName);
 199     }
 200
 201     public void reinstateNode(String actorName) {
 202         String address = "akka://default/user/" + actorName;
 203         allPeers.put(actorName, address);
 204
 205         ActorRef exampleActor = createExampleActor(actorName);
 206         actorRefs.put(actorName, exampleActor);
 207
 208         addClientsToNode(actorName, 1);
 209     }
 210
 211     public void startAllLogging() {
 212         if (!clientActorRefs.isEmpty()) {
 213             for (Map.Entry<String, ActorRef> client : clientActorRefs.entrySet()) {
 214                 logGenerator.startLoggingForClient(client.getValue());
 215                 System.out.println("Started logging for client:" + client.getKey());
 216             }
 217         } else {
 218             System.out.println(
 219                     "There are no clients for any nodes. First create clients using commands- addClients:<num> or "
 220                     + "addClientsToNode:<nodename>:<num>");
 221         }
 222     }
 223
 224     public void startLoggingForClient(ActorRef client) {
 225         logGenerator.startLoggingForClient(client);
 226     }
 227
 228     public void stopAllLogging() {
 229         for (Map.Entry<String, ActorRef> client : clientActorRefs.entrySet()) {
 230             logGenerator.stopLoggingForClient(client.getValue());
 231         }
 232     }
 233
 234     public void stopLoggingForClient(ActorRef client) {
 235         logGenerator.stopLoggingForClient(client);
 236     }
 237
 238     public void printState() {
 239         for (ActorRef ref : actorRefs.values()) {
 240             ref.tell(new PrintState(), null);
 241         }
 242     }
 243
 244     public void printNodes() {
 245         for (ActorRef ref : actorRefs.values()) {
 246             ref.tell(new PrintRole(), null);
 247         }
 248     }
 249
 250     public ActorRef getLeader() {
 251         return null;
 252     }
 253
 254
 255     private static Map<String, String> withoutPeer(String peerId) {
 256         Map<String, String> without = new ConcurrentHashMap<>(allPeers);
 257         without.remove(peerId);
 258
 259         return without;
 260     }
 261 }
 262