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

   1 package org.opendaylight.controller.cluster.example;
   2
   3 import akka.actor.ActorRef;
   4 import akka.actor.ActorSystem;
   5 import com.google.common.base.Optional;
   6 import org.opendaylight.controller.cluster.example.messages.PrintRole;
   7 import org.opendaylight.controller.cluster.example.messages.PrintState;
   8 import org.opendaylight.controller.cluster.raft.ConfigParams;
   9
  10 import java.io.BufferedReader;
  11 import java.io.InputStreamReader;
  12 import java.util.HashMap;
  13 import java.util.Map;
  14 import java.util.concurrent.ConcurrentHashMap;
  15
  16 /**
  17  * This is a test driver for testing akka-raft implementation
  18  * Its uses ExampleActors and threads to push content(key-vals) to these actors
  19  * Each ExampleActor can have one or more ClientActors. Each ClientActor spawns
  20  * a thread and starts push logs to the actor its assigned to.
  21  */
  22 public class TestDriver {
  23
  24     private static final ActorSystem actorSystem = ActorSystem.create();
  25     private static Map<String, String> allPeers = new HashMap<>();
  26     private static Map<String, ActorRef> clientActorRefs  = new HashMap<String, ActorRef>();
  27     private static Map<String, ActorRef> actorRefs = new HashMap<String, ActorRef>();
  28     private static LogGenerator logGenerator = new LogGenerator();
  29     private int nameCounter = 0;
  30     private static ConfigParams configParams = new ExampleConfigParamsImpl();
  31
  32     /**
  33      * Create nodes, add clients and start logging.
  34      * Commands
  35      *  bye
  36      *  createNodes:{num}
  37      *  stopNode:{nodeName}
  38      *  reinstateNode:{nodeName}
  39      *  addClients:{num}
  40      *  addClientsToNode:{nodeName, num}
  41      *  startLogging
  42      *  stopLogging
  43      *  startLoggingForClient:{nodeName}
  44      *  stopLoggingForClient:{nodeName}
  45      *  printNodes
  46      *  printState
  47      * @param args
  48      * @throws Exception
  49      */
  50     public static void main(String[] args) throws Exception {
  51         TestDriver td = new TestDriver();
  52
  53         System.out.println("Enter command (type bye to exit):");
  54
  55
  56         BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
  57         while(true) {
  58             String command = br.readLine();
  59             if (command.startsWith("bye")) {
  60                 System.exit(0);
  61
  62             } else if (command.startsWith("createNodes")) {
  63                 String[] arr = command.split(":");
  64                 int n = Integer.parseInt(arr[1]);
  65                 td.createNodes(n);
  66
  67             } else if (command.startsWith("addClients")) {
  68                 String[] arr = command.split(":");
  69                 int n = Integer.parseInt(arr[1]);
  70                 td.addClients(n);
  71
  72             } else if (command.startsWith("addClientsToNode")) {
  73                 String[] arr = command.split(":");
  74                 String nodeName = arr[1];
  75                 int n = Integer.parseInt(arr[1]);
  76                 td.addClientsToNode(nodeName, n);
  77
  78             } else if (command.startsWith("stopNode")) {
  79                 String[] arr = command.split(":");
  80                 td.stopNode(arr[1]);
  81
  82             } else if (command.startsWith("reinstateNode")) {
  83                 String[] arr = command.split(":");
  84                 td.reinstateNode(arr[1]);
  85
  86             } else if (command.startsWith("startLogging")) {
  87                 td.startAllLogging();
  88
  89             } else if (command.startsWith("startLoggingForClient")) {
  90                 String[] arr = command.split(":");
  91                 td.startLoggingForClient(clientActorRefs.get(arr[1]));
  92
  93             } else if (command.startsWith("stopLogging")) {
  94                 td.stopAllLogging();
  95
  96             } else if (command.startsWith("stopLoggingForClient")) {
  97                 String[] arr = command.split(":");
  98                 td.stopLoggingForClient(clientActorRefs.get(arr[1]));
  99
 100             } else if (command.startsWith("printState")) {
 101                 td.printState();
 102             } else if (command.startsWith("printNodes")) {
 103                 td.printNodes();
 104             } else {
 105                 System.out.println("Invalid command:" + command);
 106             }
 107
 108         }
 109     }
 110
 111     public static ActorRef createExampleActor(String name) {
 112         return actorSystem.actorOf(ExampleActor.props(name, withoutPeer(name),
 113             Optional.of(configParams)), name);
 114     }
 115
 116     public void createNodes(int num) {
 117         for (int i=0; i < num; i++)  {
 118             nameCounter = nameCounter + 1;
 119             allPeers.put("example-"+nameCounter, "akka://default/user/example-"+nameCounter);
 120         }
 121
 122         for (String s : allPeers.keySet())  {
 123             ActorRef exampleActor = createExampleActor(s);
 124             actorRefs.put(s, exampleActor);
 125             System.out.println("Created node:"+s);
 126
 127         }
 128     }
 129
 130     // add num clients to all nodes in the system
 131     public void addClients(int num) {
 132         for(Map.Entry<String,ActorRef> actorRefEntry : actorRefs.entrySet()) {
 133             for (int i=0; i < num; i++) {
 134                 String clientName = "client-" + i + "-" + actorRefEntry.getKey();
 135                 ActorRef clientActor = actorSystem.actorOf(
 136                     ClientActor.props(actorRefEntry.getValue()), clientName);
 137                 clientActorRefs.put(clientName, clientActor);
 138                 System.out.println("Created client-node:" + clientName);
 139             }
 140         }
 141     }
 142
 143     // add num clients to a node
 144     public void addClientsToNode(String actorName, int num) {
 145         ActorRef actorRef = actorRefs.get(actorName);
 146         for (int i=0; i < num; i++) {
 147             String clientName = "client-" + i + "-" + actorName;
 148             clientActorRefs.put(clientName,
 149                 actorSystem.actorOf(ClientActor.props(actorRef), clientName));
 150             System.out.println("Added client-node:" + clientName);
 151         }
 152     }
 153
 154     public void stopNode(String actorName) {
 155         ActorRef actorRef = actorRefs.get(actorName);
 156
 157         for (Map.Entry<String,ActorRef> entry : clientActorRefs.entrySet()) {
 158             if (entry.getKey().endsWith(actorName)) {
 159                 actorSystem.stop(entry.getValue());
 160             }
 161         }
 162
 163         actorSystem.stop(actorRef);
 164         actorRefs.remove(actorName);
 165         allPeers.remove(actorName);
 166     }
 167
 168     public void reinstateNode(String actorName) {
 169         String address = "akka://default/user/"+actorName;
 170         allPeers.put(actorName, address);
 171
 172         ActorRef exampleActor = createExampleActor(actorName);
 173         actorRefs.put(actorName, exampleActor);
 174
 175         addClientsToNode(actorName, 1);
 176     }
 177
 178     public void startAllLogging() {
 179         if(!clientActorRefs.isEmpty()) {
 180             for(Map.Entry<String,ActorRef> client : clientActorRefs.entrySet()) {
 181                 logGenerator.startLoggingForClient(client.getValue());
 182                 System.out.println("Started logging for client:"+client.getKey());
 183             }
 184         } else {
 185             System.out.println("There are no clients for any nodes. First create clients using commands- addClients:<num> or addClientsToNode:<nodename>:<num>");
 186         }
 187
 188     }
 189
 190     public void startLoggingForClient(ActorRef client) {
 191         logGenerator.startLoggingForClient(client);
 192     }
 193
 194     public void stopAllLogging() {
 195         for(Map.Entry<String,ActorRef> client : clientActorRefs.entrySet()) {
 196             logGenerator.stopLoggingForClient(client.getValue());
 197         }
 198     }
 199
 200     public void stopLoggingForClient(ActorRef client) {
 201         logGenerator.stopLoggingForClient(client);
 202     }
 203
 204     public void printState() {
 205         for (ActorRef ref : actorRefs.values()) {
 206             ref.tell(new PrintState(), null);
 207         }
 208     }
 209
 210     public void printNodes() {
 211         for (ActorRef ref : actorRefs.values()) {
 212             ref.tell(new PrintRole(), null);
 213         }
 214     }
 215
 216     public ActorRef getLeader() {
 217         return null;
 218     }
 219
 220
 221     private static Map<String, String> withoutPeer(String peerId) {
 222         Map<String, String> without = new ConcurrentHashMap<>(allPeers);
 223         without.remove(peerId);
 224
 225         return without;
 226     }
 227 }
 228