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

   1 /*
   2  * Copyright (c) 2014 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 akka.actor.PoisonPill;
  14 import com.google.common.base.Optional;
  15 import org.opendaylight.controller.cluster.example.messages.KeyValue;
  16 import org.opendaylight.controller.cluster.raft.ConfigParams;
  17
  18 import java.io.BufferedReader;
  19 import java.io.InputStreamReader;
  20 import java.util.Arrays;
  21 import java.util.HashMap;
  22 import java.util.List;
  23 import java.util.Map;
  24
  25 public class Main {
  26     private static final ActorSystem actorSystem = ActorSystem.create();
  27     // Create three example actors
  28     private static Map<String, String> allPeers = new HashMap<>();
  29
  30     static {
  31         allPeers.put("example-1", "akka://default/user/example-1");
  32         allPeers.put("example-2", "akka://default/user/example-2");
  33         allPeers.put("example-3", "akka://default/user/example-3");
  34     }
  35
  36     public static void main(String[] args) throws Exception{
  37         ActorRef example1Actor =
  38             actorSystem.actorOf(ExampleActor.props("example-1",
  39                 withoutPeer("example-1"), Optional.<ConfigParams>absent()), "example-1");
  40
  41         ActorRef example2Actor =
  42             actorSystem.actorOf(ExampleActor.props("example-2",
  43                 withoutPeer("example-2"), Optional.<ConfigParams>absent()), "example-2");
  44
  45         ActorRef example3Actor =
  46             actorSystem.actorOf(ExampleActor.props("example-3",
  47                 withoutPeer("example-3"), Optional.<ConfigParams>absent()), "example-3");
  48
  49
  50         List<ActorRef> examples = Arrays.asList(example1Actor, example2Actor, example3Actor);
  51
  52         ActorRef clientActor = actorSystem.actorOf(ClientActor.props(example1Actor));
  53         BufferedReader br =
  54             new BufferedReader(new InputStreamReader(System.in));
  55
  56         System.out.println("Usage :");
  57         System.out.println("s <1-3> to start a peer");
  58         System.out.println("k <1-3> to kill a peer");
  59
  60         while(true) {
  61             System.out.print("Enter command (0 to exit):");
  62             try {
  63                 String s = br.readLine();
  64                 String[] split = s.split(" ");
  65                 if(split.length > 1) {
  66                     String command = split[0];
  67                     String actor = split[1];
  68
  69                     if ("k".equals(command)) {
  70                         int i = Integer.parseInt(actor);
  71                         examples.get(i - 1)
  72                             .tell(PoisonPill.getInstance(), null);
  73                         continue;
  74                     } else if ("s".equals(command)) {
  75                         int i = Integer.parseInt(actor);
  76                         String actorName = "example-" + i;
  77                         examples.add(i - 1,
  78                             actorSystem.actorOf(ExampleActor.props(actorName,
  79                                 withoutPeer(actorName), Optional.<ConfigParams>absent()),
  80                                 actorName));
  81                         System.out.println("Created actor : " + actorName);
  82                         continue;
  83                     }
  84                 }
  85
  86                 int i = Integer.parseInt(s);
  87                 if(i == 0){
  88                     System.exit(0);
  89                 }
  90                 clientActor.tell(new KeyValue("key " + i, "value " + i), null);
  91             } catch (NumberFormatException nfe) {
  92                 System.err.println("Invalid Format!");
  93             }
  94         }
  95     }
  96
  97     private static Map<String, String> withoutPeer(String peerId) {
  98         Map<String, String> without = new HashMap<>(allPeers);
  99         without.remove(peerId);
 100         return without;
 101     }
 102 }